Hello, Moving on to the next mPCIe device, on Ubuntu boot I got: [ 97.002796] ath5k 0000:05:06.0: registered as 'phy0' [ 97.714196] ath: EEPROM regdomain: 0x63 [ 97.714203] ath: EEPROM indicates we should expect a direct regpair map [ 97.714205] ath: Country alpha2 being used: 00 [ 97.714207] ath: Regpair used: 0x63 [ 97.714229] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht' [ 97.714561] ath5k: phy0: Atheros AR2413 chip found (MAC: 0x78, PHY: 0x45) [ 97.729120] ath5k 0000:05:06.0 wlp5s6: renamed from wlan0 It got connected to WPA3 2,4GHz SSID so I moved on to the combo WPA2,3. After enabling air-plane mode, I got this: [ 994.871066] wlp5s6: authenticate with c6:27:28:1e:f0:b4 [ 994.871151] wlp5s6: 80 MHz not supported, disabling VHT [ 994.876190] wlp5s6: send auth to c6:27:28:1e:f0:b4 (try 1/3) [ 995.013061] wlp5s6: authenticate with c6:27:28:1e:f0:b4 [ 995.013085] wlp5s6: send auth to c6:27:28:1e:f0:b4 (try 1/3) [ 995.123340] wlp5s6: authenticated [ 995.127512] wlp5s6: associate with c6:27:28:1e:f0:b4 (try 1/3) [ 995.130773] wlp5s6: RX AssocResp from c6:27:28:1e:f0:b4 (capab=0x1431 status=0 aid=16) [ 995.130944] wlp5s6: associated [ 995.131222] ath: EEPROM regdomain: 0x812c [ 995.131228] ath: EEPROM indicates we should expect a country code [ 995.131233] ath: doing EEPROM country->regdmn map search [ 995.131236] ath: country maps to regdmn code: 0x37 [ 995.131241] ath: Country alpha2 being used: GR [ 995.131245] ath: Regpair used: 0x37 [ 995.131249] ath: regdomain 0x812c dynamically updated by country element [ 995.179221] wlp5s6: Limiting TX power to 30 (30 - 0) dBm as advertised by c6:27:28:1e:f0:b4 [ 995.260401] IPv6: ADDRCONF(NETDEV_CHANGE): wlp5s6: link becomes ready [ 1209.325924] ================================================================================ [ 1209.325943] UBSAN: array-index-out-of-bounds in /build/linux-JDy9aa/linux-5.19.0/drivers/net/wireless/ath/ath5k/base.c:1741:20 [ 1209.325957] index 4 is out of range for type 'ieee80211_tx_rate [4]' [ 1209.325966] CPU: 5 PID: 0 Comm: swapper/5 Tainted: P O 5.19.0-21-generic #21-Ubuntu [ 1209.325976] Hardware name: Gigabyte Technology Co., Ltd. GA-880GMA-USB3/GA-880GMA-USB3, BIOS F4e 05/24/2012 [ 1209.325981] Call Trace: [ 1209.325987] <IRQ> [ 1209.325996] show_stack+0x4e/0x61 [ 1209.326014] dump_stack_lvl+0x4a/0x6d [ 1209.326031] dump_stack+0x10/0x18 [ 1209.326041] ubsan_epilogue+0x9/0x43 [ 1209.326051] __ubsan_handle_out_of_bounds.cold+0x42/0x47 [ 1209.326064] ath5k_tx_frame_completed.constprop.0+0x28f/0x2e0 [ath5k] [ 1209.326097] ath5k_tx_processq+0xb2/0x1d0 [ath5k] [ 1209.326123] ath5k_tasklet_tx+0x80/0xf0 [ath5k] [ 1209.326148] tasklet_action_common.constprop.0+0xbc/0x100 [ 1209.326163] tasklet_action+0x22/0x30 [ 1209.326173] __do_softirq+0xdb/0x34f [ 1209.326184] __irq_exit_rcu+0x87/0xc0 [ 1209.326195] irq_exit_rcu+0xe/0x20 [ 1209.326204] common_interrupt+0xa4/0xb0 [ 1209.326213] </IRQ> [ 1209.326216] <TASK> [ 1209.326220] asm_common_interrupt+0x27/0x40 [ 1209.326232] RIP: 0010:native_safe_halt+0xb/0x10 [ 1209.326245] Code: cc cc cc 4c 89 ee 48 c7 c7 e0 4f 25 99 e8 8d 8f 84 ff eb c4 cc cc cc cc cc cc cc cc cc cc cc eb 07 0f 00 2d b9 46 4e 00 fb f4 <c3> cc cc cc cc eb 07 0f 00 2d a9 46 4e 00 f4 c3 cc cc cc cc cc 0f [ 1209.326253] RSP: 0018:ffffa6ac800cfdc0 EFLAGS: 00000246 [ 1209.326263] RAX: 0000000000004000 RBX: ffff8a7c81270464 RCX: 0000000000000000 [ 1209.326270] RDX: 0000000000000001 RSI: ffff8a7c81270400 RDI: 0000000000000001 [ 1209.326275] RBP: ffffa6ac800cfdd0 R08: 0000000000000000 R09: 0000000000000000 [ 1209.326280] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8a7c81270464 [ 1209.326285] R13: 0000000000000005 R14: ffffffff994c5220 R15: ffff8a7fa0540000 [ 1209.326296] ? acpi_idle_do_entry+0x79/0xc0 [ 1209.326307] acpi_idle_enter+0xbb/0x180 [ 1209.326318] cpuidle_enter_state+0x9a/0x650 [ 1209.326331] ? native_load_gs_index+0x19/0x40 [ 1209.326342] ? raw_spin_rq_unlock+0x10/0x40 [ 1209.326354] cpuidle_enter+0x2e/0x50 [ 1209.326365] call_cpuidle+0x23/0x50 [ 1209.326375] cpuidle_idle_call+0x11b/0x190 [ 1209.326383] do_idle+0x82/0x100 [ 1209.326390] cpu_startup_entry+0x1d/0x20 [ 1209.326398] start_secondary+0x122/0x160 [ 1209.326408] secondary_startup_64_no_verify+0xe5/0xeb [ 1209.326423] </TASK> [ 1209.326478] ================================================================================ [ 1227.796076] wlp5s6: deauthenticating from c6:27:28:**:**:** by local choice (Reason: 3=DEAUTH_LEAVING) Here is the device: 05:06.0 Ethernet controller [0200]: Qualcomm Atheros AR2413/AR2414 Wireless Network Adapter [AR5005G(S) 802.11bg] [168c:001a] (rev 01) Subsystem: AMBIT Microsystem Corp. AR2413/AR2414 Wireless Network Adapter [AR5005G(S) 802.11bg] [1468:0418] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 168 (2500ns min, 7000ns max), Cache Line Size: 4 bytes Interrupt: pin A routed to IRQ 20 NUMA node: 0 Region 0: Memory at fdbf0000 (32-bit, non-prefetchable) [size=64K] Capabilities: [44] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=2 PME- Kernel driver in use: ath5k Kernel modules: ath5k 00: 8c 16 1a 00 06 00 90 02 01 00 00 02 01 a8 00 00 10: 00 00 bf fd 00 00 00 00 00 00 00 00 00 00 00 00 20: 00 00 00 00 00 00 00 00 01 50 00 00 68 14 18 04 30: 00 00 00 00 44 00 00 00 00 00 00 00 05 01 0a 1c 40: 00 00 00 00 01 00 c2 01 00 40 00 c6 00 00 00 00 50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00