From 83eb113e0f31fa328a85233283854c985c42b064 Mon Sep 17 00:00:00 2001
From: Naveen Albert <asterisk@phreaknet.org>
Date: Sun, 13 Nov 2022 22:15:07 +0000
Subject: [PATCH] func_presencestate: Fix invalid memory access.
When parsing information from AstDB while loading,
it is possible that certain pointers are never
set, which leads to invalid memory access and
then, fatally, invalid free attempts on this memory.
We now initialize to NULL to prevent this.
ASTERISK-30311 #close
Change-Id: I6120681d04fd2c12a9473f35ce95a1f8e74e3929
---
funcs/func_presencestate.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/funcs/func_presencestate.c b/funcs/func_presencestate.c
index 6005e48bb4..8aba89121b 100644
--- a/funcs/func_presencestate.c
+++ b/funcs/func_presencestate.c
@@ -850,8 +850,8 @@ static int load_module(void)
for (; db_entry; db_entry = db_entry->next) {
const char *dev_name = strrchr(db_entry->key, '/') + 1;
enum ast_presence_state state;
- char *message;
- char *subtype;
+ char *message = NULL;
+ char *subtype = NULL;
if (dev_name <= (const char *) 1) {
continue;
}
--
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