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Commit d91c01c7 authored by Jouni Malinen's avatar Jouni Malinen Committed by John W. Linville
Browse files

nl80211: Make nl80211_send_mlme_event() atomic 



One of the code paths sending deauth/disassoc events ends up calling
this function with rcu_read_lock held, so we must use GFP_ATOMIC in
allocation routines.

Reported-by: default avatarJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: default avatarJouni Malinen <j@w1.fi>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent e10a9dfc

net/wireless/nl80211.c

+2 −2
Original line number Diff line number Diff line
@@ -3334,7 +3334,7 @@ static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev, 
	struct sk_buff *msg;

	void *hdr;



	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);

	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);

	if (!msg)

		return;
@@ -3353,7 +3353,7 @@ static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev, 
		return;

	}



	genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, GFP_KERNEL);

	genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, GFP_ATOMIC);

	return;



 nla_put_failure: