[ 1.912594] ip (248) used greatest stack depth: 12360 bytes left [ 2.070296] ip (258) used greatest stack depth: 12328 bytes left [ 152.072146] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 152.072234] #PF: supervisor write access in kernel mode [ 152.072278] #PF: error_code(0x0002) - not-present page [ 152.072322] PGD 9a71067 P4D 9a71067 PUD 823f067 PMD 0 [ 152.072365] Oops: Oops: 0002 [#1] SMP [ 152.072401] CPU: 2 UID: 0 PID: 17201 Comm: ip Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) [ 152.072471] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 152.072526] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 152.072583] 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 [ 152.072719] RSP: 0018:ffffadb1403336b8 EFLAGS: 00010046 [ 152.072762] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000004 [ 152.072818] RDX: ffffadb1403336f0 RSI: 0000000000000000 RDI: 0000000000000000 [ 152.072874] RBP: ffffadb1403336f0 R08: ffff97e703628873 R09: ffffffffbb26cc80 [ 152.072929] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 152.072986] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 152.073044] FS: 00007f6e8dfac800(0000) GS:ffff97e7832da000(0000) knlGS:0000000000000000 [ 152.073105] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 152.073158] CR2: 0000000000000000 CR3: 0000000009c06001 CR4: 0000000000772ef0 [ 152.073221] PKRU: 55555554 [ 152.073245] Call Trace: [ 152.073266] [ 152.073293] __cancel_work+0x29/0xe0 [ 152.073333] ? linkwatch_urgent_event+0x2f/0xb0 [ 152.073377] __cancel_work_sync+0x16/0x80 [ 152.073411] __dev_close_many+0x11b/0x280 [ 152.073450] __dev_change_flags+0xed/0x220 [ 152.073489] netif_change_flags+0x25/0x60 [ 152.073523] do_setlink.constprop.0+0x2fe/0x1120 [ 152.073573] ? __nla_validate_parse+0x5d/0xe70 [ 152.073620] ? __kmalloc_cache_noprof+0x3a5/0x4b0 [ 152.073669] rtnl_newlink+0x7fa/0xbc0 [ 152.073703] ? virtio_fs_enqueue_req+0x352/0x570 [ 152.073751] ? netdev_run_todo+0x63/0x550 [ 152.073785] ? rtnl_setlink+0x2c0/0x2c0 [ 152.073819] rtnetlink_rcv_msg+0x358/0x400 [ 152.073854] ? get_page_from_freelist+0x15b4/0x1770 [ 152.073897] ? rtnl_calcit.isra.0+0x110/0x110 [ 152.073940] netlink_rcv_skb+0x57/0x100 [ 152.073976] netlink_unicast+0x252/0x380 [ 152.074010] ? __alloc_skb+0xfc/0x1e0 [ 152.074048] netlink_sendmsg+0x1be/0x3e0 [ 152.074076] ____sys_sendmsg+0x132/0x260 [ 152.074111] ? copy_msghdr_from_user+0x6c/0xa0 [ 152.074154] ___sys_sendmsg+0x87/0xd0 [ 152.074189] ? do_wp_page+0x369/0xe90 [ 152.074223] ? ___pte_offset_map+0x1b/0xd0 [ 152.074260] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 152.074304] ? fsnotify_grab_connector+0x48/0x80 [ 152.074352] ? fsnotify_destroy_marks+0x29/0x150 [ 152.074396] __sys_sendmsg+0x71/0xd0 [ 152.074431] do_syscall_64+0xa4/0xfd0 [ 152.074471] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 152.074516] RIP: 0033:0x7f6e8e17a1d7 [ 152.074549] 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 [ 152.074687] RSP: 002b:00007ffd32135f28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 152.074750] RAX: ffffffffffffffda RBX: 00007ffd32136650 RCX: 00007f6e8e17a1d7 [ 152.074806] RDX: 0000000000000000 RSI: 00007ffd32135f90 RDI: 0000000000000005 [ 152.074862] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 152.074917] R10: 00007f6e8e076f60 R11: 0000000000000246 R12: 0000000000000003 [ 152.074971] R13: 00000000691cbb51 R14: 0000000000499600 R15: 0000000000000000 [ 152.075027] [ 152.075050] Modules linked in: vrf veth [ 152.075085] CR2: 0000000000000000 [ 152.075117] ---[ end trace 0000000000000000 ]--- [ 152.075152] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 152.075195] 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 [ 152.075331] RSP: 0018:ffffadb1403336b8 EFLAGS: 00010046 [ 152.075374] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000004 [ 152.075430] RDX: ffffadb1403336f0 RSI: 0000000000000000 RDI: 0000000000000000 [ 152.075486] RBP: ffffadb1403336f0 R08: ffff97e703628873 R09: ffffffffbb26cc80 [ 152.075541] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 152.075604] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 152.075662] FS: 00007f6e8dfac800(0000) GS:ffff97e7832da000(0000) knlGS:0000000000000000 [ 152.075724] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 152.075818] CR2: 0000000000000000 CR3: 0000000009c06001 CR4: 0000000000772ef0 [ 152.075903] PKRU: 55555554 [ 152.075923] note: ip[17201] exited with irqs disabled [ 152.076216] ip (17201) used greatest stack depth: 11592 bytes left WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr