| Message ID | 20191102160601.14711-3-michael@niedermayer.cc |
|---|---|
| State | Accepted |
| Commit | cf323f4d38f5756ecdb8fb4f72c80a8069da832e |
| Headers | show |
On Sat, Nov 02, 2019 at 05:05:59PM +0100, Michael Niedermayer wrote: > Fixes: left shift of negative value -3 > Fixes: 18518/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMAVOICE_fuzzer-6560514359951360 > > Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> > --- > libavcodec/wmavoice.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) will apply [...]
diff --git a/libavcodec/wmavoice.c b/libavcodec/wmavoice.c index 68bb65986e..14e08c263e 100644 --- a/libavcodec/wmavoice.c +++ b/libavcodec/wmavoice.c @@ -1520,7 +1520,7 @@ static int synth_frame(AVCodecContext *ctx, GetBitContext *gb, int frame_idx, /* "pitch-diff-per-sample" for calculation of pitch per sample */ s->pitch_diff_sh16 = - ((cur_pitch_val - s->last_pitch_val) << 16) / MAX_FRAMESIZE; + (cur_pitch_val - s->last_pitch_val) * (1 << 16) / MAX_FRAMESIZE; } /* Global gain (if silence) and pitch-adaptive window coordinates */
Fixes: left shift of negative value -3 Fixes: 18518/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMAVOICE_fuzzer-6560514359951360 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavcodec/wmavoice.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)