[FFmpeg-devel] [PATCH] avcodec/vvc/thread: Check frame to be non NULL

Nuo Mi nuomi2021 at gmail.com
Mon Oct 14 18:25:32 EEST 2024


Fixes: NULL pointer dereference
Fixes: 71303/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VVC_fuzzer-4875859050168320

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

diff --git a/libavcodec/vvc/dec.c b/libavcodec/vvc/dec.c
index edf2607f50..522fa8416e 100644
--- a/libavcodec/vvc/dec.c
+++ b/libavcodec/vvc/dec.c
@@ -1000,7 +1000,7 @@ static int vvc_decode_frame(AVCodecContext *avctx, AVFrame *output,
     if (ret < 0)
         return ret;
 
-    if (!fc->ft)
+    if (!fc->ft || !fc->ref)
         return avpkt->size;
 
     ret = submit_frame(s, fc, output, got_output);
-- 
2.34.1



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