Fixes: Timeout (107sec - 75ms> Fixes: 18812/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IFF_ILBM_fuzzer-6295585225441280
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/iff.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavcodec/iff.c b/libavcodec/iff.c index 500f9bf367..5184ff0a4e 100644 --- a/libavcodec/iff.c +++ b/libavcodec/iff.c @@ -1358,6 +1358,8 @@ static void decode_delta_d(uint8_t *dst, bytestream2_seek_p(&pb, (offset / planepitch_byte) * pitch + (offset % planepitch_byte) + k * planepitch, SEEK_SET); if (opcode >= 0) { uint32_t x = bytestream2_get_be32(&gb); + if (opcode && 4 + (opcode - 1LL) * pitch > bytestream2_get_bytes_left_p(&pb)) + continue; while (opcode && bytestream2_get_bytes_left_p(&pb) > 0) { bytestream2_put_be32(&pb, x); bytestream2_skip_p(&pb, pitch - 4); -- 2.23.0 _______________________________________________ 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".
