[ 1.876434] ip (246) used greatest stack depth: 12504 bytes left [ 2.064233] ip (255) used greatest stack depth: 12344 bytes left [ 2.526890] gre: GRE over IPv4 demultiplexer driver [ 2.528495] ip_gre: GRE over IPv4 tunneling driver [ 2.559540] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 2.559618] #PF: supervisor write access in kernel mode [ 2.559655] #PF: error_code(0x0002) - not-present page [ 2.559693] PGD 4b2d067 P4D 4b2d067 PUD 4ba6067 PMD 0 [ 2.559737] Oops: Oops: 0002 [#1] SMP [ 2.559772] CPU: 0 UID: 0 PID: 313 Comm: ip Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) [ 2.559848] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 2.559908] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 2.559957] 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 [ 2.560091] RSP: 0018:ffffa755405df628 EFLAGS: 00010046 [ 2.560132] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000004 [ 2.560185] RDX: ffffa755405df660 RSI: 0000000000000000 RDI: 0000000000000000 [ 2.560245] RBP: ffffa755405df660 R08: 0000000000000400 R09: 0000000000000001 [ 2.560305] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 [ 2.560363] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 2.560424] FS: 00007f12eca02800(0000) GS:ffff8fa0e17da000(0000) knlGS:0000000000000000 [ 2.560480] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.560525] CR2: 0000000000000000 CR3: 0000000004b6d006 CR4: 0000000000772ef0 [ 2.560581] PKRU: 55555554 [ 2.560605] Call Trace: [ 2.560631] [ 2.560658] __cancel_work+0x29/0xe0 [ 2.560703] ? dev_deactivate_many+0x2c9/0x300 [ 2.560747] __cancel_work_sync+0x16/0x80 [ 2.560782] __dev_close_many+0x11b/0x280 [ 2.560819] __dev_change_flags+0xed/0x220 [ 2.560853] netif_change_flags+0x25/0x60 [ 2.560894] dev_change_flags+0x40/0x80 [ 2.560928] cycle_netdev+0x36/0x70 [vrf] [ 2.560963] vrf_add_slave+0x5a/0xb0 [vrf] [ 2.560995] do_set_master+0x10b/0x170 [ 2.561032] do_setlink.constprop.0+0x320/0x1120 [ 2.561077] ? __nla_validate_parse+0x5d/0xe70 [ 2.561121] ? __kmalloc_cache_noprof+0x3a5/0x4b0 [ 2.561166] rtnl_newlink+0x7fa/0xbc0 [ 2.561200] ? virtio_fs_enqueue_req+0x352/0x570 [ 2.561243] ? netdev_run_todo+0x63/0x550 [ 2.561276] ? rtnl_setlink+0x2c0/0x2c0 [ 2.561316] rtnetlink_rcv_msg+0x358/0x400 [ 2.561347] ? get_page_from_freelist+0x15b4/0x1770 [ 2.561391] ? rtnl_calcit.isra.0+0x110/0x110 [ 2.561435] netlink_rcv_skb+0x57/0x100 [ 2.561471] netlink_unicast+0x252/0x380 [ 2.561503] ? __alloc_skb+0xfc/0x1e0 [ 2.561538] netlink_sendmsg+0x1be/0x3e0 [ 2.561573] ____sys_sendmsg+0x132/0x260 [ 2.561608] ? copy_msghdr_from_user+0x6c/0xa0 [ 2.561652] ___sys_sendmsg+0x87/0xd0 [ 2.561687] ? do_wp_page+0x369/0xe90 [ 2.561722] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 2.561771] ? fsnotify_grab_connector+0x48/0x80 [ 2.561812] ? fsnotify_destroy_marks+0x29/0x150 [ 2.561861] __sys_sendmsg+0x71/0xd0 [ 2.561897] do_syscall_64+0xa4/0xfd0 [ 2.561932] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 2.561976] RIP: 0033:0x7f12ecbd01d7 [ 2.562009] 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 [ 2.562135] RSP: 002b:00007ffd362afaa8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2.562196] RAX: ffffffffffffffda RBX: 00007ffd362b01d0 RCX: 00007f12ecbd01d7 [ 2.562251] RDX: 0000000000000000 RSI: 00007ffd362afb10 RDI: 0000000000000005 [ 2.562306] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000 [ 2.562368] R10: 000000000db46910 R11: 0000000000000246 R12: 0000000000000003 [ 2.562428] R13: 00000000691cba04 R14: 0000000000499600 R15: 0000000000000000 [ 2.562483] [ 2.562505] Modules linked in: ip_gre gre sch_ingress vrf veth [ 2.562557] CR2: 0000000000000000 [ 2.562591] ---[ end trace 0000000000000000 ]--- [ 2.562629] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 2.562676] 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 [ 2.562805] RSP: 0018:ffffa755405df628 EFLAGS: 00010046 [ 2.562843] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000004 [ 2.562922] RDX: ffffa755405df660 RSI: 0000000000000000 RDI: 0000000000000000 [ 2.562997] RBP: ffffa755405df660 R08: 0000000000000400 R09: 0000000000000001 [ 2.563071] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 [ 2.563141] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 2.563198] FS: 00007f12eca02800(0000) GS:ffff8fa0e17da000(0000) knlGS:0000000000000000 [ 2.563260] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.563306] CR2: 0000000000000000 CR3: 0000000004b6d006 CR4: 0000000000772ef0 [ 2.563362] PKRU: 55555554 [ 2.563386] note: ip[313] exited with irqs disabled [ 2.563666] ip (313) used greatest stack depth: 11448 bytes left WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr