dsa_verify_hash must set stat=0 on any error

2017-09-20 11:58:32 +02:00 · 2017-09-20 11:58:32 +02:00 · 155e29dd68
commit 155e29dd68
parent 4b36f0654f
1 changed files with 3 additions and 0 deletions
--- a/src/pk/dsa/dsa_verify_hash.c
+++ b/src/pk/dsa/dsa_verify_hash.c
@ -101,6 +101,9 @@ int dsa_verify_hash(const unsigned char *sig, unsigned long siglen,
   ltc_asn1_list sig_seq[2];
   unsigned long reallen = 0;

+   LTC_ARGCHK(stat != NULL);
+   *stat = 0; /* must be set before the first return */
+
   if ((err = mp_init_multi(&r, &s, NULL)) != CRYPT_OK) {
      return err;
   }