[ 1.755562] ip (248) used greatest stack depth: 12344 bytes left [ 17.530622] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 17.530699] #PF: supervisor write access in kernel mode [ 17.530747] #PF: error_code(0x0002) - not-present page [ 17.530784] PGD 6670067 P4D 6670067 PUD 1b5c067 PMD 0 [ 17.530831] Oops: Oops: 0002 [#1] SMP [ 17.530864] CPU: 0 UID: 0 PID: 610 Comm: ip Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) [ 17.530935] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.530986] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 17.531038] 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 [ 17.531184] RSP: 0018:ffffb165c0a8b6b8 EFLAGS: 00010046 [ 17.531228] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000004 [ 17.531295] RDX: ffffb165c0a8b6f0 RSI: 0000000000000000 RDI: 0000000000000000 [ 17.531363] RBP: ffffb165c0a8b6f0 R08: ffff98ca813a3673 R09: ffffffff96a6cc80 [ 17.531437] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 17.531503] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 17.531579] FS: 00007f4bd5406800(0000) GS:ffff98cb279da000(0000) knlGS:0000000000000000 [ 17.531638] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 17.531687] CR2: 0000000000000000 CR3: 000000000663d006 CR4: 0000000000772ef0 [ 17.531747] PKRU: 55555554 [ 17.531769] Call Trace: [ 17.531797] [ 17.531821] __cancel_work+0x29/0xe0 [ 17.531858] ? linkwatch_urgent_event+0x2f/0xb0 [ 17.531911] __cancel_work_sync+0x16/0x80 [ 17.531944] __dev_close_many+0x11b/0x280 [ 17.531989] __dev_change_flags+0xed/0x220 [ 17.532023] netif_change_flags+0x25/0x60 [ 17.532070] do_setlink.constprop.0+0x2fe/0x1120 [ 17.532121] ? __nla_validate_parse+0x5d/0xe70 [ 17.532166] ? __kmalloc_cache_noprof+0x3a5/0x4b0 [ 17.532212] rtnl_newlink+0x7fa/0xbc0 [ 17.532247] ? virtio_fs_enqueue_req+0x352/0x570 [ 17.532293] ? netdev_run_todo+0x63/0x550 [ 17.532326] ? rtnl_setlink+0x2c0/0x2c0 [ 17.532365] rtnetlink_rcv_msg+0x358/0x400 [ 17.532406] ? get_page_from_freelist+0x15b4/0x1770 [ 17.532463] ? rtnl_calcit.isra.0+0x110/0x110 [ 17.532501] netlink_rcv_skb+0x57/0x100 [ 17.532539] netlink_unicast+0x252/0x380 [ 17.532580] ? __alloc_skb+0xfc/0x1e0 [ 17.532626] netlink_sendmsg+0x1be/0x3e0 [ 17.532660] ____sys_sendmsg+0x132/0x260 [ 17.532696] ? copy_msghdr_from_user+0x6c/0xa0 [ 17.532743] ___sys_sendmsg+0x87/0xd0 [ 17.532776] ? do_wp_page+0x369/0xe90 [ 17.532813] ? ___pte_offset_map+0x1b/0xd0 [ 17.532853] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 17.532898] ? fsnotify_grab_connector+0x48/0x80 [ 17.532941] ? fsnotify_destroy_marks+0x29/0x150 [ 17.532983] __sys_sendmsg+0x71/0xd0 [ 17.533019] do_syscall_64+0xa4/0xfd0 [ 17.533062] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 17.533123] RIP: 0033:0x7f4bd55d41d7 [ 17.533154] 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 [ 17.533292] RSP: 002b:00007ffc086fc868 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 17.533365] RAX: ffffffffffffffda RBX: 00007ffc086fcf90 RCX: 00007f4bd55d41d7 [ 17.533429] RDX: 0000000000000000 RSI: 00007ffc086fc8d0 RDI: 0000000000000005 [ 17.533493] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 17.533556] R10: 00007f4bd54d0f60 R11: 0000000000000246 R12: 0000000000000003 [ 17.533618] R13: 00000000691cd6df R14: 0000000000499600 R15: 0000000000000000 [ 17.533686] [ 17.533714] Modules linked in: vrf veth [ 17.533747] CR2: 0000000000000000 [ 17.533780] ---[ end trace 0000000000000000 ]--- [ 17.533819] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 17.533869] 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 [ 17.534004] RSP: 0018:ffffb165c0a8b6b8 EFLAGS: 00010046 [ 17.534057] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000004 [ 17.534131] RDX: ffffb165c0a8b6f0 RSI: 0000000000000000 RDI: 0000000000000000 [ 17.534196] RBP: ffffb165c0a8b6f0 R08: ffff98ca813a3673 R09: ffffffff96a6cc80 [ 17.534252] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 17.534320] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 17.534380] FS: 00007f4bd5406800(0000) GS:ffff98cb279da000(0000) knlGS:0000000000000000 [ 17.534449] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 17.534513] CR2: 0000000000000000 CR3: 000000000663d006 CR4: 0000000000772ef0 [ 17.534574] PKRU: 55555554 [ 17.534599] note: ip[610] exited with irqs disabled [ 17.534834] ip (610) used greatest stack depth: 11592 bytes left WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr