[ 1.988468] ip (247) used greatest stack depth: 12344 bytes left [ 2.643653] gre: GRE over IPv4 demultiplexer driver [ 2.645723] ip_gre: GRE over IPv4 tunneling driver [ 2.679839] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 2.679942] #PF: supervisor write access in kernel mode [ 2.679992] #PF: error_code(0x0002) - not-present page [ 2.680035] PGD 1b48067 P4D 1b48067 PUD 1e71067 PMD 0 [ 2.680087] Oops: Oops: 0002 [#1] SMP [ 2.680128] CPU: 2 UID: 0 PID: 307 Comm: ip Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) [ 2.680210] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 2.680265] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 2.680327] 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 [ 2.680485] RSP: 0000:ffffb0338029b628 EFLAGS: 00010046 [ 2.680536] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000004 [ 2.680604] RDX: ffffb0338029b660 RSI: 0000000000000000 RDI: 0000000000000000 [ 2.680670] RBP: ffffb0338029b660 R08: 0000000000000000 R09: 0000000000000001 [ 2.680737] R10: 0000000000000001 R11: 0000000000000066 R12: 0000000000000000 [ 2.680805] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 2.680883] FS: 00007f31a8a5d800(0000) GS:ffff9be9158da000(0000) knlGS:0000000000000000 [ 2.680962] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.681024] CR2: 0000000000000000 CR3: 0000000006699001 CR4: 0000000000772ef0 [ 2.681100] PKRU: 55555554 [ 2.681127] Call Trace: [ 2.681153] [ 2.681184] __cancel_work+0x29/0xe0 [ 2.681229] ? dev_deactivate_many+0x2c9/0x300 [ 2.681280] __cancel_work_sync+0x16/0x80 [ 2.681322] __dev_close_many+0x11b/0x280 [ 2.681364] __dev_change_flags+0xed/0x220 [ 2.681405] netif_change_flags+0x25/0x60 [ 2.681446] dev_change_flags+0x40/0x80 [ 2.681482] cycle_netdev+0x36/0x70 [vrf] [ 2.681522] vrf_add_slave+0x5a/0xb0 [vrf] [ 2.681563] do_set_master+0x10b/0x170 [ 2.681607] do_setlink.constprop.0+0x320/0x1120 [ 2.681663] ? __nla_validate_parse+0x5d/0xe70 [ 2.681716] ? __kmalloc_cache_noprof+0x3a5/0x4b0 [ 2.681768] rtnl_newlink+0x7fa/0xbc0 [ 2.681807] ? __schedule+0x504/0xb40 [ 2.681850] ? netdev_run_todo+0x63/0x550 [ 2.681903] ? rtnl_setlink+0x2c0/0x2c0 [ 2.681938] rtnetlink_rcv_msg+0x358/0x400 [ 2.681971] ? get_page_from_freelist+0x15b4/0x1770 [ 2.682023] ? rtnl_calcit.isra.0+0x110/0x110 [ 2.682083] netlink_rcv_skb+0x57/0x100 [ 2.682125] netlink_unicast+0x252/0x380 [ 2.682165] ? __alloc_skb+0xfc/0x1e0 [ 2.682205] netlink_sendmsg+0x1be/0x3e0 [ 2.682239] ____sys_sendmsg+0x132/0x260 [ 2.682281] ? copy_msghdr_from_user+0x6c/0xa0 [ 2.682333] ___sys_sendmsg+0x87/0xd0 [ 2.682367] ? do_wp_page+0x369/0xe90 [ 2.682412] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 2.682471] ? fsnotify_grab_connector+0x48/0x80 [ 2.682522] ? fsnotify_destroy_marks+0x29/0x150 [ 2.682567] __sys_sendmsg+0x71/0xd0 [ 2.682609] do_syscall_64+0xa4/0xfd0 [ 2.682649] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 2.682701] RIP: 0033:0x7f31a8c2b1d7 [ 2.682742] 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 [ 2.682900] RSP: 002b:00007ffe20aa05d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2.682966] RAX: ffffffffffffffda RBX: 00007ffe20aa0d00 RCX: 00007f31a8c2b1d7 [ 2.683033] RDX: 0000000000000000 RSI: 00007ffe20aa0640 RDI: 0000000000000005 [ 2.683100] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000 [ 2.683167] R10: 0000000002161910 R11: 0000000000000246 R12: 0000000000000003 [ 2.683233] R13: 00000000691cd2f2 R14: 0000000000499600 R15: 0000000000000000 [ 2.683302] [ 2.683324] Modules linked in: ip_gre gre vrf veth [ 2.683379] CR2: 0000000000000000 [ 2.683420] ---[ end trace 0000000000000000 ]--- [ 2.683464] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 2.683517] 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 [ 2.683674] RSP: 0000:ffffb0338029b628 EFLAGS: 00010046 [ 2.683719] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000004 [ 2.683786] RDX: ffffb0338029b660 RSI: 0000000000000000 RDI: 0000000000000000 [ 2.683856] RBP: ffffb0338029b660 R08: 0000000000000000 R09: 0000000000000001 [ 2.683924] R10: 0000000000000001 R11: 0000000000000066 R12: 0000000000000000 [ 2.683991] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 2.684060] FS: 00007f31a8a5d800(0000) GS:ffff9be9158da000(0000) knlGS:0000000000000000 [ 2.684133] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.684192] CR2: 0000000000000000 CR3: 0000000006699001 CR4: 0000000000772ef0 [ 2.684258] PKRU: 55555554 [ 2.684279] note: ip[307] exited with irqs disabled [ 2.684602] ip (307) used greatest stack depth: 11448 bytes left WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr