[ 2.035122] ip (255) used greatest stack depth: 12408 bytes left [ 2.171586] ip (274) used greatest stack depth: 12200 bytes left [ 2.545071] gre: GRE over IPv4 demultiplexer driver [ 2.546707] ip_gre: GRE over IPv4 tunneling driver [ 2.570225] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 2.570312] #PF: supervisor write access in kernel mode [ 2.570353] #PF: error_code(0x0002) - not-present page [ 2.570393] PGD 60f1067 P4D 60f1067 PUD 60f4067 PMD 0 [ 2.570433] Oops: Oops: 0002 [#1] SMP [ 2.570465] CPU: 1 UID: 0 PID: 323 Comm: ip Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) [ 2.570527] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 2.570569] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 2.570617] 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 [ 2.570732] RSP: 0018:ffffb9fc00293628 EFLAGS: 00010046 [ 2.570782] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 00000000ffffffff [ 2.570838] RDX: ffffb9fc00293660 RSI: 0000000000000000 RDI: 0000000000000000 [ 2.570887] RBP: ffffb9fc00293660 R08: ffffffffa2462a60 R09: 0000000000000101 [ 2.570942] R10: ffffffffa2c080d8 R11: ffffb9fc000e4ff8 R12: 0000000000000000 [ 2.570992] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 2.571043] FS: 00007f9777f64800(0000) GS:ffff96a91b85a000(0000) knlGS:0000000000000000 [ 2.571099] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.571155] CR2: 0000000000000000 CR3: 00000000060fa001 CR4: 0000000000772ef0 [ 2.571213] PKRU: 55555554 [ 2.571229] Call Trace: [ 2.571247] [ 2.571271] __cancel_work+0x29/0xe0 [ 2.571304] ? dev_deactivate_many+0x2c9/0x300 [ 2.571345] __cancel_work_sync+0x16/0x80 [ 2.571376] __dev_close_many+0x11b/0x280 [ 2.571411] __dev_change_flags+0xed/0x220 [ 2.571442] netif_change_flags+0x25/0x60 [ 2.571473] dev_change_flags+0x40/0x80 [ 2.571504] cycle_netdev+0x36/0x70 [vrf] [ 2.571536] vrf_add_slave+0x5a/0xb0 [vrf] [ 2.571566] do_set_master+0x10b/0x170 [ 2.571598] do_setlink.constprop.0+0x320/0x1120 [ 2.571637] ? __nla_validate_parse+0x5d/0xe70 [ 2.571676] ? __kmalloc_cache_noprof+0x3a5/0x4b0 [ 2.571714] rtnl_newlink+0x7fa/0xbc0 [ 2.571746] ? virtio_fs_enqueue_req+0x352/0x570 [ 2.571799] ? __rtnl_unlock+0x37/0x60 [ 2.571830] ? netdev_run_todo+0x63/0x550 [ 2.571860] ? rtnl_setlink+0x2c0/0x2c0 [ 2.571886] rtnetlink_rcv_msg+0x358/0x400 [ 2.571917] ? get_page_from_freelist+0x15b4/0x1770 [ 2.571960] ? rtnl_calcit.isra.0+0x110/0x110 [ 2.571998] netlink_rcv_skb+0x57/0x100 [ 2.572031] netlink_unicast+0x252/0x380 [ 2.572061] ? __alloc_skb+0xfc/0x1e0 [ 2.572091] netlink_sendmsg+0x1be/0x3e0 [ 2.572116] ____sys_sendmsg+0x132/0x260 [ 2.572157] ? copy_msghdr_from_user+0x6c/0xa0 [ 2.572203] ___sys_sendmsg+0x87/0xd0 [ 2.572234] ? ___sys_recvmsg+0x87/0xc0 [ 2.572264] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 2.572303] ? fsnotify_grab_connector+0x48/0x80 [ 2.572343] ? fsnotify_destroy_marks+0x29/0x150 [ 2.572384] __sys_sendmsg+0x71/0xd0 [ 2.572427] do_syscall_64+0xa4/0xfd0 [ 2.572459] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 2.572499] RIP: 0033:0x7f97781321d7 [ 2.572529] 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 [ 2.572643] RSP: 002b:00007ffc6e087ce8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2.572692] RAX: ffffffffffffffda RBX: 00007ffc6e088410 RCX: 00007f97781321d7 [ 2.572739] RDX: 0000000000000000 RSI: 00007ffc6e087d50 RDI: 0000000000000005 [ 2.572805] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 2.572854] R10: 0000000015079910 R11: 0000000000000246 R12: 0000000000000004 [ 2.572904] R13: 00000000691ccd9c R14: 0000000000499600 R15: 0000000000000000 [ 2.572955] [ 2.572976] Modules linked in: ip_gre gre vrf veth [ 2.573016] CR2: 0000000000000000 [ 2.573041] ---[ end trace 0000000000000000 ]--- [ 2.573082] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 2.573119] 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 [ 2.573253] RSP: 0018:ffffb9fc00293628 EFLAGS: 00010046 [ 2.573284] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 00000000ffffffff [ 2.573334] RDX: ffffb9fc00293660 RSI: 0000000000000000 RDI: 0000000000000000 [ 2.573392] RBP: ffffb9fc00293660 R08: ffffffffa2462a60 R09: 0000000000000101 [ 2.573442] R10: ffffffffa2c080d8 R11: ffffb9fc000e4ff8 R12: 0000000000000000 [ 2.573490] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 2.573541] FS: 00007f9777f64800(0000) GS:ffff96a91b85a000(0000) knlGS:0000000000000000 [ 2.573596] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.573642] CR2: 0000000000000000 CR3: 00000000060fa001 CR4: 0000000000772ef0 [ 2.573692] PKRU: 55555554 [ 2.573713] note: ip[323] exited with irqs disabled [ 2.574070] ip (323) used greatest stack depth: 11448 bytes left WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr