[RFC PATCH v14 06/10] landlock: Add syscall implementation
viro at zeniv.linux.org.uk
Tue Mar 17 16:47:09 UTC 2020
On Mon, Feb 24, 2020 at 05:02:11PM +0100, Mickaël Salaün wrote:
> +static int get_path_from_fd(u64 fd, struct path *path)
> + /*
> + * Only allows O_PATH FD: enable to restrict ambiant (FS) accesses
> + * without requiring to open and risk leaking or misuing a FD. Accept
> + * removed, but still open directory (S_DEAD).
> + */
> + if (!(f.file->f_mode & FMODE_PATH) || !f.file->f_path.mnt ||
Could you explain what that one had been be about? The underlined
subexpression is always false; was that supposed to check some
condition and if so, which one?
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