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

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Message-ID: <000000000000e3d3f9061040b2ff@google.com>
Date: Wed, 31 Jan 2024 08:52:05 -0800
From: syzbot <syzbot+4654552e088ed458b10d@...kaller.appspotmail.com>
To: axboe@...nel.dk, brauner@...nel.org, jack@...e.cz, 
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, 
	reiserfs-devel@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [reiserfs?] BUG: unable to handle kernel NULL pointer
 dereference in reiserfs_find_entry

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=17e6fb5be80000
start commit:   51f269a6ecc7 Merge tag 'probes-fixes-6.4-rc4' of git://git..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=162cf2103e4a7453
dashboard link: https://syzkaller.appspot.com/bug?extid=4654552e088ed458b10d
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1177c895280000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=17f4b2a5280000

If the result looks correct, please mark the issue as fixed by replying with:

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

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