[ 1.834823] ip (246) used greatest stack depth: 12424 bytes left [ 2.361641] br1: port 1(veth1) entered blocking state [ 2.361724] br1: port 1(veth1) entered disabled state [ 2.361787] veth1: entered allmulticast mode [ 2.361892] veth1: entered promiscuous mode [ 2.388355] br1: port 1(veth1) entered blocking state [ 2.388457] br1: port 1(veth1) entered forwarding state [ 2.401971] br1: port 2(veth2) entered blocking state [ 2.402036] br1: port 2(veth2) entered disabled state [ 2.402091] veth2: entered allmulticast mode [ 2.402183] veth2: entered promiscuous mode [ 2.426578] br1: port 2(veth2) entered blocking state [ 2.426637] br1: port 2(veth2) entered forwarding state [ 20.250624] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 20.250734] #PF: supervisor write access in kernel mode [ 20.250785] #PF: error_code(0x0002) - not-present page [ 20.250821] PGD 7da6067 P4D 7da6067 PUD 4ed3067 PMD 0 [ 20.250869] Oops: Oops: 0002 [#1] SMP [ 20.250902] CPU: 3 UID: 0 PID: 840 Comm: ip Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) [ 20.250974] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 20.251025] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 20.251093] 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 [ 20.251233] RSP: 0018:ffffbe6cc0c8b6b8 EFLAGS: 00010046 [ 20.251274] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000004 [ 20.251329] RDX: ffffbe6cc0c8b6f0 RSI: 0000000000000000 RDI: 0000000000000000 [ 20.251383] RBP: ffffbe6cc0c8b6f0 R08: ffff95e941398873 R09: ffffffff9b06cc80 [ 20.251436] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 20.251498] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 20.251560] FS: 00007f5a55d79800(0000) GS:ffff95e9e355a000(0000) knlGS:0000000000000000 [ 20.251633] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.251677] CR2: 0000000000000000 CR3: 000000000790d004 CR4: 0000000000772ef0 [ 20.251741] PKRU: 55555554 [ 20.251761] Call Trace: [ 20.251784] [ 20.251814] __cancel_work+0x29/0xe0 [ 20.251856] ? linkwatch_urgent_event+0x2f/0xb0 [ 20.251919] __cancel_work_sync+0x16/0x80 [ 20.251954] __dev_close_many+0x11b/0x280 [ 20.252007] __dev_change_flags+0xed/0x220 [ 20.252045] netif_change_flags+0x25/0x60 [ 20.252082] do_setlink.constprop.0+0x2fe/0x1120 [ 20.252124] ? __nla_validate_parse+0x5d/0xe70 [ 20.252171] ? __kmalloc_cache_noprof+0x3a5/0x4b0 [ 20.252225] rtnl_newlink+0x7fa/0xbc0 [ 20.252258] ? virtio_fs_enqueue_req+0x352/0x570 [ 20.252309] ? netdev_run_todo+0x63/0x550 [ 20.252340] ? rtnl_setlink+0x2c0/0x2c0 [ 20.252369] rtnetlink_rcv_msg+0x358/0x400 [ 20.252403] ? get_page_from_freelist+0x15b4/0x1770 [ 20.252446] ? rtnl_calcit.isra.0+0x110/0x110 [ 20.252483] netlink_rcv_skb+0x57/0x100 [ 20.252530] netlink_unicast+0x252/0x380 [ 20.252569] ? __alloc_skb+0xfc/0x1e0 [ 20.252609] netlink_sendmsg+0x1be/0x3e0 [ 20.252639] ____sys_sendmsg+0x132/0x260 [ 20.252674] ? copy_msghdr_from_user+0x6c/0xa0 [ 20.252727] ___sys_sendmsg+0x87/0xd0 [ 20.252759] ? do_wp_page+0x369/0xe90 [ 20.252795] ? ___pte_offset_map+0x1b/0xd0 [ 20.252829] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 20.252881] ? fsnotify_grab_connector+0x48/0x80 [ 20.252935] ? fsnotify_destroy_marks+0x29/0x150 [ 20.252977] __sys_sendmsg+0x71/0xd0 [ 20.253013] do_syscall_64+0xa4/0xfd0 [ 20.253069] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 20.253136] RIP: 0033:0x7f5a55f471d7 [ 20.253193] 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 [ 20.253353] RSP: 002b:00007ffff492b108 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 20.253410] RAX: ffffffffffffffda RBX: 00007ffff492b830 RCX: 00007f5a55f471d7 [ 20.253467] RDX: 0000000000000000 RSI: 00007ffff492b170 RDI: 0000000000000005 [ 20.253529] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 20.253594] R10: 00007f5a55e43f60 R11: 0000000000000246 R12: 0000000000000003 [ 20.253654] R13: 00000000691cc2c8 R14: 0000000000499600 R15: 0000000000000000 [ 20.253720] [ 20.253742] Modules linked in: bridge stp llc vrf veth [ 20.253797] CR2: 0000000000000000 [ 20.253827] ---[ end trace 0000000000000000 ]--- [ 20.253878] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 20.253928] 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 [ 20.254063] RSP: 0018:ffffbe6cc0c8b6b8 EFLAGS: 00010046 [ 20.254102] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000004 [ 20.254159] RDX: ffffbe6cc0c8b6f0 RSI: 0000000000000000 RDI: 0000000000000000 [ 20.254212] RBP: ffffbe6cc0c8b6f0 R08: ffff95e941398873 R09: ffffffff9b06cc80 [ 20.254261] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 20.254309] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 20.254365] FS: 00007f5a55d79800(0000) GS:ffff95e9e355a000(0000) knlGS:0000000000000000 [ 20.254422] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.254472] CR2: 0000000000000000 CR3: 000000000790d004 CR4: 0000000000772ef0 [ 20.254538] PKRU: 55555554 [ 20.254561] note: ip[840] exited with irqs disabled [ 20.254817] ip (840) used greatest stack depth: 11592 bytes left WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr