mac80211_hwsim: check HWSIM_ATTR_RADIO_NAME length

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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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Johannes Berg 2017-02-27 17:15:28 +01:00

parent 09e0a2fe10

commit ff4dd73dd2

1 changed files with 21 additions and 7 deletions

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drivers/net/wireless/mac80211_hwsim.c

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