Re: [syzbot] [ntfs3?] KASAN: slab-use-after-free Read in ntfs_write_bh

syzbot
2023-09-27T02:49:27Z

syzbot has bisected this issue to:

commit 5f0fb2210bb34ecd3f7bfde0d8f0068b79b2e094
Author: Christoph Hellwig <hch@lst.de>
Date: Wed Aug 9 22:05:44 2023 +0000

ntfs3: don't call sync_blockdev in ntfs_put_super

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1671b51e680000
start commit: 6465e260f487 Linux 6.6-rc3
git tree: upstream
final oops: https://syzkaller.appspot.com/x/report.txt?x=1571b51e680000
console output: https://syzkaller.appspot.com/x/log.txt?x=1171b51e680000
kernel config: https://syzkaller.appspot.com/x/.config?x=bb54ecdfa197f132
dashboard link: https://syzkaller.appspot.com/bug?extid=bc79f8d1898960d41073
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14aa4e32680000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=171787b6680000

Reported-by: syzbot+bc79f8d1898960d41073@syzkaller.appspotmail.com
Fixes: 5f0fb2210bb3 ("ntfs3: don't call sync_blockdev in ntfs_put_super")

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