Fixes: assertion failure Fixes: 14246/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_JPEG2000_fuzzer-5758393601490944
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/jpeg2000dec.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/libavcodec/jpeg2000dec.c b/libavcodec/jpeg2000dec.c index 7749c980e5..9198cf87cb 100644 --- a/libavcodec/jpeg2000dec.c +++ b/libavcodec/jpeg2000dec.c @@ -1171,7 +1171,10 @@ static int jpeg2000_decode_packets_po_iteration(Jpeg2000DecoderContext *s, Jpeg2 step_x = FFMIN(step_x, rlevel->log2_prec_width + reducedresno); step_y = FFMIN(step_y, rlevel->log2_prec_height + reducedresno); } - av_assert0(step_x < 32 && step_y < 32); + if (step_x >= 31 || step_y >= 31){ + avpriv_request_sample(s->avctx, "CPRL with large step"); + return AVERROR_PATCHWELCOME; + } step_x = 1<<step_x; step_y = 1<<step_y; -- 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".
