[ 2.789474] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 2.789547] #PF: supervisor write access in kernel mode [ 2.789582] #PF: error_code(0x0002) - not-present page [ 2.789619] PGD 75c7067 P4D 75c7067 PUD 75b1067 PMD 0 [ 2.789660] Oops: Oops: 0002 [#1] SMP [ 2.789689] CPU: 2 UID: 0 PID: 335 Comm: ip Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) [ 2.789757] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 2.789800] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 2.789844] 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 [ 2.789955] RSP: 0018:ffffa8f8408076b8 EFLAGS: 00010046 [ 2.789990] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000800 [ 2.790041] RDX: ffffa8f8408076f0 RSI: 0000000000000000 RDI: 0000000000000000 [ 2.790092] RBP: ffffa8f8408076f0 R08: ffff9dc88139e473 R09: 0000000000000002 [ 2.790143] R10: ffff9dc8bed28840 R11: ffff9dc88139dc90 R12: 0000000000000000 [ 2.790204] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 2.790258] FS: 00007f8d8a041800(0000) GS:ffff9dc922891000(0000) knlGS:0000000000000000 [ 2.790313] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.790360] CR2: 0000000000000000 CR3: 00000000075bb006 CR4: 0000000000772ef0 [ 2.790412] PKRU: 55555554 [ 2.790432] Call Trace: [ 2.790459] [ 2.790481] __cancel_work+0x29/0xe0 [ 2.790515] ? linkwatch_urgent_event+0x2f/0xb0 [ 2.790555] __cancel_work_sync+0x16/0x80 [ 2.790584] __dev_close_many+0x113/0x2b0 [ 2.790618] __dev_change_flags+0xed/0x220 [ 2.790652] netif_change_flags+0x25/0x60 [ 2.790683] do_setlink.constprop.0+0x2fd/0x1170 [ 2.790723] ? __nla_validate_parse+0x5d/0xe70 [ 2.790762] ? __kmalloc_cache_noprof+0x3a5/0x4b0 [ 2.790804] rtnl_newlink+0x7fa/0xc00 [ 2.790833] ? virtio_fs_enqueue_req+0x352/0x570 [ 2.790878] ? netdev_run_todo+0x63/0x550 [ 2.790906] ? rtnl_setlink+0x2c0/0x2c0 [ 2.790935] rtnetlink_rcv_msg+0x358/0x400 [ 2.790973] ? get_page_from_freelist+0x15b4/0x1770 [ 2.791009] ? rtnl_calcit.isra.0+0x110/0x110 [ 2.791045] netlink_rcv_skb+0x57/0x100 [ 2.791081] netlink_unicast+0x252/0x380 [ 2.791111] ? __alloc_skb+0xfc/0x1e0 [ 2.791144] netlink_sendmsg+0x1be/0x3e0 [ 2.791173] ____sys_sendmsg+0x132/0x260 [ 2.791205] ? copy_msghdr_from_user+0x6c/0xa0 [ 2.791241] ___sys_sendmsg+0x87/0xd0 [ 2.791270] ? do_wp_page+0x369/0xe90 [ 2.791301] ? ___pte_offset_map+0x1b/0xd0 [ 2.791334] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 2.791374] ? fsnotify_grab_connector+0x48/0x80 [ 2.791413] ? fsnotify_destroy_marks+0x29/0x150 [ 2.791450] __sys_sendmsg+0x71/0xd0 [ 2.791479] do_syscall_64+0xa4/0xfd0 [ 2.791512] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 2.791552] RIP: 0033:0x7f8d8a20f1d7 [ 2.791580] 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 [ 2.791705] RSP: 002b:00007fffec82a1d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2.791757] RAX: ffffffffffffffda RBX: 00007fffec82a910 RCX: 00007f8d8a20f1d7 [ 2.791808] RDX: 0000000000000000 RSI: 00007fffec82a240 RDI: 0000000000000005 [ 2.791859] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 2.791910] R10: 00007f8d8a10b510 R11: 0000000000000246 R12: 0000000000000002 [ 2.791961] R13: 00000000691cb760 R14: 0000000000499600 R15: 0000000000000000 [ 2.792014] [ 2.792033] Modules linked in: [ 2.792062] CR2: 0000000000000000 [ 2.792090] ---[ end trace 0000000000000000 ]--- [ 2.792126] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 2.792173] 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 [ 2.792286] RSP: 0018:ffffa8f8408076b8 EFLAGS: 00010046 [ 2.792322] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000800 [ 2.792375] RDX: ffffa8f8408076f0 RSI: 0000000000000000 RDI: 0000000000000000 [ 2.792426] RBP: ffffa8f8408076f0 R08: ffff9dc88139e473 R09: 0000000000000002 [ 2.792477] R10: ffff9dc8bed28840 R11: ffff9dc88139dc90 R12: 0000000000000000 [ 2.792527] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 2.792580] FS: 00007f8d8a041800(0000) GS:ffff9dc922891000(0000) knlGS:0000000000000000 [ 2.792641] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.792687] CR2: 0000000000000000 CR3: 00000000075bb006 CR4: 0000000000772ef0 [ 2.792739] PKRU: 55555554 [ 2.792759] note: ip[335] exited with irqs disabled [ 2.793051] ip (335) used greatest stack depth: 11592 bytes left WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr