net: reject creation of netdev names with colons
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>
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@ -946,7 +946,7 @@ bool dev_valid_name(const char *name)
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return false;
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while (*name) {
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if (*name == '/' || isspace(*name))
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if (*name == '/' || *name == ':' || isspace(*name))
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return false;
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name++;
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}
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