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SDL v1.2 was discovered to contain a use-after-free via the XFree function at /src/video/x11/SDL_x11yuv.c. https://github.com/advisories/GHSA-wr7h-5wm3-p3h4 Signed-off-by: Peter Korsgaard <peter@korsgaard.com> Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
29 lines
1.0 KiB
Diff
29 lines
1.0 KiB
Diff
From d7e00208738a0bc6af302723fe64908ac35b777b Mon Sep 17 00:00:00 2001
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From: Ozkan Sezer <sezeroz@gmail.com>
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Date: Sat, 18 Jun 2022 14:55:00 +0300
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Subject: [PATCH] SDL_x11yuv.c: fix possible use-after-free
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Fixes: https://github.com/libsdl-org/SDL-1.2/issues/863
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Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
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---
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src/video/x11/SDL_x11yuv.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/src/video/x11/SDL_x11yuv.c b/src/video/x11/SDL_x11yuv.c
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index 62698dfd..0d5754e3 100644
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--- a/src/video/x11/SDL_x11yuv.c
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+++ b/src/video/x11/SDL_x11yuv.c
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@@ -374,8 +374,8 @@ SDL_Overlay *X11_CreateYUVOverlay(_THIS, int width, int height, Uint32 format, S
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#ifdef PITCH_WORKAROUND
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if ( hwdata->image != NULL && hwdata->image->pitches[0] != (width*bpp) ) {
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/* Ajust overlay width according to pitch */
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- XFree(hwdata->image);
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width = hwdata->image->pitches[0] / bpp;
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+ XFree(hwdata->image);
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hwdata->image = SDL_NAME(XvCreateImage)(GFX_Display, xv_port, format,
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0, width, height);
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}
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--
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2.30.2
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