[ 2.076469] ip (256) used greatest stack depth: 12408 bytes left [ 2.149752] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 2.149850] #PF: supervisor write access in kernel mode [ 2.149885] #PF: error_code(0x0002) - not-present page [ 2.149915] PGD 5a06067 P4D 5a06067 PUD 46bc067 PMD 0 [ 2.149962] Oops: Oops: 0002 [#1] SMP [ 2.149992] CPU: 2 UID: 0 PID: 280 Comm: ip Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) [ 2.150050] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 2.150093] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 2.150136] 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 [ 2.150245] RSP: 0018:ffffac0ec02a3610 EFLAGS: 00010046 [ 2.150281] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000000 [ 2.150331] RDX: ffffac0ec02a3648 RSI: 0000000000000000 RDI: 0000000000000000 [ 2.150375] RBP: ffffac0ec02a3648 R08: 0000000000000006 R09: 0000000000000132 [ 2.150420] R10: ffff8b70bed2cc00 R11: 0000000000000012 R12: 0000000000000000 [ 2.150464] R13: ffffac0ec02a3740 R14: 0000000000000020 R15: 00000000ffffffff [ 2.150510] FS: 00007ff864da1800(0000) GS:ffff8b7120091000(0000) knlGS:0000000000000000 [ 2.150560] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.150602] CR2: 0000000000000000 CR3: 0000000005a22003 CR4: 0000000000772ef0 [ 2.150648] PKRU: 55555554 [ 2.150674] Call Trace: [ 2.150692] [ 2.150712] __cancel_work+0x29/0xe0 [ 2.150743] __cancel_work_sync+0x16/0x80 [ 2.150771] __dev_close_many+0x113/0x2b0 [ 2.150803] netif_close_many+0x98/0x160 [ 2.150831] ? rtnl_is_locked+0x15/0x20 [ 2.150859] unregister_netdevice_many_notify+0x1ea/0xaa0 [ 2.150895] rtnl_dellink+0x156/0x350 [ 2.150925] ? virtio_fs_enqueue_req+0x352/0x570 [ 2.150965] ? netdev_run_todo+0x63/0x550 [ 2.150993] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 2.151029] rtnetlink_rcv_msg+0x358/0x400 [ 2.151057] ? get_page_from_freelist+0x15b4/0x1770 [ 2.151092] ? rtnl_calcit.isra.0+0x110/0x110 [ 2.151127] netlink_rcv_skb+0x57/0x100 [ 2.151161] netlink_unicast+0x252/0x380 [ 2.151188] ? __alloc_skb+0xfc/0x1e0 [ 2.151216] netlink_sendmsg+0x1be/0x3e0 [ 2.151244] ____sys_sendmsg+0x132/0x260 [ 2.151276] ? copy_msghdr_from_user+0x6c/0xa0 [ 2.151311] ___sys_sendmsg+0x87/0xd0 [ 2.151340] ? do_wp_page+0x369/0xe90 [ 2.151367] ? ___pte_offset_map+0x1b/0xd0 [ 2.151396] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 2.151437] ? fsnotify_grab_connector+0x48/0x80 [ 2.151472] ? fsnotify_destroy_marks+0x29/0x150 [ 2.151508] __sys_sendmsg+0x71/0xd0 [ 2.151537] do_syscall_64+0xa4/0xfd0 [ 2.151570] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 2.151606] RIP: 0033:0x7ff864f6f1d7 [ 2.151633] 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 [ 2.151751] RSP: 002b:00007ffec7452db8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2.151801] RAX: ffffffffffffffda RBX: 00007ffec74534e0 RCX: 00007ff864f6f1d7 [ 2.151846] RDX: 0000000000000000 RSI: 00007ffec7452e20 RDI: 0000000000000005 [ 2.151890] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 2.151935] R10: 00007ff864e6bf60 R11: 0000000000000246 R12: 0000000000000002 [ 2.151979] R13: 00000000691cd9d0 R14: 0000000000499600 R15: 0000000000000000 [ 2.152024] [ 2.152044] Modules linked in: vxlan [ 2.152074] CR2: 0000000000000000 [ 2.152101] ---[ end trace 0000000000000000 ]--- [ 2.152136] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 2.152172] 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 [ 2.152281] RSP: 0018:ffffac0ec02a3610 EFLAGS: 00010046 [ 2.152319] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000000 [ 2.152363] RDX: ffffac0ec02a3648 RSI: 0000000000000000 RDI: 0000000000000000 [ 2.152408] RBP: ffffac0ec02a3648 R08: 0000000000000006 R09: 0000000000000132 [ 2.152459] R10: ffff8b70bed2cc00 R11: 0000000000000012 R12: 0000000000000000 [ 2.152503] R13: ffffac0ec02a3740 R14: 0000000000000020 R15: 00000000ffffffff [ 2.152549] FS: 00007ff864da1800(0000) GS:ffff8b7120091000(0000) knlGS:0000000000000000 [ 2.152599] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.152641] CR2: 0000000000000000 CR3: 0000000005a22003 CR4: 0000000000772ef0 [ 2.152698] PKRU: 55555554 [ 2.152718] note: ip[280] exited with irqs disabled [ 2.153020] ip (280) used greatest stack depth: 11432 bytes left WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr