Description: wifi: iwlwifi: mvm: fix a crash when we run out of stations
References:
Notes:
 carnil> Introduced in 57974a55d995 ("wifi: iwlwifi: mvm: refactor
 carnil> iwl_mvm_mac_sta_state_common()"). Vulnerable versions: 6.4-rc1.
Bugs:
upstream: released (6.8-rc5) [b7198383ef2debe748118996f627452281cf27d7]
6.7-upstream-stable: released (6.7.6) [c12f0f4d4caf23b1bfdc2602b6b70d56bdcd6aa7]
6.6-upstream-stable: released (6.6.18) [00f4eb31b8193f6070ce24df636883f9c104ca95]
6.1-upstream-stable: N/A "Vulnerable code not present"
5.10-upstream-stable: N/A "Vulnerable code not present"
4.19-upstream-stable: N/A "Vulnerable code not present"
sid: released (6.7.7-1)
6.1-bookworm-security: N/A "Vulnerable code not present"
5.10-bullseye-security: N/A "Vulnerable code not present"
4.19-buster-security: N/A "Vulnerable code not present"