diff options
| author | Luca Coelho <luciano.coelho@intel.com> | 2017-05-02 17:56:21 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-04-13 20:52:09 +0300 |
| commit | b3b0df34dd5eeab163f696e583ddbb9be5e887d5 (patch) | |
| tree | 23ebbb84e5f450fbeb299af41d8bc08db9fef9cd /net/mac80211 | |
| parent | bc705996bb341187df2bbcbf1b6c2c1cf330ef40 (diff) | |
| download | linux-b3b0df34dd5eeab163f696e583ddbb9be5e887d5.tar.xz | |
mac80211: bail out from prep_connection() if a reconfig is ongoing
[ Upstream commit f8860ce836f2d502b07ef99559707fe55d90f5bc ]
If ieee80211_hw_restart() is called during authentication, the
authentication process will continue, causing the driver to be called
in a wrong state. This ultimately causes an oops in the iwlwifi
driver (at least).
This fixes bugzilla 195299 partly.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=195299
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/mac80211')
| -rw-r--r-- | net/mac80211/mlme.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index b13634c677f1..156e8e13ffed 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -3995,6 +3995,10 @@ static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata, if (WARN_ON(!ifmgd->auth_data && !ifmgd->assoc_data)) return -EINVAL; + /* If a reconfig is happening, bail out */ + if (local->in_reconfig) + return -EBUSY; + if (assoc) { rcu_read_lock(); have_sta = sta_info_get(sdata, cbss->bssid); |