[FFmpeg-devel] [PATCH 1/2] avcodec/8bps: Consider width in the minimal size check

[Michael Niedermayer]

Fixes: Timeout
Fixes: 64479/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_EIGHTBPS_fuzzer-5434435386081280

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
---
 libavcodec/8bps.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/8bps.c b/libavcodec/8bps.c
index 11b9f526b7..0060c46d09 100644
--- a/libavcodec/8bps.c
+++ b/libavcodec/8bps.c
@@ -63,7 +63,7 @@ static int decode_frame(AVCodecContext *avctx, AVFrame *frame,
     unsigned int planes = c->planes;
     int ret;
 
-    if (buf_size < planes * height * 2)
+    if (buf_size < planes * height * (2 + 2*((avctx->width+128)/129)))
         return AVERROR_INVALIDDATA;
 
     if ((ret = ff_get_buffer(avctx, frame, 0)) < 0)
-- 
2.17.1