Re: [syzbot] [udf?] KASAN: use-after-free Read in udf_sync_fs

From: syzbot
Date: Wed Jan 31 2024 - 19:18:14 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=11282540180000
start commit: 55cb5f43689d Merge tag 'trace-v6.7-rc6' of git://git.kerne..
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=e5751b3a2226135d
dashboard link: https://syzkaller.appspot.com/bug?extid=82df44ede2faca24c729
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12dbd63ee80000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1534bed1e80000

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