[ 1.902414] ip (249) used greatest stack depth: 12328 bytes left [ 2.155684] ip (274) used greatest stack depth: 12168 bytes left [ 2.508877] gre: GRE over IPv4 demultiplexer driver [ 2.510540] ip_gre: GRE over IPv4 tunneling driver [ 2.531419] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 2.531489] #PF: supervisor write access in kernel mode [ 2.531536] #PF: error_code(0x0002) - not-present page [ 2.531570] PGD 6224067 P4D 6224067 PUD 6223067 PMD 0 [ 2.531612] Oops: Oops: 0002 [#1] SMP [ 2.531645] CPU: 3 UID: 0 PID: 320 Comm: ip Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) [ 2.531708] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 2.531757] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 2.531805] 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 [ 2.531928] RSP: 0018:ffffa48b402b3628 EFLAGS: 00010046 [ 2.531967] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 00000000ffffffff [ 2.532024] RDX: ffffa48b402b3660 RSI: 0000000000000000 RDI: 0000000000000000 [ 2.532076] RBP: ffffa48b402b3660 R08: ffffffff86e62a60 R09: 0000000000000101 [ 2.532126] R10: ffffffff876080d8 R11: ffffa48b4013cff8 R12: 0000000000000000 [ 2.532177] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 2.532235] FS: 00007f9b0daf3800(0000) GS:ffff8ce9b7f5a000(0000) knlGS:0000000000000000 [ 2.532296] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.532348] CR2: 0000000000000000 CR3: 000000000488d006 CR4: 0000000000772ef0 [ 2.532401] PKRU: 55555554 [ 2.532423] Call Trace: [ 2.532442] [ 2.532465] __cancel_work+0x29/0xe0 [ 2.532500] ? dev_deactivate_many+0x2c9/0x300 [ 2.532545] __cancel_work_sync+0x16/0x80 [ 2.532577] __dev_close_many+0x11b/0x280 [ 2.532613] __dev_change_flags+0xed/0x220 [ 2.532642] netif_change_flags+0x25/0x60 [ 2.532679] dev_change_flags+0x40/0x80 [ 2.532704] cycle_netdev+0x36/0x70 [vrf] [ 2.532735] vrf_add_slave+0x5a/0xb0 [vrf] [ 2.532765] do_set_master+0x10b/0x170 [ 2.532797] do_setlink.constprop.0+0x320/0x1120 [ 2.532838] ? __nla_validate_parse+0x5d/0xe70 [ 2.532883] ? __kmalloc_cache_noprof+0x3a5/0x4b0 [ 2.532927] rtnl_newlink+0x7fa/0xbc0 [ 2.532958] ? virtio_fs_enqueue_req+0x352/0x570 [ 2.532998] ? __rtnl_unlock+0x37/0x60 [ 2.533025] ? netdev_run_todo+0x63/0x550 [ 2.533057] ? rtnl_setlink+0x2c0/0x2c0 [ 2.533088] rtnetlink_rcv_msg+0x358/0x400 [ 2.533119] ? get_page_from_freelist+0x15b4/0x1770 [ 2.533159] ? rtnl_calcit.isra.0+0x110/0x110 [ 2.533199] netlink_rcv_skb+0x57/0x100 [ 2.533230] netlink_unicast+0x252/0x380 [ 2.533261] ? __alloc_skb+0xfc/0x1e0 [ 2.533293] netlink_sendmsg+0x1be/0x3e0 [ 2.533322] ____sys_sendmsg+0x132/0x260 [ 2.533356] ? copy_msghdr_from_user+0x6c/0xa0 [ 2.533395] ___sys_sendmsg+0x87/0xd0 [ 2.533427] ? ___sys_recvmsg+0x87/0xc0 [ 2.533458] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 2.533497] ? fsnotify_grab_connector+0x48/0x80 [ 2.533538] ? fsnotify_destroy_marks+0x29/0x150 [ 2.533572] __sys_sendmsg+0x71/0xd0 [ 2.533606] do_syscall_64+0xa4/0xfd0 [ 2.533637] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 2.533679] RIP: 0033:0x7f9b0dcc11d7 [ 2.533709] 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 [ 2.533834] RSP: 002b:00007ffc673e91f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2.533891] RAX: ffffffffffffffda RBX: 00007ffc673e9920 RCX: 00007f9b0dcc11d7 [ 2.533944] RDX: 0000000000000000 RSI: 00007ffc673e9260 RDI: 0000000000000005 [ 2.533994] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 2.534044] R10: 0000000026ec5910 R11: 0000000000000246 R12: 0000000000000004 [ 2.534097] R13: 00000000691cc3f4 R14: 0000000000499600 R15: 0000000000000000 [ 2.534149] [ 2.534165] Modules linked in: ip_gre gre vrf veth [ 2.534205] CR2: 0000000000000000 [ 2.534231] ---[ end trace 0000000000000000 ]--- [ 2.534264] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 2.534300] 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 [ 2.534420] RSP: 0018:ffffa48b402b3628 EFLAGS: 00010046 [ 2.534454] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 00000000ffffffff [ 2.534506] RDX: ffffa48b402b3660 RSI: 0000000000000000 RDI: 0000000000000000 [ 2.534559] RBP: ffffa48b402b3660 R08: ffffffff86e62a60 R09: 0000000000000101 [ 2.534611] R10: ffffffff876080d8 R11: ffffa48b4013cff8 R12: 0000000000000000 [ 2.534663] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 2.534714] FS: 00007f9b0daf3800(0000) GS:ffff8ce9b7f5a000(0000) knlGS:0000000000000000 [ 2.534769] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.534815] CR2: 0000000000000000 CR3: 000000000488d006 CR4: 0000000000772ef0 [ 2.534865] PKRU: 55555554 [ 2.534881] note: ip[320] exited with irqs disabled [ 2.535074] ip (320) used greatest stack depth: 11448 bytes left WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr