From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Mon, 18 Nov 2024 04:28:27 +0000 (+0900)
Subject: ndisc-option: use memcpy_safe() at one more place
X-Git-Tag: v257-rc3~77^2~4
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c8ddd5ff72453876b360e7580cc386945b79f5e9;p=thirdparty%2Fsystemd.git

ndisc-option: use memcpy_safe() at one more place

As 'len' may be 8.

Follow-up for a163404cc88914142ef8bbfaab0eb39d1a990c02.
---

diff --git a/src/libsystemd-network/ndisc-option.c b/src/libsystemd-network/ndisc-option.c
index d784ffb3ff0..3aab51f51bc 100644
--- a/src/libsystemd-network/ndisc-option.c
+++ b/src/libsystemd-network/ndisc-option.c
@@ -750,7 +750,7 @@ static int ndisc_option_parse_route(Set **options, size_t offset, size_t len, co
         usec_t lifetime = unaligned_be32_sec_to_usec(opt + 4, /* max_as_infinity = */ true);
 
         struct in6_addr prefix;
-        memcpy(&prefix, opt + 8, len - 8);
+        memcpy_safe(&prefix, opt + 8, len - 8);
         in6_addr_mask(&prefix, prefixlen);
 
         return ndisc_option_add_route(options, offset, preference, prefixlen, &prefix, lifetime);