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[FFmpeg-devel,4/4] avfilter/af_stereotools: round-up max size of buffer

Message ID 20231224232624.30355-4-michael@niedermayer.cc
State Accepted
Commit e6459abfadabb43cdc4c807975e1a854da23644d
Headers show
Series [FFmpeg-devel,1/4] avfilter/af_stereowiden: Round length to nearest | expand

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Context Check Description
yinshiyou/make_loongarch64 success Make finished
yinshiyou/make_fate_loongarch64 success Make fate finished
andriy/make_x86 success Make finished
andriy/make_fate_x86 success Make fate finished

Commit Message

Michael Niedermayer Dec. 24, 2023, 11:26 p.m. UTC 
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(-)
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Patch

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)