Re: [PATCH v3] f2fs: Add check for deleted inode

[Chao Yu]

On 2024/12/3 1:12, Leo Stone wrote:
> The syzbot reproducer mounts a f2fs image, then tries to unlink an
> existing file. However, the unlinked file already has a link count of 0
> when it is read for the first time in do_read_inode().
>
> Add a check to sanity_check_inode() for i_nlink == 0.
>
> Reported-by: syzbot+b01a36acd7007e273a83@xxxxxxxxxxxxxxxxxxxxxxxxx
> Closes: https://syzkaller.appspot.com/bug?extid=b01a36acd7007e273a83
> Fixes: 39a53e0ce0df ("f2fs: add superblock and major in-memory structure")
> Signed-off-by: Leo Stone <leocstone@xxxxxxxxx>

Reviewed-by: Chao Yu <chao@xxxxxxxxxx>

Thanks,