linux-kernel - Re: [syzbot] KASAN: use-after-free Write in io_submit

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 07 Dec 2021 21:04:11 -0800
From:   syzbot <syzbot+3587cbbc6e1868796292@...kaller.appspotmail.com>
To:     asml.silence@...il.com, axboe@...nel.dk, bcrl@...ck.org,
        linux-aio@...ck.org, linux-block@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        syzkaller-bugs@...glegroups.com, viro@...iv.linux.org.uk
Subject: Re: [syzbot] KASAN: use-after-free Write in io_submit_one

syzbot has bisected this issue to:

commit 54a88eb838d37af930c9f19e1930a4fba6789cb5
Author: Pavel Begunkov <asml.silence@...il.com>
Date:   Sat Oct 23 16:21:32 2021 +0000

    block: add single bio async direct IO helper

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1615e2b9b00000
start commit:   04fe99a8d936 Add linux-next specific files for 20211207
git tree:       linux-next
final oops:     https://syzkaller.appspot.com/x/report.txt?x=1515e2b9b00000
console output: https://syzkaller.appspot.com/x/log.txt?x=1115e2b9b00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=4589399873466942
dashboard link: https://syzkaller.appspot.com/bug?extid=3587cbbc6e1868796292
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=17db884db00000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=14e9eabdb00000

Reported-by: syzbot+3587cbbc6e1868796292@...kaller.appspotmail.com
Fixes: 54a88eb838d3 ("block: add single bio async direct IO helper")

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