[ 1.438661] ip (249) used greatest stack depth: 12344 bytes left [ 6.912289] veth2: entered promiscuous mode [ 24.138326] 8021q: 802.1Q VLAN Support v1.8 [ 24.202117] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 24.202187] #PF: supervisor write access in kernel mode [ 24.202223] #PF: error_code(0x0002) - not-present page [ 24.202253] PGD 37d6067 P4D 37d6067 PUD 2def067 PMD 0 [ 24.202302] Oops: Oops: 0002 [#1] SMP [ 24.202338] CPU: 2 UID: 0 PID: 355 Comm: ip Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) [ 24.202414] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 24.202454] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 24.202512] 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 [ 24.202631] RSP: 0018:ffffbfd2802c3628 EFLAGS: 00010046 [ 24.202667] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000000 [ 24.202718] RDX: ffffbfd2802c3660 RSI: 0000000000000000 RDI: 0000000000000000 [ 24.202769] RBP: ffffbfd2802c3660 R08: 0000000000000001 R09: 0000000000000001 [ 24.202816] R10: ffffffffae8080d8 R11: ffffbfd280110ff8 R12: 0000000000000000 [ 24.202861] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 24.202916] FS: 00007fcc9ce61800(0000) GS:ffff9e114fcda000(0000) knlGS:0000000000000000 [ 24.202967] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.203009] CR2: 0000000000000000 CR3: 0000000002f14002 CR4: 0000000000772ef0 [ 24.203061] PKRU: 55555554 [ 24.203082] Call Trace: [ 24.203111] [ 24.203135] __cancel_work+0x29/0xe0 [ 24.203165] ? queue_delayed_work_on+0x54/0x60 [ 24.203201] __cancel_work_sync+0x16/0x80 [ 24.203230] __dev_close_many+0x11b/0x280 [ 24.203271] __dev_change_flags+0xed/0x220 [ 24.203316] netif_change_flags+0x25/0x60 [ 24.203342] dev_change_flags+0x40/0x80 [ 24.203372] cycle_netdev+0x36/0x70 [vrf] [ 24.203404] vrf_add_slave+0x5a/0xb0 [vrf] [ 24.203432] do_set_master+0x10b/0x170 [ 24.203467] do_setlink.constprop.0+0x320/0x1120 [ 24.203506] ? __nla_validate_parse+0x5d/0xe70 [ 24.203550] ? __kmalloc_cache_noprof+0x3a5/0x4b0 [ 24.203605] rtnl_newlink+0x7fa/0xbc0 [ 24.203634] ? virtio_fs_enqueue_req+0x352/0x570 [ 24.203676] ? __rtnl_unlock+0x37/0x60 [ 24.203704] ? netdev_run_todo+0x63/0x550 [ 24.203733] ? rtnl_setlink+0x2c0/0x2c0 [ 24.203767] rtnetlink_rcv_msg+0x358/0x400 [ 24.203793] ? get_page_from_freelist+0x15b4/0x1770 [ 24.203832] ? rtnl_calcit.isra.0+0x110/0x110 [ 24.203868] netlink_rcv_skb+0x57/0x100 [ 24.203919] netlink_unicast+0x252/0x380 [ 24.203948] ? __alloc_skb+0xfc/0x1e0 [ 24.203977] netlink_sendmsg+0x1be/0x3e0 [ 24.204006] ____sys_sendmsg+0x132/0x260 [ 24.204041] ? copy_msghdr_from_user+0x6c/0xa0 [ 24.204078] ___sys_sendmsg+0x87/0xd0 [ 24.204117] ? ___sys_recvmsg+0x87/0xc0 [ 24.204146] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 24.204186] ? fsnotify_grab_connector+0x48/0x80 [ 24.204225] ? fsnotify_destroy_marks+0x29/0x150 [ 24.204262] __sys_sendmsg+0x71/0xd0 [ 24.204303] do_syscall_64+0xa4/0xfd0 [ 24.204339] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 24.204384] RIP: 0033:0x7fcc9d02f1d7 [ 24.204414] 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 [ 24.204524] RSP: 002b:00007ffc144413f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 24.204576] RAX: ffffffffffffffda RBX: 00007ffc14441b20 RCX: 00007fcc9d02f1d7 [ 24.204629] RDX: 0000000000000000 RSI: 00007ffc14441460 RDI: 0000000000000005 [ 24.204674] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 24.204726] R10: 000000003cec5910 R11: 0000000000000246 R12: 0000000000000004 [ 24.204779] R13: 00000000691cb75a R14: 0000000000499600 R15: 0000000000000000 [ 24.204825] [ 24.204845] Modules linked in: 8021q vrf veth [ 24.204887] CR2: 0000000000000000 [ 24.204922] ---[ end trace 0000000000000000 ]--- [ 24.204959] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 24.204996] 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 [ 24.205116] RSP: 0018:ffffbfd2802c3628 EFLAGS: 00010046 [ 24.205147] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000000 [ 24.205198] RDX: ffffbfd2802c3660 RSI: 0000000000000000 RDI: 0000000000000000 [ 24.205243] RBP: ffffbfd2802c3660 R08: 0000000000000001 R09: 0000000000000001 [ 24.205300] R10: ffffffffae8080d8 R11: ffffbfd280110ff8 R12: 0000000000000000 [ 24.205349] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 24.205402] FS: 00007fcc9ce61800(0000) GS:ffff9e114fcda000(0000) knlGS:0000000000000000 [ 24.205453] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.205495] CR2: 0000000000000000 CR3: 0000000002f14002 CR4: 0000000000772ef0 [ 24.205541] PKRU: 55555554 [ 24.205561] note: ip[355] exited with irqs disabled [ 24.205736] ip (355) used greatest stack depth: 11448 bytes left WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr