Re: [syzbot] [ext4?] INFO: task hung in vfs_rmdir (2)

Jan Kara
2024-06-03T11:27:13Z

On Sun 02-06-24 20:50:18, syzbot wrote:
> syzbot found the following issue on:
>
> HEAD commit: 4a4be1ad3a6e Revert "vfs: Delete the associated dentry whe..
> git tree: upstream
> console+strace: https://syzkaller.appspot.com/x/log.txt?x=1466269a980000
> kernel config: https://syzkaller.appspot.com/x/.config?x=47d282ddffae809f
> dashboard link: https://syzkaller.appspot.com/bug?extid=42986aeeddfd7ed93c8b
> compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12a5b3ec980000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=103820f2980000

Based on strace (and also the reproducer) this looks purely in exfat
driver. So:

#syz set subsystems: exfat

Honza
--
Jan Kara <jack@suse.com>
SUSE Labs, CR