[PATCH] landlock: opened file never has a negative dentry

[Mickaël Salaün]

On Sun, Jun 15, 2025 at 01:30:11AM +0100, Al Viro wrote:
> [don't really care which tree that goes through; right now it's
> in viro/vfs.git #work.misc, but if somebody prefers to grab it
> through a different tree, just say so]
> 
> Signed-off-by: Al Viro <viro at zeniv.linux.org.uk>

Acked-by: Mickaël Salaün <mic at digikod.net>

I'm happy to let you carry this patch with the others.  Thanks.

> ---
>  security/landlock/syscalls.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/security/landlock/syscalls.c b/security/landlock/syscalls.c
> index 33eafb71e4f3..0116e9f93ffe 100644
> --- a/security/landlock/syscalls.c
> +++ b/security/landlock/syscalls.c
> @@ -303,7 +303,6 @@ static int get_path_from_fd(const s32 fd, struct path *const path)
>  	if ((fd_file(f)->f_op == &ruleset_fops) ||
>  	    (fd_file(f)->f_path.mnt->mnt_flags & MNT_INTERNAL) ||
>  	    (fd_file(f)->f_path.dentry->d_sb->s_flags & SB_NOUSER) ||
> -	    d_is_negative(fd_file(f)->f_path.dentry) ||
>  	    IS_PRIVATE(d_backing_inode(fd_file(f)->f_path.dentry)))
>  		return -EBADFD;
>  
> -- 
> 2.39.5
> 
>