[PATCH 3.10 09/62] net: reject creation of netdev names with colons
From: Greg Kroah-Hartman
Date: Mon Mar 16 2015 - 10:25:25 EST
3.10-stable review patch. If anyone has any objections, please let me know.
------------------
From: Matthew Thode <mthode@xxxxxxxxxx>
[ 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@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/core/dev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -927,7 +927,7 @@ bool dev_valid_name(const char *name)
return false;
while (*name) {
- if (*name == '/' || isspace(*name))
+ if (*name == '/' || *name == ':' || isspace(*name))
return false;
name++;
}
--
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