Commit e664c2cc authored Feb 17, 2015 by Matthew Thode Committed by Sasha Levin Mar 14, 2015

net: reject creation of netdev names with colons



[ Upstream commit a4176a9391868bfa87705bcd2e3b49e9b9dd2996 ]

colons are used as a separator in netdev device lookup in dev_ioctl.c

Specific functions are SIOCGIFTXQLEN SIOCETHTOOL SIOCSIFNAME

Signed-off-by: Matthew Thode <mthode@mthode.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>

parent 4946f9d2

net/core/dev.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -943,7 +943,7 @@ bool dev_valid_name(const char *name)
		return false;

		while (*name) {
		if (name == '/' \|\| isspace(name))
		if (name == '/' \|\| name == ':' \|\| isspace(*name))
		return false;
		name++;
		}