| Message ID | 20191029223505.20667-1-michael@niedermayer.cc |
|---|---|
| State | Accepted |
| Commit | dc3f327e7403a34c88a900f0b8de55b4afd7cf6c |
| Headers | show |
On Tue, Oct 29, 2019 at 11:35:02PM +0100, Michael Niedermayer wrote: > Fixes: signed integer overflow: 7400 + 2147482786 cannot be represented in type 'int' > Fixes: 18405/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APE_fuzzer-5708834760294400 > > Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> > --- > libavcodec/apedec.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) will apply patchset [...]
diff --git a/libavcodec/apedec.c b/libavcodec/apedec.c index 2dd197a7f2..3880e265ee 100644 --- a/libavcodec/apedec.c +++ b/libavcodec/apedec.c @@ -1271,7 +1271,7 @@ static void do_apply_filter(APEContext *ctx, int version, APEFilter *f, f->adaptcoeffs - order, order, APESIGN(*data)); res = (int)(res + (1U << (fracbits - 1))) >> fracbits; - res += *data; + res += (unsigned)*data; *data++ = res; /* Update the output history */
Fixes: signed integer overflow: 7400 + 2147482786 cannot be represented in type 'int' Fixes: 18405/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APE_fuzzer-5708834760294400 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavcodec/apedec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)