[ 2.517308] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 2.517398] #PF: supervisor write access in kernel mode [ 2.517442] #PF: error_code(0x0002) - not-present page [ 2.517489] PGD 3994067 P4D 3994067 PUD 3995067 PMD 0 [ 2.517545] Oops: Oops: 0002 [#1] SMP [ 2.517582] CPU: 3 UID: 0 PID: 324 Comm: ip Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) [ 2.517666] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 2.517723] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 2.517786] 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 [ 2.517965] RSP: 0018:ffffa8dbc06ff610 EFLAGS: 00010046 [ 2.518021] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 00000000ffffffff [ 2.518103] RDX: ffffa8dbc06ff648 RSI: 0000000000000000 RDI: 0000000000000000 [ 2.518168] RBP: ffffa8dbc06ff648 R08: ffffffff8c093e00 R09: 0000000000000101 [ 2.518229] R10: ffffffff8cc080d8 R11: ffffa8dbc013cff8 R12: 0000000000000000 [ 2.518290] R13: ffffa8dbc06ff740 R14: 0000000000000020 R15: 00000000ffffffff [ 2.518364] FS: 00007f6621e09800(0000) GS:ffff92fb31911000(0000) knlGS:0000000000000000 [ 2.518429] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.518484] CR2: 0000000000000000 CR3: 000000000331f003 CR4: 0000000000772ef0 [ 2.518547] PKRU: 55555554 [ 2.518572] Call Trace: [ 2.518595] [ 2.518627] __cancel_work+0x29/0xe0 [ 2.518667] ? dev_deactivate_many+0x2c9/0x300 [ 2.518726] __cancel_work_sync+0x16/0x80 [ 2.518773] __dev_close_many+0x113/0x2b0 [ 2.518816] netif_close_many+0x98/0x160 [ 2.518856] unregister_netdevice_many_notify+0x1ea/0xaa0 [ 2.518904] rtnl_dellink+0x156/0x350 [ 2.518949] ? virtio_fs_enqueue_req+0x352/0x570 [ 2.519011] ? netdev_run_todo+0x63/0x550 [ 2.519043] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 2.519100] rtnetlink_rcv_msg+0x358/0x400 [ 2.519137] ? get_page_from_freelist+0x15b4/0x1770 [ 2.519186] ? rtnl_calcit.isra.0+0x110/0x110 [ 2.519237] netlink_rcv_skb+0x57/0x100 [ 2.519281] netlink_unicast+0x252/0x380 [ 2.519320] ? __alloc_skb+0xfc/0x1e0 [ 2.519366] netlink_sendmsg+0x1be/0x3e0 [ 2.519411] ____sys_sendmsg+0x132/0x260 [ 2.519453] ? copy_msghdr_from_user+0x6c/0xa0 [ 2.519498] ___sys_sendmsg+0x87/0xd0 [ 2.519536] ? do_wp_page+0x369/0xe90 [ 2.519574] ? ___pte_offset_map+0x1b/0xd0 [ 2.519616] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 2.519669] ? fsnotify_grab_connector+0x48/0x80 [ 2.519721] ? fsnotify_destroy_marks+0x29/0x150 [ 2.519767] __sys_sendmsg+0x71/0xd0 [ 2.519804] do_syscall_64+0xa4/0xfd0 [ 2.519850] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 2.519902] RIP: 0033:0x7f6621fd71d7 [ 2.519940] 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 [ 2.520102] RSP: 002b:00007ffc2ecf4b68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2.520169] RAX: ffffffffffffffda RBX: 00007ffc2ecf5290 RCX: 00007f6621fd71d7 [ 2.520233] RDX: 0000000000000000 RSI: 00007ffc2ecf4bd0 RDI: 0000000000000005 [ 2.520300] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000078 [ 2.520374] R10: 00007f6621ed3f60 R11: 0000000000000246 R12: 0000000000000001 [ 2.520440] R13: 00000000691cd5c5 R14: 0000000000499600 R15: 0000000000000000 [ 2.520508] [ 2.520533] Modules linked in: [ 2.520570] CR2: 0000000000000000 [ 2.520606] ---[ end trace 0000000000000000 ]--- [ 2.520649] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 2.520696] 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 [ 2.520853] RSP: 0018:ffffa8dbc06ff610 EFLAGS: 00010046 [ 2.520909] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 00000000ffffffff [ 2.520966] RDX: ffffa8dbc06ff648 RSI: 0000000000000000 RDI: 0000000000000000 [ 2.521043] RBP: ffffa8dbc06ff648 R08: ffffffff8c093e00 R09: 0000000000000101 [ 2.521113] R10: ffffffff8cc080d8 R11: ffffa8dbc013cff8 R12: 0000000000000000 [ 2.521178] R13: ffffa8dbc06ff740 R14: 0000000000000020 R15: 00000000ffffffff [ 2.521248] FS: 00007f6621e09800(0000) GS:ffff92fb31911000(0000) knlGS:0000000000000000 [ 2.521318] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.521383] CR2: 0000000000000000 CR3: 000000000331f003 CR4: 0000000000772ef0 [ 2.521450] PKRU: 55555554 [ 2.521475] note: ip[324] exited with irqs disabled [ 2.521702] ip (324) used greatest stack depth: 11432 bytes left WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr