ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Sat Nov 2 15:15:46 2019 +0100| [cf323f4d38f5756ecdb8fb4f72c80a8069da832e] | committer: Michael Niedermayer
avcodec/wmavoice: Fix integer overflow in synth_frame() 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 <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=cf323f4d38f5756ecdb8fb4f72c80a8069da832e --- libavcodec/wmavoice.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/wmavoice.c b/libavcodec/wmavoice.c index 4c147fe04f..5dd9b3dbb7 100644 --- a/libavcodec/wmavoice.c +++ b/libavcodec/wmavoice.c @@ -1523,7 +1523,7 @@ 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 */ _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
