[ 3.136421] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 3.136510] #PF: supervisor write access in kernel mode [ 3.136555] #PF: error_code(0x0002) - not-present page [ 3.136601] PGD 3080067 P4D 3080067 PUD 4d27067 PMD 0 [ 3.136651] Oops: Oops: 0002 [#1] SMP [ 3.136688] CPU: 2 UID: 0 PID: 271 Comm: ip Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) [ 3.136765] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 3.136827] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 3.136881] 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 [ 3.137037] RSP: 0018:ffffbad34065f610 EFLAGS: 00010046 [ 3.137082] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 00000000ffffffff [ 3.137146] RDX: ffffbad34065f648 RSI: 0000000000000000 RDI: 0000000000000000 [ 3.137219] RBP: ffffbad34065f648 R08: ffffffff84093e00 R09: 0000000000000101 [ 3.137284] R10: ffffffff84c080d8 R11: ffffbad340110ff8 R12: 0000000000000000 [ 3.137348] R13: ffffbad34065f740 R14: 0000000000000020 R15: 00000000ffffffff [ 3.137418] FS: 00007f556e2e2800(0000) GS:ffff95eeb9891000(0000) knlGS:0000000000000000 [ 3.137484] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3.137539] CR2: 0000000000000000 CR3: 0000000004d1d005 CR4: 0000000000772ef0 [ 3.137606] PKRU: 55555554 [ 3.137630] Call Trace: [ 3.137653] [ 3.137679] __cancel_work+0x29/0xe0 [ 3.137718] ? dev_deactivate_many+0x2c9/0x300 [ 3.137769] __cancel_work_sync+0x16/0x80 [ 3.137805] __dev_close_many+0x113/0x2b0 [ 3.137847] netif_close_many+0x98/0x160 [ 3.137882] unregister_netdevice_many_notify+0x10c/0xaa0 [ 3.137927] rtnl_dellink+0x156/0x350 [ 3.137972] ? virtio_fs_enqueue_req+0x352/0x570 [ 3.138022] ? netdev_run_todo+0x63/0x550 [ 3.138058] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 3.138103] rtnetlink_rcv_msg+0x358/0x400 [ 3.138139] ? get_page_from_freelist+0x15b4/0x1770 [ 3.138189] ? rtnl_calcit.isra.0+0x110/0x110 [ 3.138234] netlink_rcv_skb+0x57/0x100 [ 3.138276] netlink_unicast+0x252/0x380 [ 3.138310] ? __alloc_skb+0xfc/0x1e0 [ 3.138350] netlink_sendmsg+0x1be/0x3e0 [ 3.138386] ____sys_sendmsg+0x132/0x260 [ 3.138427] ? copy_msghdr_from_user+0x6c/0xa0 [ 3.138472] ___sys_sendmsg+0x87/0xd0 [ 3.138507] ? do_wp_page+0x369/0xe90 [ 3.138542] ? ___pte_offset_map+0x1b/0xd0 [ 3.138582] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 3.138639] ? fsnotify_grab_connector+0x48/0x80 [ 3.138687] ? fsnotify_destroy_marks+0x29/0x150 [ 3.138733] __sys_sendmsg+0x71/0xd0 [ 3.138771] do_syscall_64+0xa4/0xfd0 [ 3.138814] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 3.138863] RIP: 0033:0x7f556e4b01d7 [ 3.138898] 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 [ 3.139045] RSP: 002b:00007ffd685646f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3.139114] RAX: ffffffffffffffda RBX: 00007ffd68564e20 RCX: 00007f556e4b01d7 [ 3.139174] RDX: 0000000000000000 RSI: 00007ffd68564760 RDI: 0000000000000005 [ 3.139241] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 3.139302] R10: 00007f556e3acf60 R11: 0000000000000246 R12: 0000000000000002 [ 3.139370] R13: 00000000691ccc77 R14: 0000000000499600 R15: 0000000000000000 [ 3.139437] [ 3.139461] Modules linked in: [ 3.139503] CR2: 0000000000000000 [ 3.139538] ---[ end trace 0000000000000000 ]--- [ 3.139583] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 3.139630] 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 [ 3.139779] RSP: 0018:ffffbad34065f610 EFLAGS: 00010046 [ 3.139826] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 00000000ffffffff [ 3.139892] RDX: ffffbad34065f648 RSI: 0000000000000000 RDI: 0000000000000000 [ 3.139959] RBP: ffffbad34065f648 R08: ffffffff84093e00 R09: 0000000000000101 [ 3.140025] R10: ffffffff84c080d8 R11: ffffbad340110ff8 R12: 0000000000000000 [ 3.140090] R13: ffffbad34065f740 R14: 0000000000000020 R15: 00000000ffffffff [ 3.140154] FS: 00007f556e2e2800(0000) GS:ffff95eeb9891000(0000) knlGS:0000000000000000 [ 3.140219] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3.140278] CR2: 0000000000000000 CR3: 0000000004d1d005 CR4: 0000000000772ef0 [ 3.140345] PKRU: 55555554 [ 3.140372] note: ip[271] exited with irqs disabled [ 3.140779] ip (271) used greatest stack depth: 11432 bytes left WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr