29 lines
882 B
Diff
29 lines
882 B
Diff
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From 2793769ff107d8d22dadd30c6e68cd781b569550 Mon Sep 17 00:00:00 2001
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From: Julian Smith <jules@op59.net>
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Date: Mon, 4 Nov 2019 12:30:33 +0000
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Subject: [PATCH] Bug 701819: fixed ordering in if expression to avoid
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out-of-bounds access.
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Fixes:
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./sanbin/gs -dBATCH -dNOPAUSE -r965 -sOutputFile=tmp -sDEVICE=pcx16 ../bug-701819.pdf
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---
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devices/gdevpcx.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/devices/gdevpcx.c b/devices/gdevpcx.c
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index 1735851d2..91de4abb6 100644
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--- a/devices/gdevpcx.c
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+++ b/devices/gdevpcx.c
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@@ -442,7 +442,7 @@ 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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