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authorRichard Mudgett <rmudgett@digium.com>2015-11-24 12:44:53 -0600
committerRichard Mudgett <rmudgett@digium.com>2015-12-01 13:54:04 -0600
commitfa2072903238ddb8dbba7d75ccf70edb36581f36 (patch)
treecbf6fd65a2b2cd3bd9ba5f78ad7f71ba3f1547eb /channels/chan_sip.c
parente5723d27763b85b66972a275cd90f4a592bcc21f (diff)
Audit improper usage of scheduler exposed by 5c713fdf18f.
channels/chan_iax2.c: * Initialize struct chan_iax2_pvt scheduler ids earlier because of iax2_destroy_helper(). channels/chan_sip.c: channels/sip/config_parser.c: * Fix initialization of scheduler id struct members. Some off nominal paths had 0 as a scheduler id to be destroyed when it was never started. chan_skinny.c: * Fix some scheduler id comparisons that excluded the valid 0 id. channel.c: * Fix channel initialization of the video stream scheduler id. pbx_dundi.c: * Fix channel initialization of the packet retransmission scheduler id. ASTERISK-25476 Change-Id: I07a3449f728f671d326a22fcbd071f150ba2e8c8
Diffstat (limited to 'channels/chan_sip.c')
-rw-r--r--channels/chan_sip.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index 158dc7b18..6cfb59879 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -1709,6 +1709,7 @@ static int publish_expire(const void *data)
ast_assert(esc != NULL);
ao2_unlink(esc->compositor, esc_entry);
+ esc_entry->sched_id = -1;
ao2_ref(esc_entry, -1);
return 0;
}
@@ -1741,6 +1742,11 @@ static struct sip_esc_entry *create_esc_entry(struct event_state_compositor *esc
/* Bump refcount for scheduler */
ao2_ref(esc_entry, +1);
esc_entry->sched_id = ast_sched_add(sched, expires_ms, publish_expire, esc_entry);
+ if (esc_entry->sched_id == -1) {
+ ao2_ref(esc_entry, -1);
+ ao2_ref(esc_entry, -1);
+ return NULL;
+ }
/* Note: This links the esc_entry into the ESC properly */
create_new_sip_etag(esc_entry, 0);