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From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Cc: Paul B Mahol <onemda@gmail.com>
Subject: [FFmpeg-devel] [PATCH 4/4] avfilter/af_stereotools: round-up max size of buffer
Date: Mon, 25 Dec 2023 00:26:24 +0100
Message-ID: <20231224232624.30355-4-michael@niedermayer.cc> (raw)
In-Reply-To: <20231224232624.30355-1-michael@niedermayer.cc>

From: Paul B Mahol <onemda@gmail.com>

Fixes: out of array access
Fixes: tickets/10747/poc14ffmpeg

Found-by: Zeng Yunxiang and Song Jiaxuan
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 libavfilter/af_stereotools.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavfilter/af_stereotools.c b/libavfilter/af_stereotools.c
index 4bcd696cf90..915edecc539 100644
--- a/libavfilter/af_stereotools.c
+++ b/libavfilter/af_stereotools.c
@@ -119,7 +119,7 @@ static int config_input(AVFilterLink *inlink)
     AVFilterContext *ctx = inlink->dst;
     StereoToolsContext *s = ctx->priv;
 
-    s->length = FFALIGN(inlink->sample_rate / 10, 2);
+    s->length = FFALIGN((inlink->sample_rate + 9) / 10, 2);
     if (!s->buffer)
         s->buffer = av_calloc(s->length, sizeof(*s->buffer));
     if (!s->buffer)
-- 
2.17.1

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  parent reply	other threads:[~2023-12-24 23:26 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-12-24 23:26 [FFmpeg-devel] [PATCH 1/4] avfilter/af_stereowiden: Round length to nearest Michael Niedermayer
2023-12-24 23:26 ` [FFmpeg-devel] [PATCH 2/4] avfilter/avf_showspectrum: fix off by 1 error Michael Niedermayer
2023-12-24 23:26 ` [FFmpeg-devel] [PATCH 3/4] avfilter/vf_gradfun: Do not overread last line Michael Niedermayer
2023-12-24 23:26 ` Michael Niedermayer [this message]
2023-12-29  0:19 ` [FFmpeg-devel] [PATCH 1/4] avfilter/af_stereowiden: Round length to nearest Michael Niedermayer

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