From: Jens Axboe <axboe@kernel.dk>
To: syzbot <syzbot+7f617d4a9369028b8a2c@syzkaller.appspotmail.com>,
io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com,
viro@zeniv.linux.org.uk
Subject: Re: general protection fault in io_poll_double_wake
Date: Sat, 15 Aug 2020 11:16:17 -0700 [thread overview]
Message-ID: <fb1fe8ff-5c79-a020-f6ea-a28f974bde6b@kernel.dk> (raw)
In-Reply-To: <00000000000018f60505aced798e@google.com>
On 8/15/20 10:00 AM, syzbot wrote:
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit: 7fca4dee Merge tag 'powerpc-5.9-2' of git://git.kernel.org..
> git tree: upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=1264d116900000
> kernel config: https://syzkaller.appspot.com/x/.config?x=21f0d1d2df6d5fc
> dashboard link: https://syzkaller.appspot.com/bug?extid=7f617d4a9369028b8a2c
> compiler: clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81)
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10f211d2900000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1721b0ce900000
>
> The issue was bisected to:
>
> commit 18bceab101adde8f38de76016bc77f3f25cf22f4
> Author: Jens Axboe <axboe@kernel.dk>
> Date: Fri May 15 17:56:54 2020 +0000
>
> io_uring: allow POLL_ADD with double poll_wait() users
I can reproduce this, I'll fix it up. Thanks!
--
Jens Axboe
next prev parent reply other threads:[~2020-08-15 21:57 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-15 17:00 general protection fault in io_poll_double_wake syzbot
2020-08-15 18:16 ` Jens Axboe [this message]
2020-08-15 18:48 ` Jens Axboe
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