[Asterisk-code-review] res rtp asterisk: fix memory leak in dtls (asterisk[master])

[Torrey Searle]

Torrey Searle has uploaded a new change for review.

  https://gerrit.asterisk.org/3065

Change subject: res_rtp_asterisk: fix memory leak in dtls
......................................................................

res_rtp_asterisk: fix memory leak in dtls

ensure that cert bios get freed after creating the fingerprint

ASTERISK-26129 #close

Change-Id: I44d23aea07dce80176ca1ff877c5ace9452ef451
---
M res/res_rtp_asterisk.c
1 file changed, 5 insertions(+), 1 deletion(-)


  git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/65/3065/1

diff --git a/res/res_rtp_asterisk.c b/res/res_rtp_asterisk.c
index 1bf1694..119e45d 100644
--- a/res/res_rtp_asterisk.c
+++ b/res/res_rtp_asterisk.c
@@ -1398,7 +1398,7 @@
 	if (!ast_strlen_zero(dtls_cfg->certfile)) {
 		char *private = ast_strlen_zero(dtls_cfg->pvtfile) ? dtls_cfg->certfile : dtls_cfg->pvtfile;
 		BIO *certbio;
-		X509 *cert;
+		X509 *cert = NULL;
 		const EVP_MD *type;
 		unsigned int size, i;
 		unsigned char fingerprint[EVP_MAX_MD_SIZE];
@@ -1440,6 +1440,9 @@
 			ast_log(LOG_ERROR, "Could not produce fingerprint from certificate '%s' for RTP instance '%p'\n",
 				dtls_cfg->certfile, instance);
 			BIO_free_all(certbio);
+			if (cert) {
+				X509_free(cert);
+			}
 			return -1;
 		}
 
@@ -1451,6 +1454,7 @@
 		*(local_fingerprint-1) = 0;
 
 		BIO_free_all(certbio);
+		X509_free(cert);
 	}
 
 	if (!ast_strlen_zero(dtls_cfg->cipher)) {

-- 
To view, visit https://gerrit.asterisk.org/3065
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Gerrit-MessageType: newchange
Gerrit-Change-Id: I44d23aea07dce80176ca1ff877c5ace9452ef451
Gerrit-PatchSet: 1
Gerrit-Project: asterisk
Gerrit-Branch: master
Gerrit-Owner: Torrey Searle <tsearle at gmail.com>