Wei Yongjun 7410f4d122 mac802154: fix missing INIT_LIST_HEAD in ieee802154_if_add() ... [ Upstream commit b3d72d3135 ] Kernel fault injection test reports null-ptr-deref as follows: BUG: kernel NULL pointer dereference, address: 0000000000000008 RIP: 0010:cfg802154_netdev_notifier_call+0x120/0x310 include/linux/list.h:114 Call Trace: <TASK> raw_notifier_call_chain+0x6d/0xa0 kernel/notifier.c:87 call_netdevice_notifiers_info+0x6e/0xc0 net/core/dev.c:1944 unregister_netdevice_many_notify+0x60d/0xcb0 net/core/dev.c:1982 unregister_netdevice_queue+0x154/0x1a0 net/core/dev.c:10879 register_netdevice+0x9a8/0xb90 net/core/dev.c:10083 ieee802154_if_add+0x6ed/0x7e0 net/mac802154/iface.c:659 ieee802154_register_hw+0x29c/0x330 net/mac802154/main.c:229 mcr20a_probe+0xaaa/0xcb1 drivers/net/ieee802154/mcr20a.c:1316 ieee802154_if_add() allocates wpan_dev as netdev's private data, but not init the list in struct wpan_dev. cfg802154_netdev_notifier_call() manage the list when device register/unregister, and may lead to null-ptr-deref. Use INIT_LIST_HEAD() on it to initialize it correctly. Fixes: fcf39e6e88 ("ieee802154: add wpan_dev_list") Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Acked-by: Alexander Aring <aahringo@redhat.com> Link: https://lore.kernel.org/r/20221130091705.1831140-1-weiyongjun@huaweicloud.com Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-12-14 11:24:34 +01:00
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Kconfig	…
Makefile	…
cfg.c	…
cfg.h	…
driver-ops.h	…
ieee802154_i.h	…
iface.c	mac802154: fix missing INIT_LIST_HEAD in ieee802154_if_add()	2022-12-14 11:24:34 +01:00
llsec.c	net: mac802154: Fix general protection fault	2021-04-16 11:59:10 +02:00
llsec.h	…
mac_cmd.c	…
main.c	…
mib.c	…
rx.c	mac802154: Fix LQI recording	2022-11-03 23:49:16 +09:00
trace.c	…
trace.h	…
tx.c	mac802154: tx: fix use-after-free	2020-10-01 20:40:18 +02:00
util.c	…