avcodec/vp8_parser: Do not leave data/size uninitialized
authorMichael Niedermayer <michael@niedermayer.cc>
Fri, 6 Jul 2018 10:01:46 +0000 (12:01 +0200)
committerMichael Niedermayer <michael@niedermayer.cc>
Sat, 7 Jul 2018 10:09:34 +0000 (12:09 +0200)
This is identical to what the VP9 parser does

Fixes: 9215/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_LIBVPX_VP8_fuzzer-5768227253649408
Fixes: out of memory access

This may also fix oss fuzz issue 9212

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavcodec/vp8_parser.c

index 609f507..e2d91b2 100644 (file)
@@ -28,6 +28,9 @@ static int parse(AVCodecParserContext *s,
     unsigned int frame_type;
     unsigned int profile;
 
+    *poutbuf      = buf;
+    *poutbuf_size = buf_size;
+
     if (buf_size < 3)
         return buf_size;