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 <mich...@niedermayer.cc> --- libavcodec/apedec.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavcodec/apedec.c b/libavcodec/apedec.c index cfcf9a06c1..1df14fa946 100644 --- a/libavcodec/apedec.c +++ b/libavcodec/apedec.c @@ -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; -- 2.23.0 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
