Avoid reusing stale driver data when an interface is brought down and up again. In order to avoid having to duplicate the memset in every single driver, do it here. Signed-off-by: Felix Fietkau <nbd@xxxxxxxx> --- net/mac80211/driver-ops.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/mac80211/driver-ops.c b/net/mac80211/driver-ops.c index fe868b521622..afdf0a19a88e 100644 --- a/net/mac80211/driver-ops.c +++ b/net/mac80211/driver-ops.c @@ -121,6 +121,9 @@ void drv_remove_interface(struct ieee80211_local *local, trace_drv_remove_interface(local, sdata); local->ops->remove_interface(&local->hw, &sdata->vif); trace_drv_return_void(local); + + /* Clear private driver data in case of reuse */ + memset(sdata->vif.drv_priv, 0, local->hw.vif_data_size); } __must_check -- 2.44.0
