ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Sun Jul 3 14:19:54 2022 +0200| [78b95530f0a1f04864079614b251b765b1ee77ec] | committer: Michael Niedermayer
avcodec/ffv1dec: Check for min packet size Fixes: Timeout Fixes: 48619/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FFV1_fuzzer-5793597923917824 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=78b95530f0a1f04864079614b251b765b1ee77ec --- libavcodec/ffv1dec.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/libavcodec/ffv1dec.c b/libavcodec/ffv1dec.c index 7731c15c87..01ddcaa512 100644 --- a/libavcodec/ffv1dec.c +++ b/libavcodec/ffv1dec.c @@ -879,6 +879,14 @@ static int decode_frame(AVCodecContext *avctx, AVFrame *rframe, p->key_frame = 0; } + if (f->ac != AC_GOLOMB_RICE) { + if (buf_size < avctx->width * avctx->height / (128*8)) + return AVERROR_INVALIDDATA; + } else { + if (buf_size < avctx->height / 8) + return AVERROR_INVALIDDATA; + } + ret = ff_thread_get_ext_buffer(avctx, &f->picture, AV_GET_BUFFER_FLAG_REF); if (ret < 0) return ret; _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
