linux-kernel - Re: [syzbot] [jfs?] UBSAN: array-index-out-of-bounds in diWrite

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Message-ID: <000000000000c746f0060ee2b23a@google.com>
Date: Sat, 13 Jan 2024 23:18:05 -0800
From: syzbot <syzbot+c1056fdfe414463fdb33@...kaller.appspotmail.com>
To: axboe@...nel.dk, brauner@...nel.org, dave.kleikamp@...cle.com, 
	ghandatmanas@...il.com, jack@...e.cz, jfs-discussion@...ts.sourceforge.net, 
	linux-fsdevel@...r.kernel.org, linux-kernel-mentees@...ts.linuxfoundation.org, 
	linux-kernel@...r.kernel.org, shaggy@...nel.org, 
	syzkaller-bugs@...glegroups.com, syzkaller@...glegroups.com
Subject: Re: [syzbot] [jfs?] UBSAN: array-index-out-of-bounds in diWrite

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=17ec162be80000
start commit:   493ffd6605b2 Merge tag 'ucount-rlimits-cleanups-for-v5.19'..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=d19f5d16783f901
dashboard link: https://syzkaller.appspot.com/bug?extid=c1056fdfe414463fdb33
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12f431d2880000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1208894a880000

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