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From: syzbot <[email protected]>
To: [email protected], [email protected],
	[email protected], [email protected],
	[email protected],
	[email protected]
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: <[email protected]> (raw)
In-Reply-To: <[email protected]>

syzbot has bisected this issue to:

commit 34ced75ca1f63fac6148497971212583aa0f7a87
Author: Xiaoguang Wang <[email protected]>
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: [email protected]
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

      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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