ffmpeg-5/0001-avfilter-af_stereowiden-Check-length.patch

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From 50f0f8c53c818f73fe2d752708e2fa9d2a2d8a07 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michael@niedermayer.cc>
Date: Sat, 23 Dec 2023 04:03:01 +0100
Subject: [PATCH] avfilter/af_stereowiden: Check length
References: https://bugzilla.opensuse.org/1223437
References: CVE-2023-51794
Fixes: out of array access
Fixes: tickets/10746/poc13ffmpeg
Found-by: Zeng Yunxiang
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
libavfilter/af_stereowiden.c | 2 ++
1 file changed, 2 insertions(+)
Index: ffmpeg-4.4.4/libavfilter/af_stereowiden.c
===================================================================
--- ffmpeg-4.4.4.orig/libavfilter/af_stereowiden.c
+++ ffmpeg-4.4.4/libavfilter/af_stereowiden.c
@@ -75,6 +75,8 @@ static int config_input(AVFilterLink *in
s->length = s->delay * inlink->sample_rate / 1000;
s->length *= 2;
+ if (s->length == 0)
+ return AVERROR(EINVAL);
s->buffer = av_calloc(s->length, sizeof(*s->buffer));
if (!s->buffer)
return AVERROR(ENOMEM);