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avcodec/flac_parser: Make expected_frame_num, expected_sample_num 64bit

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Fixes: Integer overflow
Fixes: 17199/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FLAC_fuzzer-5696145187143680

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2019-09-19 16:28:57 +02:00
parent 6023b9fbfe
commit c552c3ef70
1 changed files with 1 additions and 1 deletions
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libavcodec/flac_parser.c
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@ -313,7 +313,7 @@ static int check_header_mismatch(FLACParseContext *fpc,
(child_fi->frame_or_sample_num (child_fi->frame_or_sample_num
!= header_fi->frame_or_sample_num + 1)) { != header_fi->frame_or_sample_num + 1)) {
FLACHeaderMarker *curr; FLACHeaderMarker *curr;
int expected_frame_num, expected_sample_num; int64_t expected_frame_num, expected_sample_num;
/* If there are frames in the middle we expect this deduction, /* If there are frames in the middle we expect this deduction,
as they are probably valid and this one follows it */ as they are probably valid and this one follows it */