[ 2.190743] ip (269) used greatest stack depth: 12168 bytes left [ 7.598327] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 7.598408] #PF: supervisor write access in kernel mode [ 7.598449] #PF: error_code(0x0002) - not-present page [ 7.598494] PGD 48cd067 P4D 48cd067 PUD 4942067 PMD 0 [ 7.598540] Oops: Oops: 0002 [#1] SMP [ 7.598580] CPU: 3 UID: 0 PID: 332 Comm: ip Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) [ 7.598664] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 7.598731] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 7.598788] 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 [ 7.598945] RSP: 0018:ffffb58f806b76b8 EFLAGS: 00010046 [ 7.598988] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000000 [ 7.599055] RDX: ffffb58f806b76f0 RSI: 0000000000000000 RDI: 0000000000000000 [ 7.599123] RBP: ffffb58f806b76f0 R08: ffff8fff013a0873 R09: 0000000000000002 [ 7.599191] R10: ffff8fff3eda8840 R11: ffff8fff013a0090 R12: 0000000000000000 [ 7.599258] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 7.599328] FS: 00007f7e6dbd0800(0000) GS:ffff8fff8d111000(0000) knlGS:0000000000000000 [ 7.599401] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 7.599455] CR2: 0000000000000000 CR3: 0000000001b23005 CR4: 0000000000772ef0 [ 7.599522] PKRU: 55555554 [ 7.599542] Call Trace: [ 7.599565] [ 7.599586] __cancel_work+0x29/0xe0 [ 7.599624] ? linkwatch_urgent_event+0x2f/0xb0 [ 7.599675] __cancel_work_sync+0x16/0x80 [ 7.599713] __dev_close_many+0x113/0x2b0 [ 7.599747] __dev_change_flags+0xed/0x220 [ 7.599786] netif_change_flags+0x25/0x60 [ 7.599825] do_setlink.constprop.0+0x2fd/0x1170 [ 7.599870] ? __nla_validate_parse+0x5d/0xe70 [ 7.599914] ? __kmalloc_cache_noprof+0x3a5/0x4b0 [ 7.599967] rtnl_newlink+0x7fa/0xc00 [ 7.600000] ? virtio_fs_enqueue_req+0x352/0x570 [ 7.600052] ? netdev_run_todo+0x63/0x550 [ 7.600086] ? rtnl_setlink+0x2c0/0x2c0 [ 7.600120] rtnetlink_rcv_msg+0x358/0x400 [ 7.600153] ? get_page_from_freelist+0x15b4/0x1770 [ 7.600198] ? rtnl_calcit.isra.0+0x110/0x110 [ 7.600244] netlink_rcv_skb+0x57/0x100 [ 7.600285] netlink_unicast+0x252/0x380 [ 7.600324] ? __alloc_skb+0xfc/0x1e0 [ 7.600358] netlink_sendmsg+0x1be/0x3e0 [ 7.600391] ____sys_sendmsg+0x132/0x260 [ 7.600425] ? copy_msghdr_from_user+0x6c/0xa0 [ 7.600469] ___sys_sendmsg+0x87/0xd0 [ 7.600503] ? do_wp_page+0x369/0xe90 [ 7.600534] ? ___pte_offset_map+0x1b/0xd0 [ 7.600568] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 7.600619] ? fsnotify_grab_connector+0x48/0x80 [ 7.600663] ? fsnotify_destroy_marks+0x29/0x150 [ 7.600708] __sys_sendmsg+0x71/0xd0 [ 7.600742] do_syscall_64+0xa4/0xfd0 [ 7.600783] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 7.600828] RIP: 0033:0x7f7e6dd9e1d7 [ 7.600861] 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 [ 7.601019] RSP: 002b:00007ffd5a504988 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 7.601087] RAX: ffffffffffffffda RBX: 00007ffd5a5050c0 RCX: 00007f7e6dd9e1d7 [ 7.601155] RDX: 0000000000000000 RSI: 00007ffd5a5049f0 RDI: 0000000000000005 [ 7.601222] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078 [ 7.601290] R10: 00007f7e6dc9a510 R11: 0000000000000246 R12: 0000000000000003 [ 7.601357] R13: 00000000691cba98 R14: 0000000000499600 R15: 0000000000000000 [ 7.601425] [ 7.601446] Modules linked in: [ 7.601482] CR2: 0000000000000000 [ 7.601516] ---[ end trace 0000000000000000 ]--- [ 7.601558] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 7.601602] 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 [ 7.601763] RSP: 0018:ffffb58f806b76b8 EFLAGS: 00010046 [ 7.601809] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000000 [ 7.601877] RDX: ffffb58f806b76f0 RSI: 0000000000000000 RDI: 0000000000000000 [ 7.601944] RBP: ffffb58f806b76f0 R08: ffff8fff013a0873 R09: 0000000000000002 [ 7.602012] R10: ffff8fff3eda8840 R11: ffff8fff013a0090 R12: 0000000000000000 [ 7.602080] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001 [ 7.602148] FS: 00007f7e6dbd0800(0000) GS:ffff8fff8d111000(0000) knlGS:0000000000000000 [ 7.602215] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 7.602270] CR2: 0000000000000000 CR3: 0000000001b23005 CR4: 0000000000772ef0 [ 7.602339] PKRU: 55555554 [ 7.602361] note: ip[332] exited with irqs disabled [ 7.602588] ip (332) used greatest stack depth: 11592 bytes left WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr