Kernel panics at copy_from_kernel_nofault() due to page fault.

Issue

• Kernel gets panic with below stack showing in kernel ring buffer.

[4052886.480834] BUG: unable to handle page fault for address: ffffffffff600022
[4052886.481198] #PF: supervisor read access in kernel mode
[4052886.481426] #PF: error_code(0x0000) - not-present page
[4052886.481655] PGD 1575a15067 P4D 1575a15067 PUD 1575a17067 PMD 1575a19067 PTE 0
[4052886.481973] Oops: 0000 [#1] PREEMPT SMP PTI
[4052886.482165] CPU: 20 PID: 942932 Comm: cluster-kube-ap Kdump: loaded Not tainted 5.14.0-284.66.1.el9_2.x86_64 #1
[4052886.482598] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 11/12/2020
[4052886.483050] RIP: 0010:copy_from_kernel_nofault+0x3b/0xf0
[4052886.483290] Code: f3 48 89 d6 48 89 df e8 b3 d6 d9 ff 84 c0 0f 84 b3 00 00 00 65 48 8b 04 25 40 8f 01 00 83 80 08 15 00 00 01 49 83 fc 07 76 19 <48> 8b 03 48 89 45 00 49 83 ec 08 48 83 c5 08 48 83 c3 08 49 83 fc
[4052886.484080] RSP: 0018:ffffb1a295ef7d28 EFLAGS: 00010202
[4052886.484310] RAX: ffff9be0888e0000 RBX: ffffffffff600022 RCX: 0000000000000010
[4052886.484616] RDX: 0000000000000008 RSI: 0000000000000008 RDI: ffffffffff600022
[4052886.484922] RBP: ffffb1a295ef7da8 R08: 0000000000000001 R09: 0000000000000000
[4052886.485230] R10: 0000000000000000 R11: ffff9be0888e0010 R12: 0000000000000008
[4052886.485535] R13: 00000000059b4380 R14: 0000000000000000 R15: ffffb1a295ef7e30
[4052886.485844] FS:  00007fc304ff9700(0000) GS:ffff9be69fd00000(0000) knlGS:0000000000000000
[4052886.486200] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[4052886.486468] CR2: ffffffffff600022 CR3: 0000001c67694002 CR4: 00000000007706e0
[4052886.486792] PKRU: 55555554
[4052886.486919] Call Trace:
[4052886.487038]  <TASK>
[4052886.487146]  bpf_probe_read_kernel+0x18/0x50
[4052886.487348]  bpf_prog_0cebbd2cf7d705f9_accept4_x+0x2e3/0x15a5
[4052886.487609]  ? copy_from_kernel_nofault+0x1d/0xf0
[4052886.487826]  ? bpf_probe_read_kernel+0x18/0x50
[4052886.488026]  ? bpf_prog_9ac386c2cb2749fa_sys_exit+0x2c7/0x539
[4052886.488281]  bpf_trace_run2+0x36/0xa0
[4052886.488449]  syscall_exit_work+0xb0/0x150
[4052886.488640]  syscall_exit_to_user_mode+0x9/0x40
[4052886.488847]  do_syscall_64+0x69/0x90
[4052886.489012]  ? arch_do_signal_or_restart+0xef/0x100
[4052886.489232]  ? exit_to_user_mode_loop+0x9c/0x130
[4052886.489439]  ? exit_to_user_mode_prepare+0xb6/0x100
[4052886.489656]  ? sysvec_reschedule_ipi+0x34/0x110
[4052886.489860]  entry_SYSCALL_64_after_hwframe+0x64/0xce
[4052886.490087] RIP: 0033:0x41abce
[4052886.490230] Code: e8 0d 25 ff 1f 00 00 48 8b 94 c2 00 40 10 00 48 89 f0 eb 02 31 d2 48 89 54 24 20 90 48 85 d2 0f 84 8e 00 00 00 90 40 8a 72 63 <40> 80 fe 01 75 12 4c 8b 42 18 4c 39 c0 72 09 0f 1f 00 48 39 42 70
[4052886.491017] RSP: 002b:00007fc304ff8cf8 EFLAGS: 00000202
[4052886.491250] RAX: 000000c000b36870 RBX: 000000c00027a120 RCX: 0000000000000078
[4052886.492452] RDX: 00007fc35c20cd68 RSI: 000000c000b36801 RDI: 0000000000000012
[4052886.493471] RBP: 00007fc304ff8d20 R08: 0000000000000078 R09: 00000000008bc750
[4052886.494447] R10: 000000c000b36870 R11: 0000000000000010 R12: 0000000000000004
[4052886.495427] R13: 0000000000000000 R14: 000000c0009e8d00 R15: 000000c0008d8000
[4052886.496400]  </TASK>
[4052886.497155] Modules linked in: veth nf_conntrack_netlink xt_recent xt_statistic xt_nat xt_addrtype xt_mark xt_MASQUERADE nft_chain_nat ipt_REJECT nf_reject_ipv4 xt_CT xt_conntrack xt_comment nft_compat nft_counter nf_tables overlay rfkill vxlan ip6_udp_tunnel udp_tunnel nfnetlink_cttimeout nfnetlink openvswitch nf_conncount nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ib_core vsock_loopback vmw_vsock_virtio_transport_common vmw_vsock_vmci_transport vsock ext4 mbcache jbd2 intel_rapl_msr intel_rapl_common vmwgfx intel_uncore_frequency_common isst_if_mbox_msr isst_if_common nfit drm_ttm_helper ttm libnvdimm drm_kms_helper vmw_balloon syscopyarea rapl sysfillrect sysimgblt pcspkr vmw_vmci fb_sys_fops i2c_piix4 joydev drm ip_tables xfs libcrc32c dm_multipath ata_generic nvme_tcp nvme_fabrics nvme nvme_core sd_mod ata_piix nvme_common t10_pi sg crct10dif_pclmul crc32_pclmul libata crc32c_intel ghash_clmulni_intel vmxnet3 vmw_pvscsi serio_raw dm_mirror dm_region_hash dm_log dm_mod fuse
[4052886.505906] CR2: ffffffffff600022