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cfg80211: fix regulatory NULL dereference

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commit de3584bd62 upstream.

By the time userspace returns with a response to
the regulatory domain request, the wiphy causing
the request might have gone away. If this is so,
reject the update but mark the request as having
been processed anyway.

Cc: Luis R. Rodriguez <lrodriguez@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Johannes Berg
2011-11-21 10:44:00 +01:00
committed by Greg Kroah-Hartman
parent 5c76953157
commit 737df45ddf
1 changed files with 4 additions and 0 deletions
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4
net/wireless/reg.c
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@@ -2026,6 +2026,10 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
}
request_wiphy = wiphy_idx_to_wiphy(last_request->wiphy_idx);
if (!request_wiphy) {
reg_set_request_processed();
return -ENODEV;
}
if (!last_request->intersect) {
int r;