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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-07-11 23:23:07 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-07-01 12:11:55 +0200 |
| commit | 33af0d0083d7ddcd1a763414a1670e39e43c4432 (patch) | |
| tree | fd37e877d67171bfdb50eeec94b491318c31b3e3 | |
| parent | 1e42d9c60a2ed94534a010c1a6b9c64353cbdb88 (diff) | |
| download | ffmpeg-33af0d0083d7ddcd1a763414a1670e39e43c4432.tar.gz | |
avcodec/dirac_parser: Fix overflow in dts
Fixes: signed integer overflow: -2147483648 - 1 cannot be represented in type 'int'
Fixes: 15568/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DIRAC_fuzzer-5634719611355136
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 549fcba8fc83330763ccd3cc67233037c96bc6d9)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/dirac_parser.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/dirac_parser.c b/libavcodec/dirac_parser.c index 1ade44a438..fbc7414c79 100644 --- a/libavcodec/dirac_parser.c +++ b/libavcodec/dirac_parser.c @@ -212,7 +212,7 @@ static int dirac_combine_frame(AVCodecParserContext *s, AVCodecContext *avctx, if (parse_timing_info && pu1.prev_pu_offset >= 13) { uint8_t *cur_pu = pc->buffer + pc->index - 13 - pu1.prev_pu_offset; - int pts = AV_RB32(cur_pu + 13); + int64_t pts = AV_RB32(cur_pu + 13); if (s->last_pts == 0 && s->last_dts == 0) s->dts = pts - 1; else |