25 lines
847 B
Diff
25 lines
847 B
Diff
From 8cfcbf7dde7705c849f4f7a5acb26f79b895fffe Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Jaroslav=20Loba=C4=8Devski?= <jarlob@github.com>
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Date: Thu, 19 Oct 2023 15:57:03 +0200
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Subject: [PATCH] Fix wild address read in stbi__gif_load_next
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It seems `layers` were forgotten to include in equation.
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Fixes #1538
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---
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stb_image.h | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/stb_image.h b/stb_image.h
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index 5e807a0a6..cd09ab697 100644
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--- a/stb_image.h
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+++ b/stb_image.h
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@@ -7019,7 +7019,7 @@ static void *stbi__load_gif_main(stbi__context *s, int **delays, int *x, int *y,
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}
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memcpy( out + ((layers - 1) * stride), u, stride );
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if (layers >= 2) {
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- two_back = out - 2 * stride;
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+ two_back = out + (layers - 2) * stride;
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}
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if (delays) {
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