X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=crypto%2Frsa%2Frsa_pss.c;h=2e44194bdcd0be0398f56330f3429e6fedf6c5cf;hp=7d5b4781a30bce66542d7866c4705f7cd74c3245;hb=8aa02e97a782a4229936d5df6da42db3efe4acd1;hpb=2e5975285e2b65261ce780fa3f5744277b66db34

diff --git a/crypto/rsa/rsa_pss.c b/crypto/rsa/rsa_pss.c
index 7d5b4781a3..2e44194bdc 100644
--- a/crypto/rsa/rsa_pss.c
+++ b/crypto/rsa/rsa_pss.c
@@ -81,6 +81,12 @@ int RSA_verify_PKCS1_PSS(RSA *rsa, const unsigned char *mHash,
 	EVP_MD_CTX ctx;
 	unsigned char H_[EVP_MAX_MD_SIZE];
 
+	if (Hash == NULL)
+		{
+		RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS, RSA_R_BAD_ARGUMENT);
+		goto err;
+		}
+
 	hLen = EVP_MD_size(Hash);
 	/*
 	 * Negative sLen has special meanings: