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| author | Michael Niedermayer <michael@niedermayer.cc> | 2024-04-26 05:08:38 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2024-05-06 03:00:41 +0200 |
| commit | a2ec2bd49317ab16a3c30c0824efc580ea9a8aef (patch) | |
| tree | e93a1491167a34dbfe1ee009f121bd39ab32020a /libavcodec/wavarc.c | |
| parent | 1330a73ccadd855542ac4386f75fd72ff0ab5ea1 (diff) | |
| download | ffmpeg-a2ec2bd49317ab16a3c30c0824efc580ea9a8aef.tar.gz | |
avcodec/wavarc: fix integer overflow in decode_5elp() block type 2
Fixes: signed integer overflow: 2097152000 + 107142979 cannot be represented in type 'int'
Fixes: 67919/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WAVARC_fuzzer-5955101769400320
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/wavarc.c')
| -rw-r--r-- | libavcodec/wavarc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/wavarc.c b/libavcodec/wavarc.c index b4b26958e6..93b76c43e8 100644 --- a/libavcodec/wavarc.c +++ b/libavcodec/wavarc.c @@ -689,7 +689,7 @@ static int decode_5elp(AVCodecContext *avctx, for (int o = 0; o < order; o++) sum += s->filter[ch][o] * (unsigned)samples[n + 70 - o - 1]; - samples[n + 70] += ac_out[n] + (sum >> 4); + samples[n + 70] += ac_out[n] + (unsigned)(sum >> 4); } for (int n = 0; n < 70; n++) |