Fixes: OOM
Fixes: 26168/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_NOTCHLC_fuzzer-6019839015256064
Equation is based on LZ4_COMPRESSBOUND from lz4.h
Suggested-by: Paul
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
bytestream2_init(gb, s->lzf_buffer, uncompressed_size);
} else if (s->format == 1) {
+ unsigned remaining = bytestream2_get_bytes_left(gb);
+
+ if (remaining > 0x7E000000U || remaining + remaining/255 + 16 < uncompressed_size)
+ return AVERROR_INVALIDDATA;
+
av_fast_padded_malloc(&s->uncompressed_buffer, &s->uncompressed_size,
uncompressed_size);
if (!s->uncompressed_buffer)