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 19:47:51 +0200 |
| commit | a4e074608e2d9cd40802ed10b877ffb202aae95c (patch) | |
| tree | 5881d94567e0383cc340ed1b3bacf89af34407ba /net | |
| parent | a587acdbb01fa549b9fdc272d079398379b0e25e (diff) | |
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')
| -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 fdab4f1390d2..e6f42d12222e 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -4332,6 +4332,10 @@ 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); |