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Date: Tue, 05 May 2015 02:16:39 +0100
From: Ben Hutchings <ben@...adent.org.uk>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC: akpm@...ux-foundation.org, "Matthew Thode" <mthode@...ode.org>,
"David S. Miller" <davem@...emloft.net>
Subject: [PATCH 3.2 195/221] net: reject creation of netdev names with colons
3.2.69-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Matthew Thode <mthode@...ode.org>
[ 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@...ode.org>
Signed-off-by: David S. Miller <davem@...emloft.net>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
net/core/dev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -859,7 +859,7 @@ int dev_valid_name(const char *name)
return 0;
while (*name) {
- if (*name == '/' || isspace(*name))
+ if (*name == '/' || *name == ':' || isspace(*name))
return 0;
name++;
}
--
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