Re: [syzbot] WARNING in io_link_timeout_fn

Jens Axboe
2021-05-12T22:19:49Z

On 5/12/21 2:28 PM, syzbot wrote:
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit: 88b06399 Merge tag 'for-5.13-rc1-part2-tag' of git://git.k..
> git tree: upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=13c0d265d00000
> kernel config: https://syzkaller.appspot.com/x/.config?x=807beec6b4d66bf1
> dashboard link: https://syzkaller.appspot.com/bug?extid=5a864149dd970b546223
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10436223d00000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1715208bd00000
>
> The issue was bisected to:
>
> commit 91f245d5d5de0802428a478802ec051f7de2f5d6
> Author: Jens Axboe <axboe@kernel.dk>
> Date: Tue Feb 9 20:48:50 2021 +0000
>
> io_uring: enable kmemcg account for io_uring requests

Don't think that's right...

> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=144fbb23d00000
> final oops: https://syzkaller.appspot.com/x/report.txt?x=164fbb23d00000
> console output: https://syzkaller.appspot.com/x/log.txt?x=124fbb23d00000
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+5a864149dd970b546223@syzkaller.appspotmail.com
> Fixes: 91f245d5d5de ("io_uring: enable kmemcg account for io_uring requests")

I think this one is already fixed:

#syz test: git://git.kernel.dk/linux-block.git io_uring-5.13

--
Jens Axboe