On Wed, Oct 02, 2024 at 02:06:24PM +0200, Georg Müller wrote: > From: Lorenzo Bianconi <lorenzo@xxxxxxxxxx> > > commit 41130c32f3a18fcc930316da17f3a5f3bc326aa1 upstream. > > Trying to probe a mt7921e pci card without firmware results in a > successful probe where ieee80211_register_hw hasn't been called. When > removing the driver, ieee802111_unregister_hw is called unconditionally > leading to a kernel NULL pointer dereference. > Fix the issue running mt76_unregister_device routine just for registered > hw. > > Link: https://bugs.debian.org/1029116 > Link: https://bugs.kali.org/view.php?id=8140 > Reported-by: Stuart Hayhurst <stuart.a.hayhurst@xxxxxxxxx> > Fixes: 1c71e03afe4b ("mt76: mt7921: move mt7921_init_hw in a dedicated work") > Tested-by: Helmut Grohne <helmut@xxxxxxxxxxxx> > Signed-off-by: Lorenzo Bianconi <lorenzo@xxxxxxxxxx> > Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxx> > Signed-off-by: Georg Müller <georgmueller@xxxxxxx> > Link: https://lore.kernel.org/r/be3457d82f4e44bb71a22b2b5db27b644a37b1e1.1677107277.git.lorenzo@xxxxxxxxxx > --- > drivers/net/wireless/mediatek/mt76/mac80211.c | 8 ++++++++ > drivers/net/wireless/mediatek/mt76/mt76.h | 1 + > 2 files changed, 9 insertions(+) What kernel tree(s) do you want this applied to? thanks, greg k-h
