[ 2.144071] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 2.144153] #PF: supervisor write access in kernel mode [ 2.144203] #PF: error_code(0x0002) - not-present page [ 2.144248] PGD 3260067 P4D 3260067 PUD 33a9067 PMD 0 [ 2.144300] Oops: Oops: 0002 [#1] SMP [ 2.144342] CPU: 0 UID: 0 PID: 277 Comm: ip Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) [ 2.144425] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 2.144484] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 2.144542] 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 [ 2.144703] RSP: 0018:ffffb491c065f610 EFLAGS: 00010046 [ 2.144750] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 00000000ffffffff [ 2.144820] RDX: ffffb491c065f648 RSI: 0000000000000000 RDI: 0000000000000000 [ 2.144893] RBP: ffffb491c065f648 R08: ffffffffa2693e00 R09: 0000000000000101 [ 2.144958] R10: ffffffffa32080d8 R11: ffffb491c0003ff8 R12: 0000000000000000 [ 2.145028] R13: ffffb491c065f740 R14: 0000000000000020 R15: 00000000ffffffff [ 2.145099] FS: 00007f6939c00800(0000) GS:ffff9f77db191000(0000) knlGS:0000000000000000 [ 2.145171] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.145228] CR2: 0000000000000000 CR3: 00000000031df003 CR4: 0000000000772ef0 [ 2.145301] PKRU: 55555554 [ 2.145324] Call Trace: [ 2.145349] [ 2.145378] __cancel_work+0x29/0xe0 [ 2.145418] ? dev_deactivate_many+0x2c9/0x300 [ 2.145468] __cancel_work_sync+0x16/0x80 [ 2.145507] __dev_close_many+0x113/0x2b0 [ 2.145547] netif_close_many+0x98/0x160 [ 2.145588] unregister_netdevice_many_notify+0x10c/0xaa0 [ 2.145636] rtnl_dellink+0x156/0x350 [ 2.145681] ? virtio_fs_enqueue_req+0x352/0x570 [ 2.145736] ? netdev_run_todo+0x63/0x550 [ 2.145776] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 2.145826] rtnetlink_rcv_msg+0x358/0x400 [ 2.145863] ? get_page_from_freelist+0x15b4/0x1770 [ 2.145915] ? rtnl_calcit.isra.0+0x110/0x110 [ 2.145963] netlink_rcv_skb+0x57/0x100 [ 2.146005] netlink_unicast+0x252/0x380 [ 2.146043] ? __alloc_skb+0xfc/0x1e0 [ 2.146085] netlink_sendmsg+0x1be/0x3e0 [ 2.146126] ____sys_sendmsg+0x132/0x260 [ 2.146165] ? copy_msghdr_from_user+0x6c/0xa0 [ 2.146213] ___sys_sendmsg+0x87/0xd0 [ 2.146249] ? do_wp_page+0x369/0xe90 [ 2.146290] ? ___pte_offset_map+0x1b/0xd0 [ 2.146326] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 2.146376] ? fsnotify_grab_connector+0x48/0x80 [ 2.146426] ? fsnotify_destroy_marks+0x29/0x150 [ 2.146479] __sys_sendmsg+0x71/0xd0 [ 2.146515] do_syscall_64+0xa4/0xfd0 [ 2.146555] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 2.146601] RIP: 0033:0x7f6939dce1d7 [ 2.146642] 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 [ 2.146805] RSP: 002b:00007ffee38b3e08 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2.146877] RAX: ffffffffffffffda RBX: 00007ffee38b4540 RCX: 00007f6939dce1d7 [ 2.146949] RDX: 0000000000000000 RSI: 00007ffee38b3e70 RDI: 0000000000000005 [ 2.147019] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 2.147087] R10: 00007f6939cca510 R11: 0000000000000246 R12: 0000000000000002 [ 2.147159] R13: 00000000691cbaf2 R14: 0000000000499600 R15: 0000000000000000 [ 2.147233] [ 2.147256] Modules linked in: [ 2.147293] CR2: 0000000000000000 [ 2.147327] ---[ end trace 0000000000000000 ]--- [ 2.147374] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 2.147427] 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 [ 2.147586] RSP: 0018:ffffb491c065f610 EFLAGS: 00010046 [ 2.147638] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 00000000ffffffff [ 2.147706] RDX: ffffb491c065f648 RSI: 0000000000000000 RDI: 0000000000000000 [ 2.147776] RBP: ffffb491c065f648 R08: ffffffffa2693e00 R09: 0000000000000101 [ 2.147843] R10: ffffffffa32080d8 R11: ffffb491c0003ff8 R12: 0000000000000000 [ 2.147911] R13: ffffb491c065f740 R14: 0000000000000020 R15: 00000000ffffffff [ 2.147978] FS: 00007f6939c00800(0000) GS:ffff9f77db191000(0000) knlGS:0000000000000000 [ 2.148052] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.148112] CR2: 0000000000000000 CR3: 00000000031df003 CR4: 0000000000772ef0 [ 2.148185] PKRU: 55555554 [ 2.148212] note: ip[277] exited with irqs disabled [ 2.148432] ip (277) used greatest stack depth: 11432 bytes left WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr