[FFmpeg-devel] [PATCH 1/6] avcodec/wnv1: Check for width =1

[Michael Niedermayer]

The decoder only outputs pixels for width >1 images, fail early

Fixes: Timeout
Fixes: 48298/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WNV1_fuzzer-6198626319204352

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/wnv1.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libavcodec/wnv1.c b/libavcodec/wnv1.c
index 0cf2181a48..f1223493fe 100644
--- a/libavcodec/wnv1.c
+++ b/libavcodec/wnv1.c
@@ -129,6 +129,9 @@ static av_cold int decode_init(AVCodecContext *avctx)
 
     ff_thread_once(&init_static_once, wnv1_init_static);
 
+    if (avctx->width <= 1)
+        return AVERROR_INVALIDDATA;
+
     return 0;
 }
 
-- 
2.17.1