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The x509_name_canon function doesn't check for an error return

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i2d_name_canon can return a negative number on error. We should check it
before continuing.

Reviewed-by: Rich Salz <rsalz@openssl.org>
This commit is contained in:
Matt Caswell 2016-04-28 17:05:21 +01:00
parent 3b7a71b2f0
commit ed3eb5e0cc
1 changed files with 5 additions and 2 deletions
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7
crypto/x509/x_name.c
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@ -335,7 +335,7 @@ static int x509_name_canon(X509_NAME *a)
STACK_OF(STACK_OF_X509_NAME_ENTRY) *intname = NULL;
STACK_OF(X509_NAME_ENTRY) *entries = NULL;
X509_NAME_ENTRY *entry, *tmpentry = NULL;
int i, set = -1, ret = 0;
int i, set = -1, ret = 0, len;
OPENSSL_free(a->canon_enc);
a->canon_enc = NULL;
@ -370,7 +370,10 @@ static int x509_name_canon(X509_NAME *a)
/* Finally generate encoding */
a->canon_enclen = i2d_name_canon(intname, NULL);
len = i2d_name_canon(intname, NULL);
if (len < 0)
goto err;
a->canon_enclen = len;
p = OPENSSL_malloc(a->canon_enclen);