From 12c0bfb3f53a1e0fbf584c9c591273ba3dc0f613 Mon Sep 17 00:00:00 2001
From: jeanlf <jeanlf@gpac.io>
Date: Mon, 30 Aug 2021 17:20:00 +0200
Subject: [PATCH] [PATCH] fixed #1900

Gbp-Pq: Name CVE-2021-40568.patch
---
 src/media_tools/av_parsers.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/media_tools/av_parsers.c b/src/media_tools/av_parsers.c
index e92cd16..aa9eda1 100644
--- a/src/media_tools/av_parsers.c
+++ b/src/media_tools/av_parsers.c
@@ -5669,7 +5669,7 @@ static s32 svc_parse_slice(GF_BitStream *bs, AVCState *avc, AVCSliceInfo *si)
 	if (si->slice_type > 9) return -1;
 
 	pps_id = gf_bs_get_ue(bs);
-	if (pps_id > 255)
+	if ((pps_id < 0) || (pps_id > 255))
 		return -1;
 	si->pps = &avc->pps[pps_id];
 	si->pps->id = pps_id;
-- 
2.30.2