From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: [FFmpeg-devel] [PATCH 1/2] swscale/utils: Allocate more dithererror
Date: Sat, 17 Feb 2024 18:09:46 +0100
Message-ID: <20240217170947.25351-1-michael@niedermayer.cc> (raw)
Fixes: out of array read
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
libswscale/utils.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libswscale/utils.c b/libswscale/utils.c
index ec822ff5d92..4dc0fbfefbf 100644
--- a/libswscale/utils.c
+++ b/libswscale/utils.c
@@ -1885,7 +1885,7 @@ static av_cold int sws_init_single_context(SwsContext *c, SwsFilter *srcFilter,
}
for (i = 0; i < 4; i++)
- if (!FF_ALLOCZ_TYPED_ARRAY(c->dither_error[i], c->dstW + 2))
+ if (!FF_ALLOCZ_TYPED_ARRAY(c->dither_error[i], c->dstW + 3))
goto nomem;
c->needAlpha = (CONFIG_SWSCALE_ALPHA && isALPHA(c->srcFormat) && isALPHA(c->dstFormat)) ? 1 : 0;
--
2.17.1
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next reply other threads:[~2024-02-17 17:09 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-17 17:09 Michael Niedermayer [this message]
2024-02-17 17:09 ` [FFmpeg-devel] [PATCH 2/2] swscale/swscale: Check srcSliceH for bayer Michael Niedermayer
2024-02-21 17:29 ` [FFmpeg-devel] [PATCH 1/2] swscale/utils: Allocate more dithererror Michael Niedermayer
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