linux-kernel - Re: INFO: trying to register non-static key in io_cqring_overflow

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Message-ID: <71b86056-944f-c5e1-b4cf-35833a82761c@kernel.dk>
Date:   Thu, 28 Nov 2019 07:18:28 -0800
From:   Jens Axboe <axboe@...nel.dk>
To:     syzbot <syzbot+be9e13497969768c0e6e@...kaller.appspotmail.com>,
        io-uring@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com,
        viro@...iv.linux.org.uk
Subject: Re: INFO: trying to register non-static key in
 io_cqring_overflow_flush

On 11/28/19 12:35 AM, syzbot wrote:
> Hello,
> 
> syzbot found the following crash on:
> 
> HEAD commit:    d7688697 Merge tag 'for-linus' of git://git.kernel.org/pub..
> git tree:       upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=145e5fcee00000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=12f2051e3d8cdb3f
> dashboard link: https://syzkaller.appspot.com/bug?extid=be9e13497969768c0e6e
> compiler:       clang version 9.0.0 (/home/glider/llvm/clang
> 80fee25776c2fb61e74c1ecb1a523375c2500b69)
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=146c517ae00000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=16550b12e00000
> 
> IMPORTANT: if you fix the bug, please add the following tag to the commit:
> Reported-by: syzbot+be9e13497969768c0e6e@...kaller.appspotmail.com

This is the same as:

syzbot+0d818c0d39399188f393@...kaller.appspotmail.com

which is fixed by eb065d301e8c83643367bdb0898becc364046bda in my
for-5.5/io_uring-post branch, which will go upstream soon. Letting
you know so we don't have duplicate entries for this one.

-- 
Jens Axboe