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git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth
Luiz Augusto von Dentz says:
====================
bluetooth pull request for net:
Core:
- hci_core: use skb_get() instead of skb_clone() for req_skb
- hci_conn: re-enable advertising only for peripheral role
- hci_event: clear HCI_LE_ADV only on a created connection
- hci_sync: Clear HCI_CMD_PENDING when dropping the last request
- hci_sync: add conditional locking annotations
- hci_sync: do not leak an hci_conn when a second LE connect is rejected
- eir: Fix OOB read in eir_get_service_data()
- mgmt: fix 'hdev->discovery.uuids' NULL dereference
- L2CAP: access chan->conn safely in get/setsockopt
- L2CAP: reject accept queue add unless BT_LISTEN
- L2CAP: fix race l2cap_sock_cleanup_listen() vs. put_chan
- RFCOMM: serialize security confirmation handling
- RFCOMM: serialize session teardown
- RFCOMM: Validate MTU in rfcomm_apply_pn() to prevent infinite loop
- ISO: fix use-after-free of listener socket in iso_conn_ready
Drivers:
- btnxpuart: Validate the FW dump header length
- btnxpuart: Check remote M.2 connector availability before pwrseq
- btmtksdio: Take exclusive ownership of the SKB before TX
- btmtksdio: Fix out-of-bounds DMA read in the TX path
- hci_uart: Fix false success return in hci_uart_setup()
- hci_bcm: fix usage_count leak when autosuspend_delay is negative
- hci_h5: fix usage_count leak when autosuspend_delay is negative
- hci_intel: fix usage_count leak when autosuspend_delay is negative
- btmtk: Do not report success when subsys reset fails
- btmtk: Do not discard the subsystem reset timeout
- btusb: limit RTL8761B BROKEN_EXT_SCAN quirk to 0bda:a728
- hci_bcm4377: Ignore reserved PHY in ext adv reports on BCM4378
* tag 'for-net-2026-08-24' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth: (27 commits)
Bluetooth: RFCOMM: serialize session teardown
Bluetooth: do not leak an hci_conn when a second LE connect is rejected
Bluetooth: RFCOMM: serialize security confirmation handling
Bluetooth: btusb: limit RTL8761B BROKEN_EXT_SCAN quirk to 0bda:a728
Bluetooth: hci_uart: Fix false success return in hci_uart_setup()
Bluetooth: RFCOMM: Validate MTU in rfcomm_apply_pn() to prevent infinite loop
Bluetooth: ISO: fix use-after-free of listener socket in iso_conn_ready
Bluetooth: hci_core: use skb_get() instead of skb_clone() for req_skb
Bluetooth: hci_event: clear HCI_LE_ADV only on a created connection
Bluetooth: hci_conn: re-enable advertising only for peripheral role
Bluetooth: hci_bcm4377: Ignore reserved PHY in ext adv reports on BCM4378
Bluetooth: eir: Fix OOB read in eir_get_service_data()
Bluetooth: btnxpuart: Validate the FW dump header length
Bluetooth: hci_sync: add conditional locking annotations
Bluetooth: btnxpuart: Check remote M.2 connector availability before pwrseq
Bluetooth: btmtksdio: Fix out-of-bounds DMA read in the TX path
Bluetooth: btmtksdio: Take exclusive ownership of the SKB before TX
Bluetooth: btmtk: Do not discard the subsystem reset timeout
Bluetooth: btmtk: Do not report success when subsys reset fails
Bluetooth: L2CAP: fix race l2cap_sock_cleanup_listen() vs. put_chan
...
====================
Link: https://patch.msgid.link/20260824180639.3570348-1-luiz.dentz@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine
Pull dmaengine updates from Vinod Koul:
"Core:
- New API to combine configuration and preparation and users
New hardware support:
- Mediatek MT8189 SoC uart dma support
Updates:
- Designware dma driver flatten desc structures and simplify code,
interrupt-path groundwork changes, first part of PCI EP DMA support
- Updates to zynqmp_dma with runtime PM and device removal
improvments
- Xilinx dma optimizations for AXIDMA and MCDMA channel management"
* tag 'dmaengine-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (73 commits)
dmaengine: dw-edma: Mark emulated IRQ as level-triggered
dmaengine: idxd: assign all engines to group 0 in IAA defaults
dmaengine: qcom_hidma: remove conditional return with no effect
dmaengine: qcom-bam-dma: fix autosuspend cleanup during removal
dmaengine: fsl-edma: tracing: no ptr dereference during log output
dmaengine: dw-edma: Program endpoint function numbers
dmaengine: dw-edma-pcie: Add chip flags to match data
dmaengine: dw-edma-pcie: Handle optional data blocks
dmaengine: dw-edma-pcie: Factor out descriptor block address lookup
dmaengine: dw-edma-pcie: Add register offset match flag
dmaengine: dw-edma-pcie: Add platform ops to match data
dmaengine: dw-edma-pcie: Rename vsec_data to dma_data
dmaengine: dw-edma-pcie: Add capability match data
dmaengine: dw-edma-pcie: Track non-LL mode in DMA data
dmaengine: dw-edma: Add partial channel ownership mode
dmaengine: dw-edma: Initialize IRQ data before requesting IRQs
dmaengine: dw-edma: Add core quiesce operations
dmaengine: dw-edma: Add per-channel interrupt routing control
dmaengine: dw-edma: Factor out HDMA interrupt setup helper
dmaengine: dw-edma: Defer channel IRQ handling to workqueue
...
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git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire
Pull soundwire updates from Vinod Koul:
- Intel dmi quirks ghost list handling for Asus Zenbook Duo,
Asus ROG Zephyrus Duo and Asus Expertbook. Intel Peripheral
bra_block_alignment handling
- Cadence library BRA_NumBytes[8] support
- Qualcomm SCP address paging, bus mclk_freq support. Increase of
data ports to 17 and driver improvements
* tag 'soundwire-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
soundwire: dmi-quirks: Disable ghost Realtek on Asus ROG Zephyrus Duo
soundwire: stream: validate slave port properties
soundwire: honor clock_reg_supported in the clock scaling check
soundwire: qcom: set the bus mclk_freq property
soundwire: dmi-quirks: Disable ghost Realtek on Asus Zenbook Duo
soundwire: intel_ace2x: handle the max_data_per_frame property
soundwire: get mipi-sdw-bra-mode-max-data-per-frame property
soundwire: intel: handle Peripheral bra_block_alignment
soundwire: Add bra_block_alignment property support
soundwire: cadence_master: add BRA_NumBytes[8] support
soundwire: bus.h: repair kernel-doc comments
soundwire: intel_auxdevice: Add cs42l44 to wake_capable_list
soundwire: qcom: add SCP address paging support
soundwire: dmi-quirks: add a global ghost list
soundwire: dmi-quirks: Disable ghost Realtek on Asus Expertbook
soundwire: qcom: Allocate sruntime array dynamically
soundwire: qcom: Fix port exhaustion check in stream_alloc_ports
dt-bindings: soundwire: qcom: Increase max data ports to 17
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of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux
Pull dma-mapping updates from Marek Szyprowski:
- swiotlb:
- new configuration option for the default pool size
(Jagadeesh Pagadala)
- reduce overhead for high watermark tracking (chenhuguanshen)
- minor code cleanups and improvements (Vova Sharaienko, Honglei Huang
and Marek Szyprowski)
- add proper tracking of the shared DMA state through direct, pool and
swiotlb paths (Aneesh Kumar K.V)
This is important for confidential-computing
* tag 'dma-mapping-7.3-2026-08-24' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux:
dma/swiotlb: decouple high watermark tracking from CONFIG_DEBUG_FS
MAINTAINERS: update tree for DMA MAPPING HELPERS
dma/swiotlb: introduce Kconfig option for compile-time default pool size
dma-direct: Improve readability of the dma_direct_map_sg() for P2PDMA case
iommu/dma: simplify dma_iova_destroy() and drop the free_iova helper
dma-coherent: use KiB in DMA allocation logs
dma-coherent: fix spacing coding style issue
* tag 'dma-mapping-7.3-2026-08-24-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux: (23 commits)
swiotlb: remove unused SWIOTLB_FORCE flag
dma: swiotlb: handle set_memory_decrypted() failures
dma: swiotlb: free dynamic pools from process context
dma-direct: rename ret to cpu_addr in alloc helpers
dma-direct: select DMA address encoding from __DMA_ATTR_ALLOC_CC_SHARED
dma-direct: set decrypted flag for remapped DMA allocations
dma-direct: make dma_direct_map_phys() honor DMA_ATTR_CC_SHARED
dma-direct: Move dma_direct_map_phys() to dma/direct.c
dma-direct: pass attrs to dma_capable() for DMA_ATTR_CC_SHARED checks
dma-mapping: make dma_pgprot() honor __DMA_ATTR_ALLOC_CC_SHARED
dma: swiotlb: track pool encryption state and honor DMA_ATTR_CC_SHARED
dma: swiotlb: pass mapping attributes by reference
dma-pool: track decrypted atomic pools and select them via attrs
dma-direct: use __DMA_ATTR_ALLOC_CC_SHARED in alloc/free paths
dma-mapping: Add internal shared allocation attribute
coco: arm64: s390: powerpc: Mark secure guests with CC_ATTR_GUEST_MEM_ENCRYPT
dma-direct: swiotlb: handle swiotlb alloc/free outside __dma_direct_alloc_pages
s390: Expose protected virtualization through cc_platform_has()
swiotlb: Preserve allocation virtual address for dynamic pools
dma: free atomic pool pages by physical address
...
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The zero-copy path reads TX metadata whenever the UMEM has metadata space,
even if the descriptor does not set XDP_TX_METADATA. Pass descriptor
options through the metadata helpers and ignore metadata unless the option
is set.
This does not fix the existing per-WQE metadata handling for mlx5 MPWQEs.
Only the descriptor that starts a session passes through
xsk_tx_metadata_request() and configures offload state shared by the batch.
Metadata on descriptors joining an open session is therefore not validated
and does not configure its requested offloads. In addition, a non-NULL
metadata pointer from such a descriptor is treated as a timestamp
completion request even when XDP_TXMD_FLAGS_TIMESTAMP is not set, so its
metadata union can be overwritten with an unrequested timestamp. Fixing
mixed metadata states within one MPWQE requires a separate change.
Fixes: 48eb03dd2630 ("xsk: Add TX timestamp and TX checksum offload support")
Reviewed-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Link: https://patch.msgid.link/20260819160535.1472459-3-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add explicit padding before launch_time so xsk_tx_metadata has the same
layout on 32-bit and 64-bit systems.
On several architectures (csky, i386, nios2, m65k, openrisc, sh), the old
native 32-bit layout put launch_time at offset 12 and had a natural size of
20 bytes. Using sizeof(struct xsk_tx_metadata) as tx_metadata_len was already
rejected because the length must be a multiple of eight, so the
straightforward use of the interface was broken on those ABIs. Userspace
could still register a padded length of 24 bytes, though; mixing the old and
new layouts then silently reads launch_time from the wrong offset and
misprograms packet launch times. This intentionally replaces that
incompatible layout because the affected architectures are unlikely to
have any notable users. (x86_64 and arm64 have the most users and are _not_
affected)
Fixes: ca4419f15abd ("xsk: Add launch time hardware offload support to XDP Tx metadata")
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20260819160535.1472459-2-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab
Pull slab updates from Vlastimil Babka:
- Add kfree_rcu_nolock() that can be used from contexts where spinning
on a lock might be unsafe, such as a BPF program attached to an
arbitrary function, or in NMI context. This complements the existing
kfree_nolock() support (Harry Yoo)
- Runtime instead of compile-time slabobj_ext sizing.
Avoid wasting memory when memory allocation profiling is compiled but
not enabled, with initial partial support to also avoid wasting
memory for objcg pointers when those are not needed, while profiling
is enabled (Vlastimil Babka)
- Various non-urgent fixes, cleanups and optimizations (Hao Li,
Hongling Zeng, Li RongQing, Li Xiasong, Seongjun Hong, Shengming Hu)
* tag 'slab-for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab: (31 commits)
mm/slab, kfence, memcg: completely remove obj_ext for kfence objects
mm/slab: stop allocating objcg pointers when unnecessary
mm/slab: add cache_ and slab_needs_objcg() helpers
mm/slab: stop exporting kvfree_rcu_barrier[_on_cache]()
slub_kunit: extend the test for kfree_rcu_nolock()
mm/slab: introduce kfree_rcu_nolock()
mm/slab: introduce struct kvfree_rcu_head for kvfree_rcu batching
mm/slab: reduce slabobj_ext memory with allocation profiling disabled
mm/slab: introduce slab_obj_ext_has_codetag()
mm/slab: allow kfree_rcu_sheaf() on PREEMPT_RT
mm/slab: extend deferred free mechanism to handle rcu sheaves
mm/slab: use call_rcu() in unknown context if irqs are enabled
mm/slab: handle the !allow_spin case in kfree_rcu_sheaf()
mm/slab: change struct slabobj_ext to a union
mm/slab: replace slab.stride with obj_exts_in_object
mm/slab: abstract slabobj_ext.ref access
mm/slab: abstract slabobj_ext.objcg access
mm/slab: make slab_obj_ext() determine object index
mm: move struct slabobj_ext to mm/slab.h
mm/slab: remove objs_per_slab()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Ilpo Järvinen
"Highlights:
Major refactoring effort: stop setting acpi_device_name/class() and
pnp.device_class to facilitate their eventual removal
Many rollback/remove path fixes (presumably mostly found by AI)
Miscellaneous cleanups / refactoring / improvements
amd/halo:
- Add Halo RGB LED driver
amd/hsmp:
- Properly serialize probe, remove, and data paths
- Add support for protocol v7 used by Family 1AH Model 80H
- Fix error checking corner cases (largely from AI review)
- Reject negative power cap
amd/pmc:
- Improve behavior on platforms that do not support STB
- Add T14 Gen2 AMD (20XL) to s2idle quirk list
amd/pmf:
- Add ioctl interface to retrieve device metrics
- Add support for new metrics tables used by Family 1AH Model 80H
qcom-hamoa-ec (arm64):
- Reject short responses
asus-nb-wmi:
- Support ProArt key on ASUS ProArt PX13
asus-armoury:
- Gate PPT writes behind active fan curve
- Add power limits for more models
dell-wmi-base:
- Fix handling of ultra performance key
dell-wmi-sysman:
- Don't hex dump attribute security buffer
hp-bioscfg:
- Various fixes
- Improve reduced ACPI packages support (necessary for HP EliteBook 840 G2)
lg-laptop:
- Fix LED resource handling
- Add support for events used in newer models
- Fix keyboard backlight support on LG Gram 16T90SP
hp-wmi:
- Generalize thermal params to board params
- Manage CPU and GPU PWM independently
- Add GPU MUX switch support
- Add Victus 15-fb0xxx support
- Add OMEN MAX 16-ak0xxx, OMEN 16-n0xxx, OMEN 16-wd0xxx, OMEN
16-wf0xxx, and OMEN board ID 8D88 support
- Add OMEN Transcend 16-u0xxx support
huawei:
- Add support for Fn-lock ACPI interface found on newer Huawei
laptops such as MateBook 14 2024
ISST:
- Improve input validation (many fixes)
- Disallow SST-CP (core-power) feature if perf profile add fails
lenovo/yb9-kbdock:
- Add driver for Yoga Book 9 14IAH10
lenovo/ymc:
- Extend hinge switch query to support Yoga 9 2-in-1 14IPH11
- Prevent loading on Yoga Book 9 14IAH10 to avoid duplicated input
nodes
msi-ec:
- Add MSI Raider A18 HX A9WJG and MSI Katana GF76 11UEK support
msi-wmi:
- Add MSI Claw M-Center keys support
oxpec:
- Add support for OneXPlayer X2 Mini Pro
redmi-wmi:
- Report kbd backlight cycle, OEM preset power mode, and FnLock
toggle events to userspace
samsung-galaxybook:
- Add Samsung Galaxy Book6 Pro support
thinkpad_acpi:
- Add USB-C Security support
uniwill-laptop:
- Add keyboard backlight, AC auto boot, and USB powershare support
- Add MACHENIKE L16 Pro, AiStone X4SP4NAL, and Avell A60 MUV support
- Make lightbar max brightness configurable and add support for
LAPQC71A/B"
* tag 'platform-drivers-x86-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (152 commits)
platform/x86: think-lmi: Fix current password length check
platform/x86: redmi-wmi: report EC state change events
MAINTAINERS: update Intel PMC Core maintainer contact
platform/x86: oxpec: Add support for OneXPlayer X2 Mini Pro
platform/x86: thinkpad_acpi: Fix fan speed reporting on Edge E330
platform/x86: msi-ec: Add MSI Katana GF76 11UEK EC firmware
platform/x86: think-lmi: Fix certificate thumbprint sysfs output
mlxbf-bootctl: fix the build error with FIELD_PREP()
platform/x86: think-lmi: Free system certificate signatures
platform/x86: ISST: Add a NULL check for sst_inst[]
platform/x86: ISST: Return error during profile addition
platform/x86: ISST: Just allow 2 bits for SST feature enable
platform/x86: ISST: Use PP level enable mask
platform/x86: ISST: Validate parameter for frequency and priority
platform/x86: ISST: Validate parameter for core power state
platform/x86: ISST: Validate max level for set feature
platform/x86: ISST: Validate logical CPU id and clos id
platform/x86: ISST: Validate level in perf mask ioctls
platform/x86: ISST: Validate socket ID in clos_assoc ioctl
platform/x86/amd/hsmp: Reject negative power cap writes in hwmon
...
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For L2CAP sockets without owning sk->sk_socket, reading
l2cap_pi(sk)->chan may race against concurrent l2cap_sock_kill() ->
l2cap_sock_put_chan(). This excludes simultaneous proto_ops callbacks,
but access in l2cap_sock_cleanup_listen() has unsafe lockless read.
[Task 1] [Task 2 (hdev->workqueue)]
l2cap_sock_release(parent) l2cap_disconn_cfm
l2cap_sock_cleanup_listen l2cap_conn_del
bt_accept_dequeue l2cap_chan_del
lock_sock(sk) l2cap_sock_teardown_cb
bt_accept_unlink
bt_sk(sk)->parent = NULL
release_sock(sk) ----------------> lock_sock(sk)
parent = /* NULL */
lock_sock(sk) <--------------------- release_sock(sk)
sock_set_flag(sk, SOCK_ZAPPED)
l2cap_sock_close_cb
l2cap_sock_kill(sk)
l2cap_sock_put_chan
chan = READ l2cap_pi(sk)->chan l2cap_pi(sk)->chan = NULL
l2cap_chan_hold_unless_zero l2cap_put_chan(chan)
kref_get_unless_zero(&chan->ref)
Task 1 may observe NULL which causes null-ptr-deref.
Fix the race by taking lock_sock() in l2cap_sock_kill() to
synchronize with l2cap_sock_cleanup_listen(). hold_unless_zero() is not
needed here, l2cap_pi(sk)->chan owns reference if it is non-NULL.
Clarify code comments vs. locking.
Fixes: 6fef032af009 ("Bluetooth: L2CAP: Fix use-after-free in l2cap_sock_new_connection_cb()")
Reported-by: syzbot+e6382a2f53f5fc7453ac@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=e6382a2f53f5fc7453ac
Signed-off-by: Pauli Virtanen <pav@iki.fi>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
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'uuid_count' member of struct 'discovery_state' is assigned and read
without any locks, so there is a chance of situation when
uuid_count != 0, but uuids is NULL and there will be NULL pointer
dereference.
Possible race:
'hci_update_passive_scan_sync'
'hci_discovery_filter_clear'
hdev->discovery.uuid_count = 0;
<----------------------preempted----------------------------->
'start_service_discovery'
// Set uuid_count to value != 0
hdev->discovery.uuid_count = uuid_count;
hdev->discovery.uuids = kmemdup(...);
<----------------------preempted----------------------------->
spin_lock(&hdev->discovery.lock);
kfree(hdev->discovery.uuids);
hdev->discovery.uuids = NULL;
spin_unlock(&hdev->discovery.lock);
Now uuids == NULL and uuid_count != 0.
So 'mgmt_device_found' -> 'is_filter_match' -> 'eir_has_uuids' receives
non consistent discovery state, where NULL dereference of uuids happens.
To fix it let's add discovery.lock around every read/write of uuid_count,
uuids pair of struct members. It is also important to assign uuid_count
value only after success kmemdup() allocation in
start_service_discovery(), otherwise uuids is NULL, because kmemdup failed,
but uuid_count is already assigned to non zero value.
The following panic happens:
[ ] ------------[ cut here ]------------
[ ] Unable to handle kernel NULL pointer dereference at virtual
address 0000000000000000
[ ] Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
[ ] CPU: 0 PID: 15056 Comm: kworker/u9:2
[ ] Workqueue: hci0 hci_rx_work
[ ] pstate: 10400009 (nzcV daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[ ] pc : eir_has_uuids+0x2d8/0x590
[ ] lr : is_filter_match+0x258/0x320
...
[ ] Call trace:
[ ] eir_has_uuids+0x2d8/0x590
[ ] is_filter_match+0x258/0x320
[ ] mgmt_device_found+0x5b0/0xafc
[ ] process_adv_report.part.0+0x8c8/0xf14
[ ] hci_le_adv_report_evt+0x338/0x3f0
[ ] hci_le_meta_evt+0x1f0/0x4c8
[ ] hci_event_packet+0x440/0xc9c
[ ] hci_rx_work+0x44c/0xaf8
[ ] process_one_work+0x54c/0x103c
[ ] worker_thread+0x6c4/0x10c4
[ ] kthread+0x274/0x2ec
[ ] ret_from_fork+0x10/0x20
[ ] Code: 14000004 91004021 eb14003f 54000180 (f9400024)
[ ] ---[ end trace 0000000000000000 ]---
Fixes: 2935e556850e ("Bluetooth: hci_sync: fix double free in 'hci_discovery_filter_clear()'")
Signed-off-by: Pavel Shpakovskiy <pashpakovskii@salutedevices.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
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https://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 changes for 7.3
- Add support for 'slot' based PMU events, paired with new UAPI that
compels the user to select a specific PMU implementation
- Lazy save/restore of vCPU state for pKVM, along with various fixes
and cleanups to the management of vCPU state between the untrusted
host and pKVM hypervisor
- Disable traps of EL1 registers for nested hypervisors when FEAT_NV2p1
is present, guaranteeing that EL2-specific register bits are stateful
in the EL1 counterpart
- Leverage FEAT_NV3 to avoid unnecessary ERET/TLBI traps when the scope
of those instructions remains 'in host' (i.e. L1 kernel/userspace)
- Pile of fixes for the management of the VNCR pseudo-TLB, such as
under-invalidations and races with concurrent TLBIs on other vCPUs
- Consolidate the non-protected and pKVM view of ICH_VTR_EL2 to a
runtime-patched constant, allowing the same data to be shared with
pKVM prior to dropping host privileges
- Considerable pile of LLM-assisted fixes around the shop but mostly in
the VGIC, our in-kernel generator of bugs (and sometimes interrupts)
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Merge series "mm/slab: introduce kfree_rcu_nolock() and improve
slub_kunit coverage" from Harry Yoo. From the cover letter [1]:
This series improves kmalloc_nolock() and kfree_nolock() coverage in
slub_kunit and introduces kfree_rcu_nolock() for unknown context as
suggested by Alexei Starovoitov.
Unknown context means the caller does not know whether spinning on a
lock is safe (e.g., a BPF program attached to an arbitrary kernel
function or in NMI context).
The slab allocator already supports unknown context via kmalloc_nolock()
and kfree_nolock(), but te slab allocator does not support freeing
objects by RCU in unknown context.
It is not ideal to have completely separate batching for unknown context
because the worst scenario where spinning on a lock would lead to
deadlock is very rare, and in most cases, it is safe to use the existing
mechanism (kfree_rcu_sheaf()).
Since most part of the slab allocator already supports unknown context
and sheaves support batching kvfree_rcu() calls for slab objects,
implement kfree_rcu_nolock() with minimal changes by teaching
kfree_rcu_sheaf() how to support unknown context and making it a little
bit harder to allocate an empty sheaf, instead of making intrusive
changes to the existing kvfree_rcu batching logic.
kfree_rcu_nolock() tries to free the object to the rcu sheaf if trylock
succeeds. Once the rcu sheaf becomes full, it is submitted to RCU via
call_rcu() if spinning is allowed or IRQs are enabled (to avoid calling
call_rcu() in the middle of call_rcu()). Otherwise, call_rcu() is
deferred via irq work.
When there is no sheaf available, kfree_rcu_sheaf() falls back to
defer_kfree_rcu(). It submits the object to kvfree_rcu batching via irq
work. To do this, patch 6 converts kvfree_rcu to use kvfree_rcu_head
without visible changes to the API for now.
Unlike kfree_rcu(), only the 2-argument variant is supported. This is
because the last resort of the 1-arg variant is synchronize_rcu(), which
cannot be used in an unknown context.
As suggested by Alexei Starovoitov, kfree_rcu_nolock() can be used with
struct kvfree_rcu_head (8 bytes), which is smaller than struct rcu_head
(16 bytes).
Link: https://lore.kernel.org/all/20260729-kfree_rcu_nolock-v5-0-a28cdcda9673@kernel.org/ [1]
|
|
DMA_HEAP_IOCTL_ALLOC allocates a dma-buf and installs an fd into the
caller's fd table via dma_buf_fd() -> fd_install() before
dma_heap_ioctl() copies the result back to userspace. If the trailing
copy_to_user() fails, userspace never learns the fd number, but the
fd (and the underlying dma-buf reference) are already visible to
other threads in the same process and are leaked for the lifetime of
the process.
The obvious "close it on the failure path" fix is unsafe: once
fd_install() has run, another thread can already dup() the fd, send
it via SCM_RIGHTS, or close() it and let its number be reused, so a
subsequent close_fd() from the ioctl path can operate on an unrelated
file. This was pointed out by Christian König on v1 [1].
Restructure the allocation path so that fd_install() is the last,
unfailable step of a successful ioctl:
1. heap->ops->allocate() creates the dma_buf.
2. get_unused_fd_flags() reserves an fd number in the caller's
fd table without publishing it, so
no other thread can observe it.
3. copy_to_user() delivers the fd number to userspace;
on failure the fd is returned with
put_unused_fd() and the dma_buf
reference is dropped with
dma_buf_put(), leaving no user-
visible state behind.
4. dma_buf_fd_install() publishes the fd and emits the
trace_dma_buf_fd tracepoint -- from
here on the ioctl cannot fail.
A new dma_buf_fd_install() helper is introduced in dma-buf.c to wrap
fd_install() together with the DMA_BUF_TRACE() call, preserving the
export tracing that dma_buf_fd() provides. dma_heap_ioctl_allocate()
is refactored to return the struct dma_buf * directly (returning
ERR_PTR on failure) so the caller holds the dmabuf reference across
steps 3 and 4.
The failure at step 3 is easily reachable from userspace: pass a
struct dma_heap_allocation_data that lives in a page whose protection
is flipped to PROT_READ between copy_from_user() and copy_to_user()
(e.g. via mprotect()). Before this change each such ioctl leaks one
dmabuf fd; after it, the fd table is unchanged on failure and only
/dev/dma_heap/<name> remains open.
No UAPI or heap-driver interface change.
[1] https://lore.kernel.org/dri-devel/175e98de-f414-47d7-81c1-c0fe0a8f7f62@amd.com/
Fixes: c02a81fba74f ("dma-buf: Add dma-buf heaps framework")
Cc: stable@vger.kernel.org
Reviewed-by: T.J. Mercier <tjmercier@google.com>
Acked-by: Christian König <christian.koenig@amd.com>
Acked-by: Sumit Semwal <sumit.semwal@linaro.org>
Signed-off-by: Baineng Shou <shoubaineng@gmail.com>
Link: https://lore.kernel.org/r/20260817050457.1005285-2-shoubaineng@gmail.com
Signed-off-by: Christian König <christian.koenig@amd.com>
|
|
Revert commit 1b0866874833 ("locking: Switch to _irq_{disable,enable}()
variants in cleanup guards").
While the guards are properly nested, not all wrapped code is nice, as already
highlighted by that fair.c hunk.
Syzbot found another instance of this pattern in posix_timer_delete(), which
does spin_unlock_irq()+spin_lock_irq() inside scoped_guard(spinlock_irq).
Combined with this patch, that goes sideways most spectacular.
Undo this until we've developed stronger tools / debug for such issues.
Fixes: 1b0866874833 ("locking: Switch to _irq_{disable,enable}() variants in cleanup guards")
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/20260824105523.GA4121620%40noisy.programming.kicks-ass.net
|
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Fix IWYU issues:
/tmp/next/build/include/linux/io_uring_types.h:56:32: error: 'ITER_DEST'
undeclared here (not in a function)
56 | IO_BUF_DEST = 1 << ITER_DEST,
| ^~~~~~~~~
/tmp/next/build/include/linux/io_uring_types.h:57:32: error: 'ITER_SOURCE'
undeclared here (not in a function)
57 | IO_BUF_SOURCE = 1 << ITER_SOURCE,
| ^~~~~~~~~~~
Fixes: 95961b72c57b2 ("io_uring/rsrc: rename and export IO_IMU_DEST / IO_IMU_SOURCE")
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
|
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Add a drm_warn_ratelimited() macro to complement the existing
drm_err_ratelimited(), providing rate-limited logging at warning level
for drivers that need it.
Signed-off-by: Dawid Osuchowski <dawid.osuchowski@linux.intel.com>
Reviewed-by: Karol Wachowski <karol.wachowski@linux.intel.com>
Signed-off-by: Karol Wachowski <karol.wachowski@linux.intel.com>
Link: https://patch.msgid.link/20260820104811.803146-2-dawid.osuchowski@linux.intel.com
|
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https://gitlab.freedesktop.org/drm/msm into drm-next
Changes for v7.3
Bindings:
- Added Shikra support
- Document a840, a704, a722
Core:
- Use drm_client buffers for fbdev emulation
- teardown fixes
- ARM32 DMA fixup
- Remove objects from evict list when re-validated
- Bunch of corner case and error path fixes
DPU:
- Dropped dev_pm_opp_set_rate(0) preventing burnout
- Fixed SSPP offsets of Kaanapali
DP:
- Dropped dev_pm_opp_set_rate(0) preventing burnout
- Cleaned up core code in preparation for MST support
- Fixed prepare() to let Pipewire continue in case of the unplugged cable
GPU:
- Add support for a704
- Add support for a722
HDMI:
- Simplifed register access
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rob Clark <rob.clark@oss.qualcomm.com>
Link: https://patch.msgid.link/CACSVV02Kp=J+w_RjEJbBbQnBYRb+SWdwMvVbCaAL70bq9EBagQ@mail.gmail.com
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git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux
Pull RCU updates from Paul McKenney:
"Make expedited grace periods expedite normal RCU callbacks
Miscellaneous fixes:
- Improve diagnostic output with character task states
- Mark accesses to inform KCSAN of concurrency design
- Move from kmalloc() to kmalloc_obj()
- Documentation updates
- Improve handling of RCU deferred quiescent states
- Clean up unused function arguments and structure fields
- Reduce show_rcu_gp_kthreads() stack space
Tasks RCU updates:
- Clean up after SRCU re-implementation of Tasks Trace RCU
- Mark accesses to inform KCSAN of concurrency design
- Add ->lazy_timer status to diagnostic output
- Remove an unnecessary memory barrier
- Fix a data race, courtesy of KCSAN
- Documentation updates
- Convert cond_resched_tasks_rcu_qs() from macro to static inline
function
SRCU updates:
- Add Rust helpers for SRCU
- Avoid losing queued work at cleanup_srcu_struct() time
Torture-test updates:
- Preparation work for immediate RCU priority deboosting
- Test RCU readers from real interrupt handlers (as opposed to
softirq)
- Simplify code through use of cpumask_next_wrap()
- Improve diagnostic output with character task states
- Add rcutorture.nwriters parameter to allow lightweight stall
testing, and rcutorture.stall_only to make doing so easier
- Test an RCU Tasks Trace grace period implying an RCU grace period
- Make RCU Tasks Trace torturing track reader batches
- Fix a data race, courtesy of KCSAN
- Plug a shuffle_tmp_mask memory leak on kthread spawn failure"
* tag 'rcu.2026.08.18a' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux: (59 commits)
rcu: Add closing parenthesis in comment in rcu_read_unlock_strict()
rcutorture: Make {,s}rcu_read_delay() better handle forward-progress testing
rcutorture: Announce declining to forward-progress test
torture: Don't leak shuffle_tmp_mask when shuffler kthread fails to start
rcutorture: Use this_cpu_inc() for rcu_torture_count[] and rcu_torture_batch[]
rcutorture: Make RCU Tasks Trace track Reader Batches
rcutorture: Test RCU Tasks Trace GP implying RCU GP
rcutorture: Add a stall_only module parameter
rcutorture: Add nwriters module parameter
rcutorture: Use task_state_to_char() for task-state reporting
rcutorture: Use cpumask_next_wrap() in rcu_torture_preempt()
rcutorture: Test RCU readers from hardware interrupt handlers
rcutorture: Check for immediate deboosting at reader end
srcu: Queue sdp->work when the delay timer is successfully deleted
rcu-tasks: Convert cond_resched_tasks_rcu_qs() to static inline
rcu-tasks: Fix some comments for call_rcu_tasks() and call_rcu_tasks_rude()
rcu-tasks: Rename tasks_rcu_exit_srcu_stall_timer to tasks_rcu_exit_stall_timer
rcu: Mark interrupts-enabled accesses to rdp->cpu_no_qs.s
rcu: Reduce stack usage in show_rcu_gp_kthreads()
rcu: Mark accesses to ->rcu_urgent_qs and ->rcu_need_heavy_qs
...
