Description: cfg80211: wext: avoid copying malformed SSIDs
References:
 https://marc.info/?l=linux-wireless&m=157018270915487&w=2
Notes:
 carnil> In 5.3.x fixed in 5.3.8.
Bugs:
upstream: released (5.4-rc4) [4ac2813cc867ae563a1ba5a9414bfb554e5796fa]
4.19-upstream-stable: released (4.19.81) [73c066a9552a6d33ed7de002855337d1c966e8ce]
4.9-upstream-stable: released (4.9.198) [49d84740f8a7040354ef93bf5915a4b3e651e71b]
3.16-upstream-stable: released (3.16.77) [e70efb76ea2eb9f08dc627d93d35a8e5c065346d]
sid: released (5.3.9-1)
4.19-buster-security: released (4.19.87-1)
4.9-stretch-security: released (4.9.210-1)
3.16-jessie-security: released (3.16.81-1)