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6c44abb2d4
commitd5fee261dfupstream. When we free wdev->cqm_config when unregistering, we also need to clear out the pointer since the same wdev/netdev may get re-registered in another network namespace, then destroyed later, running this code again, which results in a double-free. Reported-by: syzbot+36218cddfd84b5cc263e@syzkaller.appspotmail.com Fixes:37c20b2eff("wifi: cfg80211: fix cqm_config access race") Cc: stable@vger.kernel.org Link: https://patch.msgid.link/20241022161742.7c34b2037726.I121b9cdb7eb180802eafc90b493522950d57ee18@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>