linux-kernel - Re: [syzbot] [jfs?] BUG: unable to handle kernel NULL pointer dereference in dtInsertEntry

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Date: Mon, 11 Mar 2024 17:36:53 +0100
From: Jan Kara <jack@...e.cz>
To: syzbot <syzbot+c853277dcbfa2182e9aa@...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?] BUG: unable to handle kernel NULL pointer
 dereference in dtInsertEntry

On Sun 10-03-24 06:58:02, 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=16cb0da6180000
> start commit:   a4d7d7011219 Merge tag 'spi-fix-v6.4-rc5' of git://git.ker..
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=7474de833c217bf4
> dashboard link: https://syzkaller.appspot.com/bug?extid=c853277dcbfa2182e9aa
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=15cc622d280000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1762cf83280000
> 
> If the result looks correct, please mark the issue as fixed by replying with:

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

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