X-Git-Url: https://wagner.pp.ru/gitweb/?a=blobdiff_plain;f=gost_grasshopper_cipher.c;h=f0419e3029c8f8aa8ebe1d6fdebece9477354d87;hb=c3eb4304e412235062c6cf45f407c80cddbaf944;hp=ceafa41a69052c37e71b5a540b67ec917d1f8094;hpb=accdf6582714e6c3acab1cf142de905e54e5559f;p=openssl-gost%2Fengine.git

diff --git a/gost_grasshopper_cipher.c b/gost_grasshopper_cipher.c
index ceafa41..f0419e3 100644
--- a/gost_grasshopper_cipher.c
+++ b/gost_grasshopper_cipher.c
@@ -584,6 +584,10 @@ int gost_grasshopper_cipher_do_ctracpkm_omac(EVP_CIPHER_CTX *ctx,
 		return gost2015_final_call(ctx, c->omac_ctx, KUZNYECHIK_MAC_MAX_SIZE, c->tag, gost_grasshopper_cipher_do_ctracpkm);
 	}
 
+  if (in == NULL) {
+      GOSTerr(GOST_F_GOST_GRASSHOPPER_CIPHER_DO_CTRACPKM_OMAC, ERR_R_EVP_LIB);
+      return -1;
+  }
 	result = gost_grasshopper_cipher_do_ctracpkm(ctx, out, in, inl);
 
 	/* As in and out can be the same pointer, process decrypted here */