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linux-6.5.y
linux/net/mac80211
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Ping-Ke Shih adc2474d82 wifi: mac80211: don't return unset power in ieee80211_get_tx_power() 
[ Upstream commit e160ab8516 ]

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>
2023-11-28 17:14:41 +00:00
..
aead_api.c mac80211: Check crypto_aead_encrypt for errors 2021-03-16 21:20:41 +01:00
aead_api.h
aes_ccm.h
aes_cmac.c mac80211: aes_cmac: check crypto_shash_setkey() return value 2021-04-19 12:01:40 +02:00
aes_cmac.h
aes_gcm.h
aes_gmac.c mac80211: Check crypto_aead_encrypt for errors 2021-03-16 21:20:41 +01:00
aes_gmac.h
agg-rx.c wifi: mac80211: remove support for AddBA with fragmentation 2022-10-07 15:24:31 +02:00
agg-tx.c wifi: mac80211: agg-tx: prevent start/stop race 2023-06-19 13:12:43 +02:00
airtime.c wifi: mac8021: fix possible oob access in ieee80211_get_rate_duration 2022-11-25 12:45:53 +01:00
cfg.c wifi: mac80211: don't return unset power in ieee80211_get_tx_power() 2023-11-28 17:14:41 +00:00
chan.c wifi: mac80211: add consistency check for compat chandef 2023-06-19 12:05:28 +02:00
debug.h wifi: mac80211: Add getter functions for vif MLD state 2023-06-14 12:20:08 +02:00
debugfs_key.c wifi: mac80211: reorg some iface data structs for MLD 2022-06-20 12:55:06 +02:00
debugfs_key.h
debugfs_netdev.c wifi: mac80211: Add debugfs entry to report dormant links 2023-06-19 12:05:19 +02:00
debugfs_netdev.h wifi: mac80211: add netdev per-link debugfs data and driver hook 2023-03-07 10:56:06 +01:00
debugfs_sta.c wifi: mac80211: add eht_capa debugfs field 2023-06-19 17:34:55 +02:00
debugfs_sta.h wifi: mac80211: add API to show the link STAs in debugfs 2022-10-07 15:23:41 +02:00
debugfs.c wifi: mac80211: remove return value check of debugfs_create_dir() 2023-04-20 11:46:07 +02:00
debugfs.h
driver-ops.c wifi: mac80211: don't recreate driver link debugfs in reconfig 2023-11-20 11:56:52 +01:00
driver-ops.h wifi: mac80211: stop warning after reconfig failures 2023-06-06 14:17:21 +02:00
drop.h wifi: mac80211: fix check for unusable RX result 2023-11-20 11:56:48 +01:00
eht.c wifi: mac80211: add helpers to access sband iftype data 2023-06-14 11:57:29 +02:00
ethtool.c wifi: mac80211: read ethtool's sta_stats from sinfo 2022-08-26 09:56:54 +02:00
fils_aead.c mac80211: fils: use cfg80211_find_ext_elem() 2021-10-21 17:01:16 +02:00
fils_aead.h
he.c wifi: mac80211: add helpers to access sband iftype data 2023-06-14 11:57:29 +02:00
ht.c wifi: mac80211: use wiphy work for SMPS 2023-06-07 19:53:22 +02:00
ibss.c wifi: mac80211: work around Cisco AP 9115 VHT MPDU length 2023-10-25 12:16:18 +02:00
ieee80211_i.h wifi: mac80211: move sched-scan stop work to wiphy work 2023-11-20 11:56:45 +01:00
iface.c wifi: mac80211: move scan work to wiphy work 2023-11-20 11:56:45 +01:00
Kconfig ath9k: fix build error with LEDS_CLASS=m 2021-01-28 09:29:34 +02:00
key.c wifi: mac80211: fix potential key use-after-free 2023-10-10 22:03:00 +02:00
key.h wifi: mac80211: implement link switching 2022-09-06 10:17:20 +02:00
led.c leds: Change led_trigger_blink[_oneshot]() delay parameters to pass-by-value 2023-05-25 12:16:27 +01:00
led.h leds: Change led_trigger_blink[_oneshot]() delay parameters to pass-by-value 2023-05-25 12:16:27 +01:00
