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Ping-Ke Shih 4bed34e297 wifi: mac80211: don't return unset power in ieee80211_get_tx_power() 
[ Upstream commit e160ab85166e77347d0cbe5149045cb25e83937f ]

We can get a UBSAN warning if ieee80211_get_tx_power() returns the
INT_MIN value mac80211 internally uses for "unset power level".

 UBSAN: signed-integer-overflow in net/wireless/nl80211.c:3816:5
 -2147483648 * 100 cannot be represented in type 'int'
 CPU: 0 PID: 20433 Comm: insmod Tainted: G        WC OE
 Call Trace:
  dump_stack+0x74/0x92
  ubsan_epilogue+0x9/0x50
  handle_overflow+0x8d/0xd0
  __ubsan_handle_mul_overflow+0xe/0x10
  nl80211_send_iface+0x688/0x6b0 [cfg80211]
  [...]
  cfg80211_register_wdev+0x78/0xb0 [cfg80211]
  cfg80211_netdev_notifier_call+0x200/0x620 [cfg80211]
  [...]
  ieee80211_if_add+0x60e/0x8f0 [mac80211]
  ieee80211_register_hw+0xda5/0x1170 [mac80211]

In this case, simply return an error instead, to indicate
that no data is available.

Cc: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://lore.kernel.org/r/20230203023636.4418-1-pkshih@realtek.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-18 11:43:12 +01:00
..
6lowpan Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
9p Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
802 Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
8021q Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
appletalk Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
atm Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ax25 Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
batman-adv Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
bluetooth Bluetooth: hci_sock: Correctly bounds check and pad HCI_MON_NEW_INDEX name 2024-11-08 11:26:20 +01:00
bpf Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
bpfilter Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
bridge Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
caif Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
can can: isotp: isotp_sendmsg(): fix TX state detection and wait behavior 2024-11-18 10:58:47 +01:00
ceph libceph: use kernel_connect() 2024-11-08 11:25:50 +01:00
core neighbour: fix various data-races 2024-11-18 10:58:29 +01:00
dcb Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dccp dccp/tcp: Call security_inet_conn_request() after setting IPv6 addresses. 2024-11-18 11:43:07 +01:00
decnet Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dns_resolver Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dsa Backport mac80211 patches from linux-6.1.y 2024-06-15 16:29:20 -03:00
ethernet Backport mac80211 patches from linux-6.1.y 2024-06-15 16:29:20 -03:00
ethtool Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
hsr hsr: Prevent use after free in prp_create_tagged_frame() 2024-11-18 11:43:07 +01:00
ieee802154 Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ife Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ipv4 tcp: fix cookie_init_timestamp() overflows 2024-11-18 11:42:50 +01:00
ipv6 dccp/tcp: Call security_inet_conn_request() after setting IPv6 addresses. 2024-11-18 11:43:07 +01:00
iucv Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
kcm Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
key Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
l2tp Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
l3mdev Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
lapb Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
llc llc: verify mac len before reading mac header 2024-11-18 11:43:07 +01:00
mac80211 wifi: mac80211: don't return unset power in ieee80211_get_tx_power() 2024-11-18 11:43:12 +01:00
mac802154 Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mpls Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mptcp Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ncm Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ncsi Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
netfilter netfilter: nat: fix ipv6 nat redirect with mapped and scoped addresses 2024-11-18 11:43:11 +01:00
netlabel Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
netlink Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
netrom Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nfc nfc: nci: fix possible NULL pointer dereference in send_acknowledge() 2024-11-08 11:26:08 +01:00
nsh Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
openvswitch Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
packet Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
phonet Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
psample Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
qrtr Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
rds net: prevent address rewrite in kernel_bind() 2024-11-08 11:25:44 +01:00
rfkill net: rfkill: gpio: prevent value glitch during probe 2024-11-08 11:26:10 +01:00
rose Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
rxrpc Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
sched net: sched: cls_u32: Fix allocation size in u32_init() 2024-11-18 10:58:46 +01:00
sctp Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
skb_tracer Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
smc net/smc: put sk reference if close work was canceled 2024-11-18 11:43:08 +01:00
strparser Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
sunrpc Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
switchdev Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tipc tipc: Change nla_policy for bearer-related names to NLA_NUL_STRING 2024-11-18 11:43:07 +01:00
tls Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
unix Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
vmw_vsock Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
wimax Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
wireless wifi: cfg80211: avoid leaking stack data into trace 2024-11-08 11:26:17 +01:00
x25 Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
xdp Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
xfrm Revert "xfrm: fix a data-race in xfrm_gen_index()" 2024-11-17 19:38:56 +01:00
compat.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
devres.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
Kconfig Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
Makefile Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
socket.c net: prevent address rewrite in kernel_bind() 2024-11-08 11:25:44 +01:00
sysctl_net.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
TEST_MAPPING Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00