Check for null sig in wolfSSL_X509_CRL_get_signature

embhorn · embhorn · commit 5efa82a239d6 · 2024-06-18T14:47:01.000-05:00
diff --git a/src/x509.c b/src/x509.c
@@ -8236,7 +8236,8 @@ int wolfSSL_X509_CRL_get_signature(WOLFSSL_X509_CRL* crl,
 {
     WOLFSSL_ENTER("wolfSSL_X509_CRL_get_signature");
 
-    if (crl == NULL || crl->crlList == NULL || bufSz == NULL)
+    if (crl == NULL || crl->crlList == NULL ||
+        crl->crlList->signature == NULL || bufSz == NULL)
         return BAD_FUNC_ARG;
 
     if (buf != NULL)

Original file line number	Diff line number	Diff line change
`@@ -8236,7 +8236,8 @@ int wolfSSL_X509_CRL_get_signature(WOLFSSL_X509_CRL* crl,`
`8236`	`8236`	`{`
`8237`	`8237`	`WOLFSSL_ENTER("wolfSSL_X509_CRL_get_signature");`
`8238`	`8238`
`8239`		`- if (crl == NULL \|\| crl->crlList == NULL \|\| bufSz == NULL)`
	`8239`	`+ if (crl == NULL \|\| crl->crlList == NULL \|\|`
	`8240`	`+ crl->crlList->signature == NULL \|\| bufSz == NULL)`
`8240`	`8241`	`return BAD_FUNC_ARG;`
`8241`	`8242`
`8242`	`8243`	`if (buf != NULL)`