linux-kernel - Re: [syzbot] [jfs?] general protection fault in dtSplitUp

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] [day] [month] [year] [list]

Date: Fri, 12 Jan 2024 10:59:45 +0100
From: Jan Kara <jack@...e.cz>
To: syzbot <syzbot+172bdd582e5d63486948@...kaller.appspotmail.com>
Cc: axboe@...nel.dk, brauner@...nel.org, jack@...e.cz,
	jfs-discussion@...ts.sourceforge.net, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org, shaggy@...nel.org,
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [jfs?] general protection fault in dtSplitUp

On Thu 11-01-24 19:39:03, syzbot wrote:
> syzbot suspects this issue was fixed by commit:
> 
> commit 6f861765464f43a71462d52026fbddfc858239a5
> Author: Jan Kara <jack@...e.cz>
> Date:   Wed Nov 1 17:43:10 2023 +0000
> 
>     fs: Block writes to mounted block devices
> 
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1268fc69e80000
> start commit:   a70385240892 Merge tag 'perf_urgent_for_v6.1_rc2' of git:/..
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=ea03ca45176080bc
> dashboard link: https://syzkaller.appspot.com/bug?extid=172bdd582e5d63486948
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=15692dba880000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=15017b2c880000
> 
> If the result looks correct, please mark the issue as fixed by replying with:
 
Makes sense. When I'm looking at the dashboard I can see there's another
(older) reproducer which is not marked as not reproducing anymore. I
suppose this is because syzbot tests only the latest reproducer? Anyway,
let's close this, if syzbot can find another reproducer for the problem
with writes to mounted devices disabled, it'll surely tell us :)

#syz fix: fs: Block writes to mounted block devices

								Honza
-- 
Jan Kara <jack@...e.com>
SUSE Labs, CR