28 lines
841 B
Diff
28 lines
841 B
Diff
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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putc(0xc1, file);
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} else {
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--
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2.41.0
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