Fixes: signed integer overflow: 3530839700044513368 + 8386093932303352321 cannot be represented in type 'long long' Fixes: 35182/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_EXR_fuzzer-5398383270428672
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/exr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/exr.c b/libavcodec/exr.c index 4648ed7d62..e7387ffd66 100644 --- a/libavcodec/exr.c +++ b/libavcodec/exr.c @@ -1014,7 +1014,7 @@ static int dwa_uncompress(EXRContext *s, const uint8_t *src, int compressed_size dc_count = AV_RL64(src + 72); ac_compression = AV_RL64(src + 80); - if (compressed_size < 88LL + lo_size + ac_size + dc_size + rle_csize) + if (compressed_size < (uint64_t)(lo_size | ac_size | dc_size | rle_csize) || compressed_size < 88LL + lo_size + ac_size + dc_size + rle_csize) return AVERROR_INVALIDDATA; bytestream2_init(&gb, src + 88, compressed_size - 88); -- 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".
