[ 1.867386] xdummy0: entered promiscuous mode [ 1.870909] xdummy0: left promiscuous mode [ 1.871000] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 1.871047] #PF: supervisor write access in kernel mode [ 1.871090] #PF: error_code(0x0002) - not-present page [ 1.871132] PGD 4b03067 P4D 4b03067 PUD 4af4067 PMD 0 [ 1.871174] Oops: Oops: 0002 [#1] SMP [ 1.871208] CPU: 2 UID: 0 PID: 250 Comm: tap Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) [ 1.871280] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1.871331] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 1.871380] 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 [ 1.871520] RSP: 0018:ffffaecb405bf748 EFLAGS: 00010046 [ 1.871563] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000001 [ 1.871620] RDX: ffffaecb405bf780 RSI: 0000000000000000 RDI: 0000000000000000 [ 1.871679] RBP: ffffaecb405bf780 R08: ffffffffb315ba28 R09: 00000000ffffdfff [ 1.871738] R10: ffffffffb307ba40 R11: ffffffffb312ba40 R12: 0000000000000000 [ 1.871797] R13: ffffaecb405bf878 R14: 0000000000000020 R15: 00000000ffffffff [ 1.871860] FS: 00007efeda786b80(0000) GS:ffff9809cb491000(0000) knlGS:0000000000000000 [ 1.871919] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1.871968] CR2: 0000000000000000 CR3: 0000000004af1003 CR4: 0000000000772ef0 [ 1.872026] PKRU: 55555554 [ 1.872049] Call Trace: [ 1.872070] [ 1.872094] __cancel_work+0x29/0xe0 [ 1.872131] __cancel_work_sync+0x16/0x80 [ 1.872163] __dev_close_many+0x113/0x2b0 [ 1.872203] netif_close_many+0x98/0x160 [ 1.872240] unregister_netdevice_many_notify+0x1ea/0xaa0 [ 1.872282] rtnl_dellink+0x156/0x350 [ 1.872321] ? get_page_from_freelist+0x15b4/0x1770 [ 1.872367] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 1.872411] rtnetlink_rcv_msg+0x358/0x400 [ 1.872445] ? rtnl_calcit.isra.0+0x110/0x110 [ 1.872485] netlink_rcv_skb+0x57/0x100 [ 1.872525] netlink_unicast+0x252/0x380 [ 1.872555] ? __alloc_skb+0xfc/0x1e0 [ 1.872596] netlink_sendmsg+0x1be/0x3e0 [ 1.872628] __sys_sendto+0x12a/0x1b0 [ 1.872663] ? alloc_file_pseudo+0xae/0x110 [ 1.872699] ? sock_alloc_file+0x63/0xc0 [ 1.872730] ? __sys_socket+0xca/0x110 [ 1.872761] __x64_sys_sendto+0x24/0x30 [ 1.872792] do_syscall_64+0xa4/0xfd0 [ 1.872829] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 1.872870] RIP: 0033:0x7efeda899120 [ 1.872901] Code: ff ff 64 89 02 eb bd 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 1d 45 31 c9 45 31 c0 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 68 c3 0f 1f 80 00 00 00 00 41 54 48 83 ec 20 [ 1.873023] RSP: 002b:00007fff39466ad8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 1.873080] RAX: ffffffffffffffda RBX: 0000000000000030 RCX: 00007efeda899120 [ 1.873137] RDX: 0000000000000030 RSI: 00007fff39466ae0 RDI: 0000000000000005 [ 1.873193] RBP: 00000000004047d0 R08: 0000000000000000 R09: 0000000000000000 [ 1.873250] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005 [ 1.873306] R13: 00007fff39466ae0 R14: 00007efeda785000 R15: 0000000000407160 [ 1.873363] [ 1.873386] Modules linked in: [ 1.873419] CR2: 0000000000000000 [ 1.873451] ---[ end trace 0000000000000000 ]--- [ 1.873490] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 1.873538] 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 [ 1.873658] RSP: 0018:ffffaecb405bf748 EFLAGS: 00010046 [ 1.873697] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000001 [ 1.873761] RDX: ffffaecb405bf780 RSI: 0000000000000000 RDI: 0000000000000000 [ 1.873817] RBP: ffffaecb405bf780 R08: ffffffffb315ba28 R09: 00000000ffffdfff [ 1.873873] R10: ffffffffb307ba40 R11: ffffffffb312ba40 R12: 0000000000000000 [ 1.873924] R13: ffffaecb405bf878 R14: 0000000000000020 R15: 00000000ffffffff [ 1.873982] FS: 00007efeda786b80(0000) GS:ffff9809cb491000(0000) knlGS:0000000000000000 [ 1.874039] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1.874086] CR2: 0000000000000000 CR3: 0000000004af1003 CR4: 0000000000772ef0 [ 1.874142] PKRU: 55555554 [ 1.874164] note: tap[250] exited with irqs disabled [ 1.874354] tap (250) used greatest stack depth: 11736 bytes left WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr