[48753.207907] kernel tried to execute NX-protected page - exploit attempt? (uid: 0)
[48753.208140] BUG: unable to handle page fault for address: ffff8b3d2cfe4670
[48753.208337] #PF: supervisor instruction fetch in kernel mode
[48753.208497] #PF: error_code(0x0011) - permissions violation
[48753.208655] PGD 3fee01067 P4D 3fee01067 PUD 40aef9063 PMD 3ecf0f063 PTE 80000003ecfe4163
[48753.208890] Oops: 0011 [#1] PREEMPT SMP NOPTI
[48753.209015] CPU: 3 PID: 1779 Comm: nfsd Not tainted 5.6.15-arch1-1 #1
[48753.209196] Hardware name: Supermicro H8DM8-2/H8DM8-2, BIOS 080014  10/13/2008
[48753.209405] RIP: 0010:0xffff8b3d2cfe4670
[48753.209517] Code: ff ff 40 46 fe 2c 3d 8b ff ff 50 46 fe 2c 3d 8b ff ff 50 46 fe 2c 3d 8b ff ff 60 46 fe 2c 3d 8b ff ff 60 46 fe 2c 3d 8b ff ff <70> 46 fe 2c 3d 8b ff ff 70 46 fe 2c 3d 8b ff ff 80 46 fe 2c 3d 8b
[48753.210043] RSP: 0018:ffffa41c42c3f998 EFLAGS: 00010202
[48753.210192] RAX: ffff8b3d2cfe4670 RBX: ffff8b3d2cfe4640 RCX: 0000000000000034
[48753.210392] RDX: 0000000000000000 RSI: ffff8b3d2cfe4678 RDI: ffff8b398bf610e0
[48753.210594] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
[48753.210795] R10: 000000000000fe88 R11: 0000000000000003 R12: ffff8b398bf610e0
[48753.210996] R13: 0000000000000000 R14: ffff8b3d2cfe4658 R15: 0000000000000001
[48753.211199] FS:  0000000000000000(0000) GS:ffff8b3d4fcc0000(0000) knlGS:0000000000000000
[48753.211427] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[48753.211589] CR2: ffff8b3d2cfe4670 CR3: 00000003ecf8c000 CR4: 00000000000006e0
[48753.211791] Call Trace:
[48753.211872]  ? __bpf_prog_run_save_cb+0x5b/0x130
[48753.212007]  ? __cgroup_bpf_run_filter_skb+0x1c7/0x230
[48753.212157]  ? ip_finish_output+0x68/0xa0
[48753.212270]  ? ip_output+0x76/0x130
[48753.212370]  ? __ip_finish_output+0x1e0/0x1e0
[48753.212499]  ? __ip_queue_xmit+0x186/0x440
[48753.212618]  ? __tcp_transmit_skb+0x53e/0xbf0
[48753.212744]  ? tcp_write_xmit+0x391/0x11b0
[48753.212864]  ? __tcp_push_pending_frames+0x32/0xf0
[48753.213008]  ? do_tcp_sendpages+0x5f8/0x630
[48753.213130]  ? tcp_sendpage+0x48/0x80
[48753.213233]  ? inet_sendpage+0x52/0x90
[48753.213342]  ? kernel_sendpage+0x1a/0x30
[48753.213506]  ? svc_send_common+0x62/0x150 [sunrpc]
[48753.213687]  ? svc_sendto+0xd7/0x240 [sunrpc]
[48753.213856]  ? svc_tcp_sendto+0x36/0x50 [sunrpc]
[48753.214022]  ? svc_send+0x7b/0x190 [sunrpc]
[48753.214177]  ? nfsd+0xed/0x150 [nfsd]
[48753.214304]  ? nfsd_destroy+0x60/0x60 [nfsd]
[48753.214427]  ? kthread+0x117/0x130
[48753.214523]  ? __kthread_bind_mask+0x60/0x60
[48753.214647]  ? ret_from_fork+0x22/0x40
[48753.214756] Modules linked in: xt_nat veth xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype br_netfilter bridge stp llc rpcsec_gss_krb5 overlay xt_tcpudp iptable_filter iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 w83793 w83627hf hwmon_vid nls_iso8859_1 nls_cp437 vfat fat radeon dm_mod i2c_algo_bit ttm amd64_edac_mod edac_mce_amd kvm_amd drm_kms_helper ccp cec rng_core rc_core kvm syscopyarea sysfillrect irqbypass sysimgblt fb_sys_fops ipmi_si ipmi_devintf ipmi_msghandler nv_tco pcspkr k10temp forcedeth joydev i2c_nforce2 input_leds mousedev evdev mac_hid acpi_cpufreq nfsd auth_rpcgss nfsv4 dns_resolver nfs_acl nfs lockd grace sunrpc fscache sg drm agpgart ip_tables x_tables ext4 crc16 mbcache jbd2 btrfs blake2b_generic libcrc32c crc32c_generic xor raid6_pq sr_mod cdrom hid_generic usbhid hid ohci_pci mpt3sas 3w_9xxx raid_class scsi_transport_sas ata_generic pata_acpi ehci_pci pata_amd ehci_hcd ohci_hcd sata_nv
[48753.264278] CR2: ffff8b3d2cfe4670
[48753.271554] ---[ end trace 6df0f1f5d9c5fae0 ]---
[48753.278782] RIP: 0010:0xffff8b3d2cfe4670
[48753.285940] Code: ff ff 40 46 fe 2c 3d 8b ff ff 50 46 fe 2c 3d 8b ff ff 50 46 fe 2c 3d 8b ff ff 60 46 fe 2c 3d 8b ff ff 60 46 fe 2c 3d 8b ff ff <70> 46 fe 2c 3d 8b ff ff 70 46 fe 2c 3d 8b ff ff 80 46 fe 2c 3d 8b
[48753.300857] RSP: 0018:ffffa41c42c3f998 EFLAGS: 00010202
[48753.308191] RAX: ffff8b3d2cfe4670 RBX: ffff8b3d2cfe4640 RCX: 0000000000000034
[48753.315462] RDX: 0000000000000000 RSI: ffff8b3d2cfe4678 RDI: ffff8b398bf610e0
[48753.322647] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
[48753.329787] R10: 000000000000fe88 R11: 0000000000000003 R12: ffff8b398bf610e0
[48753.336902] R13: 0000000000000000 R14: ffff8b3d2cfe4658 R15: 0000000000000001
[48753.344025] FS:  0000000000000000(0000) GS:ffff8b3d4fcc0000(0000) knlGS:0000000000000000
[48753.351244] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[48753.358452] CR2: ffff8b3d2cfe4670 CR3: 00000003ecf8c000 CR4: 00000000000006e0
[48753.365725] note: nfsd[1779] exited with preempt_count 1