Backtrace

BUG: kernel NULL pointer dereference, address: 0000000000000030
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD 0 P4D 0 
Oops: 0002 [#1] PREEMPT SMP NOPTI
CPU: 2 PID: 5908 Comm: Isolated Web Co Not tainted 6.6.6-200.fc39.x86_64 #1
Hardware name: Onda technology corporation A320IPC/A320IPC, BIOS 5.14 12/17/2019
RIP: 0010:__sys_sendmsg+0x6/0xd0
Code: 50 0f 10 85 20 fe ff ff 43 0f 11 44 34 40 0f 10 85 e0 fd ff ff 0f 10 8d f0 fd ff ff 0f 10 95 00 fe ff ff 0f 10 9d 10 fe ff ff <43> 0f 11 5c 34 30 43 0f 11 54 49 89 f4 55 53 89 d3 89 ca b9 0d 00
RSP: 0018:ffffc9000bd4fec8 EFLAGS: 00010207
RAX: ffffffff9ed3d4d0 RBX: ffffc9000bd4ff58 RCX: 0000000000000001
RDX: 0000000000000040 RSI: 00007ffdff826500 RDI: 0000000000000003
RBP: ffffc9000bd4ff48 R08: 0000000000000040 R09: 00007ffdff826500
R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fd5d0a5c780(0000) GS:ffff888410a80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000030 CR3: 0000000294078000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 ? __die+0x23/0x70
 ? page_fault_oops+0x171/0x4e0
 ? task_tick_fair+0x40/0x450
 ? exc_page_fault+0x7f/0x180
 ? asm_exc_page_fault+0x26/0x30
 ? __pfx___x64_sys_sendmsg+0x10/0x10
 ? __sys_sendmsg+0x6/0xd0
 ? __pfx___x64_sys_sendmsg+0x10/0x10
 do_syscall_64+0x60/0x90
 ? srso_return_thunk+0x5/0x10
 ? srso_return_thunk+0x5/0x10
 ? sched_clock_cpu+0xf/0x190
 ? srso_return_thunk+0x5/0x10
 ? irqtime_account_irq+0x40/0xc0
 ? srso_return_thunk+0x5/0x10
 ? __irq_exit_rcu+0x4b/0xc0
 entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7fd5d0735a5b
Code: 48 89 e5 48 83 ec 20 89 55 ec 48 89 75 f0 89 7d f8 e8 c9 2f f7 ff 8b 55 ec 48 8b 75 f0 41 89 c0 8b 7d f8 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 2d 44 89 c7 48 89 45 f8 e8 21 30 f7 ff 48 8b
RSP: 002b:00007ffdff826440 EFLAGS: 00000293 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fd5d0466460 RCX: 00007fd5d0735a5b
RDX: 0000000000000040 RSI: 00007ffdff826500 RDI: 0000000000000003
RBP: 00007ffdff826460 R08: 0000000000000000 R09: 0000000000000048
R10: 00007fd587bf440c R11: 0000000000000293 R12: 0000000000000000
R13: 000000000000244c R14: 00007ffdff826500 R15: 0000000000000000
 </TASK>
Modules linked in: rfcomm snd_seq_dummy snd_hrtimer 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 nfnetlink qrtr bnep sunrpc binfmt_misc iwlmvm mac80211 snd_hda_codec_realtek intel_rapl_msr snd_hda_codec_generic intel_rapl_common libarc4 snd_hda_codec_hdmi ledtrig_audio edac_mce_amd snd_hda_intel snd_intel_dspcfg vfat snd_intel_sdw_acpi fat snd_hda_codec iwlwifi btusb snd_hda_core kvm btrtl snd_hwdep snd_seq irqbypass btintel btbcm snd_seq_device btmtk rapl snd_pcm wmi_bmof cfg80211 bluetooth snd_timer snd acpi_cpufreq pcspkr i2c_piix4 k10temp soundcore rfkill joydev gpio_amdpt gpio_generic loop zram amdgpu crct10dif_pclmul crc32_pclmul crc32c_intel i2c_algo_bit polyval_clmulni polyval_generic drm_ttm_helper ttm drm_exec drm_suballoc_helper amdxcp drm_buddy ghash_clmulni_intel sha512_ssse3 gpu_sched
 drm_display_helper uas sha256_ssse3 ccp sha1_ssse3 usb_storage serio_raw r8169 sp5100_tco cec video wmi scsi_dh_rdac scsi_dh_emc scsi_dh_alua ip6_tables ip_tables dm_multipath fuse
CR2: 0000000000000030