From: syzbot <syzbot+78b76ebc91042904f34e@syzkaller.appspotmail.com>
To: asml.silence@gmail.com, axboe@kernel.dk,
io-uring@vger.kernel.org, linux-kernel@vger.kernel.org,
syzkaller-bugs@googlegroups.com,
xiaoguang.wang@linux.alibaba.com
Subject: Re: [syzbot] KASAN: use-after-free Write in __io_free_req
Date: Sun, 31 Oct 2021 15:59:06 -0700 [thread overview]
Message-ID: <000000000000e143c505cfae0138@google.com> (raw)
In-Reply-To: <000000000000fba7bd05cf7eb8f5@google.com>
syzbot has bisected this issue to:
commit 34ced75ca1f63fac6148497971212583aa0f7a87
Author: Xiaoguang Wang <xiaoguang.wang@linux.alibaba.com>
Date: Mon Oct 25 05:38:48 2021 +0000
io_uring: reduce frequent add_wait_queue() overhead for multi-shot poll request
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14f83bbab00000
start commit: bdcc9f6a5682 Add linux-next specific files for 20211029
git tree: linux-next
final oops: https://syzkaller.appspot.com/x/report.txt?x=16f83bbab00000
console output: https://syzkaller.appspot.com/x/log.txt?x=12f83bbab00000
kernel config: https://syzkaller.appspot.com/x/.config?x=cea91ee10b0cd274
dashboard link: https://syzkaller.appspot.com/bug?extid=78b76ebc91042904f34e
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10cf03e2b00000
Reported-by: syzbot+78b76ebc91042904f34e@syzkaller.appspotmail.com
Fixes: 34ced75ca1f6 ("io_uring: reduce frequent add_wait_queue() overhead for multi-shot poll request")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
prev parent reply other threads:[~2021-10-31 22:59 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-29 14:34 [syzbot] KASAN: use-after-free Write in __io_free_req syzbot
2021-10-29 14:45 ` Pavel Begunkov
2021-10-29 17:59 ` Pavel Begunkov
2021-10-29 21:12 ` syzbot
2021-10-29 21:20 ` Pavel Begunkov
2021-10-30 3:58 ` syzbot
2021-10-29 20:53 ` syzbot
2021-10-29 14:46 ` Pavel Begunkov
2021-10-29 21:11 ` syzbot
2021-10-31 12:14 ` Pavel Begunkov
2021-10-31 22:59 ` syzbot [this message]
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