Fixes: fuzzer timeout Fixes: 65253/clusterfuzz-testcase-minimized-ffmpeg_BSF_VVC_MP4TOANNEXB_fuzzer-4972412487467008
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <[email protected]> Signed-off-by: Andreas Rheinhardt <[email protected]> --- libavcodec/bsf/vvc_mp4toannexb.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/libavcodec/bsf/vvc_mp4toannexb.c b/libavcodec/bsf/vvc_mp4toannexb.c index 25c3726918..36bdae8f49 100644 --- a/libavcodec/bsf/vvc_mp4toannexb.c +++ b/libavcodec/bsf/vvc_mp4toannexb.c @@ -155,10 +155,11 @@ static int vvc_extradata_to_annexb(AVBSFContext *ctx) } for (j = 0; j < cnt; j++) { - int nalu_len = bytestream2_get_be16(&gb); + const int nalu_len = bytestream2_get_be16(&gb); - if (4 + AV_INPUT_BUFFER_PADDING_SIZE + nalu_len > - SIZE_MAX - new_extradata_size) { + if (!nalu_len || + nalu_len > bytestream2_get_bytes_left(&gb) || + 4 + AV_INPUT_BUFFER_PADDING_SIZE + nalu_len > SIZE_MAX - new_extradata_size) { ret = AVERROR_INVALIDDATA; goto fail; } -- 2.25.1 _______________________________________________ ffmpeg-devel mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
