[PATCH 13/13] keys: use cred_ids_allow_control()

[Josef Bacik]

KEYCTL_SESSION_TO_PARENT wants the effective uid and gid of the caller to
be all three of the uids and gids of its parent. Use the library.

No functional change.

Assisted-by: LLM
Signed-off-by: Josef Bacik <josef at toxicpanda.com>
---
 security/keys/keyctl.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c
index d14ace88e529..c69448ddb743 100644
--- a/security/keys/keyctl.c
+++ b/security/keys/keyctl.c
@@ -1691,12 +1691,7 @@ long keyctl_session_to_parent(void)
 
 	/* the parent must have the same effective ownership and mustn't be
 	 * SUID/SGID */
-	if (!uid_eq(pcred->uid,	 mycred->euid) ||
-	    !uid_eq(pcred->euid, mycred->euid) ||
-	    !uid_eq(pcred->suid, mycred->euid) ||
-	    !gid_eq(pcred->gid,	 mycred->egid) ||
-	    !gid_eq(pcred->egid, mycred->egid) ||
-	    !gid_eq(pcred->sgid, mycred->egid))
+	if (!cred_ids_allow_control(mycred, CRED_IDS_EFFECTIVE, pcred))
 		goto unlock;
 
 	/* the keyrings must have the same UID */

-- 
2.55.0