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| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-02-17 00:02:04 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-03-14 23:29:51 +0100 |
| commit | cd3ab3a09b7ea19ffef559efd4aae6292e196b42 (patch) | |
| tree | 2f2d1016b24dd59bcfb79ad5d382b331eee1baee /libavcodec | |
| parent | 07de796b5d1f4db239bd986f553760b868a908f0 (diff) | |
| download | ffmpeg-cd3ab3a09b7ea19ffef559efd4aae6292e196b42.tar.gz | |
avcodec/cfhd: Fix negative shift in cfhd_decode()
Fixes: left shift of negative value -1
Fixes: 30714/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CFHD_fuzzer-4867823371419648
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec')
| -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 dfd56ae6ed..1f2ee853c1 100644 --- a/libavcodec/cfhd.c +++ b/libavcodec/cfhd.c @@ -811,7 +811,7 @@ 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 << 8; + *coeff_data |= coeff * 256; *coeff_data++ *= q; } } else { @@ -842,7 +842,7 @@ 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 << 8; + *coeff_data |= coeff * 256; *coeff_data++ *= q; } } else { |