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authorGeorge Joseph <gjoseph@digium.com>2017-06-14 10:12:21 -0600
committerGeorge Joseph <gjoseph@digium.com>2017-06-14 11:16:54 -0500
commit65ed2ea311146264c4ae0c5edd6c5932e6b06f32 (patch)
treef5947fc34fc43c09d036234cc0b128992791e7e5 /res/res_pjsip_pubsub.c
parentc33168c14761a38ec8732dbcb6d3be2758a6571a (diff)
res_pjsip_pubsub: Fix reference to released endpoint
destroy_subscription was attempting to get the id of the subscription tree's endpoint after we'd already called ao2_cleanup on it causing a segfault. Moved the cleanup until after the debug statement and since endpoint could also be NULL at this point, check for that as well. ASTERISK-27057 #close Reported-by: Ryan Smith Change-Id: Ice0a7727f560cf204d870a774c6df71e159b1678
Diffstat (limited to 'res/res_pjsip_pubsub.c')
-rw-r--r--res/res_pjsip_pubsub.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/res/res_pjsip_pubsub.c b/res/res_pjsip_pubsub.c
index a1f3f2462..9f0eae241 100644
--- a/res/res_pjsip_pubsub.c
+++ b/res/res_pjsip_pubsub.c
@@ -1086,7 +1086,9 @@ static void remove_subscription(struct sip_subscription_tree *obj)
static void destroy_subscription(struct ast_sip_subscription *sub)
{
ast_debug(3, "Destroying SIP subscription from '%s->%s'\n",
- ast_sorcery_object_get_id(sub->tree->endpoint), sub->resource);
+ sub->tree->endpoint ? ast_sorcery_object_get_id(sub->tree->endpoint) : "Unknown",
+ sub->resource);
+
ast_free(sub->body_text);
AST_VECTOR_FREE(&sub->children);
@@ -1243,14 +1245,14 @@ static void subscription_tree_destructor(void *obj)
sub_tree->endpoint ? ast_sorcery_object_get_id(sub_tree->endpoint) : "Unknown",
sub_tree->root ? sub_tree->root->resource : "Unknown");
- ao2_cleanup(sub_tree->endpoint);
-
destroy_subscriptions(sub_tree->root);
if (sub_tree->dlg) {
ast_sip_push_task_synchronous(sub_tree->serializer, subscription_unreference_dialog, sub_tree);
}
+ ao2_cleanup(sub_tree->endpoint);
+
ast_taskprocessor_unreference(sub_tree->serializer);
ast_module_unref(ast_module_info->self);
}