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| author | Faicker Mo <faicker.mo@gmail.com> | 2026-09-08 12:06:29 +0800 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2026-09-10 15:19:06 +0200 |
| commit | 985a663bf00799c1daf1c5789efa6406958780c8 (patch) | |
| tree | 82415db2760ff82b11dc69dd6e978fb5d92e4747 /scripts/basic/split-include.c | |
| parent | ccbe7540e4aad0d1c3acc249697350b93ccb8025 (diff) | |
| download | linux-985a663bf00799c1daf1c5789efa6406958780c8.tar.gz linux-985a663bf00799c1daf1c5789efa6406958780c8.zip | |
net: net_failover: Fix the deadlock in net_failover_slave_name_change()
This is a sibling fix of commit
b84c5632c7b3 ("net: net_failover: Fix the deadlock in slave register").
There is netdev_lock_ops() in the upper callers, so using netif_open()
instead of dev_open().
Call Trace:
__schedule+0x2bb/0x650
schedule+0x27/0xb0
schedule_preempt_disabled+0x15/0x30
__mutex_lock.constprop.0+0x550/0xaf0
__mutex_lock_slowpath+0x13/0x20
mutex_lock+0x3b/0x50
dev_open+0x3b/0xe0
net_failover_slave_name_change+0x22/0x40
failover_event+0xd4/0x1e0
notifier_call_chain+0x62/0xf0
raw_notifier_call_chain+0x16/0x30
call_netdevice_notifiers_info+0x50/0x80
netif_change_name+0x200/0x330
do_setlink.isra.0+0xb12/0xdf0
? security_capable+0x9a/0x1e0
? ns_capable+0x31/0x60
rtnl_setlink+0x302/0x670
? netlink_recvmsg+0x296/0x340
? security_capable+0x9a/0x1e0
? __pfx_rtnl_setlink+0x10/0x10
rtnetlink_rcv_msg+0x384/0x460
? __pfx_rtnetlink_rcv_msg+0x10/0x10
netlink_rcv_skb+0x61/0x120
rtnetlink_rcv+0x15/0x30
netlink_unicast+0x28f/0x3c0
netlink_sendmsg+0x216/0x450
__sys_sendto+0x222/0x230
__x64_sys_sendto+0x24/0x40
x64_sys_call+0x1d5d/0x2390
do_syscall_64+0x105/0x5a0
? do_syscall_64+0x140/0x5a0
? exc_page_fault+0x94/0x1e0
entry_SYSCALL_64_after_hwframe+0x76/0x7e
Fixes: 7e4d784f5810 ("net: hold netdev instance lock during rtnetlink operations")
Signed-off-by: Faicker Mo <faicker.mo@gmail.com>
Reviewed-by: Hangbin Liu <liuhangbin@kylinos.cn>
Link: https://patch.msgid.link/20260908040708.3972058-1-faicker.mo@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'scripts/basic/split-include.c')
0 files changed, 0 insertions, 0 deletions