Fixes: out of array access Fixes: 32264/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_LSCR_fuzzer-6684504010915840
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/lscrdec.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/libavcodec/lscrdec.c b/libavcodec/lscrdec.c index f5cfe1fa04..042da84bf9 100644 --- a/libavcodec/lscrdec.c +++ b/libavcodec/lscrdec.c @@ -76,6 +76,10 @@ static int decode_idat(LSCRContext *s, int length) int ret; s->zstream.avail_in = FFMIN(length, bytestream2_get_bytes_left(&s->gb)); s->zstream.next_in = s->gb.buffer; + + if (length <= 0) + return AVERROR_INVALIDDATA; + bytestream2_skip(&s->gb, length); /* decode one line if possible */ -- 2.17.1 _______________________________________________ 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".
