30 lines
744 B
Diff
30 lines
744 B
Diff
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From dbfd84301a9316018f7c5e42ff5b3a19dd13e5c5 Mon Sep 17 00:00:00 2001
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From: modric <pioneerbtw7@163.com>
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Date: Tue, 22 Nov 2022 10:12:29 +0800
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Subject: [PATCH] sudo_rcstr_dup: Fix potential NULL pointer deref
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---
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lib/util/rcstr.c | 6 ++++--
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1 file changed, 4 insertions(+), 2 deletions(-)
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diff --git a/lib/util/rcstr.c b/lib/util/rcstr.c
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index d990a99e9..08b00bcd7 100644
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--- a/lib/util/rcstr.c
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+++ b/lib/util/rcstr.c
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@@ -49,8 +49,10 @@ sudo_rcstr_dup(const char *src)
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debug_decl(sudo_rcstr_dup, SUDO_DEBUG_UTIL);
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dst = sudo_rcstr_alloc(len);
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- memcpy(dst, src, len);
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- dst[len] = '\0';
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+ if (dst != NULL) {
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+ memcpy(dst, src, len);
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+ dst[len] = '\0';
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+ }
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debug_return_ptr(dst);
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}
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--
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2.27.0
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