Re: [PATCH 1/1] io_uring: sqpoll: zero sqd->thread on tctx errors

[Jens Axboe <axboe@xxxxxxxxx>]

On Fri, 10 Jan 2025 14:31:23 +0000, Pavel Begunkov wrote:
> Syzkeller reports:
> 
> BUG: KASAN: slab-use-after-free in thread_group_cputime+0x409/0x700 kernel/sched/cputime.c:341
> Read of size 8 at addr ffff88803578c510 by task syz.2.3223/27552
>  Call Trace:
>   <TASK>
>   ...
>   kasan_report+0x143/0x180 mm/kasan/report.c:602
>   thread_group_cputime+0x409/0x700 kernel/sched/cputime.c:341
>   thread_group_cputime_adjusted+0xa6/0x340 kernel/sched/cputime.c:639
>   getrusage+0x1000/0x1340 kernel/sys.c:1863
>   io_uring_show_fdinfo+0xdfe/0x1770 io_uring/fdinfo.c:197
>   seq_show+0x608/0x770 fs/proc/fd.c:68
>   ...
> 
> [...]

Applied, thanks!

[1/1] io_uring: sqpoll: zero sqd->thread on tctx errors
      commit: 1593ed0d510769514b648e09f8b7b71cc7fc18ec

Best regards,
-- 
Jens Axboe