jitterbuf: Fix memory leak on jitter buffer reset

(issue ASTERISK-22467)
Reported by: Corey Farrell
Patches:
    jitterbuf-jb_reset-leak-1.8.patch
    jitterbuf-jb_reset-leak-11up.patch
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Merged revisions 401786 from http://svn.asterisk.org/svn/asterisk/branches/1.8
........

Merged revisions 401787 from http://svn.asterisk.org/svn/asterisk/branches/11
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Merged revisions 401788 from http://svn.asterisk.org/svn/asterisk/branches/12

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@401789 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/main/jitterbuf.c b/main/jitterbuf.c
index fe4e91f..4add568 100644 (file)
--- a/main/jitterbuf.c
+++ b/main/jitterbuf.c
@@ -73,10 +73,12 @@ static void decrement_losspct(jitterbuf *jb)
 
 void jb_reset(jitterbuf *jb)
 {
-       /* only save settings */
+       /* only save settings and free list */
        jb_conf s = jb->info.conf;
+       jb_frame *fr = jb->free;
        memset(jb, 0, sizeof(*jb));
        jb->info.conf = s;
+       jb->free = fr;
 
        /* initialize length, using the default value */
        jb->info.current = jb->info.target = jb->info.conf.target_extra = JB_TARGET_EXTRA;
@@ -87,7 +89,7 @@ jitterbuf * jb_new()
 {
        jitterbuf *jb;
 
-       if (!(jb = ast_malloc(sizeof(*jb))))
+       if (!(jb = ast_calloc(1, sizeof(*jb))))
                return NULL;
 
        jb_reset(jb);