Wireguard NULL pointer dereference in 5.10.0-21 Bullseye

Apr 20 00:30:20 sn02 kernel: BUG: kernel NULL pointer dereference, address: 0000000000000498
Apr 20 00:30:20 sn02 kernel: #PF: supervisor read access in kernel mode
Apr 20 00:30:20 sn02 kernel: #PF: error_code(0x0000) - not-present page
Apr 20 00:30:20 sn02 kernel: PGD 0 P4D 0
Apr 20 00:30:20 sn02 kernel: Oops: 0000 [#1] SMP PTI
Apr 20 00:30:20 sn02 kernel: CPU: 6 PID: 18454 Comm: wg Tainted: G           OE     5.10.0-21-amd64 #1 Debian 5.10.162-1
Apr 20 00:30:20 sn02 kernel: Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.1-0-g3208b098f51a-prebuilt.qemu.org 04/01/2014
Apr 20 00:30:20 sn02 kernel: RIP: 0010:wg_get_device_dump+0x1db/0x96b [wireguard]
Apr 20 00:30:20 sn02 kernel: Code: cb af 5e c2 48 89 ef 89 c3 e8 a1 67 20 c2 85 db 0f 85 95 06 00 00 4d 85 e4 0f 84 76 03 00 00 48 8b 3c 24 49 8b 16 48 8b 47 60 <48> 8b 92 98 04 00 00 48 85 c0 0f 85 df 02 00 00 48 89 57 60 41 8b
Apr 20 00:30:20 sn02 kernel: RSP: 0018:ffffba9c00fdfb28 EFLAGS: 00010293
Apr 20 00:30:20 sn02 kernel: RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff933d37ccdb98
Apr 20 00:30:20 sn02 kernel: RDX: 0000000000000000 RSI: 00000000fffffe01 RDI: ffff933d0deb8b40
Apr 20 00:30:20 sn02 kernel: RBP: ffff933d37ccdbd8 R08: 0000000000000000 R09: ffff933d11172f60
Apr 20 00:30:20 sn02 kernel: R10: 0000000000000000 R11: 0000000000000000 R12: ffffffffffffffc8
Apr 20 00:30:20 sn02 kernel: R13: ffffba9c00fdfbf8 R14: ffff933d37ccdaf0 R15: ffff933d3324b000
Apr 20 00:30:20 sn02 kernel: FS:  00007fba1d809580(0000) GS:ffff933d7db80000(0000) knlGS:0000000000000000
Apr 20 00:30:20 sn02 kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Apr 20 00:30:20 sn02 kernel: CR2: 0000000000000498 CR3: 000000000263c003 CR4: 0000000000020ee0
Apr 20 00:30:20 sn02 kernel: Call Trace:
Apr 20 00:30:20 sn02 kernel:  ? __mutex_remove_waiter+0x15/0x60
Apr 20 00:30:20 sn02 kernel:  genl_lock_dumpit+0x2e/0x50
Apr 20 00:30:20 sn02 kernel:  netlink_dump+0x18c/0x350
Apr 20 00:30:20 sn02 kernel:  netlink_recvmsg+0x246/0x420
Apr 20 00:30:20 sn02 kernel:  ____sys_recvmsg+0x87/0x180
Apr 20 00:30:20 sn02 kernel:  ? __check_object_size+0x4a/0x160
Apr 20 00:30:20 sn02 kernel:  ? _copy_from_user+0x28/0x60
Apr 20 00:30:20 sn02 kernel:  ? iovec_from_user+0x5b/0x180
Apr 20 00:30:20 sn02 kernel:  ___sys_recvmsg+0x82/0x110
Apr 20 00:30:20 sn02 kernel:  ? mem_cgroup_charge_statistics.constprop.0+0x21/0x60
Apr 20 00:30:20 sn02 kernel:  ? page_add_new_anon_rmap+0xa3/0x1f0
Apr 20 00:30:20 sn02 kernel:  ? handle_mm_fault+0x105b/0x1c00
Apr 20 00:30:20 sn02 kernel:  __sys_recvmsg+0x56/0xa0
Apr 20 00:30:20 sn02 kernel:  do_syscall_64+0x33/0x80
Apr 20 00:30:20 sn02 kernel:  entry_SYSCALL_64_after_hwframe+0x61/0xc6
Apr 20 00:30:20 sn02 kernel: RIP: 0033:0x7fba1d730da3
Apr 20 00:30:20 sn02 kernel: Code: 8b 15 f1 10 0d 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b5 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 2f 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 89 54 24 1c 48
