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27 lines
845 B
27 lines
845 B
From d81b82c70bc1fb9991bb95f1201abb5dea55f57f Mon Sep 17 00:00:00 2001 |
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From: Chris Liddell <chris.liddell@artifex.com> |
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Date: Mon, 17 Jul 2023 14:06:37 +0100 |
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Subject: [PATCH] Bug 706897: Copy pcx buffer overrun fix from |
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devices/gdevpcx.c |
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Bounds check the buffer, before dereferencing the pointer. |
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--- |
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base/gdevdevn.c | 2 +- |
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1 file changed, 1 insertion(+), 1 deletion(-) |
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diff --git a/base/gdevdevn.c b/base/gdevdevn.c |
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index 7b14d9c71..6351fb77a 100644 |
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--- a/base/gdevdevn.c |
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+++ b/base/gdevdevn.c |
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@@ -1983,7 +1983,7 @@ devn_pcx_write_rle(const byte * from, const byte * end, int step, gp_file * file |
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byte data = *from; |
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from += step; |
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- if (data != *from || from == end) { |
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+ if (from >= end || data != *from) { |
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if (data >= 0xc0) |
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gp_fputc(0xc1, file); |
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} else { |
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-- |
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2.41.0 |
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