wifi: brcmfmac: cyw: pass PMKID to firmware if present

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Zero out auth_status on initialization. Otherwise, garbage will
leak from the stack to the firmware (when ssid is less than 32 bytes
and/or when params->pmkid is set). Then, pass the params->pmkid to the
firmware (without it, the firmware caches a garbage PMKID on successful
authentication and denies a subsequent association request that includes
the PMKID).

Fixes: 66f909308a ("wifi: brcmfmac: cyw: support external SAE authentication in station mode")
Signed-off-by: Bogdan Nicolae <bogdan.nicolae@gmail.com>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Link: https://patch.msgid.link/20260807163418.487508-1-bogdan.nicolae@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

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Bogdan Nicolae 2026-08-07 11:34:18 -05:00 • committed by Johannes Berg

parent fa00193eb9

commit e2de8d5eb2

1 changed files with 4 additions and 1 deletions

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drivers/net/wireless/broadcom/brcm80211/brcmfmac/cyw/core.c

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