[ 1.833879] ip (248) used greatest stack depth: 12328 bytes left [ 2.115944] ip (275) used greatest stack depth: 12168 bytes left [ 2.502838] gre: GRE over IPv4 demultiplexer driver [ 2.504644] ip_gre: GRE over IPv4 tunneling driver [ 2.533201] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 2.533299] #PF: supervisor write access in kernel mode [ 2.533363] #PF: error_code(0x0002) - not-present page [ 2.533428] PGD 6ddb067 P4D 6ddb067 PUD 6d9a067 PMD 0 [ 2.533482] Oops: Oops: 0002 [#1] SMP [ 2.533524] CPU: 0 UID: 0 PID: 321 Comm: ip Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) [ 2.533626] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 2.533694] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 2.533767] 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 [ 2.533962] RSP: 0018:ffffad598028b628 EFLAGS: 00010046 [ 2.534015] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 00000000ffffffff [ 2.534096] RDX: ffffad598028b660 RSI: 0000000000000000 RDI: 0000000000000000 [ 2.534177] RBP: ffffad598028b660 R08: ffffffffbd862a60 R09: 0000000000000101 [ 2.534265] R10: ffffffffbe0080d8 R11: ffffad5980003ff8 R12: 0000000000000000 [ 2.534345] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 2.534426] FS: 00007f9bfdeca800(0000) GS:ffff9a94003da000(0000) knlGS:0000000000000000 [ 2.534522] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.534587] CR2: 0000000000000000 CR3: 0000000006dd1004 CR4: 0000000000772ef0 [ 2.534670] PKRU: 55555554 [ 2.534704] Call Trace: [ 2.534733] [ 2.534763] __cancel_work+0x29/0xe0 [ 2.534808] ? dev_deactivate_many+0x2c9/0x300 [ 2.534871] __cancel_work_sync+0x16/0x80 [ 2.534911] __dev_close_many+0x11b/0x280 [ 2.534967] __dev_change_flags+0xed/0x220 [ 2.535015] netif_change_flags+0x25/0x60 [ 2.535054] dev_change_flags+0x40/0x80 [ 2.535096] cycle_netdev+0x36/0x70 [vrf] [ 2.535146] vrf_add_slave+0x5a/0xb0 [vrf] [ 2.535186] do_set_master+0x10b/0x170 [ 2.535239] do_setlink.constprop.0+0x320/0x1120 [ 2.535306] ? __nla_validate_parse+0x5d/0xe70 [ 2.535366] ? __kmalloc_cache_noprof+0x3a5/0x4b0 [ 2.535432] rtnl_newlink+0x7fa/0xbc0 [ 2.535472] ? virtio_fs_enqueue_req+0x352/0x570 [ 2.535534] ? __rtnl_unlock+0x37/0x60 [ 2.535583] ? netdev_run_todo+0x63/0x550 [ 2.535624] ? rtnl_setlink+0x2c0/0x2c0 [ 2.535663] rtnetlink_rcv_msg+0x358/0x400 [ 2.535704] ? get_page_from_freelist+0x15b4/0x1770 [ 2.535768] ? rtnl_calcit.isra.0+0x110/0x110 [ 2.535828] netlink_rcv_skb+0x57/0x100 [ 2.535871] netlink_unicast+0x252/0x380 [ 2.535918] ? __alloc_skb+0xfc/0x1e0 [ 2.535966] netlink_sendmsg+0x1be/0x3e0 [ 2.536007] ____sys_sendmsg+0x132/0x260 [ 2.536057] ? copy_msghdr_from_user+0x6c/0xa0 [ 2.536118] ___sys_sendmsg+0x87/0xd0 [ 2.536167] ? ___sys_recvmsg+0x87/0xc0 [ 2.536215] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 2.536282] ? fsnotify_grab_connector+0x48/0x80 [ 2.536345] ? fsnotify_destroy_marks+0x29/0x150 [ 2.536398] __sys_sendmsg+0x71/0xd0 [ 2.536438] do_syscall_64+0xa4/0xfd0 [ 2.536487] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 2.536549] RIP: 0033:0x7f9bfe0981d7 [ 2.536588] 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 [ 2.536775] RSP: 002b:00007ffff2c825d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2.536855] RAX: ffffffffffffffda RBX: 00007ffff2c82d00 RCX: 00007f9bfe0981d7 [ 2.536936] RDX: 0000000000000000 RSI: 00007ffff2c82640 RDI: 0000000000000005 [ 2.537016] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 2.537096] R10: 0000000007402910 R11: 0000000000000246 R12: 0000000000000004 [ 2.537177] R13: 00000000691cd750 R14: 0000000000499600 R15: 0000000000000000 [ 2.537265] [ 2.537290] Modules linked in: ip_gre gre vrf veth [ 2.537352] CR2: 0000000000000000 [ 2.537391] ---[ end trace 0000000000000000 ]--- [ 2.537447] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 2.537501] 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 [ 2.537693] RSP: 0018:ffffad598028b628 EFLAGS: 00010046 [ 2.537756] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 00000000ffffffff [ 2.537840] RDX: ffffad598028b660 RSI: 0000000000000000 RDI: 0000000000000000 [ 2.537924] RBP: ffffad598028b660 R08: ffffffffbd862a60 R09: 0000000000000101 [ 2.538007] R10: ffffffffbe0080d8 R11: ffffad5980003ff8 R12: 0000000000000000 [ 2.538092] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 2.538174] FS: 00007f9bfdeca800(0000) GS:ffff9a94003da000(0000) knlGS:0000000000000000 [ 2.538264] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.538328] CR2: 0000000000000000 CR3: 0000000006dd1004 CR4: 0000000000772ef0 [ 2.538410] PKRU: 55555554 [ 2.538437] note: ip[321] exited with irqs disabled [ 2.538934] ip (321) used greatest stack depth: 11448 bytes left WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr