forked from pool/ffmpeg-5
Jan Engelhardt
c7d526a909
OBS-URL: https://build.opensuse.org/package/show/multimedia:libs/ffmpeg-5?expand=0&rev=84
57 lines
2.7 KiB
Diff
57 lines
2.7 KiB
Diff
From 2d9ed64859c9887d0504cd71dbd5b2c15e14251a Mon Sep 17 00:00:00 2001
|
|
From: Paul B Mahol <onemda@gmail.com>
|
|
Date: Sat, 25 Nov 2023 12:54:28 +0100
|
|
Subject: [PATCH] avfilter/af_dialoguenhance: fix overreads
|
|
References: https://bugzilla.opensuse.org/1222730
|
|
References: CVE-2023-49528
|
|
|
|
---
|
|
libavfilter/af_dialoguenhance.c | 17 +++++++++--------
|
|
1 file changed, 9 insertions(+), 8 deletions(-)
|
|
|
|
diff --git a/libavfilter/af_dialoguenhance.c b/libavfilter/af_dialoguenhance.c
|
|
index 1762ea7cde..29c8ab10a7 100644
|
|
--- a/libavfilter/af_dialoguenhance.c
|
|
+++ b/libavfilter/af_dialoguenhance.c
|
|
@@ -96,12 +96,12 @@ static int config_input(AVFilterLink *inlink)
|
|
if (!s->window)
|
|
return AVERROR(ENOMEM);
|
|
|
|
- s->in_frame = ff_get_audio_buffer(inlink, s->fft_size * 4);
|
|
- s->center_frame = ff_get_audio_buffer(inlink, s->fft_size * 4);
|
|
- s->out_dist_frame = ff_get_audio_buffer(inlink, s->fft_size * 4);
|
|
- s->windowed_frame = ff_get_audio_buffer(inlink, s->fft_size * 4);
|
|
- s->windowed_out = ff_get_audio_buffer(inlink, s->fft_size * 4);
|
|
- s->windowed_prev = ff_get_audio_buffer(inlink, s->fft_size * 4);
|
|
+ s->in_frame = ff_get_audio_buffer(inlink, (s->fft_size + 2) * 2);
|
|
+ s->center_frame = ff_get_audio_buffer(inlink, (s->fft_size + 2) * 2);
|
|
+ s->out_dist_frame = ff_get_audio_buffer(inlink, (s->fft_size + 2) * 2);
|
|
+ s->windowed_frame = ff_get_audio_buffer(inlink, (s->fft_size + 2) * 2);
|
|
+ s->windowed_out = ff_get_audio_buffer(inlink, (s->fft_size + 2) * 2);
|
|
+ s->windowed_prev = ff_get_audio_buffer(inlink, (s->fft_size + 2) * 2);
|
|
if (!s->in_frame || !s->windowed_out || !s->windowed_prev ||
|
|
!s->out_dist_frame || !s->windowed_frame || !s->center_frame)
|
|
return AVERROR(ENOMEM);
|
|
@@ -250,6 +250,7 @@ static int de_stereo(AVFilterContext *ctx, AVFrame *out)
|
|
float *right_osamples = (float *)out->extended_data[1];
|
|
float *center_osamples = (float *)out->extended_data[2];
|
|
const int offset = s->fft_size - s->overlap;
|
|
+ const int nb_samples = FFMIN(s->overlap, s->in->nb_samples);
|
|
float vad;
|
|
|
|
// shift in/out buffers
|
|
@@ -258,8 +259,8 @@ static int de_stereo(AVFilterContext *ctx, AVFrame *out)
|
|
memmove(left_out, &left_out[s->overlap], offset * sizeof(float));
|
|
memmove(right_out, &right_out[s->overlap], offset * sizeof(float));
|
|
|
|
- memcpy(&left_in[offset], left_samples, s->overlap * sizeof(float));
|
|
- memcpy(&right_in[offset], right_samples, s->overlap * sizeof(float));
|
|
+ memcpy(&left_in[offset], left_samples, nb_samples * sizeof(float));
|
|
+ memcpy(&right_in[offset], right_samples, nb_samples * sizeof(float));
|
|
memset(&left_out[offset], 0, s->overlap * sizeof(float));
|
|
memset(&right_out[offset], 0, s->overlap * sizeof(float));
|
|
|
|
--
|
|
2.44.0
|
|
|