ivpn-service causes frequent iwlwifi crashes and instability

[0-ft]

Bug report

Describe your environment

• Device: XPS 13 9310, Framework 13 13th gen
• OS name and version: Ubuntu 22.04 LTS
• IVPN app version: 3.14.2

Describe the problem

Steps to reproduce:

1. Install ivpn through apt and log in

Observed Results:

Installing the IVPN package on Ubuntu 22.04 LTS on devices using iwlwifi causes frequent crashes, seen in dmesg output. These occur whether or not the firewall is enabled. I have observed this on an XPS13 9310 and also on Framework Laptop 13 13th gen.

These crashes cause WiFi connectivity to fail entirely for a few seconds at random times around every 2-3 minutes.

This archlinux thread shows someone else also identifying IVPN as the source of the same problem, on quite a different setup.

Expected Results:

That iwlwifi would not crash. If I uninstall ivpn these crashes do not occur.

Relevant Code:

[45050.333376] iwlwifi 0000:aa:00.0: Microcode SW error detected. Restarting 0x0.
[45050.333771] iwlwifi 0000:aa:00.0: Start IWL Error Log Dump:
[45050.333776] iwlwifi 0000:aa:00.0: Transport status: 0x0000004B, valid: 6
[45050.333781] iwlwifi 0000:aa:00.0: Loaded firmware version: 72.a764baac.0 ty-a0-gf-a0-72.ucode
[45050.333785] iwlwifi 0000:aa:00.0: 0x00000071 | NMI_INTERRUPT_UMAC_FATAL    
[45050.333790] iwlwifi 0000:aa:00.0: 0x000000E3 | trm_hw_status0
[45050.333793] iwlwifi 0000:aa:00.0: 0x00000000 | trm_hw_status1
[45050.333796] iwlwifi 0000:aa:00.0: 0x004DB5D2 | branchlink2
[45050.333800] iwlwifi 0000:aa:00.0: 0x000088DC | interruptlink1
[45050.333803] iwlwifi 0000:aa:00.0: 0x000088DC | interruptlink2
[45050.333805] iwlwifi 0000:aa:00.0: 0x0000C2BA | data1
[45050.333809] iwlwifi 0000:aa:00.0: 0x00000010 | data2
[45050.333812] iwlwifi 0000:aa:00.0: 0x00000000 | data3
[45050.333815] iwlwifi 0000:aa:00.0: 0x058175EB | beacon time
[45050.333819] iwlwifi 0000:aa:00.0: 0x1F73F361 | tsf low
[45050.333822] iwlwifi 0000:aa:00.0: 0x00000655 | tsf hi
[45050.333825] iwlwifi 0000:aa:00.0: 0x00000000 | time gp1
[45050.333828] iwlwifi 0000:aa:00.0: 0x06E04999 | time gp2
[45050.333831] iwlwifi 0000:aa:00.0: 0x00000001 | uCode revision type
[45050.333834] iwlwifi 0000:aa:00.0: 0x00000048 | uCode version major
[45050.333837] iwlwifi 0000:aa:00.0: 0xA764BAAC | uCode version minor
[45050.333840] iwlwifi 0000:aa:00.0: 0x00000420 | hw version
[45050.333843] iwlwifi 0000:aa:00.0: 0x00C89002 | board version
[45050.333846] iwlwifi 0000:aa:00.0: 0x08B5001C | hcmd
[45050.333850] iwlwifi 0000:aa:00.0: 0x67F68000 | isr0
[45050.333852] iwlwifi 0000:aa:00.0: 0x61400000 | isr1
[45050.333855] iwlwifi 0000:aa:00.0: 0x48F00012 | isr2
[45050.333858] iwlwifi 0000:aa:00.0: 0x04C30288 | isr3
[45050.333861] iwlwifi 0000:aa:00.0: 0x00200000 | isr4
[45050.333864] iwlwifi 0000:aa:00.0: 0x08A9001C | last cmd Id
[45050.333867] iwlwifi 0000:aa:00.0: 0x0000C2BA | wait_event
[45050.333870] iwlwifi 0000:aa:00.0: 0x00004288 | l2p_control
