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-rw-r--r--crypto/openssl/crypto/asn1/a_verify.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/crypto/openssl/crypto/asn1/a_verify.c b/crypto/openssl/crypto/asn1/a_verify.c
index da3efaaf8de5..7ded69b170f6 100644
--- a/crypto/openssl/crypto/asn1/a_verify.c
+++ b/crypto/openssl/crypto/asn1/a_verify.c
@@ -138,6 +138,12 @@ int ASN1_item_verify(const ASN1_ITEM *it, X509_ALGOR *a, ASN1_BIT_STRING *signat
unsigned char *buf_in=NULL;
int ret= -1,i,inl;
+ if (!pkey)
+ {
+ ASN1err(ASN1_F_ASN1_ITEM_VERIFY, ERR_R_PASSED_NULL_PARAMETER);
+ return -1;
+ }
+
EVP_MD_CTX_init(&ctx);
i=OBJ_obj2nid(a->algorithm);
type=EVP_get_digestbyname(OBJ_nid2sn(i));