[ 1.869478] ip (248) used greatest stack depth: 12424 bytes left [ 2.005265] ip (256) used greatest stack depth: 12408 bytes left [ 2.391688] gre: GRE over IPv4 demultiplexer driver [ 2.393497] ip_gre: GRE over IPv4 tunneling driver [ 2.419400] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 2.419475] #PF: supervisor write access in kernel mode [ 2.419527] #PF: error_code(0x0002) - not-present page [ 2.419566] PGD 8d00067 P4D 8d00067 PUD 8d01067 PMD 0 [ 2.419613] Oops: Oops: 0002 [#1] SMP [ 2.419656] CPU: 2 UID: 0 PID: 309 Comm: ip Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) [ 2.419733] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 2.419785] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 2.419836] 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 [ 2.419975] RSP: 0018:ffffaf620026b628 EFLAGS: 00010046 [ 2.420015] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000004 [ 2.420085] RDX: ffffaf620026b660 RSI: 0000000000000000 RDI: 0000000000000000 [ 2.420156] RBP: ffffaf620026b660 R08: 0000000000000000 R09: 0000000000000001 [ 2.420231] R10: 0000000000000001 R11: 0000000000000018 R12: 0000000000000000 [ 2.420298] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 2.420363] FS: 00007f55269dd800(0000) GS:ffff943556cda000(0000) knlGS:0000000000000000 [ 2.420430] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.420487] CR2: 0000000000000000 CR3: 0000000008d16006 CR4: 0000000000772ef0 [ 2.420549] PKRU: 55555554 [ 2.420577] Call Trace: [ 2.420600] [ 2.420628] __cancel_work+0x29/0xe0 [ 2.420666] ? dev_deactivate_many+0x2c9/0x300 [ 2.420715] __cancel_work_sync+0x16/0x80 [ 2.420762] __dev_close_many+0x11b/0x280 [ 2.420799] __dev_change_flags+0xed/0x220 [ 2.420835] netif_change_flags+0x25/0x60 [ 2.420868] dev_change_flags+0x40/0x80 [ 2.420905] cycle_netdev+0x36/0x70 [vrf] [ 2.420944] vrf_add_slave+0x5a/0xb0 [vrf] [ 2.420973] do_set_master+0x10b/0x170 [ 2.421010] do_setlink.constprop.0+0x320/0x1120 [ 2.421059] ? __nla_validate_parse+0x5d/0xe70 [ 2.421106] ? __kmalloc_cache_noprof+0x3a5/0x4b0 [ 2.421152] rtnl_newlink+0x7fa/0xbc0 [ 2.421190] ? virtio_fs_enqueue_req+0x352/0x570 [ 2.421239] ? netdev_run_todo+0x63/0x550 [ 2.421275] ? rtnl_setlink+0x2c0/0x2c0 [ 2.421311] rtnetlink_rcv_msg+0x358/0x400 [ 2.421341] ? get_page_from_freelist+0x15b4/0x1770 [ 2.421387] ? rtnl_calcit.isra.0+0x110/0x110 [ 2.421434] netlink_rcv_skb+0x57/0x100 [ 2.421480] netlink_unicast+0x252/0x380 [ 2.421517] ? __alloc_skb+0xfc/0x1e0 [ 2.421554] netlink_sendmsg+0x1be/0x3e0 [ 2.421584] ____sys_sendmsg+0x132/0x260 [ 2.421620] ? copy_msghdr_from_user+0x6c/0xa0 [ 2.421667] ___sys_sendmsg+0x87/0xd0 [ 2.421703] ? do_wp_page+0x369/0xe90 [ 2.421740] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 2.421786] ? fsnotify_grab_connector+0x48/0x80 [ 2.421832] ? fsnotify_destroy_marks+0x29/0x150 [ 2.421872] __sys_sendmsg+0x71/0xd0 [ 2.421910] do_syscall_64+0xa4/0xfd0 [ 2.421946] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 2.421992] RIP: 0033:0x7f5526bab1d7 [ 2.422028] 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 [ 2.422167] RSP: 002b:00007ffce6688b48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2.422226] RAX: ffffffffffffffda RBX: 00007ffce6689270 RCX: 00007f5526bab1d7 [ 2.422286] RDX: 0000000000000000 RSI: 00007ffce6688bb0 RDI: 0000000000000005 [ 2.422346] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000 [ 2.422405] R10: 0000000002484910 R11: 0000000000000246 R12: 0000000000000003 [ 2.422465] R13: 00000000691cbfb9 R14: 0000000000499600 R15: 0000000000000000 [ 2.422526] [ 2.422545] Modules linked in: ip_gre gre sch_ingress vrf veth [ 2.422603] CR2: 0000000000000000 [ 2.422632] ---[ end trace 0000000000000000 ]--- [ 2.422671] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 2.422719] 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 [ 2.422858] RSP: 0018:ffffaf620026b628 EFLAGS: 00010046 [ 2.422898] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000004 [ 2.422958] RDX: ffffaf620026b660 RSI: 0000000000000000 RDI: 0000000000000000 [ 2.423018] RBP: ffffaf620026b660 R08: 0000000000000000 R09: 0000000000000001 [ 2.423078] R10: 0000000000000001 R11: 0000000000000018 R12: 0000000000000000 [ 2.423137] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 2.423197] FS: 00007f55269dd800(0000) GS:ffff943556cda000(0000) knlGS:0000000000000000 [ 2.423264] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.423313] CR2: 0000000000000000 CR3: 0000000008d16006 CR4: 0000000000772ef0 [ 2.423374] PKRU: 55555554 [ 2.423393] note: ip[309] exited with irqs disabled [ 2.423980] ip (309) used greatest stack depth: 11448 bytes left WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr