diff options
| author | mmichelson <mmichelson@f38db490-d61c-443f-a65b-d21fe96a405b> | 2008-04-14 16:25:09 +0000 |
|---|---|---|
| committer | mmichelson <mmichelson@f38db490-d61c-443f-a65b-d21fe96a405b> | 2008-04-14 16:25:09 +0000 |
| commit | ebaed1af0352d82cf200a2a324611a9c92617551 (patch) | |
| tree | 62ec254bf112d6a516e03d939077f3c086e77184 /apps/app_dial.c | |
| parent | 730161f52d94207e2a0327b6960fdde712f8bc82 (diff) | |
Merged revisions 114112 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.4
........
r114112 | mmichelson | 2008-04-14 11:24:22 -0500 (Mon, 14 Apr 2008) | 9 lines
If the datastore has been moved to another channel due to a masquerade, then
freeing the datastore here causes an eventual double free when the new channel
hangs up. We should only free the datastore if we were able to successfully remove
it from the channel we are referencing (i.e. the datastore was not moved).
(closes issue #12359)
Reported by: pguido
........
git-svn-id: http://svn.digium.com/svn/asterisk/trunk@114113 f38db490-d61c-443f-a65b-d21fe96a405b
Diffstat (limited to 'apps/app_dial.c')
| -rw-r--r-- | apps/app_dial.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/apps/app_dial.c b/apps/app_dial.c index 9c2664aa6..6d0c6a6e7 100644 --- a/apps/app_dial.c +++ b/apps/app_dial.c @@ -1600,8 +1600,14 @@ static int dial_exec_full(struct ast_channel *chan, void *data, struct ast_flags time(&start_time); peer = wait_for_answer(chan, outgoing, &to, peerflags, &pa, &num, &result); - ast_channel_datastore_remove(chan, datastore); - ast_channel_datastore_free(datastore); + /* The ast_channel_datastore_remove() function could fail here if the + * datastore was moved to another channel during a masquerade. If this is + * the case, don't free the datastore here because later, when the channel + * to which the datastore was moved hangs up, it will attempt to free this + * datastore again, causing a crash + */ + if (!ast_channel_datastore_remove(chan, datastore)) + ast_channel_datastore_free(datastore); if (!peer) { if (result) { res = result; |