[45050.333873] iwlwifi 0000:aa:00.0: 0x00009C20 | l2p_duration
[45050.333876] iwlwifi 0000:aa:00.0: 0x000003BF | l2p_mhvalid
[45050.333879] iwlwifi 0000:aa:00.0: 0x00E700D8 | l2p_addr_match
[45050.333882] iwlwifi 0000:aa:00.0: 0x00000009 | lmpm_pmg_sel
[45050.333885] iwlwifi 0000:aa:00.0: 0x00000000 | timestamp
[45050.333888] iwlwifi 0000:aa:00.0: 0x000018A0 | flow_handler
[45050.334170] iwlwifi 0000:aa:00.0: Start IWL Error Log Dump:
[45050.334173] iwlwifi 0000:aa:00.0: Transport status: 0x0000004B, valid: 7
[45050.334177] iwlwifi 0000:aa:00.0: 0x20103609 | ADVANCED_SYSASSERT
[45050.334180] iwlwifi 0000:aa:00.0: 0x00000000 | umac branchlink1
[45050.334183] iwlwifi 0000:aa:00.0: 0x8045F1D0 | umac branchlink2
[45050.334186] iwlwifi 0000:aa:00.0: 0x010199F0 | umac interruptlink1
[45050.334189] iwlwifi 0000:aa:00.0: 0x00000000 | umac interruptlink2
[45050.334192] iwlwifi 0000:aa:00.0: 0x00000025 | umac data1
[45050.334195] iwlwifi 0000:aa:00.0: 0x00000001 | umac data2
[45050.334198] iwlwifi 0000:aa:00.0: 0x00000000 | umac data3
[45050.334201] iwlwifi 0000:aa:00.0: 0x00000048 | umac major
[45050.334204] iwlwifi 0000:aa:00.0: 0xA764BAAC | umac minor
[45050.334207] iwlwifi 0000:aa:00.0: 0x06E04993 | frame pointer
[45050.334210] iwlwifi 0000:aa:00.0: 0xC0886C0C | stack pointer
[45050.334212] iwlwifi 0000:aa:00.0: 0x0058010D | last host cmd
[45050.334215] iwlwifi 0000:aa:00.0: 0x00000000 | isr status reg
[45050.334476] iwlwifi 0000:aa:00.0: IML/ROM dump:
[45050.334479] iwlwifi 0000:aa:00.0: 0x00000B03 | IML/ROM error/state
[45050.334908] iwlwifi 0000:aa:00.0: 0x000077C3 | IML/ROM data1
[45050.335129] iwlwifi 0000:aa:00.0: 0x00000090 | IML/ROM WFPM_AUTH_KEY_0
[45050.335335] iwlwifi 0000:aa:00.0: Fseq Registers:
[45050.335497] iwlwifi 0000:aa:00.0: 0x60000000 | FSEQ_ERROR_CODE
[45050.335658] iwlwifi 0000:aa:00.0: 0x80440005 | FSEQ_TOP_INIT_VERSION
[45050.335820] iwlwifi 0000:aa:00.0: 0x00080009 | FSEQ_CNVIO_INIT_VERSION
[45050.335988] iwlwifi 0000:aa:00.0: 0x0000A652 | FSEQ_OTP_VERSION
[45050.336152] iwlwifi 0000:aa:00.0: 0x00000002 | FSEQ_TOP_CONTENT_VERSION
[45050.336314] iwlwifi 0000:aa:00.0: 0x4552414E | FSEQ_ALIVE_TOKEN
[45050.336474] iwlwifi 0000:aa:00.0: 0x00400410 | FSEQ_CNVI_ID
[45050.336632] iwlwifi 0000:aa:00.0: 0x00400410 | FSEQ_CNVR_ID
[45050.336792] iwlwifi 0000:aa:00.0: 0x00400410 | CNVI_AUX_MISC_CHIP
[45050.336915] iwlwifi 0000:aa:00.0: 0x00400410 | CNVR_AUX_MISC_CHIP
[45050.337037] iwlwifi 0000:aa:00.0: 0x00009061 | CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM
[45050.337159] iwlwifi 0000:aa:00.0: 0x00000061 | CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR
[45050.337513] iwlwifi 0000:aa:00.0: WRT: Collecting data: ini trigger 4 fired (delay=0ms).
[45050.337521] ieee80211 phy0: Hardware restart was requested
[45050.337539] iwlwifi 0000:aa:00.0: FW error in SYNC CMD SCAN_REQ_UMAC
[45050.337551] CPU: 2 PID: 9584 Comm: ivpn-service Tainted: G        W          6.1.0-1028-oem #28-Ubuntu
