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| author | Michael Niedermayer <michael@niedermayer.cc> | 2023-10-20 18:20:14 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2023-11-01 16:40:20 +0100 |
| commit | 2def61778777e998e2ac538f56b8e6779b0ca8c1 (patch) | |
| tree | f8275df871e15fedda49128f4eca5dfacff1dbc4 | |
| parent | 98c2711b58ce65eae02cb2ece3a664e1119fd8fe (diff) | |
| download | ffmpeg-2def61778777e998e2ac538f56b8e6779b0ca8c1.tar.gz | |
avcodec/apedec: Fix integer overflow in predictor_decode_stereo_3950()
Fixes: signed integer overflow: 1900031961 + 553590817 cannot be represented in type 'int'
Fixes: 63061/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APE_fuzzer-5166188298371072
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/apedec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/apedec.c b/libavcodec/apedec.c index 8bfbb75b41..d31c067152 100644 --- a/libavcodec/apedec.c +++ b/libavcodec/apedec.c @@ -1284,7 +1284,7 @@ static void predictor_decode_stereo_3950(APEContext *ctx, int count) *decoded1++ = a1; if (num_passes > 1) { int32_t left = a1 - (unsigned)(a0 / 2); - int32_t right = left + a0; + int32_t right = left + (unsigned)a0; if (FFMAX(FFABS(left), FFABS(right)) > (1<<23)) { ctx->interim_mode = !interim_mode; |