dect
/
asterisk
Archived
13
0
Fork 0
Code Releases Activity

Check for NULL frame, before dereferencing pointer. 

(closes issue #15617)
 Reported by: rain


git-svn-id: http://svn.digium.com/svn/asterisk/trunk@211232 f38db490-d61c-443f-a65b-d21fe96a405b
This commit is contained in:
tilghman 2009-08-09 07:11:22 +00:00
parent 673ecef518
commit 1a4692a9fa
1 changed files with 6 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
apps/app_stack.c
View File

@ -474,7 +474,12 @@ static int local_read(struct ast_channel *chan, const char *cmd, char *data, cha
oldlist = stack_store->data;
AST_LIST_LOCK(oldlist);
frame = AST_LIST_FIRST(oldlist);
if (!(frame = AST_LIST_FIRST(oldlist))) {
/* Not within a Gosub routine */
AST_LIST_UNLOCK(oldlist);
return -1;
}
AST_LIST_TRAVERSE(&frame->varshead, variables, entries) {
if (!strcmp(data, ast_var_name(variables))) {
const char *tmp;