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-rw-r--r--crypto/asymmetric_keys/public_key.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/crypto/asymmetric_keys/public_key.c b/crypto/asymmetric_keys/public_key.c
index 8892908ad58c..788a4ba1e2e7 100644
--- a/crypto/asymmetric_keys/public_key.c
+++ b/crypto/asymmetric_keys/public_key.c
@@ -356,7 +356,8 @@ int public_key_verify_signature(const struct public_key *pkey,
if (ret)
goto error_free_key;
- if (strcmp(sig->pkey_algo, "sm2") == 0 && sig->data_size) {
+ if (sig->pkey_algo && strcmp(sig->pkey_algo, "sm2") == 0 &&
+ sig->data_size) {
ret = cert_sig_digest_update(sig, tfm);
if (ret)
goto error_free_key;