Apr 20 00:30:20 sn02 kernel: RSP: 002b:00007fff3f0bca78 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
Apr 20 00:30:20 sn02 kernel: RAX: ffffffffffffffda RBX: 000055a1c1ccf2a0 RCX: 00007fba1d730da3
Apr 20 00:30:20 sn02 kernel: RDX: 0000000000000000 RSI: 00007fff3f0bcaa0 RDI: 0000000000000003
Apr 20 00:30:20 sn02 kernel: RBP: 000055a1c0e61280 R08: 0000000000000001 R09: 0000000000000001
Apr 20 00:30:20 sn02 kernel: R10: 00000000000000d0 R11: 0000000000000246 R12: 000055a1c0e6a9e0
Apr 20 00:30:20 sn02 kernel: R13: 000055a1c1ccf320 R14: 0000000000000000 R15: 000055a1c1ccf320
Apr 20 00:30:20 sn02 kernel: Modules linked in: tun ip6table_mangle vxlan xt_comment ip6table_filter ip6_tables xt_mark 8021q iptable_mangle garp mrp ipt_REJECT nf_reject_ipv4 xt_tcpudp xt_state xt_conntrack iptable_filter nf_conntrack_netlink ebtable_filter ebtables nfnetlink kvm_intel kvm irqbypass ghash_clmulni_intel wireguard curve25519_x86_64 aesni_intel libchacha20poly1305 chacha_x86_64 poly1305_x86_64 libaes ip6_udp_tunnel crypto_simd udp_tunnel cryptd libcurve25519_generic glue_helper libchacha bochs_drm drm_vram_helper drm_ttm_helper ttm ip_gre ip_tunnel gre serio_raw pcspkr nf_conntrack drm_kms_helper evdev joydev nf_defrag_ipv6 nf_defrag_ipv4 virtio_console sg virtio_balloon cec batman_adv(OE) bridge stp llc button cfg80211 drm rfkill libcrc32c fuse efi_pstore configfs qemu_fw_cfg ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 crc32c_generic hid_generic usbhid hid sd_mod t10_pi crc_t10dif crct10dif_generic sr_mod cdrom virtio_net net_failover virtio_scsi failover ata_generic ata_piix
Apr 20 00:30:20 sn02 kernel:  uhci_hcd libata ehci_hcd usbcore scsi_mod crct10dif_pclmul crct10dif_common crc32_pclmul psmouse virtio_pci crc32c_intel virtio_ring usb_common i2c_piix4 virtio floppy
Apr 20 00:30:20 sn02 kernel: CR2: 0000000000000498
Apr 20 00:30:20 sn02 kernel: ---[ end trace a47d17025a617a7b ]---
Apr 20 00:30:20 sn02 kernel: RIP: 0010:wg_get_device_dump+0x1db/0x96b [wireguard]
Apr 20 00:30:20 sn02 kernel: Code: cb af 5e c2 48 89 ef 89 c3 e8 a1 67 20 c2 85 db 0f 85 95 06 00 00 4d 85 e4 0f 84 76 03 00 00 48 8b 3c 24 49 8b 16 48 8b 47 60 <48> 8b 92 98 04 00 00 48 85 c0 0f 85 df 02 00 00 48 89 57 60 41 8b
Apr 20 00:30:20 sn02 kernel: RSP: 0018:ffffba9c00fdfb28 EFLAGS: 00010293
Apr 20 00:30:20 sn02 kernel: RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff933d37ccdb98
Apr 20 00:30:20 sn02 kernel: RDX: 0000000000000000 RSI: 00000000fffffe01 RDI: ffff933d0deb8b40
Apr 20 00:30:20 sn02 kernel: RBP: ffff933d37ccdbd8 R08: 0000000000000000 R09: ffff933d11172f60
Apr 20 00:30:20 sn02 kernel: R10: 0000000000000000 R11: 0000000000000000 R12: ffffffffffffffc8
Apr 20 00:30:20 sn02 kernel: R13: ffffba9c00fdfbf8 R14: ffff933d37ccdaf0 R15: ffff933d3324b000
Apr 20 00:30:20 sn02 kernel: FS:  00007fba1d809580(0000) GS:ffff933d7db80000(0000) knlGS:0000000000000000
Apr 20 00:30:20 sn02 kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Apr 20 00:30:20 sn02 kernel: CR2: 0000000000000498 CR3: 000000000263c003 CR4: 0000000000020ee0