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| author | Michael Niedermayer <michael@niedermayer.cc> | 2022-01-17 14:16:39 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2022-03-28 23:18:55 +0200 |
| commit | f1ae88029830e64d348a7ae86a5f12babe0afcb4 (patch) | |
| tree | 74a1f62d5500538fbd87d2710f7f283af3b9a5bd | |
| parent | 911d7f167c30f27a042b8558dfcf012b3c20e858 (diff) | |
| download | ffmpeg-f1ae88029830e64d348a7ae86a5f12babe0afcb4.tar.gz | |
avcodec/cfhd: Avoid signed integer overflow in coeff
Fixes: signed integer overflow: 15244032 * 256 cannot be represented in type 'int'
Fixes: 43504/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CFHD_fuzzer-4865014842916864
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 cd6ac013a00373126bf3d313743d39b5edd5428a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/cfhd.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/cfhd.c b/libavcodec/cfhd.c index 008a6360b6..ac7826250f 100644 --- a/libavcodec/cfhd.c +++ b/libavcodec/cfhd.c @@ -838,7 +838,7 @@ static int cfhd_decode(AVCodecContext *avctx, void *data, int *got_frame, const uint16_t q = s->quantisation; for (i = 0; i < run; i++) { - *coeff_data |= coeff * 256; + *coeff_data |= coeff * 256U; *coeff_data++ *= q; } } else { @@ -869,7 +869,7 @@ static int cfhd_decode(AVCodecContext *avctx, void *data, int *got_frame, const uint16_t q = s->quantisation; for (i = 0; i < run; i++) { - *coeff_data |= coeff * 256; + *coeff_data |= coeff * 256U; *coeff_data++ *= q; } } else { |