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From: Phil Sutter <phil@nwl.cc>
To: Stephen Hemminger <stephen@networkplumber.org>
Cc: netdev@vger.kernel.org
Subject: [iproute PATCH v2 2/7] xfrm_state: Make sure alg_name is NULL-terminated
Date: Thu, 17 Aug 2017 19:09:27 +0200	[thread overview]
Message-ID: <20170817170932.24659-3-phil@nwl.cc> (raw)
In-Reply-To: <20170817170932.24659-1-phil@nwl.cc>

Signed-off-by: Phil Sutter <phil@nwl.cc>
---
 ip/xfrm_state.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/ip/xfrm_state.c b/ip/xfrm_state.c
index e11c93bf1c3b5..7c0389038986e 100644
--- a/ip/xfrm_state.c
+++ b/ip/xfrm_state.c
@@ -125,7 +125,8 @@ static int xfrm_algo_parse(struct xfrm_algo *alg, enum xfrm_attr_type_t type,
 	fprintf(stderr, "warning: ALGO-NAME/ALGO-KEYMAT values will be sent to the kernel promiscuously! (verifying them isn't implemented yet)\n");
 #endif
 
-	strncpy(alg->alg_name, name, sizeof(alg->alg_name));
+	strncpy(alg->alg_name, name, sizeof(alg->alg_name) - 1);
+	alg->alg_name[sizeof(alg->alg_name) - 1] = '\0';
 
 	if (slen > 2 && strncmp(key, "0x", 2) == 0) {
 		/* split two chars "0x" from the top */
-- 
2.13.1

  parent reply	other threads:[~2017-08-17 17:14 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-17 17:09 [iproute PATCH v2 0/7] Covscan: Fixes for string termination Phil Sutter
2017-08-17 17:09 ` [iproute PATCH v2 1/7] ipntable: Make sure filter.name is NULL-terminated Phil Sutter
2017-08-18  9:19   ` David Laight
2017-08-18 10:52     ` Phil Sutter
2017-08-18 16:32       ` David Laight
2017-08-18 16:52         ` Phil Sutter
2017-08-17 17:09 ` Phil Sutter [this message]
2017-08-17 17:09 ` [iproute PATCH v2 3/7] lib/fs: Fix format string in find_fs_mount() Phil Sutter
2017-08-17 17:09 ` [iproute PATCH v2 4/7] lib/inet_proto: Make sure destination buffers are NULL-terminated Phil Sutter
2017-08-18 16:37   ` Stephen Hemminger
2017-08-18 16:55     ` Phil Sutter
2017-08-17 17:09 ` [iproute PATCH v2 5/7] lnstat_util: Simplify alloc_and_open() a bit Phil Sutter
2017-08-17 17:09 ` [iproute PATCH v2 6/7] tc/m_xt: Fix for potential string buffer overflows Phil Sutter
2017-08-17 17:09 ` [iproute PATCH v2 7/7] lib/ll_map: Make sure im->name is NULL-terminated Phil Sutter
2017-08-18 16:33   ` Stephen Hemminger

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