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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-07-05 00:05:11 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-07-19 02:50:19 +0200 |
| commit | 965f15551fb07f1c0be37fd369b0ab4462da0965 (patch) | |
| tree | 00e8be3dd974cf85a66da9b2723203cdadf8e00e /libavcodec | |
| parent | 0837678cbd332489cd89700df22d0a8da0e3721c (diff) | |
| download | ffmpeg-965f15551fb07f1c0be37fd369b0ab4462da0965.tar.gz | |
avcodec/h264_slice: Fix signed integer overflow
Fixes: runtime error: signed integer overflow: 26 + 2147483644 cannot be represented in type 'int'
Fixes: 2456/clusterfuzz-testcase-minimized-4822695051001856
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 7592d97f10134422d4509ab1287796af70e003ba)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/h264_slice.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/h264_slice.c b/libavcodec/h264_slice.c index 474400ba2f..d3f1360359 100644 --- a/libavcodec/h264_slice.c +++ b/libavcodec/h264_slice.c @@ -1667,7 +1667,7 @@ int ff_h264_decode_slice_header(H264Context *h, H264SliceContext *sl) } sl->last_qscale_diff = 0; - tmp = pps->init_qp + get_se_golomb(&sl->gb); + tmp = pps->init_qp + (unsigned)get_se_golomb(&sl->gb); if (tmp > 51 + 6 * (sps->bit_depth_luma - 8)) { av_log(h->avctx, AV_LOG_ERROR, "QP %u out of range\n", tmp); return AVERROR_INVALIDDATA; |