[ 1.788821] ip (249) used greatest stack depth: 12408 bytes left [ 1.911464] ip (256) used greatest stack depth: 12296 bytes left [ 2.026014] ip (275) used greatest stack depth: 12168 bytes left [ 2.370102] gre: GRE over IPv4 demultiplexer driver [ 2.371653] ip_gre: GRE over IPv4 tunneling driver [ 2.400659] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 2.400740] #PF: supervisor write access in kernel mode [ 2.400782] #PF: error_code(0x0002) - not-present page [ 2.400828] PGD 8f2a067 P4D 8f2a067 PUD 8f27067 PMD 0 [ 2.400879] Oops: Oops: 0002 [#1] SMP [ 2.400914] CPU: 1 UID: 0 PID: 321 Comm: ip Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) [ 2.400998] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 2.401054] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 2.401118] 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 [ 2.401273] RSP: 0018:ffffb5c58028b628 EFLAGS: 00010046 [ 2.401318] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 00000000ffffffff [ 2.401386] RDX: ffffb5c58028b660 RSI: 0000000000000000 RDI: 0000000000000000 [ 2.401455] RBP: ffffb5c58028b660 R08: ffffffff95a62a60 R09: 0000000000000101 [ 2.401522] R10: ffffffff962080d8 R11: ffffb5c5800e4ff8 R12: 0000000000000000 [ 2.401589] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 2.401660] FS: 00007fc02b270800(0000) GS:ffff9cd66825a000(0000) knlGS:0000000000000000 [ 2.401733] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.401787] CR2: 0000000000000000 CR3: 0000000002f78002 CR4: 0000000000772ef0 [ 2.401856] PKRU: 55555554 [ 2.401876] Call Trace: [ 2.401902] [ 2.401931] __cancel_work+0x29/0xe0 [ 2.401968] ? dev_deactivate_many+0x2c9/0x300 [ 2.402019] __cancel_work_sync+0x16/0x80 [ 2.402052] __dev_close_many+0x11b/0x280 [ 2.402100] __dev_change_flags+0xed/0x220 [ 2.402141] netif_change_flags+0x25/0x60 [ 2.402180] dev_change_flags+0x40/0x80 [ 2.402214] cycle_netdev+0x36/0x70 [vrf] [ 2.402254] vrf_add_slave+0x5a/0xb0 [vrf] [ 2.402286] do_set_master+0x10b/0x170 [ 2.402327] do_setlink.constprop.0+0x320/0x1120 [ 2.402379] ? __nla_validate_parse+0x5d/0xe70 [ 2.402435] ? __kmalloc_cache_noprof+0x3a5/0x4b0 [ 2.402494] rtnl_newlink+0x7fa/0xbc0 [ 2.402529] ? virtio_fs_enqueue_req+0x511/0x570 [ 2.402580] ? __rtnl_unlock+0x37/0x60 [ 2.402614] ? netdev_run_todo+0x63/0x550 [ 2.402648] ? rtnl_setlink+0x2c0/0x2c0 [ 2.402687] rtnetlink_rcv_msg+0x358/0x400 [ 2.402721] ? get_page_from_freelist+0x15b4/0x1770 [ 2.402773] ? rtnl_calcit.isra.0+0x110/0x110 [ 2.402816] netlink_rcv_skb+0x57/0x100 [ 2.402860] netlink_unicast+0x252/0x380 [ 2.402899] ? __alloc_skb+0xfc/0x1e0 [ 2.402938] netlink_sendmsg+0x1be/0x3e0 [ 2.402973] ____sys_sendmsg+0x132/0x260 [ 2.403006] ? copy_msghdr_from_user+0x6c/0xa0 [ 2.403051] ___sys_sendmsg+0x87/0xd0 [ 2.403091] ? ___sys_recvmsg+0x87/0xc0 [ 2.403124] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 2.403174] ? fsnotify_grab_connector+0x48/0x80 [ 2.403226] ? fsnotify_destroy_marks+0x29/0x150 [ 2.403271] __sys_sendmsg+0x71/0xd0 [ 2.403306] do_syscall_64+0xa4/0xfd0 [ 2.403346] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 2.403390] RIP: 0033:0x7fc02b43e1d7 [ 2.403427] 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 [ 2.403584] RSP: 002b:00007ffcb581d8d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2.403650] RAX: ffffffffffffffda RBX: 00007ffcb581e000 RCX: 00007fc02b43e1d7 [ 2.403718] RDX: 0000000000000000 RSI: 00007ffcb581d940 RDI: 0000000000000005 [ 2.403786] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 2.403854] R10: 000000002d2dd910 R11: 0000000000000246 R12: 0000000000000004 [ 2.403921] R13: 00000000691cc431 R14: 0000000000499600 R15: 0000000000000000 [ 2.403987] [ 2.404007] Modules linked in: ip_gre gre vrf veth [ 2.404053] CR2: 0000000000000000 [ 2.404086] ---[ end trace 0000000000000000 ]--- [ 2.404133] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 2.404178] 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 [ 2.404332] RSP: 0018:ffffb5c58028b628 EFLAGS: 00010046 [ 2.404376] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 00000000ffffffff [ 2.404444] RDX: ffffb5c58028b660 RSI: 0000000000000000 RDI: 0000000000000000 [ 2.404511] RBP: ffffb5c58028b660 R08: ffffffff95a62a60 R09: 0000000000000101 [ 2.404581] R10: ffffffff962080d8 R11: ffffb5c5800e4ff8 R12: 0000000000000000 [ 2.404648] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 2.404718] FS: 00007fc02b270800(0000) GS:ffff9cd66825a000(0000) knlGS:0000000000000000 [ 2.404792] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.404846] CR2: 0000000000000000 CR3: 0000000002f78002 CR4: 0000000000772ef0 [ 2.404915] PKRU: 55555554 [ 2.404943] note: ip[321] exited with irqs disabled [ 2.405122] ip (321) used greatest stack depth: 11448 bytes left WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr