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
| ||
|
Message-Id: <1494331922-16451-1-git-send-email-yotamg@mellanox.com> Date: Tue, 9 May 2017 15:12:02 +0300 From: Yotam Gigi <yotamg@...lanox.com> To: davem@...emloft.net, zhangshengju@...s.chinamobile.com, roopa@...ulusnetworks.com, sd@...asysnail.net, bblanco@...mgrid.com, minipli@...glemail.com, tklauser@...tanz.ch, nogahf@...lanox.com, moshe@...lanox.com, rshearma@...cade.com, daniel@...earbox.net, netdev@...r.kernel.org Cc: Yotam Gigi <yotamg@...lanox.com>, David Ahern <dsa@...ulusnetworks.com> Subject: [PATCH net] rtnetlink: Fix the IFLA_PHYS_PORT_NAME TLV to include terminating NULL The IFLA_PHYS_PORT_NAME rtnetlink TLV length does not include the terminating NULL character, which is different from other string typed TLVs. Due to the fact that libnl checks for the terminating NULL in every string typed attribute, it crashes on every RTM_GETLINK response on drivers that implement ndo_get_phys_port_name. Make the fill_phys_port_name function include the terminating NULL in the TLV size by using the nla_put_string helper function. Fixes: db24a9044ee1 ("net: add support for phys_port_name") Signed-off-by: Yotam Gigi <yotamg@...lanox.com> Cc: David Ahern <dsa@...ulusnetworks.com> Reviewed-by: Ido Schimmel <idosch@...lanox.com> Acked-by: Jiri Pirko <jiri@...lanox.com> --- Please consider this for stable too. Thanks! --- net/core/rtnetlink.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index c4e84c5..69daf39 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -1056,7 +1056,7 @@ static int rtnl_phys_port_name_fill(struct sk_buff *skb, struct net_device *dev) return err; } - if (nla_put(skb, IFLA_PHYS_PORT_NAME, strlen(name), name)) + if (nla_put_string(skb, IFLA_PHYS_PORT_NAME, name)) return -EMSGSIZE; return 0; -- 2.4.11
Powered by blists - more mailing lists