kenmirrors/asterisk
1
0
Fork 0
mirror of https://github.com/asterisk/asterisk.git synced 2025-09-02 11:06:31 +00:00
Code Issues Packages Projects Releases Wiki Activity

AST-2021-006 - res_pjsip_t38.c: Check for session_media on reinvite.

Browse Source 
When Asterisk sends a reinvite negotiating T38 faxing, it's possible a
crash can occur if the response contains a m=image and zero port. The
reinvite callback code now checks session_media to see if it is null or
not before trying to access the udptl variable on it.

ASTERISK-29305

Change-Id: I1dfc51c5fa586e38579ede4bc228edee213ccaa9
(cherry picked from commit b409fa1fff)
This commit is contained in:
Ben Ford
2021-02-25 13:50:47 -06:00
committed by George Joseph
parent 3cd8afbdf2
commit 864fd2dde1
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
res/res_pjsip_t38.c
View File

@@ -325,7 +325,7 @@ static int t38_reinvite_response_cb(struct ast_sip_session *session, pjsip_rx_da
* If there is a session_media object, but no udptl object available
* then it's assumed the stream was declined.
*/
if (!session_media->udptl) {
if (session_media && !session_media->udptl) {
session_media = NULL;
}