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

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]

Message-ID: <000000000000ef423f05cae95929@google.com>
Date:   Tue, 31 Aug 2021 23:41:08 -0700
From:   syzbot <syzbot+e51249708aaa9b0e4d2c@...kaller.appspotmail.com>
To:     asml.silence@...il.com, axboe@...nel.dk, haoxu@...ux.alibaba.com,
        io-uring@...r.kernel.org, linux-kernel@...r.kernel.org,
        syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] general protection fault in __io_file_supports_nowait

syzbot has bisected this issue to:

commit a8295b982c46d4a7c259a4cdd58a2681929068a9
Author: Hao Xu <haoxu@...ux.alibaba.com>
Date:   Fri Aug 27 09:46:09 2021 +0000

    io_uring: fix failed linkchain code logic

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=147a8045300000
start commit:   b91db6a0b52e Merge tag 'for-5.15/io_uring-vfs-2021-08-30' ..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=167a8045300000
console output: https://syzkaller.appspot.com/x/log.txt?x=127a8045300000
kernel config:  https://syzkaller.appspot.com/x/.config?x=961d30359ac81f8c
dashboard link: https://syzkaller.appspot.com/bug?extid=e51249708aaa9b0e4d2c
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10a91625300000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=12512291300000

Reported-by: syzbot+e51249708aaa9b0e4d2c@...kaller.appspotmail.com
Fixes: a8295b982c46 ("io_uring: fix failed linkchain code logic")

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