Fix an integer signedness problem.

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.2@45332 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/channels/chan_skinny.c b/channels/chan_skinny.c
index c5f148726a1bb3b5b97f8f7570189a7f4187abdb..8291f8b7b60e80c2e441ba1a29bf194a39025b32 100644 (file)
--- a/channels/chan_skinny.c
+++ b/channels/chan_skinny.c
@@ -2863,6 +2863,10 @@ static int get_input(struct skinnysession *s)
                        return -1;
                }
                dlen = letohl(*(int *)s->inbuf);
+               if (dlen < 0) {
+                       ast_log(LOG_WARNING, "Skinny Client sent invalid data.\n");
+                       return -1;
+               }
                if (dlen+8 > sizeof(s->inbuf)) {
                        dlen = sizeof(s->inbuf) - 8;
                }