[ 3.119213] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 3.119273] #PF: supervisor write access in kernel mode [ 3.119308] #PF: error_code(0x0002) - not-present page [ 3.119337] PGD 7cb0067 P4D 7cb0067 PUD 7c9e067 PMD 0 [ 3.119373] Oops: Oops: 0002 [#1] SMP [ 3.119401] CPU: 2 UID: 0 PID: 447 Comm: ip Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) [ 3.119458] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 3.119494] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 3.119534] 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 [ 3.119642] RSP: 0018:ffffaaa0c0baf6b8 EFLAGS: 00010046 [ 3.119677] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000c00 [ 3.119727] RDX: ffffaaa0c0baf6f0 RSI: 0000000000000000 RDI: 0000000000000000 [ 3.119777] RBP: ffffaaa0c0baf6f0 R08: ffff99bd8139e473 R09: 0000000000000002 [ 3.119821] R10: ffff99bdbed28840 R11: ffff99bd8139dc90 R12: 0000000000000000 [ 3.119875] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 3.119926] FS: 00007f5cbce3d800(0000) GS:ffff99be0e691000(0000) knlGS:0000000000000000 [ 3.119979] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3.120020] CR2: 0000000000000000 CR3: 0000000007cea006 CR4: 0000000000772ef0 [ 3.120071] PKRU: 55555554 [ 3.120090] Call Trace: [ 3.120106] [ 3.120127] __cancel_work+0x29/0xe0 [ 3.120153] ? linkwatch_urgent_event+0x2f/0xb0 [ 3.120192] __cancel_work_sync+0x16/0x80 [ 3.120220] __dev_close_many+0x113/0x2b0 [ 3.120248] __dev_change_flags+0xed/0x220 [ 3.120275] netif_change_flags+0x25/0x60 [ 3.120302] do_setlink.constprop.0+0x2fd/0x1170 [ 3.120338] ? __nla_validate_parse+0x5d/0xe70 [ 3.120377] ? __kmalloc_cache_noprof+0x3a5/0x4b0 [ 3.120418] rtnl_newlink+0x7fa/0xc00 [ 3.120446] ? virtio_fs_enqueue_req+0x352/0x570 [ 3.120480] ? netdev_run_todo+0x63/0x550 [ 3.120508] ? rtnl_setlink+0x2c0/0x2c0 [ 3.120535] rtnetlink_rcv_msg+0x358/0x400 [ 3.120563] ? get_page_from_freelist+0x15b4/0x1770 [ 3.120598] ? rtnl_calcit.isra.0+0x110/0x110 [ 3.120635] netlink_rcv_skb+0x57/0x100 [ 3.120663] netlink_unicast+0x252/0x380 [ 3.120690] ? __alloc_skb+0xfc/0x1e0 [ 3.120718] netlink_sendmsg+0x1be/0x3e0 [ 3.120746] ____sys_sendmsg+0x132/0x260 [ 3.120774] ? copy_msghdr_from_user+0x6c/0xa0 [ 3.120809] ___sys_sendmsg+0x87/0xd0 [ 3.120836] ? do_wp_page+0x369/0xe90 [ 3.120864] ? ___pte_offset_map+0x1b/0xd0 [ 3.120892] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 3.120931] ? fsnotify_grab_connector+0x48/0x80 [ 3.120966] ? fsnotify_destroy_marks+0x29/0x150 [ 3.121001] __sys_sendmsg+0x71/0xd0 [ 3.121030] do_syscall_64+0xa4/0xfd0 [ 3.121063] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 3.121098] RIP: 0033:0x7f5cbd00b1d7 [ 3.121125] 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 [ 3.121233] RSP: 002b:00007ffd7e33e788 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 3.121282] RAX: ffffffffffffffda RBX: 00007ffd7e33eec0 RCX: 00007f5cbd00b1d7 [ 3.121332] RDX: 0000000000000000 RSI: 00007ffd7e33e7f0 RDI: 0000000000000005 [ 3.121386] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 3.121429] R10: 00007f5cbcf07510 R11: 0000000000000246 R12: 0000000000000003 [ 3.121473] R13: 00000000691cd1d5 R14: 0000000000499600 R15: 0000000000000000 [ 3.121518] [ 3.121537] Modules linked in: [ 3.121565] CR2: 0000000000000000 [ 3.121592] ---[ end trace 0000000000000000 ]--- [ 3.121627] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 3.121662] 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 [ 3.121771] RSP: 0018:ffffaaa0c0baf6b8 EFLAGS: 00010046 [ 3.121801] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000c00 [ 3.121854] RDX: ffffaaa0c0baf6f0 RSI: 0000000000000000 RDI: 0000000000000000 [ 3.121899] RBP: ffffaaa0c0baf6f0 R08: ffff99bd8139e473 R09: 0000000000000002 [ 3.121942] R10: ffff99bdbed28840 R11: ffff99bd8139dc90 R12: 0000000000000000 [ 3.121986] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 3.122033] FS: 00007f5cbce3d800(0000) GS:ffff99be0e691000(0000) knlGS:0000000000000000 [ 3.122086] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3.122127] CR2: 0000000000000000 CR3: 0000000007cea006 CR4: 0000000000772ef0 [ 3.122172] PKRU: 55555554 [ 3.122191] note: ip[447] exited with irqs disabled [ 3.122400] ip (447) used greatest stack depth: 11592 bytes left