forked from jengelh/ffmpeg-5
Jan Engelhardt
b8335667a6
[boo#1223437, CVE-2023-51794] OBS-URL: https://build.opensuse.org/package/show/multimedia:libs/ffmpeg-5?expand=0&rev=94
30 lines
1.0 KiB
Diff
30 lines
1.0 KiB
Diff
From 50f0f8c53c818f73fe2d752708e2fa9d2a2d8a07 Mon Sep 17 00:00:00 2001
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From: Michael Niedermayer <michael@niedermayer.cc>
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Date: Sat, 23 Dec 2023 04:03:01 +0100
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Subject: [PATCH] avfilter/af_stereowiden: Check length
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References: https://bugzilla.opensuse.org/1223437
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References: CVE-2023-51794
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Fixes: out of array access
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Fixes: tickets/10746/poc13ffmpeg
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Found-by: Zeng Yunxiang
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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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---
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libavfilter/af_stereowiden.c | 2 ++
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1 file changed, 2 insertions(+)
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Index: ffmpeg-4.4.4/libavfilter/af_stereowiden.c
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===================================================================
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--- ffmpeg-4.4.4.orig/libavfilter/af_stereowiden.c
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+++ ffmpeg-4.4.4/libavfilter/af_stereowiden.c
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@@ -75,6 +75,8 @@ static int config_input(AVFilterLink *in
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s->length = s->delay * inlink->sample_rate / 1000;
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s->length *= 2;
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+ if (s->length == 0)
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+ return AVERROR(EINVAL);
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s->buffer = av_calloc(s->length, sizeof(*s->buffer));
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if (!s->buffer)
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return AVERROR(ENOMEM);
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