1 files changed, 3 insertions, 0 deletions

diff --git a/security/keys/keyring.c b/security/keys/keyring.c
index ed851574d07..3dba81c2eba 100644
--- a/security/keys/keyring.c
+++ b/security/keys/keyring.c
@@ -539,6 +539,9 @@ struct key *find_keyring_by_name(const char *name, bool skip_perm_check)
                                     &keyring_name_hash[bucket],
                                     type_data.link
                                     ) {
+                        if (keyring->user->user_ns != current_user_ns())
+                                continue;
+
                         if (test_bit(KEY_FLAG_REVOKED, &keyring->flags))
                                 continue;