[RTNETLINK]: Fix netdevice name corruption When changing a device by ifindex without including a IFLA_IFNAME attribute, the ifname variable contains random garbage and is used to change the device name. Signed-off-by: Patrick McHardy --- commit bc3417f679c035e4296cd34f6a55d6b9215764fc tree e43f52402d79560cbed73a769f4def3e761e7a03 parent 6ddbd02eb61532f9af4f28912a09717ab8c71d8a author Patrick McHardy Sat, 09 Sep 2006 16:18:12 +0200 committer Patrick McHardy Sat, 09 Sep 2006 16:18:12 +0200 net/core/rtnetlink.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index 63b882a..d8e25e0 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -394,6 +394,8 @@ static int rtnl_setlink(struct sk_buff * if (tb[IFLA_IFNAME]) nla_strlcpy(ifname, tb[IFLA_IFNAME], IFNAMSIZ); + else + ifname[0] = '\0'; err = -EINVAL; ifm = nlmsg_data(nlh);