Fixes: Out of array access Fixes: 13984/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RSCC_fuzzer-5734128093233152
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/rscc.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/libavcodec/rscc.c b/libavcodec/rscc.c index 7d4e842cd3..4adee9d7d4 100644 --- a/libavcodec/rscc.c +++ b/libavcodec/rscc.c @@ -199,6 +199,13 @@ static int rscc_decode_frame(AVCodecContext *avctx, void *data, /* If necessary, uncompress tiles, and hijack the bytestream reader */ if (packed_tiles_size != tiles_nb * TILE_SIZE) { uLongf length = tiles_nb * TILE_SIZE; + + if (bytestream2_get_bytes_left(gbc) < packed_tiles_size) { + av_log(avctx, AV_LOG_ERROR, "compressed input truncated\n"); + ret = AVERROR_INVALIDDATA; + goto end; + } + inflated_tiles = av_malloc(length); if (!inflated_tiles) { ret = AVERROR(ENOMEM); -- 2.21.0 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
