Re: [syzbot] [ntfs3?] INFO: task hung in __start_renaming

Mateusz Guzik
2025-11-24T08:07:14Z

On Sun, Nov 23, 2025 at 02:44:29PM -0800, syzbot wrote:
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit: fe4d0dea039f Add linux-next specific files for 20251119
> git tree: linux-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=142c0514580000
> kernel config: https://syzkaller.appspot.com/x/.config?x=f20a6db7594dcad7
> dashboard link: https://syzkaller.appspot.com/bug?extid=2fefb910d2c20c0698d8
> compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11cd7692580000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17615658580000
>
> Downloadable assets:
> disk image: https://storage.googleapis.com/syzbot-assets/ce4f26d91a01/disk-fe4d0dea.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/6c9b53acf521/vmlinux-fe4d0dea.xz
> kernel image: https://storage.googleapis.com/syzbot-assets/64d37d01cd64/bzImage-fe4d0dea.xz
> mounted in repro: https://storage.googleapis.com/syzbot-assets/a91529a880b1/mount_0.gz
>
> The issue was bisected to:
>
> commit 1e3c3784221ac86401aea72e2bae36057062fc9c
> Author: Mateusz Guzik <mjguzik@gmail.com>
> Date: Fri Oct 10 22:17:36 2025 +0000
>
> fs: rework I_NEW handling to operate without fences
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17739742580000
> final oops: https://syzkaller.appspot.com/x/report.txt?x=14f39742580000
> console output: https://syzkaller.appspot.com/x/log.txt?x=10f39742580000
>

#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git vfs-6.19.inode