Re: [syzbot] [ntfs3?] WARNING in ntfs_put_super

From: syzbot

Date: Wed Oct 29 2025 - 11:25:05 EST


syzbot has bisected this issue to:

commit 02f312754c873efe076888a2fdca982e56617929
Author: YangWen <anmuxixixi@xxxxxxxxx>
Date: Wed Sep 10 15:17:08 2025 +0000

ntfs3: fix use-after-free of sbi->options in cmp_fnames

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12ba4bcd980000
start commit: f7d2388eeec2 Add linux-next specific files for 20251028
git tree: linux-next
final oops: https://syzkaller.appspot.com/x/report.txt?x=11ba4bcd980000
console output: https://syzkaller.appspot.com/x/log.txt?x=16ba4bcd980000
kernel config: https://syzkaller.appspot.com/x/.config?x=ecdce5bceba74f
dashboard link: https://syzkaller.appspot.com/bug?extid=cc433e4cd6d54736bf80
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16b73d42580000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1019dfe2580000

Reported-by: syzbot+cc433e4cd6d54736bf80@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 02f312754c87 ("ntfs3: fix use-after-free of sbi->options in cmp_fnames")

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