netdev - Re: [PATCH net] mISDN: annotate data-race around dev->work

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Message-Id: 
 <176896380585.703462.3776381750776785744.git-patchwork-notify@kernel.org>
Date: Wed, 21 Jan 2026 02:50:05 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Eric Dumazet <edumazet@...gle.com>
Cc: davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com, horms@...nel.org,
 netdev@...r.kernel.org, eric.dumazet@...il.com, syzkaller@...glegroups.com
Subject: Re: [PATCH net] mISDN: annotate data-race around dev->work

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@...nel.org>:

On Sun, 18 Jan 2026 13:25:28 +0000 you wrote:
> dev->work can re read locklessly in mISDN_read()
> and mISDN_poll(). Add READ_ONCE()/WRITE_ONCE() annotations.
> 
> BUG: KCSAN: data-race in mISDN_ioctl / mISDN_read
> 
> write to 0xffff88812d848280 of 4 bytes by task 10864 on cpu 1:
>   misdn_add_timer drivers/isdn/mISDN/timerdev.c:175 [inline]
>   mISDN_ioctl+0x2fb/0x550 drivers/isdn/mISDN/timerdev.c:233
>   vfs_ioctl fs/ioctl.c:51 [inline]
>   __do_sys_ioctl fs/ioctl.c:597 [inline]
>   __se_sys_ioctl+0xce/0x140 fs/ioctl.c:583
>   __x64_sys_ioctl+0x43/0x50 fs/ioctl.c:583
>   x64_sys_call+0x14b0/0x3000 arch/x86/include/generated/asm/syscalls_64.h:17
>   do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
>   do_syscall_64+0xd8/0x2c0 arch/x86/entry/syscall_64.c:94
>  entry_SYSCALL_64_after_hwframe+0x77/0x7f
> 
> [...]

Here is the summary with links:
  - [net] mISDN: annotate data-race around dev->work
    https://git.kernel.org/netdev/net/c/8175dbf174d4

You are awesome, thank you!
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