Fixes: Timeout (12sec -> 32ms) Fixes: 16078/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CINEPAK_fuzzer-5695832885559296
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/cinepak.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavcodec/cinepak.c b/libavcodec/cinepak.c index aeb15de0ed..62eb794332 100644 --- a/libavcodec/cinepak.c +++ b/libavcodec/cinepak.c @@ -356,6 +356,9 @@ static int cinepak_predecode_check (CinepakContext *s) if (s->size < 10 + s->sega_film_skip_bytes + num_strips * 12) return AVERROR_INVALIDDATA; + if (s->size < (s->avctx->width * s->avctx->height) / (4*4*8)) + return AVERROR_INVALIDDATA; + if (num_strips) { const uint8_t *data = s->data + 10 + s->sega_film_skip_bytes; int strip_size = AV_RB24 (data + 1); -- 2.22.0 _______________________________________________ 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".
