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

From: syzbot
Date: Sun Jan 14 2024 - 02:18:18 EST


syzbot suspects this issue was fixed by commit:

commit 6f861765464f43a71462d52026fbddfc858239a5
Author: Jan Kara <jack@xxxxxxx>
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