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In Hyper-V versions prior to WS2016/Win10, Hyper-V synthetic timers
interrupt the guest by delivering a message that is initially handled
by the Linux VMBus driver. Starting with WS2016/Win10, Hyper-V can
deliver stimer interrupts directly to an assigned interrupt vector
without involving the VMBus driver. This is called "Direct Mode".
With the overall removal of Linux support for running on Hyper-V
hosts earlier than WS2016 and Windows 10, it's no longer necessary
to support the legacy message-based delivery. Remove that delivery
mechanism and always use Direct Mode. If for some reason, the
Hyper-V host does not enumerate Direct Mode, output an error
message but continue to run using the LAPIC timer instead of an
stimer.
With these changes, the VMBus driver no longer calls the stimer
interrupt service routine. This removal has a broader benefit in
unblocking the disentangling of VMBus code and stimer code, as
they should be independent of each other. The final disentangling
will come as a follow-on patch set.
Signed-off-by: Michael Kelley <mhklinux@outlook.com>
Signed-off-by: Wei Liu <wei.liu@kernel.org>
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Linux code for running as a Hyper-V guest includes special cases for
running on Hyper-V in WS2012/2012R2 and Windows 8/8.1. These versions
were initially released 14 years ago, and official support ended in 2023
(unless a customer has contracted for extended security updates). Given
the release of subsequent versions with improved functionality, there's
no need to continue to support the latest Linux kernels on these versions
of Hyper-V. If someone is running Linux on one of these older Hyper-V
versions and doesn't want to upgrade, they can continue to do so as
presumably they don't want upgrade the Linux version either.
Simplify Linux code by removing special cases for running on these
old versions of Hyper-V. Remove the negotiation of the VMBus protocol
versions for WS2012/Win8, and remove special case code based on those
VMBus protocol versions. Also update the balloon and snapshot drivers
to no longer negotiate driver-specific protocol versions for these
older Hyper-V versions, and remove any related special cases.
Signed-off-by: Michael Kelley <mhklinux@outlook.com>
Signed-off-by: Wei Liu <wei.liu@kernel.org>
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On CoCo VMs without confidential VMBus, the netvsc send and receive buffers
must be made host-visible by decrypting them. These buffers are vmalloc'ed,
but set_memory_decrypted()/encrypted() do not work on vmalloc'ed memory.
This use case is (so far) unique to netvsc, so solve it locally rather than
changing the set_memory() or allocation APIs.
Add vmbus_alloc_buffer()/vmbus_free_buffer() to the VMBus core. When the
guest's isolation model requires it, allocate the buffer as a list of
physically-contiguous chunks via alloc_pages_node(), starting at
MAX_PAGE_ORDER and falling back to smaller orders so the allocation still
succeeds under memory fragmentation. Each chunk is decrypted in place via
set_memory_decrypted() on its direct-map address, and the chunks are then
stitched into a single virtually-contiguous range with vmap(). Buffers that
do not need decryption keep using vzalloc().
To free the buffer, vmbus_free_buffer() calls vunmap() on the range then
re-encrypts and frees each chunk individually; any chunk that fails
re-encryption is leaked to prevent accidentally freeing decrypted memory.
This approach minimizes scattering of decrypted 4 KiB pages through the
kernel direct map and the resulting shattering of large page mappings.
Signed-off-by: Kameron Carr <kameroncarr@linux.microsoft.com>
Reviewed-by: Michael Kelley <mhklinux@outlook.com>
Signed-off-by: Wei Liu <wei.liu@kernel.org>
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Add a new vmbus_establish_gpadl_caller_decrypted() for callers that want to
decrypt their own buffers. Add a new hv_gpadl_type,
HV_GPADL_BUFFER_DECRYPTED, to communicate the decryption status of the
buffer.
No functional change for existing callers.
Signed-off-by: Kameron Carr <kameroncarr@linux.microsoft.com>
Reviewed-by: Michael Kelley <mhklinux@outlook.com>
Signed-off-by: Wei Liu <wei.liu@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux
Pull I3C updates from Alexandre Belloni:
"A new driver this cycle, for the AMD AXI I3C controller.
There are also new features such as IBI wakeup support, SETAASA device
discovery and ACPI support for the the DAA methods, meaning we can now
communicate with the SPD devices on DDR5 modules.
New driver:
- AMD AXI I3C master controller
Subsystem:
- I3C Common Command Code (CCC) handling improvements, especially
around GET CCCs
- SETAASA device discovery support
- ACPI support for all existing DAA methods like SETDASA, SETNEWDA as
well as I2C devices on I3C bus
- IBI-based wakeup support
Drivers:
- dw: SETAASA support
- mipi-i3c-hci: advertise IBI wakeup capability, AMD_PT I3C
controller support, PIO queue management support for HCI v1.2
- renesas: improve suspend to RAM support, add runtime PM support"
* tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: (70 commits)
i3c: dw: reduce do_daa time if there's no client
i3c: mipi-i3c-hci: Add support for AMD_PT I3C controller
i3c: mipi-i3c-hci: Add PIO queue management support for HCI v1.2
i3c: mipi-i3c-hci: Fix missing STAT_IBI_STATUS_THLD in PIO mode
i3c: dw: rename "pclk" to "apb" to match dt-binding
i3c: dw: make struct dw_i3c_cmd smaller
i3c: dw: use COMMAND_PORT_TRANSFER_ARG instead of hardcoding
i3c: renesas: Don't register devices when ENTDAA times out
i3c: master: dw-i3c-master: fix OD timing for first broadcast
i3c: mipi-i3c-hci: Advertise IBI wakeup capability
i3c: mipi-i3c-hci: Factor out i3c_hci_sysdev()
i3c: mipi-i3c-hci-pci: Propagate I3C wakeup requirements to PCI
i3c: master: Reject IBI requests from non-IBI-capable devices
i3c: master: Add helper to query bus wakeup requirements
i3c: master: Report wakeup events for IBIs
i3c: master: Support IBI-based wakeup capability
i3c: master: Fix potential UAF in i3c_device_match()
i3c: master: Fix potential UAF in i3c_device_uevent()
i3c: Make dev->desc locking assumptions explicit
i3c: master: Fix use-after-free of master->this
...
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git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull PCI updates from Bjorn Helgaas:
"Resource management:
- Add hotplug reservation only once (not at each level of the
hierarchy) so bridge windows don't grow more than necessary (Ilpo
Järvinen)
Driver binding:
- Rework device matching so device ID lifetime only needs to cover
the probe path since dynamic IDs can be removed at any time (Gary
Guo)
Error handling:
- Update mappings of AER errors to agent & layer and log them for
each individual error when multiple errors detected (Lukas Wunner)
- Log Error Source only once, not twice in separate messages (Lukas
Wunner)
- Emit TLP Log only for unmasked errors (Lukas Wunner)
- Support Advisory Non-Fatal Errors (Lukas Wunner)
- Allow DPC on all Downstream Ports, not just Root Ports, when OS
controls AER (Darshit Shah)
ASPM:
- Program the same ASPM Control values for every function of
multi-function devices, as recommended by the PCIe spec (Krishna
Chaitanya Chundru)
- Avoid L0s for Realtek RTS525A, where it causes an AER interrupt
storm (Max Lee)
- Avoid ASPM L0s, L1, and L1 PM Substates based on 'aspm-no-l0s',
'aspm-no-l1' [1], and 'aspm-no-l1ss' DT properties (Krishna
Chaitanya Chundru)
Power management:
- Allow D3 for native hotplug-capable Root Ports on non-x86 platforms
(we avoid D3 for these ports on x86 because some old platforms
didn't validate it) (Manivannan Sadhasivam)
- Allow portdrv to claim Ports even if they don't support services
(AER, PME, DPC, hotplug, etc) so it can do power management (Brian
Norris)
Power control:
- Add support for PCIe WAKE# interrupt when described via DT (Krishna
Chaitanya Chundru)
- For the TC9563 PCIe switch:
- Take a reference on the I2C adapter to avoid uninterruptible
hang when unloading an I2C module while in-use (Johan Hovold)
- Update DT binding and driver to restrict Tx Amplitude, DFE and
N_FTS to USP, DSP1 and DSP2 (Manivannan Sadhasivam)
- Power off only external-facing ports (DSP1, DSP2), leaving USP
and DSP3 (aka VDSP) powered up (Manivannan Sadhasivam)
- Move integrated MAC Endpoint out of the list of internal ports
and configure it separately (Manivannan Sadhasivam)
Virtualization:
- Add ACS quirk for Pericom PI7C9X2G608 switches (Tim Harvey)
- Fix a long-standing bug in the Intel PCH Root Port MPC ACS quirk
that didn't update the intended INTEL_MPC_REG_IRBNCE bit because it
used a 16-bit config write when a 32-bit write was intended
(Mohamad Raizudeen)
Procfs:
- Avoid spurious runtime PM wakeup on config space accesses that are
outside config space and fail before reaching PCI (Krzysztof
Wilczyński)
- Warn on user-space writes to kernel-exclusive config space regions,
as we already do for sysfs (Krzysztof Wilczyński)
- Check credentials of opener, not reader, for config space reads, as
we already do for sysfs (Krzysztof Wilczyński)
Sysfs:
- In pci_write_legacy_io(), avoid out-of-bounds reads from the user
buffer and fix incorrect ioport write data (1-byte writes on
little-endian powerpc, 2- and 4-byte writes on big-endian powerpc)
(Krzysztof Wilczyński)
- In pci_read_legacy_io(), fix incorrect ioport read data for 2- and
4-byte reads on big-endian powerpc (Krzysztof Wilczyński)
- Fix I/O port accessor argument order in Alpha pci_legacy_write()
(Krzysztof Wilczyński)
- Avoid spurious runtime PM wakeup on config space accesses that are
outside config space and fail before reaching PCI (Krzysztof
Wilczyński)
- Return -EINVAL, not -ENODEV, for mmap of I/O BAR that fails because
the arch doesn't support it, as we do for procfs (Krzysztof
Wilczyński)
- Check for LOCKDOWN_PCI_ACCESS for legacy_io and legacy_mem, as we
do for other config space accessors (Krzysztof Wilczyński)
Peer-to-peer DMA:
- Add Nvidia Vera Rubin to list of platforms that support P2PDMA
(Leon Romanovsky)
Endpoint framework:
- Check doorbell SUCCESS bit in pci_endpoint_test to avoid treating
some failures as successes (Niklas Cassel)
- Fail doorbell test when the trigger IRQ is missed (Niklas Cassel)
New native PCIe controller drivers:
- Add DT binding and driver for NVIDIA Tegra264 (Thierry Reding)
Native PCIe controllers:
- Use common wait time definitions for PCIe link monitoring instead
of defining driver-private duplicates (Thierry Reding)
Generic host bridge driver:
- Fix NULL pointer dereference that caused enumeration failures on
32-bit CAM systems (Steffen Persvold)
Amlogic Meson PCIe controller driver:
- Correct the PERST# GPIO state so it remains asserted until power
and REFCLK become stable to fix enumeration failure (Ronald
Claveau)
ASPEED PCIe controller driver:
- Switch to irq_domain_create_linear() so we can obsolete
irq_domain_add_linear() (Jiri Slaby)
Cadence PCIe controller driver:
- Add MODULE_DEVICE_TABLE to generate module aliases for OF-based
module autoloading (Pengpeng Hou)
- Add debugfs 'ltssm_status' file for LGA- and HPA-based Cadence
controllers (Hans Zhang)
- Support up to x4 (not x2) lanes for J200 (Takuma Fujiwara)
- Fix host/endpoint dependencies for cadence-plat driver to fix link
error when cadence-plat is built-in but the host or endpoint driver
is modular (Aksh Garg)
Freescale i.MX6 PCIe controller driver:
- Add imx6 intr/aer/pme interrupt lines for i.MX95 (Richard Zhu)
- Remove PERST# checking from pci_host_common_parse_port() so callers
can decide whether to fall back to legacy DT binding with PERST# in
the host bridge (Sherry Sun)
- Fix build issues when PCI_PWRCTRL_GENERIC or PCI_HOST_COMMON is a
module (Arnd Bergmann)
- Create pwrctrl devices only once by doing it from imx_pcie_probe()
instead of imx_pcie_host_init(), which is used during both probe
and resume (Sherry Sun)
- Use 'dw_pcie_rp->skip_pwrctrl_off' to avoid powering off devices
during suspend to preserve wakeup capability (Sherry Sun)
- Add runtime PM support for i.MX95 to allow dynamic power management
when the link is idle (Richard Zhu)
Intel VMD host bridge driver:
- Support device ID 0x28C1 and assume that BIOS has already
enumerated the hierarchy below VMD and stored bus range info for OS
to use (Nirmal Patel)
- Add support for VMCONFIG BUS_RESTRICT_CFG=3, which makes it
possible to enumerate downstream devices on Intel Arrow Lake-HX
systems and probably others (Ali Alaei)
- Pay attention to _OSC negotiation for VMD hierarchy only when
running on bare metal, not when running in a VM (Nirmal Patel)
- Add Nova Lake (NVL) and Dunlow (DNL) Device IDs (Szymon Durawa)
MediaTek PCIe controller driver:
- Add support for PCIe controller in EcoNet EN7528 and EN751221 SoCs
(Caleb James DeLisle)
MediaTek PCIe Gen3 controller driver:
- Add mediatek-gen3 'memory-region' for restricted DMA buffer
(Chen-Yu Tsai)
NVIDIA Tegra264 PCIe controller driver:
- Distinguish Tegra264 C0 PCIe controller for internal GPU from C1-C5
controllers so the unit address matches the first 'reg' entry
(Thierry Reding)
- Add Tegra264 Root Port stanzas to prepare for generic WAKE#
handling (Thierry Reding)
Qualcomm PCIe controller driver:
- Add IPQ9650 compatible with global interrupt (Kathiravan
Thirumoorthy)
- Add IPQ5210 compatible with IPQ9574 fallback (Varadarajan
Narayanan)
- Add DT binding and driver support for Hawi SoC (Matthew Leung)
- Skip PERST# GPIOs provided by downstream PCIe devices, which should
be handled by drivers of those devices (Manivannan Sadhasivam)
- Stop advertising Attention Button Present (no Qcom SoCs support
Attention Buttons) so pciehp can use Presence Detect Changed events
(Qiang Yu)
Renesas R-Car PCIe controller driver:
- Add rcar-gen4-pci-host optional 'msi-parent' for GIT ITS (Marek
Vasut)
- When MSI is enabled but iMSI-RX is not used, configure AXIINTC to
allow GIT ITS to handle MSI (Marek Vasut)
- Refactor GIC600 implementation to make it easier to add platforms
that only support 32-bit addressing (Marek Vasut)
- Add Renesas R-Car Gen4 S4/V4H/V4M to the list of GIC600
integrations that only support 32-bit addressing (Marek Vasut)
Renesas RZ/G3S PCIe controller driver:
- Add DT binding and driver support for RZ/V2H(P) SoC, which contains
two PCIe controllers, configured either as a single x4 link or two
independent x2 link controllers (Lad Prabhakar)
SpacemiT K1 PCIe controller driver:
- Add missing MODULE_DEVICE_TABLE() to generate module alias info for
OF-based module autoloading (Pengpeng Hou)
StarFive PCIe controller driver:
- Fix resource leaks on error paths in host_init() (Ali Tariq)
- Fix runtime PM handling and teardown ordering to avoid register
access while power or clocks are disabled (Ali Tariq)
- Check for runtime PM resume failure to avoid register access while
power or clocks are disabled (Ali Tariq)
Synopsys DesignWare PCIe controller driver:
- Add LECARC PMU IDs to the DWC RAS/DES VSEC list so it can take
advantage of the existing debugfs support for silicon debug, error
injection, and event counters (Brett Zhou)
- Factor pcie_valid_speed() and pci_bus_speed2lnkctl2() out of bwctrl
so they can be shared by the DWC core (Hans Zhang)
- Flush MSI writes from endpoint before unmapping the iATU, as we
already do for MSI-X writes (Niklas Cassel)
- Unmap MSI iATU window before mapping MSI-X window, to avoid a
subsequent MSI write using a disabled aperture and losing the
interrupt (Niklas Cassel)
- Change endpoint .pre_init() and .init() callbacks to return errors
and handle them (Marek Vasut)
UltraRISC PCIe controller driver:
- Add 'core', 'dbi', and 'aux' clocks to DT binding and manage them
in the driver (Jia Wang)
- Use module_platform_driver() since this may be built as a module,
though not removable because IRQs can't be safely disposed (Jia
Wang)
MicroSemi Switchtec management driver:
- Add Microchip PCI1008 device ID and include it in NTB DMA alias
quirk (Logan Gunthorpe)
Miscellaneous:
- Document how to write PCI Host Controller drivers (Manivannan
Sadhasivam)
- Fix typos in documentation (D'Orus Tsitera)
- Use %pe format specifier to print error pointers so we get symbolic
errname when available (Krzysztof Wilczyński)"
* tag 'pci-v7.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (124 commits)
PCI: vmd: Add Nova Lake (NVL) and Dunlow (DNL) Device IDs
PCI: tegra264: Add Tegra264 support
dt-bindings: PCI: tegra264: Switch to PCIe Root Port bindings
dt-bindings: PCI: tegra264: Strictly distinguish C0 from C1-C5
PCI/AER: Support Advisory Non-Fatal Errors
PCI: Fix 32-bit config write in Intel PCH Root Port MPC ACS quirk
PCI: dwc: Handle return value from endpoint .pre_init callback
PCI: dwc: Handle return value from endpoint .init callback
PCI: dwc: Add PCI ID for LECARC PCIe PMU
PCI/ASPM: Mask ASPM states based on Devicetree properties
PCI/ASPM: Disable/restore ASPM on every function for multi-function devices
Documentation: PCI: Document how to write PCI Host Controller drivers
PCI/ASPM: Use pcie_capability_clear_and_set_word() for ASPM disable/restore
PCI: Add support for PCIe WAKE# interrupt
PCI: Allow D3 for native hotplug-capable Root Ports on non-x86 platforms
dt-bindings: PCI: Correct white-space style
PCI/ASPM: Avoid L0s for Realtek RTS525A
PCI: ultrarisc: Use module_platform_driver()
PCI: ultrarisc: Get and enable DP1000 PCIe controller clocks
dt-bindings: PCI: ultrarisc: Add required DP1000 PCIe clocks
...
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syzbot reported KCSAN write-write races when two tasks concurrently
update the same map value. Both accesses reach the ordinary memcpy()
paths in bpf_obj_memcpy() through copy_map_value().
Unlocked in-place updates of published map values are intentionally not
serialized and may produce torn values. Callers requiring consistency
must provide synchronization appropriate for the map type.
bpf_long_memcpy() already annotates the same behavior for long-aligned
copies.
Annotate the ordinary memcpy() sites in bpf_obj_memcpy() with
data_race(), matching bpf_long_memcpy(). This documents the existing
concurrency semantics and suppresses KCSAN reports for these intentional
races without changing synchronization or map update behavior.
Reported-by: syzbot+44044637ef892e79ca2b@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=44044637ef892e79ca2b
Signed-off-by: Quanye Yang <quanyeyang@proton.me>
Link: https://lore.kernel.org/bpf/20260822-bpf-kcsan-obj-memcpy-v3-1-4227b2edd8b4@proton.me
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc architecture updates from Helge Deller:
- Drop PER_HPUX personality from UAPI headers
- Infinite loop fix when parsing IRQ value in eisa code
- Switch to use asm-generic/serial.h
- Prevent possible unaligned asm code in head.S
* tag 'parisc-for-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: eisa: Fix infinite loop when parsing invalid IRQ value
parisc: Fix alignment of asm statements in head.S
parisc: eisa_eeprom: Add missing MODULE_DESCRIPTION()
parisc: Use asm-generic/serial.h
parisc: sba_iommu: Remove dead DEBUG_DMB_TRAP code
UAPI: Drop PER_HPUX personality
parisc: superio: Spelling s/Peterson/Petersen/
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Vasily Gorbik:
- Add a cpuidle driver with polling and enabled wait states using the
existing CPU idle infrastructure and idle governor to improve latency
for frequent sleep/wakeup cycles. Remove the obsolete tick delay
heuristic and generic arch_needs_cpu() hook. Add the corresponding
driver entry to MAINTAINERS
- Add kCFI support using the generic support provided by Clang
- Enable Clang CONTEXT_ANALYSIS for various architecture code and for
char, PCI, CIO and virtio drivers. Add required lock annotations,
exclude unsupported mm helpers and remove conditional PCI locking
- Fix secure storage access exception handling and reintroduce
DCACHE_WORD_ACCESS previously removed as a workaround
- Fix cpum_cf perf crashes when CPUs are brought online while per-task
events are active. Allocate and remove per-CPU counter data from CPU
hotplug callbacks
- Fix a deadlock when an s390dbf debug area is unregistered while one
of its debugfs files is being written to
- Fix MVIY_PERCPU() with binutils older than 2.39, where an assembler
macro silently omitted an instruction needed to repair interrupted
operations after CPU migration
- Remove/replace cond_resched() calls which are no-ops with the
supported s390 preemption models
- Fix AP queue depth and maximum message length decoding according to
the architecture. Current hardware is not affected, but future
hardware could report values which were handled incorrectly
- Reflect the configured CPU state in cpu_enabled_mask so deconfigured
CPUs are not presented as available for onlining
- Restore the vDSO GNU_EH_FRAME program header which was lost when the
build switched to direct linker invocation, and mark it read-only
- Add SCLP action qualifiers used by Spyre for card initialization,
recoverable error and telemetry reporting
- Move KMSAN interrupt flag helpers out of line to fix
-Wstatic-in-inline build warnings
- Use level-specific page table entry accessors for hugetlb entries and
ptep_get() when accessing crashed kernel memory in kdump
- Make forced AP bus rescans killable so that a user process blocked
behind an ongoing scan can still be terminated with SIGKILL
- Rework pkey ioctl error paths to remove duplicated cleanup code and
avoid freeing error pointers
- Allow the protected guest SWIOTLB buffer to be allocated outside the
first 2GB. Also enable dynamic SWIOTLB growth and the coherent atomic
pool fallback to improve I/O behavior when the initial pool is
exhausted
- Add program check statistics and spinlock contention tracepoints.
Increase the lockdep chain capacity to keep lockdep enabled for
complex code paths such as btrfs
- Simplify IPL, trap and syscall code and remove the obsolete
unistd_32.h generation entry
* tag 's390-7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (59 commits)
s390/percpu: Fix MVIY_PERCPU() with older binutils
s390/debug: Fix deadlock during unregister
s390/cpum_cf: Handle CPU hotplug via prepare/dead callbacks
s390: Enable CONTEXT_ANALYSIS for various directories
s390/mm: Add __context_unsafe() attribute to gmap helper functions
s390/mm: Add __context_unsafe() attribute to do_secure_storage_access()
s390/sysinfo: Add context analysis attributes
s390/irqflags: Add out-of-line definitions of arch_local_irq_*() for KMSAN
s390/virtio: Enable CONTEXT_ANALYSIS
s390/cio: Enable CONTEXT_ANALYSIS
s390/vfio_ccw: Add __must_hold() attribute to vfio_ccw_sch_quiesce()
s390/pci: Enable CONTEXT_ANALYSIS
s390/pci: Rework __zpci_event_availability() to remove conditional locking
s390/pci: Rework __zpci_event_error() to remove conditional locking
s390/char: Enable CONTEXT_ANALYSIS
s390/con3215: Add __must_hold() attribute to raw3215_make_room()
s390/ap: Fix MAPML computation
s390/cio: Remove cond_resched() calls
s390: Remove cond_resched() calls
KVM: s390: Remove cond_resched() calls
...
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git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi
Pull EFI updates from Ard Biesheuvel:
- Set a timeout for EFI runtime service completions, and declare the
firmware wedged if it is exceeded. Note that this requires special
handling in case the firmware does return after all
- Rate limit the efivarfs statfs() handler as the QueryVariableInfo()
runtime service can be costly
- Sanity check the size of struct properties_header on Mac/x86
- Tweak the prototype of efi_guid_to_str()
* tag 'efi-next-for-v7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
efivarfs: Rate limit statfs() handler
efi: apple-properties: validate setup data header length
efi: make efi_guid_to_str() take a const GUID pointer
efi/runtime-wrappers: retire the worker if a wedged call ever returns
efi/runtime-wrappers: honour EFI_RUNTIME_SERVICES in the non-blocking paths
efi/runtime-wrappers: bound the wait for EFI runtime service calls
efi/runtime-wrappers: check EFI_RUNTIME_SERVICES before using efi_rts_work
efi/runtime-wrappers: handle queue_work() failure with goto exit
efi/runtime-wrappers: factor out efi_rts_park_worker()
efi: fix stale reference to efi_recover_from_page_fault()
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git://git.kernel.org/pub/scm/linux/kernel/git/liveupdate/linux
Pull more liveupdate updates from Mike Rapoport:
"Make boot time huge page allocation work nicely with kexec handover.
Today allocation of gigantic pages in HugeTLB cannot work reliably
with kexec handover (KHO):
- HugeTLB allocates gigantic pages using memblock and autoscaling of
KHO scratch accounts for these allocations. When gigantic pages
occupy half of the memory of more, KHO fails to allocate its
scratch memory.
- After kexec handover, memblock allocations exclusively use KHO
scratch that is not supposed to contain preserved memory. This
essentially blocks preservation of HugeTLB with gigantic pages.
Extend early memory pools available for KHO kernel with areas that are
guaranteed not to contain preserved memory"
* tag 'liveupdate-v7.3-rc1-20260823' of git://git.kernel.org/pub/scm/linux/kernel/git/liveupdate/linux: (21 commits)
kho: exclude hugetlb memory from scratch size calculation
memblock: add memblock_reserved_hugetlb_size()
memblock: make HugeTLB bootmem allocation work with KHO
memblock: always include KHO headers
kho: extend scratch
mm/mm_init: don't rely on memblock to get KHO scratch migratetype
kho: initialize preserved memory map radix tree earlier
kho: initialize kho_scratch pointer earlier in boot
kho: expose kho_scratch_overlap() to kexec_handover.h
kho: add kho_radix_init_tree()
kho: allow destroying KHO radix tree
kho: allow early-boot usage of the KHO radix tree
kho: add data argument to radix walk callback
kho: add callback for table pages
kho: add a struct for radix callbacks
kho: move all memory retrieval logic to kho_mem_retrieve()
kho: store incoming radix tree in kho_in
kho: disallow wide keys in radix tree
kho: make radix max key width more obvious
kho: generalize radix tree APIs
...
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git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull mtd updates from Miquel Raynal:
"Raw NAND changes:
- Sunxi: Support added for the H616 compatible
- Qcom: Support added for the MDM9607 compatible
- Support for the Toshiba TC58NVG1S3H part
- GPMI: New debugfs entry to expose the chip geometry
- PL353: Timing updates and software ECC support have been fixed
SPI NAND changes:
- fmsh: Support added for FM25G{01,02}B chips
- HeYangTek: Support added for HYF1GQ4UDACAE
Aside from these main changes, there is a high load of misc fixes and
hardening changes, and exceptionally no SPI NOR change"
* tag 'mtd/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (30 commits)
mtd: rawnand: sunxi: fix H6/H616 controller timings
mtd: rawnand: sunxi: describe tADL and tWHR delays
mtd: rawnand: sunxi: group controller delay tables
mtd: maps: remove dead select of MTD_CFI_BE_BYTE_SWAP
mtd: rawnand: gpmi: add debugfs entry for BCH geometry
mtd: rawnand: validate ONFI extended parameter page sections
mtd: rawnand: sunxi: add H616 MBUS DMA support
mtd: spinand: fmsh: fix FM25G01B/FM25G02B Quad I/O read dummy cycles
mtd: part: reject MTDPART_OFS_RETAIN in mtd_add_partition()
mtd: mpc5121_nfc: use platform for irq and ioremap
mtd: mtdoops: free page bitmap when the backing MTD is removed
mtd: mtdswap: Avoid freeing registered blktrans device twice
mtd: afs: validate v2 image info bounds
mtd: intel-dg: Fix runtime PM error path in probe
mtd: nand-omap2: Move omap_nand_ids[] to raw nand driver
mtd: rawnand: add Toshiba TC58NVG1S3H
mtd: nand: realtek-ecc: add missing MODULE_DEVICE_TABLE()
mtd: rawnand: qcom: Add MDM9607 compatible
mtd: rawnand: qcom: Make has_onfi_read_op separate from qpic_version2
mtd: rawnand: qcom: Make "aon" clock optional
...
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull non-MM updates from Andrew Morton:
- "ocfs2/dlm: bound peer-controlled lengths in the o2dlm" (Bryam
Vargas)
Validate and bound all input lengths and count fields in the o2dlm
migration and recovery receive handlers to prevent memory corruption
and kernel panics from malformed cluster messages
- "ocfs2: validate xattr entry bounds" (Cen Zhang)
Validate OCFS2 extended attribute entry name and value bounds during
metadata reads to prevent out-of-range memory accesses during
retrieval or listing operations.
- "taskstats: fix cgroupstats invalid fd handling and add selftests"
(Yiyang Chen)
Return -EBADF when cgroupstats receives an invalid file descriptor to
prevent caller hangs and misleading success ACKs. Add a kselftest to
validate valid cgroup v1 queries and verify proper error handling
across different Netlink flag combinations.
- "misc lib/raid/ improvements v2" (Christoph Hellwig)
Improve benchmark-based algorithm selection for the XOR and RAID6
libraries, add KUnit benchmark tests, and cleanup minor
implementation details.
- "ocfs2: cluster: o2hb_region_pin() fixes" (Joseph Qi)
Fix sleeping-in-atomic, lock order inversion and error-path cleanup
bugs in o2hb_region_pin() by releasing o2hb_live_lock across sleeping
configfs_depend_item() calls and using unlocked variants from
callback context. Ensure failed pin attempts properly decrement user
counts and unpin partially initialized heartbeat regions to prevent
memory leaks and unprotected states.
- "lib/ucs2_string.c: fix out-of-bounds read in ucs2_strnlen()"
(Vincent Mailhol)
Fix an off-by-one which could cause an out-of-bounds read.
- "ocfs2: harden heartbeat teardown races" (Cen Zhang)
Fix two OCFS2 heartbeat/o2net teardown races found by KASAN.
- "taskstats: tidy up the cpumask command path" *Bradley Morgan)
make two small cleanups in kernel/taskstats.c.
- "ocfs2: validate active orphan slots during inode read" (ZhengYuan
Huang)
Validate active ordinary and append-DIO orphan slots read from OCFS2
dinodes at the metadata boundary to prevent corrupted slot indices
from causing out-of-bounds array accesses.
- "ocfs2: bound-check both readdir re-validation scans" (Zhan Xusheng)
Enforce strict boundary checks on directory entry record lengths and
offset calculations during OCFS2 directory re-scans to prevent
out-of-bounds memory reads and directory position corruption.
* tag 'mm-nonmm-stable-2026-08-22-16-57' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (95 commits)
mailmap: fix bouncing address for Taniya Das
ocfs2: bound-check dir entries in the inline-data re-validation scan
ocfs2: bound-check dir entries in the readdir re-validation scan
squashfs: avoid thundering-herd cache wakeups
prctl: fix PR_SET_MM_AUXV losing the forced AT_NULL terminator
mailmap: update email address for Linfeng Sun
lib/interval_tree: fix allocation warning messages
checkpatch: add NOKPROBE_SYMBOL to the whitelist of lines that can occur immediately after functions
Squashfs: check block offset is not negative
signal: factor out the kernel reserved si_code check
ocfs2: fix readdir position truncation on 32-bit kernels
ocfs2: fix cached cluster count after suballocator reclaim
ocfs2: fix circular locking dependency in ocfs2_init_acl()
ocfs2: validate DIO orphan slot during inode read
ocfs2: validate orphan slot during inode read
selftests/prctl: fix non-anonymous VMA mapping in set-anon-vma-name test
MAINTAINERS: add IRC and patchwork for LTP
include/linux/list.h: mark list_add and __list_add as __always_inline
tools/mm: prevent page_owner_sort from truncating input
hung_task: update DETECT_HUNG_TASK_BLOCKER Kconfig help
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
- Add missing cpus_read_lock locking to rebuild_sched_domains()
(Sebastian Andrzej Siewior)
- Fix division by zero bug in tg_cpus() that can be triggered with
empty cpusets (Jake Steinman)
* tag 'sched-urgent-2026-08-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/fair: Floor tg_cpus() at 1
sched/topology: Add a cpus_read_lock to rebuild_sched_domains()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull futex fixes from Ingo Molnar:
- Enforce that the private futex owner shares the mm when attaching
(Kyle Zeng, Thomas Gleixner)
- Fix race on the initial mm->futex.phash.ref allocation (Hyunwoo Kim)
- Fix might_sleep() warning in futex_pivot_pending() (Peter Zijlstra)
* tag 'locking-urgent-2026-08-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
futex: Fix might_sleep() warning in futex_pivot_pending()
futex: Fix race on the initial mm->futex.phash.ref allocation
futex: Clean up the redundant exit/exec functions
futex/pi: Plug private futex exec() race
futex: Sanitize and document task_struct::futex::state transitions
futex/pi: Reject cross-mm private futex owners
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irqchip driver fixes from Ingo Molnar:
- Fix potential loss of interrupt in the renesas-rzg2l irqchip driver
(Biju Das)
- Fix a series of mostly corner case & error handling bugs in the
gic-v5 irqchip driver (Lorenzo Pieralisi)
- Fix hardware probing on the ast2700-intc irqchip driver (Michael
Pesa)
- Fix endianness bug on the Realtek Interrupt Controller (Rustam
Adilov)
- Fix incorrect sleeping allocation in critical section in the
ast2700-intc irqchip driver (Ryan Chen)
- Fix two bugs in the GICv5 irqchip driver: clear IRQ affinity properly
on teardown, and fix IRQ serialization bug on disabling the IRQ
(Sascha Bischoff)
* tag 'irq-urgent-2026-08-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/irq-realtek-rtl: Use readl_be()/writel_be() instead of readl()/writel()
irqchip/gic-v5: Defer default SPI and LPI IAFFID programming
irqchip/gic-v5: Use logical cpu 0 irs_data for dynamic IST allocation
irqchip/gic-v5: Release IRS iomem region on driver init failure
irqchip/gic-v5: Fix gicv5_init_common() error paths
irqchip/gic-v5: Disable IRSes on probe failures
irqchip/gic-v5: Check for NULL LPI domain on domain teardown
irqchip/gic-v5: Check get_logical_index() return value in MADT IAFFID parsing
irqchip/gic-v5: Synchronize CPU interface disable
irqchip/gic-v5: Clear per-CPU IRS data on teardown
irqchip/ast2700-intc: Disable all interrupt merge banks on probe
irqchip/ast2700-intc: Avoid allocating in the irq_domain activate() callback
irqchip/renesas-rzg2l: Fix loss of interrupt
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git://git.kernel.org/pub/scm/linux/kernel/git/krisman/unicode
Pull unicode updates from Gabriel Krisman Bertazi:
"Two minor fixes:
- Remove the normalization function that we no longer use (David Alan
Gilbert))
- Fix a parsing issue in the encoding version argument passed by
filesystems (me)"
* tag 'unicode-for-next-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/krisman/unicode:
unicode: Properly reject invalid encoding version strings
utf8: Remove unused utf8_normalize
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tcp_select_initial_window() assumes that callers never pass an MSS
smaller than 1, but route-derived advmss values can violate that
assumption.
A too-small explicit RTAX_ADVMSS is one way to get there, but it is not
the only one. The same divide-by-zero can also be reached through the
"default advmss" path when RTAX_ADVMSS is left at 0 and the effective
advmss is later driven down by route MTU and min_adv_mss.
Introduce a tcp_dst_advmss() helper that clamps route advmss to
TCP_MIN_MSS before TCP consumes it, and use it in the TCP paths that
derive advmss from dst metrics. This keeps the effective MSS from
dropping to zero before tcp_select_initial_window() rounds the receive
window.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Cc: stable@vger.kernel.org
Reported-by: Vega <vega@nebusec.ai>
Signed-off-by: Yong Wang <edragain@163.com>
Signed-off-by: Ren Wei <weir@nebusec.ai>
Link: https://patch.msgid.link/251eaf8277fa7c66364c9815c5da01662d269181.1787074852.git.edragain@163.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/sergeh/linux
Pull capabilities update from Serge Hallyn:
"Just one trivial patch which corrects two comments to avoid kernel-doc
warnings"
* tag 'caps-pr-20260820' of git://git.kernel.org/pub/scm/linux/kernel/git/sergeh/linux:
capability: remove non-kernel-doc comments
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Under heavy workloads or during background GC/fallocate operations,
nat_tree_lock can experience high lock contention between background
readers (e.g. f2fs_get_node_info() in gc_data_segment) and writers
(e.g. flush_nat_entries, set_node_addr, shrinker).
[375067.327986][T13777] schedule+0x4c/0x114
[375067.327997][T13777] f2fs_get_node_info+0x438/0x5c4
[375067.328002][T13777] f2fs_get_inode_page+0x1e0/0x3f0
[375067.328013][T13777] f2fs_iget+0x88/0x1180
[375067.328024][T13777] f2fs_lookup+0x168/0x3a8
[375067.328035][T13777] path_openat+0xa28/0x1b04
[375067.328046][T13777] do_filp_open+0xac/0x130
[375067.328056][T13777] do_sys_openat2+0x140/0x21c
[375067.328066][T13777] __arm64_sys_openat+0x70/0x9c
[375067.330299][T13777] schedule+0x4c/0x114
[375067.330310][T13777] schedule_preempt_disabled+0x24/0x40
[375067.330321][T13777] rwsem_down_write_slowpath+0x3b4/0x9d0
[375067.330332][T13777] down_write+0x98/0x170
[375067.330343][T13777] set_node_addr+0x74/0x4b4
[375067.330354][T13777] f2fs_new_node_page+0xb0/0x280
[375067.330444][T13777] f2fs_new_inode_page+0x3c/0x64
[375067.330455][T13777] f2fs_init_inode_metadata+0x4c/0x47c
[375067.330461][T13777] f2fs_add_regular_entry+0x258/0x5b8
[375067.330471][T13777] f2fs_add_dentry+0x100/0x158
[375067.330476][T13777] f2fs_do_add_link+0x84/0x140
[375067.330487][T13777] f2fs_create+0xec/0x250
[375067.331759][T13777] schedule+0x4c/0x114
[375067.331770][T13777] f2fs_down_read+0x9c/0xc4
[375067.331781][T13777] f2fs_need_inode_block_update+0x20/0x10c
[375067.331792][T13777] f2fs_do_sync_file+0x478/0x830
[375067.331802][T13777] f2fs_sync_file+0x2c/0x40
This patch converts nat_tree_lock to use the f2fs_{down,up}_{read,write}_trace
infrastructure.
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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- Use common wait time definitions for PCIe link monitoring instead of
defining driver-private duplicates (Thierry Reding)
- Add LECARC PMU IDs to the DWC RAS/DES VSEC list so it can take advantage
of the existing debugfs support for silicon debug, error injection, and
event counters (Brett Zhou)
* pci/controller/misc:
PCI: dwc: Add PCI ID for LECARC PCIe PMU
PCI: Use standard wait times for PCIe link monitoring
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- Support device ID 0x28C1 and assume that BIOS has already enumerated the
hierarchy below VMD and stored bus range info for OS to use (Nirmal
Patel)
- Add support for VMCONFIG BUS_RESTRICT_CFG=3, which makes it possible to
enumerate downstream devices on Intel Arrow Lake-HX systems and probably
others (Ali Alaei)
- Observe _OSC negotiation for VMD hierarchy only when running on bare
metal, not when running in a VM (Nirmal Patel)
- Add Nova Lake (NVL) and Dunlow (DNL) Device IDs (Szymon Durawa)
* pci/controller/vmd:
PCI: vmd: Add Nova Lake (NVL) and Dunlow (DNL) Device IDs
PCI: vmd: Only copy root bridge _OSC control flags in bare metal OS
PCI: vmd: Handle BUS_RESTRICT_CFG value 3 for Arrow Lake-HX
PCI: vmd: Add feature to scan BIOS-enumerated devices
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- Fix NULL pointer dereference that caused enumeration failures on 32-bit
CAM systems (Steffen Persvold)
* pci/controller/host-generic:
PCI: host-generic: Fix NULL pointer dereference on 32-bit CAM systems
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* pci/controller/root-port-reset:
misc: pci_endpoint_test: Add AER error handlers
PCI: dw-rockchip: Implement .reset_root_port() and use for link down
PCI: qcom: Implement .reset_root_port() and use for link down
PCI: host-common: Add link down handling for Root Ports
PCI/ERR: Add support for resetting the Root Ports in a platform-specific way
PCI: dwc: ep: Clear MSI iATU mapping in dw_pcie_ep_cleanup()
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- Add support for PCIe WAKE# interrupt when described via DT (Krishna
Chaitanya Chundru)
* pci/wake:
PCI: Add support for PCIe WAKE# interrupt
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git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux
Pull module updates from Petr Pavlu:
- Remove unnecessary module::args. Nowadays, no parameter-handling code
points into the module::args buffer. The last user of module::args in
xtensa/simdisk is updated and the data is then removed
- Add Rust support for boolean parameters. This will initially be used
by the Rust null block driver
- Fix clearing the current charp parameter value when setting a new one
fails due to an allocation failure
- Improve the debugging code for kmod (request_module()) duplicates.
Fix a potential use-after-free when waiting on a duplicate request
and make several general improvements to the code
- Fix the symbol size returned when looking up a data symbol through
kallsyms
- Smaller fixes and cleanups
* tag 'modules-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux:
params: fix charp corruption on allocation failure
module: validate string table section types
module/dups: Clean up includes
module/dups: Use strcmp() to compare module names
module/dups: Use scope-based cleanup helpers
module/dups: Avoid unnecessary kmod_dup_req allocations
module/dups: Fix use-after-free in kmod_dup_req lifetime handling
module/dups: Inform duplicate requests about the result directly
rust: module_param: support bool parameters
rust: module_param: return value by copy from `value`
module: Remove unnecessary module::args
xtensa/simdisk: Avoid referring to module::args
module: Remove unused DISCARD_EH_FRAME definition from module.lds.S
module: procfs: use matching type for accumulator in module_total_size()
module: use strscpy() to copy module names in stats and dup tracking
params: fix path of /sys/module/XYZ/parameters/ in comment
module/kallsyms: fix nextval for data symbol lookup
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Pull MIPS updates from Thomas Bogendoerfer:
- switch gpio code to use swnodes
- rework of TXX9 gpio code
- enable multi-vpe for econet
- cleanups and fixes
* tag 'mips_7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
mips: dts: econet: Describe dual-VPE 34Kc processor
mips: econet: add multi-vpe capability to EN751221
MIPS: ptrace: Fix syscall skipping via PTRACE_SYSCALL
mips: remove dead select
MIPS: BCM47XX: Convert buttons to software nodes
ssb: gpio: Add and register software node for GPIO controller
bcma: gpio: Add and register software node for GPIO controller
MIPS: ip22-gio: Drop #include of <linux/mod_devicetable.h>
MIPS: TXX9: Clean up txx9_iocled_init()
MIPS: TXX9: Convert gpio_txx9 to dynamic GPIO base allocation
MIPS: TXX9: Drop GPIOLIB_LEGACY select
MIPS: TXX9: Use GPIO lookup table for iocled LEDs
MIPS: TXX9: Reduce TXX9_IOCLED_MAXLEDS to 3
MIPS: TXX9: rbtx4927: Use GPIO lookup table for TXx9 LEDs
MIPS: TXX9: rbtx4927: Use GPIO lookup table for SIO DTR
MIPS: TXX9: Remove txx9_7segled_*() forward declarations
MIPS: TXX9: Remove tx4938_spi_init() and txx9_spi_init()
MIPS: kernel: proc: Use two seq_putc() calls in show_cpuinfo()
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git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux
Pull Landlock update from Mickaël Salaün:
"This improves observability with Landlock tracepoints support, which
required some refactoring for dedicated domain types and common
helpers shared with audit code.
A LANDLOCK_RESTRICT_SELF_NO_NEW_PRIVS flag is also added to improve
process-wide domain enforcement consistency.
Whiteout files are now correctly handled and tested, and a few other
fixes"
* tag 'landlock-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux: (34 commits)
landlock: Document tracepoints
selftests/landlock: Add landlock_enforce_domain trace tests
selftests/landlock: Add scope and ptrace tracepoint tests
selftests/landlock: Add network tracepoint tests
selftests/landlock: Add filesystem tracepoint tests
selftests/landlock: Add trace event test infrastructure and tests
landlock: Add tracepoints for ptrace and scope denials
landlock: Add landlock_deny_access_fs and landlock_deny_access_net
landlock: Add tracepoints for rule checking
landlock: Add landlock_enforce_domain tracepoint
landlock: Add create_domain and free_domain tracepoints
landlock: Add landlock_add_rule_fs and landlock_add_rule_net tracepoints
landlock: Add create_ruleset and free_ruleset tracepoints
landlock: Consolidate access-right and scope names in a shared header
landlock: Decouple the per-denial logging decision from CONFIG_AUDIT
landlock: Split denial logging from audit into common framework
landlock: Split struct landlock_domain from struct landlock_ruleset
landlock: Move domain query functions to domain.c
landlock: Prepare ruleset and domain type split
samples/landlock: Add LANDLOCK_RESTRICT_SELF_NO_NEW_PRIVS to sampler
...
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git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
Pull power supply and reset updates from Sebastian Reichel:
"Power-supply core:
- Add PbAc, NiZn, RAM, and ZnAr battery chemistry types
- Create LED triggers based on properties instead of device type
- Provide power_supply_get_system_batteries() for usage with USB-C
- Add registration init callback for race-free device setup
Power-supply drivers:
- new TI BQ25630 charger driver
- new SG Micro sgm41542 charger driver
- bq257xx: Add support for BQ25792
- max8903: add DC and USB input current-limit controls
- max17042_battery: Initialize MAX17055 from battery info
- sbs-battery: map newly introduced battery chemistries
- drop extra error messages for IRQ request failures
- lot's of driver removal race condition fixes
- misc small cleanups and fixes
Reset drivers:
- add MCF5441x RCM power-on reason driver
- misc small cleanups and fixes"
* tag 'for-v7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (115 commits)
power: supply: bq27xxx: bq27z561: fix invalid AverageEnergy address
power: supply: bq27xxx: bq28z610: fix invalid AverageEnergy address
power: supply: bq27xxx: bq27520g4: fix REG_TTES address
power: supply: max17040: synchronize work cancellation on suspend
power: supply: lp8727: fix use-after-free in lp8727_release_irq()
power: supply: bq256xx: drain usb_work before freeing the charger
power: supply: qcom_battmgr: fix battery chemistry strncmp length
power: supply: bd99954: Drop bad register fields
power: supply: bd71828: Do not hide errors
power: supply: bd71828: Drop duplicate power-supply property
power: supply: bd71828: Fix current direction
power: supply: bd71815: Fix temperature reading
power: supply: add stubs for notifier registration helpers
power: supply: ucs1002: fix use-after-free on remove
power: supply: lp8788-charger: fix use-after-free on remove
power: supply: ab8500_fg: fix use-after-free on remove
power: supply: bq24257: fix use-after-free on remove
power: supply: qcom_battmgr: fix use-after-free
power: supply: max17040: drop incorrect I2C functionality check
power: supply: charger-manager: register regulators before exposing sysfs
...
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Pull MMC updates from Ulf Hansson:
"MMC core:
- Reject invalid perdev_minors for the block device before division
- Document DT fixed-layout NVMEM provider support for eMMC cards
MMC host:
- Convert a couple of plain text DT bindings to the yaml format
- bcm2835: DMA mapping improvements
- cqhci: Fix sparse warnings for endian conversions
- dw_mmc: Stop and complete DMA also in busy state
- dw_mmc-rockchip: Add support for the RV1106 variant
- litex_mmc: Add dynamic bus width support
- moxart: Propagate error for DMA completion timeout
- pxamci: Remove PXA remnants for the PXA93x support
- rtsx_usb_sdmmc: Avoid USB I/O in runtime autosuspend
- rtsx_usb_sdmmc: Suppress false CD after init timeout
- sdhci_am654: Add Judith Mendez as maintainer
- sdhci-esdhc-mcf: Do not use readl()/writel() on ColdFire
- sdhci-msm: Extend the DT bindings for ICE
- sdhci-tegra: Add support for Tegra264/Tegra238 variants
- sunxi: Add support for the Allwinner A733 variant
- via-sdmmc: Clean up card detect work at remove and in probe error path"
* tag 'mmc-v7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (35 commits)
ARM: PXA: Fix build error for PXA93x
dt-bindings: mmc: sunxi: add compatible string for Allwinner A733 MMC0/1/2
dt-bindings: mmc: Document fixed-layout NVMEM provider support
mmc: sdhci-tegra: Add Tegra264 SoC data
dt-bindings: mmc: tegra: Document Tegra264 SDHCI
mmc: sdhci-tegra: Add Tegra238 SoC data
dt-bindings: mmc: tegra: Document Tegra238 SDHCI
mmc: omap_hsmmc: use platform_get_irq_optional for wake IRQ
mmc: via-sdmmc: cancel card-detect work on remove
mmc: via-sdmmc: stop card-detect handling on probe failure
mmc: moxart: use platform helpers for resource and IRQ
mmc: host: Remove redundant dev_err()/dev_err_probe()
mmc: bcm2835: DMA mapping improvements
mmc: dw_mmc: move declaration of dw_mci_pmops
dt-bindings: mmc: rockchip-dw-mshc: Add RV1106 compatible
mmc: rtsx_usb_sdmmc: suppress false CD after init timeout
misc: rtsx_usb: avoid USB I/O in runtime autosuspend
mmc: sdhci-of-dwcmshc: Log eMMC reset calls
mmc: block: reject invalid perdev_minors before division
mmc: sdhci-of-ma35d1: add missing MODULE_DEVICE_TABLE()
...
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Pull RDMA updates from Jason Gunthorpe:
"About the normal size, still a lot of AI bug fixes and so on, but some
interesting new functionality too:
- Assorted locking, bounds-checking, cleanup, and error-path fixes
across UCMA/CMA, bng_re, bnxt_re, cxgb4, EFA, ERDMA, HFI1, HNS,
ionic, iRDMA, mlx4/mlx5, RXE, SIW, SRP/SRPT, and iSER target.
- netlink report for max # of supported resources
- get_zeroed_page()/etc removal
- Robust udata for ionic
- Allow unique RDMA device names per network namespace
- Completion counters and v2 admit queue support for EFA
- UC QP support for MANA
- Completion timestamps for ionic
- Harden uverbs data validation and resource lifetime handling,
fixing several core use-after-free conditions.
- bnxt_re toggle-page ownership and lifetime bug fixes
- dmabuf SRQ support for mlx5"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (160 commits)
RDMA/ucma: Allow path records to exactly fit the output buffer
RDMA/uverbs: Guard legacy bundles without method_elm
RDMA/efa: Add support for 128B admin v2 SQ entry
RDMA/efa: Generalize the admin SQ
RDMA/efa: Decouple admin command payload from admin header
RDMA/rxe: Fix OOB in free_rd_atomic_resources()
RDMA/cma: Fix WARNING in res_to_rt
RDMA/cxgb4: Free debugfs on registration failure
RDMA/cxgb4: Cancel reg_work before freeing device on remove
RDMA/ucma: Lock the handler in ucma_set_ib_path()
RDMA/ucma: Lock the handler in ucma_write_cm_event()
RDMA/erdma: restrict the driver to little-endian systems
RDMA/ionic: Embed counter driver data in rdma_counter allocation
RDMA/ionic: Cap eq_count to the eth driver's interrupt vector budget
RDMA/siw: Fix use-after-free in siw_accept()
IB/isert: post the full-feature receive buffers after session registration
IB/isert: delay the final Login Response until the session is registered
RDMA/srp: fix heap information leak on a truncated SRP_CRED_REQ
RDMA/erdma: Hold QP references for AE and CM processing
RDMA/erdma: Hold CQ references when processing EQ events
...
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Pull SCSI updates from James Bottomley:
"One new driver: leapraid (similar to mpi3mr but OK'd by Broadcom). The
usual suspects for driver updates (ufs, qla2xxx, smartpqi, zfcp, fnic,
ibmvfc) plus a few small core updates: a fix for an uninitialized sg
list pad bytes plus the removal of the dma mask check for max sectors.
The big update in the sd driver is mostly code refactoring for obscure
error leg handling"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (195 commits)
scsi: fnic: Fix built-in NVMe/FC build
scsi: fnic: Fix invalid comparison for error
scsi: core: Fill in DMA padding bytes in scsi_alloc_sgtables()
scsi: zfcp: Enable CONTEXT_ANALYSIS
scsi: zfcp: Add __must_hold() attribute to zfcp_qdio_sbal_get()
scsi: fnic: Use GFP_ATOMIC for VLAN alloc under spinlock
scsi: storvsc: Support manual scans for all Hyper-V targets
scsi: sd: Fix sd_done() sense handling condition
scsi: sd: Fix special_vec mempool leak when scsi_alloc_sgtables() fails
scsi: sd: Fix error handling in sd_probe() after large pool creation failure
scsi: leapraid: Add driver documentation
scsi: leapraid: Add new SCSI driver
scsi: ufs: Add support for the aggregated read query opcode
scsi: ufs: Use unsigned types for the BSG query
scsi: ibmvfc: Fix spelling mistake "Deleteing" -> "Deleting"
scsi: qla2xxx: Update version to 12.00.00.2607b2
scsi: qla2xxx: Bound i2c->length in I2C bsg handlers
scsi: qla2xxx: Zero SFP DMA buffer in FRU/I2C bsg handlers
scsi: qla2xxx: Validate BSG request_len before reading vendor_cmd[]
scsi: qla2xxx: Zero-init bsg stack buffers to avoid info leak
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