[ 11.889713] u32 classifier [ 11.889770] input device check on [ 11.889842] Actions configured [ 12.043851] gre: GRE over IPv4 demultiplexer driver [ 12.045454] ip_gre: GRE over IPv4 tunneling driver [ 12.180657] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 12.180750] #PF: supervisor write access in kernel mode [ 12.180809] #PF: error_code(0x0002) - not-present page [ 12.180860] PGD 9081067 P4D 9081067 PUD 909f067 PMD 0 [ 12.180916] Oops: Oops: 0002 [#1] SMP [ 12.180958] CPU: 2 UID: 0 PID: 1236 Comm: ip Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) [ 12.181046] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.181109] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 12.181171] Code: 83 e6 01 41 57 41 56 4c 8d 77 20 41 55 41 54 41 89 f4 55 48 89 d5 53 48 89 fb 9c 58 fa 48 89 45 00 45 85 e4 0f 85 8a 00 00 00 48 0f ba 2b 00 41 0f 92 c5 72 0e 5b 44 89 e8 5d 41 5c 41 5d 41 [ 12.181330] RSP: 0018:ffffb140802a3610 EFLAGS: 00010046 [ 12.181381] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 00000000ffffffff [ 12.181454] RDX: ffffb140802a3648 RSI: 0000000000000000 RDI: 0000000000000000 [ 12.181527] RBP: ffffb140802a3648 R08: ffffffffb8893e00 R09: 0000000000000101 [ 12.181600] R10: ffffffffb94080d8 R11: ffffb14080110ff8 R12: 0000000000000000 [ 12.181673] R13: ffffb140802a3740 R14: 0000000000000020 R15: 00000000ffffffff [ 12.181756] FS: 00007fc00e60e800(0000) GS:ffff952c85091000(0000) knlGS:0000000000000000 [ 12.181841] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 12.181902] CR2: 0000000000000000 CR3: 0000000009080005 CR4: 0000000000772ef0 [ 12.181976] PKRU: 55555554 [ 12.182012] Call Trace: [ 12.182044] [ 12.182075] __cancel_work+0x29/0xe0 [ 12.182120] ? dev_deactivate_many+0x2c9/0x300 [ 12.182179] __cancel_work_sync+0x16/0x80 [ 12.182221] __dev_close_many+0x113/0x2b0 [ 12.182269] netif_close_many+0x98/0x160 [ 12.182309] unregister_netdevice_many_notify+0x1ea/0xaa0 [ 12.182367] rtnl_dellink+0x156/0x350 [ 12.182419] ? virtio_fs_enqueue_req+0x352/0x570 [ 12.182477] ? netdev_run_todo+0x63/0x550 [ 12.182516] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 12.182568] rtnetlink_rcv_msg+0x358/0x400 [ 12.182616] ? get_page_from_freelist+0x15b4/0x1770 [ 12.182671] ? rtnl_calcit.isra.0+0x110/0x110 [ 12.182730] netlink_rcv_skb+0x57/0x100 [ 12.182778] netlink_unicast+0x252/0x380 [ 12.182821] ? __alloc_skb+0xfc/0x1e0 [ 12.182868] netlink_sendmsg+0x1be/0x3e0 [ 12.182909] ____sys_sendmsg+0x132/0x260 [ 12.182954] ? copy_msghdr_from_user+0x6c/0xa0 [ 12.183005] ___sys_sendmsg+0x87/0xd0 [ 12.183046] ? do_wp_page+0x369/0xe90 [ 12.183091] ? ___pte_offset_map+0x1b/0xd0 [ 12.183136] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 12.183205] ? fsnotify_grab_connector+0x48/0x80 [ 12.183261] ? fsnotify_destroy_marks+0x29/0x150 [ 12.183313] __sys_sendmsg+0x71/0xd0 [ 12.183355] do_syscall_64+0xa4/0xfd0 [ 12.183402] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 12.183457] RIP: 0033:0x7fc00e7dc1d7 [ 12.183497] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 [ 12.183657] RSP: 002b:00007ffc054f0898 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 12.183730] RAX: ffffffffffffffda RBX: 00007ffc054f0fc0 RCX: 00007fc00e7dc1d7 [ 12.183803] RDX: 0000000000000000 RSI: 00007ffc054f0900 RDI: 0000000000000005 [ 12.183876] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000078 [ 12.183949] R10: 00007fc00e6d8f60 R11: 0000000000000246 R12: 0000000000000001 [ 12.184022] R13: 00000000691cbdb1 R14: 0000000000499600 R15: 0000000000000000 [ 12.184096] [ 12.184123] Modules linked in: ip_gre gre cls_u32 sch_htb [ 12.184182] CR2: 0000000000000000 [ 12.184221] ---[ end trace 0000000000000000 ]--- [ 12.184271] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 12.184328] Code: 83 e6 01 41 57 41 56 4c 8d 77 20 41 55 41 54 41 89 f4 55 48 89 d5 53 48 89 fb 9c 58 fa 48 89 45 00 45 85 e4 0f 85 8a 00 00 00 48 0f ba 2b 00 41 0f 92 c5 72 0e 5b 44 89 e8 5d 41 5c 41 5d 41 [ 12.184489] RSP: 0018:ffffb140802a3610 EFLAGS: 00010046 [ 12.184542] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 00000000ffffffff [ 12.184616] RDX: ffffb140802a3648 RSI: 0000000000000000 RDI: 0000000000000000 [ 12.184689] RBP: ffffb140802a3648 R08: ffffffffb8893e00 R09: 0000000000000101 [ 12.184762] R10: ffffffffb94080d8 R11: ffffb14080110ff8 R12: 0000000000000000 [ 12.184835] R13: ffffb140802a3740 R14: 0000000000000020 R15: 00000000ffffffff [ 12.184911] FS: 00007fc00e60e800(0000) GS:ffff952c85091000(0000) knlGS:0000000000000000 [ 12.184984] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 12.185045] CR2: 0000000000000000 CR3: 0000000009080005 CR4: 0000000000772ef0 [ 12.185119] PKRU: 55555554 [ 12.185148] note: ip[1236] exited with irqs disabled [ 12.185526] ip (1236) used greatest stack depth: 11432 bytes left WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr