wifi: nl80211: reject cooked mode if it is set along with other flags

In the Linux kernel, the following vulnerability has been resolved:

wifi: nl80211: reject cooked mode if it is set along with other flags

It is possible to set both MONITOR_FLAG_COOK_FRAMES and MONITOR_FLAG_ACTIVE

flags simultaneously on the same monitor interface from the userspace. This

causes a sub-interface to be created with no IEEE80211_SDATA_IN_DRIVER bit

set because the monitor interface is in the cooked state and it takes

precedence over all other states. When the interface is then being deleted

the kernel calls WARN_ONCE() from check_sdata_in_driver() because of missing

that bit.

Fix this by rejecting MONITOR_FLAG_COOK_FRAMES if it is set along with

other flags.

Found by Linux Verification Center (linuxtesting.org) with Syzkaller.