From 30b4dc9bbbe1c65fe5a912c37d896cde2f19a3b4 Mon Sep 17 00:00:00 2001 From: Naveen Albert 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; }