KEYS: checking the input id parameters before finding asymmetric key

[linux.git] / crypto / asymmetric_keys / asymmetric_type.c

diff --git a/crypto/asymmetric_keys/asymmetric_type.c b/crypto/asymmetric_keys/asymmetric_type.c
index e4b0ed386bc82f339829fea2dcedd42fe2f0aff5..39aecad286fe482ff3f44fe08b286c2edbf3553b 100644 (file)
--- a/crypto/asymmetric_keys/asymmetric_type.c
+++ b/crypto/asymmetric_keys/asymmetric_type.c
@@ -57,6 +57,8 @@ struct key *find_asymmetric_key(struct key *keyring,
        char *req, *p;
        int len;
 
+       BUG_ON(!id_0 && !id_1);
+
        if (id_0) {
                lookup = id_0->data;
                len = id_0->len;
@@ -105,7 +107,7 @@ struct key *find_asymmetric_key(struct key *keyring,
        if (id_0 && id_1) {
                const struct asymmetric_key_ids *kids = asymmetric_key_ids(key);
 
-               if (!kids->id[0]) {
+               if (!kids->id[1]) {
                        pr_debug("First ID matches, but second is missing\n");
                        goto reject;
                }