netdev - [PATCH]ipv6:remove useless check

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 14 Apr 2009 09:51:00 +0800
From:	Yang Hongyang <yanghy@...fujitsu.com>
To:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	David Miller <davem@...emloft.net>
Subject: [PATCH]ipv6:remove useless check

After switch (rthdr->type) {...},the check below is completely useless.Because:
if the type is 2,then hdrlen must be 2 and segments_left must be 1,clearly the
check is redundant;if the type is not 2,then goto sticky_done,the check is useless
too.

Signed-off-by: Yang Hongyang <yanghy@...fujitsu.com>

---
 net/ipv6/ipv6_sockglue.c |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)

diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index d31df0f..a7fdf9a 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -380,10 +380,6 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
 			default:
 				goto sticky_done;
 			}
-
-			if ((rthdr->hdrlen & 1) ||
-			    (rthdr->hdrlen >> 1) != rthdr->segments_left)
-				goto sticky_done;
 		}
 
 		retv = 0;
-- 
1.6.0.3

-- 
Regards
Yang Hongyang
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html