Fixes: signed integer overflow: 9223372036854775807 + 8 cannot be represented in type 'long' Fixes: 27341/clusterfuzz-testcase-minimized-ffmpeg_dem_W64_fuzzer-5442833206738944
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavformat/wavdec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/wavdec.c b/libavformat/wavdec.c index a81f2c7a67..df6030a42d 100644 --- a/libavformat/wavdec.c +++ b/libavformat/wavdec.c @@ -666,7 +666,7 @@ static int64_t find_guid(AVIOContext *pb, const uint8_t guid1[16]) while (!avio_feof(pb)) { avio_read(pb, guid, 16); size = avio_rl64(pb); - if (size <= 24) + if (size <= 24 || size > INT64_MAX - 8) return AVERROR_INVALIDDATA; if (!memcmp(guid, guid1, 16)) return size; -- 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".
