Backtrace

BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0 
Oops: 0000 [#1] PREEMPT SMP PTI
CPU: 0 PID: 622 Comm: kworker/0:4 Not tainted 6.8.5-301.fc40.x86_64 #1
Hardware name: Hewlett-Packard HP EliteBook 8440p/172A, BIOS 68CCU Ver. F.12 03/09/2011
Workqueue: pm pm_runtime_work
RIP: 0010:serial8250_tx_chars+0xd2/0x280
Code: 5e 00 a8 20 0f 84 a1 01 00 00 41 83 ec 01 48 63 85 8c 01 00 00 45 85 e4 0f 8e ab 01 00 00 48 8b 95 80 01 00 00 31 f6 48 89 df <0f> b6 14 02 48 8b 43 20 e8 a1 59 5e 00 f6 83 4c 02 00 00 20 74 11
RSP: 0018:ffff9a6900607d30 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffffffffa0342b20 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffa0342b20
RBP: ffff88bd037e46e0 R08: ffff88bd0d6c67c0 R09: ffff88bd0d6c6800
R10: 0000000000000003 R11: 0000000000000003 R12: 0000000000000010
R13: ffff88bd07adc0e4 R14: 0000000000000000 R15: ffff88bd0dad2780
FS:  0000000000000000(0000) GS:ffff88be33c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000001e8422002 CR4: 00000000000206f0
Call Trace:
 <TASK>
 ? __die+0x23/0x70
 ? page_fault_oops+0x174/0x530
 ? exc_page_fault+0x7f/0x180
 ? asm_exc_page_fault+0x26/0x30
 ? serial8250_tx_chars+0xd2/0x280
 serial8250_start_tx+0x1a8/0x1e0
 serial_port_runtime_suspend+0x83/0xc0
 ? __pfx_serial_port_runtime_suspend+0x10/0x10
 __rpm_callback+0x44/0x170
 ? __pfx_serial_port_runtime_suspend+0x10/0x10
 rpm_callback+0x5d/0x70
 ? __pfx_serial_port_runtime_suspend+0x10/0x10
 rpm_suspend+0x11e/0x6c0
 ? kernfs_notify_workfn+0x36/0x210
 pm_runtime_work+0x98/0xb0
 process_one_work+0x170/0x330
 worker_thread+0x273/0x3c0
 ? __pfx_worker_thread+0x10/0x10
 kthread+0xe8/0x120
 ? __pfx_kthread+0x10/0x10
 ret_from_fork+0x34/0x50
 ? __pfx_kthread+0x10/0x10
 ret_from_fork_asm+0x1b/0x30
 </TASK>
Modules linked in: uinput snd_seq_dummy snd_hrtimer rfcomm nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables qrtr bnep intel_powerclamp coretemp uvcvideo kvm_intel mei_pxp snd_hda_codec_hdmi uvc mei_wdt snd_ctl_led ledtrig_audio ppdev iTCO_wdt snd_hda_codec_idt snd_hda_codec_generic snd_hda_intel intel_pmc_bxt videobuf2_vmalloc kvm sunrpc iTCO_vendor_support videobuf2_memops btusb videobuf2_v4l2 btrtl btintel irqbypass videobuf2_common snd_intel_dspcfg iwldvm btbcm intel_cstate snd_intel_sdw_acpi mac80211 btmtk videodev hp_wmi intel_uncore bluetooth mc snd_hda_codec libarc4 sparse_keymap platform_profile iwlwifi wmi_bmof pcspkr snd_hda_core snd_hwdep intel_ips acpi_cpufreq snd_seq cfg80211 snd_seq_device binfmt_misc snd_pcm mei_me snd_timer rfkill snd mei lpc_ich pktcdvd soundcore parport_pc parport hp_accel tpm_infineon
 lis3lv02d joydev loop nfnetlink zram pata_pcmcia i915 crc32c_intel sha512_ssse3 sdhci_pci i2c_algo_bit cqhci drm_buddy sha256_ssse3 ttm firewire_ohci sha1_ssse3 sdhci e1000e drm_display_helper mmc_core firewire_core yenta_socket video crc_itu_t cec wmi serio_raw ip6_tables ip_tables fuse
CR2: 0000000000000000