[ 5.832790] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 5.832911] #PF: supervisor write access in kernel mode [ 5.832962] #PF: error_code(0x0002) - not-present page [ 5.833007] PGD 7b43067 P4D 7b43067 PUD 7b56067 PMD 0 [ 5.833061] Oops: Oops: 0002 [#1] SMP [ 5.833111] CPU: 0 UID: 0 PID: 807 Comm: ip Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) [ 5.833210] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 5.833271] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 5.833356] 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 [ 5.833528] RSP: 0018:ffffb5d1c0f2f610 EFLAGS: 00010046 [ 5.833583] RAX: 0000000000000246 RBX: 0000000000000000 RCX: ffff9d84830e20c8 [ 5.833664] RDX: ffffb5d1c0f2f648 RSI: 0000000000000000 RDI: 0000000000000000 [ 5.833747] RBP: ffffb5d1c0f2f648 R08: ffffffffa3893e00 R09: 0000000000000101 [ 5.833823] R10: ffffffffa44080d8 R11: ffffb5d1c0003ff8 R12: 0000000000000000 [ 5.833903] R13: ffffb5d1c0f2f740 R14: 0000000000000020 R15: 00000000ffffffff [ 5.833981] FS: 00007f6ec111f800(0000) GS:ffff9d8519f91000(0000) knlGS:0000000000000000 [ 5.834065] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 5.834137] CR2: 0000000000000000 CR3: 0000000007a9d004 CR4: 0000000000772ef0 [ 5.834214] PKRU: 55555554 [ 5.834243] Call Trace: [ 5.834276] [ 5.834317] __cancel_work+0x29/0xe0 [ 5.834363] ? queue_delayed_work_on+0x54/0x60 [ 5.834428] __cancel_work_sync+0x16/0x80 [ 5.834474] __dev_close_many+0x113/0x2b0 [ 5.834540] netif_close_many+0x98/0x160 [ 5.834581] unregister_netdevice_many_notify+0x1ea/0xaa0 [ 5.834641] ? unregister_netdevice_queue+0x29/0xe0 [ 5.834698] rtnl_dellink+0x156/0x350 [ 5.834753] ? virtio_fs_enqueue_req+0x352/0x570 [ 5.834824] ? netdev_run_todo+0x63/0x550 [ 5.834870] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 5.834929] rtnetlink_rcv_msg+0x358/0x400 [ 5.834976] ? get_page_from_freelist+0x15b4/0x1770 [ 5.835036] ? rtnl_calcit.isra.0+0x110/0x110 [ 5.835085] netlink_rcv_skb+0x57/0x100 [ 5.835140] netlink_unicast+0x252/0x380 [ 5.835184] ? __alloc_skb+0xfc/0x1e0 [ 5.835233] netlink_sendmsg+0x1be/0x3e0 [ 5.835276] ____sys_sendmsg+0x132/0x260 [ 5.835328] ? copy_msghdr_from_user+0x6c/0xa0 [ 5.835388] ___sys_sendmsg+0x87/0xd0 [ 5.835428] ? do_wp_page+0x369/0xe90 [ 5.835472] ? ___pte_offset_map+0x1b/0xd0 [ 5.835517] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 5.835587] ? fsnotify_grab_connector+0x48/0x80 [ 5.835650] ? fsnotify_destroy_marks+0x29/0x150 [ 5.835705] __sys_sendmsg+0x71/0xd0 [ 5.835743] do_syscall_64+0xa4/0xfd0 [ 5.835801] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 5.835863] RIP: 0033:0x7f6ec12ed1d7 [ 5.835914] 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 [ 5.836087] RSP: 002b:00007ffe353619f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 5.836172] RAX: ffffffffffffffda RBX: 00007ffe35362130 RCX: 00007f6ec12ed1d7 [ 5.836246] RDX: 0000000000000000 RSI: 00007ffe35361a60 RDI: 0000000000000005 [ 5.836323] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 5.836397] R10: 00007f6ec11e9510 R11: 0000000000000246 R12: 0000000000000002 [ 5.836478] R13: 00000000691cc8ee R14: 0000000000499600 R15: 0000000000000000 [ 5.836555] [ 5.836579] Modules linked in: [ 5.836621] CR2: 0000000000000000 [ 5.836663] ---[ end trace 0000000000000000 ]--- [ 5.836719] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 5.836776] 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 [ 5.836958] RSP: 0018:ffffb5d1c0f2f610 EFLAGS: 00010046 [ 5.837009] RAX: 0000000000000246 RBX: 0000000000000000 RCX: ffff9d84830e20c8 [ 5.837077] RDX: ffffb5d1c0f2f648 RSI: 0000000000000000 RDI: 0000000000000000 [ 5.837159] RBP: ffffb5d1c0f2f648 R08: ffffffffa3893e00 R09: 0000000000000101 [ 5.837230] R10: ffffffffa44080d8 R11: ffffb5d1c0003ff8 R12: 0000000000000000 [ 5.837308] R13: ffffb5d1c0f2f740 R14: 0000000000000020 R15: 00000000ffffffff [ 5.837386] FS: 00007f6ec111f800(0000) GS:ffff9d8519f91000(0000) knlGS:0000000000000000 [ 5.837463] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 5.837531] CR2: 0000000000000000 CR3: 0000000007a9d004 CR4: 0000000000772ef0 [ 5.837607] PKRU: 55555554 [ 5.837632] note: ip[807] exited with irqs disabled [ 5.837952] ip (807) used greatest stack depth: 11432 bytes left WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr