ffmpeg/CVE-2022-3109.patch

From 37fce673ad98ecc05be37376189e0bf9a3370c89 Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Wed, 26 Jun 2024 15:55:08 +0800
Subject: [PATCH] CVE-2022-3109

---
 libavcodec/vp3.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/libavcodec/vp3.c b/libavcodec/vp3.c
index a2bd2ef..0c62731 100644
--- a/libavcodec/vp3.c
+++ b/libavcodec/vp3.c
@@ -2740,8 +2740,13 @@ static int vp3_decode_frame(AVCodecContext *avctx,
     if (ff_thread_get_buffer(avctx, &s->current_frame, AV_GET_BUFFER_FLAG_REF) < 0)
         goto error;
 
-    if (!s->edge_emu_buffer)
+    if (!s->edge_emu_buffer) {
         s->edge_emu_buffer = av_malloc(9 * FFABS(s->current_frame.f->linesize[0]));
+	if (!s->edge_emu_buffer) {
+            ret = AVERROR(ENOMEM);
+            goto error;
+        }
+    }
 
     if (s->keyframe) {
         if (!s->theora) {
-- 
2.43.0