diff options
| author | Denis Kenzior <denkenz@gmail.com> | 2019-08-28 16:11:10 -0500 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2019-09-11 10:45:10 +0200 |
| commit | c1d3ad84eae35414b6b334790048406bd6301b12 (patch) | |
| tree | 3af40141142325c1403289f2623f85ea9b6e1596 /net/wireless/util.c | |
| parent | b697746c62df8cfbaa04b94ae75de7098a08beb7 (diff) | |
cfg80211: Purge frame registrations on iftype change
Currently frame registrations are not purged, even when changing the
interface type. This can lead to potentially weird situations where
frames possibly not allowed on a given interface type remain registered
due to the type switching happening after registration.
The kernel currently relies on userspace apps to actually purge the
registrations themselves, this is not something that the kernel should
rely on.
Add a call to cfg80211_mlme_purge_registrations() to forcefully remove
any registrations left over prior to switching the iftype.
Cc: stable@vger.kernel.org
Signed-off-by: Denis Kenzior <denkenz@gmail.com>
Link: https://lore.kernel.org/r/20190828211110.15005-1-denkenz@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless/util.c')
| -rw-r--r-- | net/wireless/util.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/wireless/util.c b/net/wireless/util.c index 006f3eac00f7..633f6a331040 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -964,6 +964,7 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev, } cfg80211_process_rdev_events(rdev); + cfg80211_mlme_purge_registrations(dev->ieee80211_ptr); } err = rdev_change_virtual_intf(rdev, dev, ntype, params); |