netdev - [PATCH net-next v1] tipc: make sure IPv6 header fits in skb headroom

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:	Mon, 14 Mar 2016 09:43:52 +0100
From:	Richard Alpe <richard.alpe@...csson.com>
To:	<netdev@...r.kernel.org>
CC:	<tipc-discussion@...ts.sourceforge.net>,
	Richard Alpe <richard.alpe@...csson.com>
Subject: [PATCH net-next v1] tipc: make sure IPv6 header fits in skb headroom

Expand headroom further in order to be able to fit the larger IPv6
header. Prior to this patch this caused a skb under panic for certain
tipc packets when using IPv6 UDP bearer(s).

Signed-off-by: Richard Alpe <richard.alpe@...csson.com>
Acked-by: Jon Maloy <jon.maloy@...csson.com>
---
 net/tipc/udp_media.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/tipc/udp_media.c b/net/tipc/udp_media.c
index 49b3c2e..6364cff 100644
--- a/net/tipc/udp_media.c
+++ b/net/tipc/udp_media.c
@@ -53,7 +53,7 @@
 /* IANA assigned UDP port */
 #define UDP_PORT_DEFAULT	6118
 
-#define UDP_MIN_HEADROOM        28
+#define UDP_MIN_HEADROOM        48
 
 /**
  * struct udp_media_addr - IP/UDP addressing information
-- 
2.1.4