linux-kernel - Re: [syzbot] general protection fault in __io_queue

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Message-ID: <00000000000007299005c9bcf9e9@google.com>
Date:   Tue, 17 Aug 2021 01:19:12 -0700
From:   syzbot <syzbot+2b85e9379c34945fe38f@...kaller.appspotmail.com>
To:     asml.silence@...il.com, axboe@...nel.dk, io-uring@...r.kernel.org,
        linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] general protection fault in __io_queue_sqe

syzbot has bisected this issue to:

commit 483fc4e30869f8bd1693aca9cffddb21fb303b32
Author: Pavel Begunkov <asml.silence@...il.com>
Date:   Sun Aug 15 09:40:26 2021 +0000

    io_uring: optimise io_prep_linked_timeout()

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=16fada7e300000
start commit:   b9011c7e671d Add linux-next specific files for 20210816
git tree:       linux-next
final oops:     https://syzkaller.appspot.com/x/report.txt?x=15fada7e300000
console output: https://syzkaller.appspot.com/x/log.txt?x=11fada7e300000
kernel config:  https://syzkaller.appspot.com/x/.config?x=a245d1aa4f055cc1
dashboard link: https://syzkaller.appspot.com/bug?extid=2b85e9379c34945fe38f
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=17479216300000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=147f0111300000

Reported-by: syzbot+2b85e9379c34945fe38f@...kaller.appspotmail.com
Fixes: 483fc4e30869 ("io_uring: optimise io_prep_linked_timeout()")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection