[ 2.252469] ip (251) used greatest stack depth: 12136 bytes left [ 12.046229] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 12.046326] #PF: supervisor write access in kernel mode [ 12.046392] #PF: error_code(0x0002) - not-present page [ 12.046450] PGD 9128067 P4D 9128067 PUD 9123067 PMD 0 [ 12.046518] Oops: Oops: 0002 [#1] SMP [ 12.046570] CPU: 3 UID: 0 PID: 665 Comm: ip Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) [ 12.046676] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.046748] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 12.046822] 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 [ 12.047021] RSP: 0018:ffffaac0c0be7628 EFLAGS: 00010046 [ 12.047079] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000000 [ 12.047160] RDX: ffffaac0c0be7660 RSI: 0000000000000000 RDI: 0000000000000000 [ 12.047246] RBP: ffffaac0c0be7660 R08: ffff9fa041398883 R09: 0000000000000002 [ 12.047329] R10: ffff9fa07eda8640 R11: ffff9fa041398090 R12: 0000000000000000 [ 12.047411] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 12.047499] FS: 00007f08eaeeb800(0000) GS:ffff9fa0e4f58000(0000) knlGS:0000000000000000 [ 12.047593] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 12.047659] CR2: 0000000000000000 CR3: 0000000009194005 CR4: 0000000000772ef0 [ 12.047746] PKRU: 55555554 [ 12.047772] Call Trace: [ 12.047806] [ 12.047843] __cancel_work+0x29/0xe0 [ 12.047897] ? linkwatch_urgent_event+0x2f/0xb0 [ 12.047971] __cancel_work_sync+0x16/0x80 [ 12.048022] __dev_close_many+0x11b/0x280 [ 12.048074] __dev_change_flags+0xed/0x220 [ 12.048126] netif_change_flags+0x25/0x60 [ 12.048173] dev_change_flags+0x40/0x80 [ 12.048216] cycle_netdev+0x36/0x70 [ 12.048266] vrf_add_slave+0x5a/0xb0 [ 12.048307] do_set_master+0x10b/0x170 [ 12.048351] do_setlink.constprop.0+0x320/0x1120 [ 12.048419] ? __nla_validate_parse+0x5d/0xe70 [ 12.048482] ? __kmalloc_cache_noprof+0x3a5/0x4b0 [ 12.048548] rtnl_newlink+0x7fa/0xbc0 [ 12.048597] ? virtio_fs_enqueue_req+0x352/0x570 [ 12.048659] ? __rtnl_unlock+0x37/0x60 [ 12.048701] ? netdev_run_todo+0x63/0x550 [ 12.048750] ? rtnl_setlink+0x2c0/0x2c0 [ 12.048799] rtnetlink_rcv_msg+0x358/0x400 [ 12.048839] ? get_page_from_freelist+0x15b4/0x1770 [ 12.048901] ? rtnl_calcit.isra.0+0x110/0x110 [ 12.048957] netlink_rcv_skb+0x57/0x100 [ 12.049007] netlink_unicast+0x252/0x380 [ 12.049052] ? __alloc_skb+0xfc/0x1e0 [ 12.049098] netlink_sendmsg+0x1be/0x3e0 [ 12.049149] ____sys_sendmsg+0x132/0x260 [ 12.049199] ? copy_msghdr_from_user+0x6c/0xa0 [ 12.049255] ___sys_sendmsg+0x87/0xd0 [ 12.049306] ? ___sys_recvmsg+0x87/0xc0 [ 12.049354] ? fsnotify_grab_connector+0x48/0x80 [ 12.049417] ? fsnotify_destroy_marks+0x29/0x150 [ 12.049474] __sys_sendmsg+0x71/0xd0 [ 12.049523] do_syscall_64+0xa4/0xfd0 [ 12.049573] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 12.049637] RIP: 0033:0x7f08eb0b91d7 [ 12.049689] 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 [ 12.049885] RSP: 002b:00007ffe989e7338 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 12.049976] RAX: ffffffffffffffda RBX: 00007ffe989e7a70 RCX: 00007f08eb0b91d7 [ 12.050061] RDX: 0000000000000000 RSI: 00007ffe989e73a0 RDI: 0000000000000005 [ 12.050145] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000 [ 12.050224] R10: 00000000222f9910 R11: 0000000000000246 R12: 0000000000000003 [ 12.050302] R13: 00000000691cbbf4 R14: 0000000000499600 R15: 0000000000000000 [ 12.050387] [ 12.050414] Modules linked in: dummy veth nf_log_syslog nft_log nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nf_tables [ 12.050547] CR2: 0000000000000000 [ 12.050596] ---[ end trace 0000000000000000 ]--- [ 12.050654] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 12.050718] 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 [ 12.050914] RSP: 0018:ffffaac0c0be7628 EFLAGS: 00010046 [ 12.050967] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000000 [ 12.051045] RDX: ffffaac0c0be7660 RSI: 0000000000000000 RDI: 0000000000000000 [ 12.051122] RBP: ffffaac0c0be7660 R08: ffff9fa041398883 R09: 0000000000000002 [ 12.051207] R10: ffff9fa07eda8640 R11: ffff9fa041398090 R12: 0000000000000000 [ 12.051292] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 12.051378] FS: 00007f08eaeeb800(0000) GS:ffff9fa0e4f58000(0000) knlGS:0000000000000000 [ 12.051460] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 12.051529] CR2: 0000000000000000 CR3: 0000000009194005 CR4: 0000000000772ef0 [ 12.051617] PKRU: 55555554 [ 12.051643] note: ip[665] exited with irqs disabled [ 12.052057] ip (665) used greatest stack depth: 11448 bytes left WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr