kernel/git/next/linux-next.git/drivers/s390, branch master

Merge branch 'linux-next' of https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git

2026-09-14T15:07:44+00:00

Merge branch 'for-next' of https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git

2026-09-14T15:07:41+00:00

Merge branch 'master' of git://git.kernel.org/pub/scm/virt/kvm/kvm.git

2026-09-14T13:46:32+00:00

Merge tag 'net-7.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2026-09-10T21:07:48+00:00

Pull networking fixes from Jakub Kicinski: "Nothing too exciting, usual stream of fixes. Including fixes from Netfilter, Bluetooth and WPAN. Current release - new code bugs: - Bluetooth: hci_sync: fix not setting CE length properly - eth: enic: match mailbox replies to request numbers Previous releases - regressions: - tunnels: drop stale dst when building an ICMP error for PMTUD - ipv6: null-check fib6_node before accessing in __ip6_del_rt_siblings() (bug in the rtnl_lock -> RCU conversion) - eth: bnxt_en: - fix crashes on Thor2 due to OOB coalescing buffer accesses - prevent queue stop with deferred completions Previous releases - always broken: - eth: - ice: don't dereference pointers from TP_printk() - fix OOB writes on ethtool flow rule dump in 3 drivers - mlx5: fix FEC configuration with RS_544_514_INTERLEAVED_QUAD - dsa: tag_brcm: legacy FCS: request needed tailroom Misc: - net: cap tx_queue_len at S16_MAX to prevent oversized ring alloc - ipv6: flowlabel: cap duplicate leases per socket" * tag 'net-7.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (164 commits) selftests: tc-testing: test action batch failure cleanup net/sched: act_api: release all action references on NEWACTION failure openvswitch: fix wrong flag value in get_ipv6_ext_hdrs() ipmr: account multicast table and route memory net: phy: dp83td510: handle the active-high LED polarity mode net: macb: initialize PTP state before registering clock net: hsr: enable promiscuous mode on interlink port with fwd offload ipv6: fix fib6 walker UAF on seq stop net: stmmac: fix TX descriptor availability check for TSO traffic net/rds: fix tcp stream corruption with large pages net: mana: restore the XDP program pointer when pre-allocation fails net: phy: dp83867: handle the active-high LED polarity mode octeontx2-af: fix PF/CGX debugfs PCI bus lookup net: net_failover: Fix the deadlock in net_failover_slave_name_change() net: phy: mediatek-ge: disable EEE on the MT7530 PHY tcp: reject non zerocopy devmem tx net: ethernet: mtk_eth_soc: populate lpi_interfaces to fix EEE support net: dsa: mt7530: populate lpi_interfaces to fix EEE support net: hinic: fix mailbox segment buffer overflow net: sun4i-emac: fix missing of_node_put() for phy_node ...

virtio_ccw: always take irq_lock in the classic interrupt handler

2026-09-08T08:23:49+00:00

virtio_ccw_int_handler() takes vcdev->irq_lock around its vring_interrupt() calls only when VIRTIO_HARDEN_NOTIFICATION is enabled. The virtio shutdown path calls synchronize_cbs() even when notification hardening is disabled. virtio_reset_device() now does so after the transport reset too. For classic interrupts, synchronize_cbs() takes vcdev->irq_lock for writing, but the interrupt handler does not take the matching read lock in that configuration. synchronize_cbs() can return while a callback is still running. Take the read lock unconditionally so the write side can synchronize with the callbacks. Fixes: 8bd2fa086a04 ("virtio: break and reset virtio devices on device_shutdown()") Assisted-by: LLM Signed-off-by: Karl Mehltretter Signed-off-by: Michael S. Tsirkin Message-ID: <20260908053817.26065-3-kmehltretter@gmail.com>

virtio_ccw: fix synchronize_cbs() after interrupt fallback

2026-09-08T08:23:49+00:00

virtio_ccw_synchronize_cbs() assumes the device uses adapter interrupts when vcdev->airq_info is not NULL. If registering adapter indicators fails, virtio_ccw_find_vqs() falls back to classic interrupts but can leave airq_info set. With VIRTIO_HARDEN_NOTIFICATION enabled, virtio_ccw_int_handler() invokes callbacks under vcdev->irq_lock. synchronize_cbs() instead takes the indicator area lock, so it does not synchronize with those callbacks. Use vcdev->is_thinint, which the fallback clears, to select the lock. Keep the airq_info check because is_thinint can be set before the first find_vqs() call, when airq_info is still NULL. Fixes: 3a232277c1ac ("virtio-ccw: implement synchronize_cbs()") Assisted-by: LLM Signed-off-by: Karl Mehltretter Signed-off-by: Michael S. Tsirkin Message-ID: <20260908053817.26065-2-kmehltretter@gmail.com>

s390/qeth: allow bridgeport queries despite OS_MISMATCH

2026-09-07T23:39:26+00:00

When HiperSockets interfaces on the same VCHID span different OS families, reads of the sysfs attributes bridge_role and bridge_state fail with -EPERM if bridge port ownership belongs to another OS family. As a result, userspace tools such as 'lszdev -ii' cannot retrieve bridge_role and bridge_state, even though firmware returns valid bridge port data for QUERY_BRIDGE_PORTS requests. The firmware reports IPA_RC_SBP_IQD_OS_MISMATCH (0x0010) to indicate that bridge port ownership belongs to a different OS family. For QUERY_BRIDGE_PORTS operations, firmware still returns valid bridge port data (role=none, state=inactive) together with a primary return code of 0x0000 (success). Allow QUERY_BRIDGE_PORTS requests to return the bridge port data provided by the firmware despite OS_MISMATCH. To make the OS family mismatch visible to userspace, represent the firmware-reported role "none" as "none (OS family mismatch)" while preserving the reported bridge_state. The behavior for non-QUERY bridge port commands is unchanged; SET operations continue to return -EPERM when another OS family owns the bridge port. This restores readability of bridge_role and bridge_state. Fixes: 1b05cf6285c1 ("qeth: Include error message for "OS Mismatch"") Cc: stable@vger.kernel.org Suggested-by: Halil Pasic Reviewed-by: Alexandra Winter Signed-off-by: Nagamani PV Link: https://patch.msgid.link/20260901155344.3561483-1-nagamani@linux.ibm.com Signed-off-by: Jakub Kicinski

treewide: refresh kmalloc_obj() conversions

2026-09-05T04:37:00+00:00

This is another run of the Coccinelle script for converting kmalloc() family of allocations to kmalloc_obj() via the existing rules in scripts/coccinelle/api/kmalloc_objs.cocci This catches both the set of kmalloc() uses added since the first kmalloc_obj() conversions in v7.0 and adds a large group missed in the first pass due to Coccinelle not interacting well with the cleanup.h scoped_...() family of macros[1]. I worked around this with spatch's "--macro-file" argument to a file with all the scoped_...() macros mapped to Coccinelle's YACFE_ITERATOR[2] as that was the closest viable control flow indicator I could find. Build tested allmodconfig on x86, arm64, arm, loongarch, mips, powerpc, riscv, and s390 with no new warnings. Link: https://lore.kernel.org/lkml/202609021314.8A9C0B8@keescook/ [1] Link: https://github.com/coccinelle/coccinelle/blob/master/standard.h [2] Signed-off-by: Kees Cook

s390/ism: folio_put() after error

2026-09-04T23:12:36+00:00

dmb->cpu_addr was allocated via folio_alloc(). Use folio_put() instead of kfree() in the error exit of ism_alloc_dmb() to avoid slab allocator corruption. While at it, reset dmb->cpu_addr after folio_put to avoid unintentional UAF by future callers. Fixes: 83781384a96b ("s390/ism: Properly fix receive message buffer allocation") Signed-off-by: Alexandra Winter Reviewed-by: Gerd Bayer Link: https://patch.msgid.link/20260902143733.433574-1-wintera@linux.ibm.com Signed-off-by: Jakub Kicinski

Merge tag 's390-7.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

2026-09-03T17:28:27+00:00

Pull s390 fixes from Heiko Carstens: - Use jiffies instead of jiffies_64 to address a data-race reported by KCSAN - Unpoison cpacf instruction results to address KMSAN reports - Drop unused member from ap_device_id - Fix potential NULL pointer dereferences in IPL code - Add missing length check to SCLP error report handling - Add missing length check to zcrypt CCA code - Fix return code handling in diag324 code - Handle multiple PMU stop callback invocations in perf pai code correctly - Reduce excessive debug feature size in perf pai code from 32 MiB to 4KiB - Switch to common CPU capacity code in topology code to get rid of few lines of code - Address various bugs in corner cases in boot code - Simplify/Rework crst_table_upgrade() to address a potential NULL pointer dereference in case of an allocation failure - Initialize padding bytes in CRT key structure in zcrypt code * tag 's390-7.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/zcrypt: Fix uninitialized padding in CRT key structure s390/mm: Simplify crst_table_upgrade() s390/boot: Bound command line facility ranges s390/boot: Avoid IPL parameter append past command line s390/boot: Fix physical memory search range s390/topology: Switch to common cpu capacity code s390/pai: Reduce excessive debug feature size s390/pai: Handle multiple PMU stop callback invocations s390/diag324: Preserve -EBUSY return code s390/zcrypt: Validate length in reply before using it s390/pci: Fix leak of uninitialized kernel data in SCLP report s390/ipl: Fix NULL deref in dump_reipl without re-IPL parm block s390/ipl: Fix NULL deref in kdump without re-IPL parm block s390/ap: Drop unused member from ap_device_id s390/cpacf: Unpoison instruction results s390/time: Use jiffies instead of jiffies_64