[45050.337556] Hardware name: Framework Laptop (13th Gen Intel Core)/FRANMCCP06, BIOS 03.04 05/24/2023
[45050.337558] Call Trace:
[45050.337562]  <TASK>
[45050.337567]  show_stack+0x4e/0x61
[45050.337575]  dump_stack_lvl+0x4a/0x6f
[45050.337580]  dump_stack+0x10/0x18
[45050.337585]  iwl_trans_txq_send_hcmd_sync+0x368/0x370 [iwlwifi]
[45050.337625]  ? destroy_sched_domains_rcu+0x40/0x40
[45050.337632]  iwl_trans_txq_send_hcmd+0xb8/0x170 [iwlwifi]
[45050.337665]  iwl_trans_send_cmd+0x81/0x110 [iwlwifi]
[45050.337697]  iwl_mvm_send_cmd+0x38/0xa0 [iwlmvm]
[45050.337730]  iwl_mvm_reg_scan_start+0x2ed/0x400 [iwlmvm]
[45050.337771]  iwl_mvm_mac_hw_scan+0x50/0x80 [iwlmvm]
[45050.337796]  drv_hw_scan+0x46/0x160 [mac80211]
[45050.337864]  __ieee80211_start_scan+0x28e/0x6b0 [mac80211]
[45050.337923]  ieee80211_request_scan+0x30/0x60 [mac80211]
[45050.337981]  ieee80211_scan+0x66/0x110 [mac80211]
[45050.338049]  rdev_scan+0x2a/0xe0 [cfg80211]
[45050.338110]  cfg80211_wext_siwscan+0x36e/0x660 [cfg80211]
[45050.338161]  ? ioctl_standard_iw_point+0x18d/0x3d0
[45050.338169]  ioctl_standard_iw_point+0x221/0x3d0
[45050.338174]  ? cfg80211_parse_colocated_ap+0x310/0x310 [cfg80211]
[45050.338222]  ? ioctl_standard_iw_point+0x260/0x3d0
[45050.338228]  ? cfg80211_parse_colocated_ap+0x310/0x310 [cfg80211]
[45050.338275]  ioctl_standard_call+0xcf/0x140
[45050.338281]  ? iw_handler_get_private+0x80/0x80
[45050.338287]  ? call_commit_handler+0x60/0x60
[45050.338292]  wireless_process_ioctl+0x180/0x1b0
[45050.338298]  wext_handle_ioctl+0x168/0x1a0
[45050.338303]  ? __rtnl_unlock+0x37/0x70
[45050.338311]  sock_ioctl+0x1e1/0x350
[45050.338316]  ? wext_handle_ioctl+0x186/0x1a0
[45050.338322]  ? __fget_light+0xa5/0x120
[45050.338327]  __x64_sys_ioctl+0x9d/0xe0
[45050.338331]  do_syscall_64+0x58/0x90
[45050.338336]  ? exit_to_user_mode_prepare+0x30/0xb0
[45050.338342]  ? syscall_exit_to_user_mode+0x37/0x60
[45050.338348]  ? do_syscall_64+0x67/0x90
[45050.338353]  ? exit_to_user_mode_prepare+0x30/0xb0
[45050.338357]  ? syscall_exit_to_user_mode+0x37/0x60
[45050.338362]  ? do_syscall_64+0x67/0x90
[45050.338366]  entry_SYSCALL_64_after_hwframe+0x64/0xce
[45050.338372] RIP: 0033:0x7f724ed1a94f
[45050.338377] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <41> 89 c0 3d 00 f0 ff ff 77 1f 48 8b 44 24 18 64 48 2b 04 25 28 00
[45050.338381] RSP: 002b:00007f71fffeeb20 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[45050.338386] RAX: ffffffffffffffda RBX: 00007f71fffeec90 RCX: 00007f724ed1a94f
[45050.338388] RDX: 00007f71fffeec40 RSI: 0000000000008b18 RDI: 000000000000000b
[45050.338390] RBP: 00007f71fffeec40 R08: 0000000000000007 R09: 003073303731706c
[45050.338392] R10: 0000000000000025 R11: 0000000000000246 R12: 000000000000000b
[45050.338394] R13: 0000000000000016 R14: 00007f71f40028dc R15: 00007f71ffffed00
[45050.338398]  </TASK>
[45050.338401] iwlwifi 0000:aa:00.0: Scan failed! ret -5