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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-05-23 23:17:35 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-06-12 12:01:26 +0200 |
| commit | 4896fa18add7636ea9986edde51493331f1fb01e (patch) | |
| tree | 43da729760dec98f78d6a7da50403bc5e1f42d0a | |
| parent | 8f4963ad25ac6c71c126ac90c240b1f88ebf0312 (diff) | |
| download | ffmpeg-4896fa18add7636ea9986edde51493331f1fb01e.tar.gz | |
avcodec/h264_parse: Use 64bit for expectedpoc and expected_delta_per_poc_cycle
Fixes: signed integer overflow: -2142516591 + -267814575 cannot be represented in type 'int'
Fixes: 14450/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_H264_fuzzer-5716105319940096
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/h264_parse.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libavcodec/h264_parse.c b/libavcodec/h264_parse.c index a075443d17..ac31f54e07 100644 --- a/libavcodec/h264_parse.c +++ b/libavcodec/h264_parse.c @@ -301,7 +301,8 @@ int ff_h264_init_poc(int pic_field_poc[2], int *pic_poc, if (picture_structure == PICT_FRAME) field_poc[1] += pc->delta_poc_bottom; } else if (sps->poc_type == 1) { - int abs_frame_num, expected_delta_per_poc_cycle, expectedpoc; + int abs_frame_num; + int64_t expected_delta_per_poc_cycle, expectedpoc; int i; if (sps->poc_cycle_length != 0) |