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Dinghao Liu 9f6a90d384 ieee802154: ca8210: Fix a potential UAF in ca8210_probe 
[ Upstream commit f990874b1c98fe8e57ee9385669f501822979258 ]

If of_clk_add_provider() fails in ca8210_register_ext_clock(),
it calls clk_unregister() to release priv->clk and returns an
error. However, the caller ca8210_probe() then calls ca8210_remove(),
where priv->clk is freed again in ca8210_unregister_ext_clock(). In
this case, a use-after-free may happen in the second time we call
clk_unregister().

Fix this by removing the first clk_unregister(). Also, priv->clk could
be an error code on failure of clk_register_fixed_rate(). Use
IS_ERR_OR_NULL to catch this case in ca8210_unregister_ext_clock().

Fixes: ded845a781a5 ("ieee802154: Add CA8210 IEEE 802.15.4 device driver")
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Message-ID: <20231007033049.22353-1-dinghao.liu@zju.edu.cn>
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-08 11:25:45 +01:00
..
appletalk Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
arcnet Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
bonding Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
caif Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
can Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dropdump Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dsa Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ethernet Backport mac80211 patches from linux-6.1.y 2024-06-15 16:29:20 -03:00
fddi Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
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hyperv Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ieee802154 ieee802154: ca8210: Fix a potential UAF in ca8210_probe 2024-11-08 11:25:45 +01:00
ipa Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ipvlan Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mdio Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
netdevsim Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
pcs Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
phy Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
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usb Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
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wimax Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
wireguard Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
wireless wifi: mt76: replace skb_put with skb_put_zero 2024-10-04 20:09:30 -03:00
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mii.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
net_failover.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
netconsole.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nlmon.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ntb_netdev.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
rionet.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
sb1000.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
Space.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
sungem_phy.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tap.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
thunderbolt.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tun.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
veth.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
virtio_net.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
vrf.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
vsockmon.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
xen-netfront.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00