From 64d1519edc959f5b8f86a66a51c40971c215e4ec Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 19 Feb 2018 13:30:45 +0100
Subject: [PATCH] brcmfmac: reject too long PSK
Git-commit: 64d1519edc959f5b8f86a66a51c40971c215e4ec
Patch-mainline: v4.17-rc1
References: FATE#326294
nl80211 already allows specifying 48 bytes, but brcmfmac
only supports 32. Reject keys that are too long.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
index 15fa00d79fc6..74a83020c073 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
@@ -5124,6 +5124,9 @@ static int brcmf_cfg80211_set_pmk(struct wiphy *wiphy, struct net_device *dev,
if (WARN_ON(ifp->vif->profile.use_fwsup != BRCMF_PROFILE_FWSUP_1X))
return -EINVAL;
+ if (conf->pmk_len > BRCMF_WSEC_MAX_PSK_LEN)
+ return -ERANGE;
+
return brcmf_set_pmk(ifp, conf->pmk, conf->pmk_len);
}
--
2.19.2