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56cb31e185
If wdev->wext.keys was initialized it didn't get reset to NULL on unregister (and it doesn't get set in cfg80211_init_wdev either), but wdev is reused if unregister was triggered through cfg80211_switch_netns. The next unregister (for whatever reason) will try to free wdev->wext.keys again. Signed-off-by: Stefan Bühler <source@stbuehler.de> Link: https://lore.kernel.org/r/20191126100543.782023-1-stefan.buehler@tik.uni-stuttgart.de Signed-off-by: Johannes Berg <johannes.berg@intel.com>