Johannes Berg 4954601f82 nl80211: correctly validate MU-MIMO groups
Since groups 0 and 63 are invalid, we should check for those bits.
Note that the 802.11 spec specifies the *bit* order, but the CPU
doesn't care about bit order since it can't address bits, so it's
always treating BIT(0) as the lowest bit within a byte.

Reported-by: Jan Fuchs <jan.fuchs@lancom.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-05-08 11:24:34 +02:00
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