link.c wifi: mac80211: Fix setting vif links 2023-11-20 11:56:52 +01:00
main.c wifi: mac80211: move sched-scan stop work to wiphy work 2023-11-20 11:56:45 +01:00
Makefile wifi: mac80211: move link code to a new file 2022-09-03 17:02:25 +02:00
mesh_hwmp.c wifi: mac80211: use wiphy work for sdata->work 2023-06-07 19:53:18 +02:00
mesh_pathtbl.c wifi: mac80211: fix RCU usage warning in mesh fast-xmit 2023-11-20 11:56:45 +01:00
mesh_plink.c wifi: mac80211: work around Cisco AP 9115 VHT MPDU length 2023-10-25 12:16:18 +02:00
mesh_ps.c wifi: mac80211: consistently use u64 for BSS changes 2023-06-06 14:16:48 +02:00
mesh_sync.c mac80211: mesh: clean up rx_bcn_presp API 2021-09-23 16:26:33 +02:00
mesh.c wifi: mac80211: fix mesh id corruption on 32 bit systems 2023-10-10 22:02:59 +02:00
mesh.h wifi: mac80211: consistently use u64 for BSS changes 2023-06-06 14:16:48 +02:00
michael.c
michael.h
mlme.c wifi: mac80211: work around Cisco AP 9115 VHT MPDU length 2023-10-25 12:16:18 +02:00
ocb.c wifi: mac80211: use wiphy work for sdata->work 2023-06-07 19:53:18 +02:00
offchannel.c wifi: mac80211: move offchannel works to wiphy work 2023-11-20 11:56:45 +01:00
pm.c mac80211: Prevent AP probing during suspend 2021-10-21 17:27:51 +02:00
rate.c wifi: mac80211: make ieee80211_check_rate_mask() link-aware 2022-07-15 11:43:21 +02:00
rate.h wifi: mac80211: make ieee80211_check_rate_mask() link-aware 2022-07-15 11:43:21 +02:00
rc80211_minstrel_ht_debugfs.c mac80211: minstrel_ht: show sampling rates in debugfs 2021-02-12 08:58:11 +01:00
rc80211_minstrel_ht.c mac80211: minstrel_ht: remove unused n_supported variable 2023-03-30 11:21:17 +02:00
rc80211_minstrel_ht.h wifi: mac80211: minstrel_ht: remove unused has_mrr member from struct minstrel_priv 2022-10-07 15:25:05 +02:00
rx.c wifi: mac80211: fix check for unusable RX result 2023-11-20 11:56:48 +01:00
s1g.c wifi: mac80211: Set TWT Information Frame Disabled bit as 1 2022-11-02 09:50:40 +01:00
scan.c wifi: mac80211: move sched-scan stop work to wiphy work 2023-11-20 11:56:45 +01:00
spectmgmt.c wifi: mac80211: separate out connection downgrade flags 2022-07-15 11:43:14 +02:00
sta_info.c wifi: mac80211: fix # of MSDU in A-MSDU calculation 2023-11-20 11:56:46 +01:00
sta_info.h wifi: mac80211: use bullet list for amsdu_mesh_control formats list 2023-03-24 10:56:23 +01:00
status.c wifi: mac80211: use wiphy work for sdata->work 2023-06-07 19:53:18 +02:00
tdls.c wifi: mac80211: Extend AID element addition for TDLS frames 2023-06-19 12:05:28 +02:00
tkip.c
tkip.h
trace_msg.h mac80211: tracing: Use the new __vstring() helper 2022-07-24 19:11:17 -04:00
trace.c
trace.h wifi: mac80211: Replace strlcpy with strscpy 2023-06-14 12:32:19 +02:00
tx.c wifi: mac80211: allow transmitting EAPOL frames with tainted key 2023-10-25 12:16:18 +02:00
util.c wifi: mac80211: move scan work to wiphy work 2023-11-20 11:56:45 +01:00
vht.c wifi: mac80211: work around Cisco AP 9115 VHT MPDU length 2023-10-25 12:16:18 +02:00
wep.c
wep.h
wme.c wifi: mac80211: fix qos on mesh interfaces 2023-03-22 13:46:38 +01:00
wme.h wifi: mac80211: Drop support for TX push path 2022-10-10 11:06:14 +02:00
wpa.c mac80211: use the new drop reasons infrastructure 2023-04-20 20:20:49 -07:00
wpa.h wifi: mac80211: remove cipher scheme support 2022-06-10 15:35:53 +02:00