On 3/31/19, Michael Niedermayer <mich...@niedermayer.cc> wrote: > 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".
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