This is a note to let you know that I've just added the patch titled wifi: mac80211: fix memory leak in ieee80211_if_add() to the 5.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: wifi-mac80211-fix-memory-leak-in-ieee80211_if_add.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit dfbaefc040e3f6c2362c46ca8e4732540969311e Author: Zhengchao Shao <shaozhengchao@xxxxxxxxxx> Date: Thu Nov 17 14:45:00 2022 +0800 wifi: mac80211: fix memory leak in ieee80211_if_add() [ Upstream commit 13e5afd3d773c6fc6ca2b89027befaaaa1ea7293 ] When register_netdevice() failed in ieee80211_if_add(), ndev->tstats isn't released. Fix it. Fixes: 5a490510ba5f ("mac80211: use per-CPU TX/RX statistics") Signed-off-by: Zhengchao Shao <shaozhengchao@xxxxxxxxxx> Link: https://lore.kernel.org/r/20221117064500.319983-1-shaozhengchao@xxxxxxxxxx Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 041859b5b71d..a3347f245782 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -2059,6 +2059,7 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name, ret = cfg80211_register_netdevice(ndev); if (ret) { + ieee80211_if_free(ndev); free_netdev(ndev); return ret; }