[sr-dev] git:master:134fcbd3: presence: fix potential double free in shutdown routine

[IMS root]

Module: kamailio
Branch: master
Commit: 134fcbd3b2fbb91e4206cceb1de9d1a3a0690ef6
URL: https://github.com/kamailio/kamailio/commit/134fcbd3b2fbb91e4206cceb1de9d1a3a0690ef6

Author: IMS root <root at IMS>
Committer: IMS root <root at IMS>
Date: 2016-07-19T18:08:47+02:00

presence: fix potential double free in shutdown routine

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Modified: modules/presence/hash.c

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Diff:  https://github.com/kamailio/kamailio/commit/134fcbd3b2fbb91e4206cceb1de9d1a3a0690ef6.diff
Patch: https://github.com/kamailio/kamailio/commit/134fcbd3b2fbb91e4206cceb1de9d1a3a0690ef6.patch

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diff --git a/modules/presence/hash.c b/modules/presence/hash.c
index 5c30291..50657e0 100644
--- a/modules/presence/hash.c
+++ b/modules/presence/hash.c
@@ -318,9 +318,14 @@ int delete_shtable(shtable_t htable,unsigned int hash_code,subs_t* subs)
 		{
 			found= s->local_cseq +1;
 			ps->next= s->next;
-			if(s->contact.s!=NULL)
+			if(s->contact.s!=NULL) {
 				shm_free(s->contact.s);
-			shm_free(s);
+				s->contact.s = NULL;
+			}
+			if (s) {
+				shm_free(s);
+				s = NULL;
+			}
 			break;
 		}
 		ps= s;