mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-25 00:32:31 +00:00
avcodec/apedec: Fix 2 integer overflows
Fixes: signed integer overflow: 2119056926 - -134217728 cannot be represented in type 'int' Fixes: 18728/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APE_fuzzer-5747539563511808 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
parent
a9cbd25d89
commit
6e15ba2d1f
@ -1234,7 +1234,7 @@ static void predictor_decode_mono_3950(APEContext *ctx, int count)
|
||||
p->buf = p->historybuffer;
|
||||
}
|
||||
|
||||
p->filterA[0] = currentA + ((int)(p->filterA[0] * 31U) >> 5);
|
||||
p->filterA[0] = currentA + (unsigned)((int)(p->filterA[0] * 31U) >> 5);
|
||||
*(decoded0++) = p->filterA[0];
|
||||
}
|
||||
|
||||
@ -1302,7 +1302,7 @@ static void do_apply_filter(APEContext *ctx, int version, APEFilter *f,
|
||||
else
|
||||
*f->adaptcoeffs = 0;
|
||||
|
||||
f->avg += (absres - f->avg) / 16;
|
||||
f->avg += (int)(absres - (unsigned)f->avg) / 16;
|
||||
|
||||
f->adaptcoeffs[-1] >>= 1;
|
||||
f->adaptcoeffs[-2] >>= 1;
|
||||
|
Loading…
Reference in New Issue
Block a user