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mac80211_hwsim: check HWSIM_ATTR_RADIO_NAME length
Unfortunately, the nla policy was defined to have HWSIM_ATTR_RADIO_NAME as an NLA_STRING, rather than NLA_NUL_STRING, so we can't use it as a NUL-terminated string in the kernel. Rather than break the API, kasprintf() the string to a new buffer to guarantee NUL termination. Reported-by: Andrew Zaborowski <andrew.zaborowski@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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