[sr-dev] git:master:83cf034c: modules/presence: prevent segfault on deref. of empty hashtable entry list

[jaybeepee]

Module: kamailio
Branch: master
Commit: 83cf034c20137a81dbd4b3572467b7b1f2f6929f
URL: https://github.com/kamailio/kamailio/commit/83cf034c20137a81dbd4b3572467b7b1f2f6929f

Author: jaybeepee <jason.penton at gmail.com>
Committer: jaybeepee <jason.penton at gmail.com>
Date: 2016-09-28T17:36:42+02:00

modules/presence: prevent segfault on deref. of empty hashtable entry list

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Modified: modules/presence/hash.c

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Diff:  https://github.com/kamailio/kamailio/commit/83cf034c20137a81dbd4b3572467b7b1f2f6929f.diff
Patch: https://github.com/kamailio/kamailio/commit/83cf034c20137a81dbd4b3572467b7b1f2f6929f.patch

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diff --git a/modules/presence/hash.c b/modules/presence/hash.c
index bfce59d..32f1f94 100644
--- a/modules/presence/hash.c
+++ b/modules/presence/hash.c
@@ -112,7 +112,7 @@ subs_t* search_shtable(shtable_t htable,str callid,str to_tag,
 {
 	subs_t* s;
 
-	s= htable[hash_code].entries->next;
+	s= htable[hash_code].entries?htable[hash_code].entries->next:NULL;
 
 	while(s)
 	{
@@ -292,7 +292,7 @@ int delete_shtable(shtable_t htable,unsigned int hash_code,subs_t* subs)
 	lock_get(&htable[hash_code].lock);
 	
 	ps= htable[hash_code].entries;
-	s= ps->next;
+	s= ps?ps->next:NULL;
 		
 	while(s)
 	{