28 lines
847 B
Diff
28 lines
847 B
Diff
From ae49d1472ec176ddc53a3a4905f91d46344386e6 Mon Sep 17 00:00:00 2001
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From: Mark Adler <zlib@madler.net>
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Date: Thu, 12 Oct 2017 19:27:59 -0700
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Subject: [PATCH] Avoid an undefined behavior of memcpy() in gzappend().
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Reference:https://github.com/madler/zlib/commit/ae49d1472ec176ddc53a3a4905f91d46344386e6
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Conflict:NA
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---
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examples/gzappend.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/examples/gzappend.c b/examples/gzappend.c
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index 662dec3..d7eea3e 100644
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--- a/examples/gzappend.c
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+++ b/examples/gzappend.c
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@@ -137,7 +137,7 @@ local void rotate(unsigned char *list, unsigned len, unsigned rot)
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/* do simple left shift by one */
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if (rot == 1) {
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tmp = *list;
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- memcpy(list, list + 1, len - 1);
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+ memmove(list, list + 1, len - 1);
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*last = tmp;
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return;
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}
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--
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2.23.0
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