From: Al Viro <viro@zeniv.linux.org.uk>
Date: Wed, 28 May 2025 02:39:51 +0000 (-0400)
Subject: landlock: opened file never has a negative dentry
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d1832e648d2be564e4b5e357f94d0f33156590dc;p=thirdparty%2Fkernel%2Fstable.git

landlock: opened file never has a negative dentry

Reviewed-by: Christian Brauner <brauner@kernel.org>
Acked-by: Mickaël Salaün <mic@digikod.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---

diff --git a/security/landlock/syscalls.c b/security/landlock/syscalls.c
index 33eafb71e4f31..0116e9f93ffe3 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;