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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-10 23:48:30 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-14 00:21:49 +0200 |
| commit | 4a974cb59501d9da0c33c41f93eb596dc6cdc3fb (patch) | |
| tree | 0e67100a77ba5b2243b39b50f9d8587e0d5fe474 | |
| parent | 924a2dd57a04792fae1dce1626fafb223fb97201 (diff) | |
| download | ffmpeg-4a974cb59501d9da0c33c41f93eb596dc6cdc3fb.tar.gz | |
avcodec/pixlet: Fix runtime error: signed integer overflow: 436207616 * -5160230545260541 cannot be represented in type 'long'
Fixes: 1462/clusterfuzz-testcase-minimized-6558894463647744
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 60765cc42e3eb4a1193ef352a89946113a6e5802)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/pixlet.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/pixlet.c b/libavcodec/pixlet.c index c4f7597866..419fef6102 100644 --- a/libavcodec/pixlet.c +++ b/libavcodec/pixlet.c @@ -256,7 +256,7 @@ static int read_high_coeffs(AVCodecContext *avctx, uint8_t *src, int16_t *dst, i j = 0; dst += stride; } - state += (int64_t)d * yflag - (d * state >> 8); + state += (int64_t)d * yflag - ((int64_t)(d * (uint64_t)state) >> 8); flag = 0; |