[ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.52' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 27.608662] netlink: 20 bytes leftover after parsing attributes in process `syz-executor926'. [ 27.617758] netlink: 12 bytes leftover after parsing attributes in process `syz-executor926'. [ 27.684455] kasan: CONFIG_KASAN_INLINE enabled [ 27.689252] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 27.696664] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 27.702884] Modules linked in: [ 27.706232] CPU: 1 PID: 7979 Comm: syz-executor926 Not tainted 4.14.218-syzkaller #0 [ 27.714133] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.723599] task: ffff8880959ea300 task.stack: ffff8880b3a50000 [ 27.729650] RIP: 0010:vxlan_fdb_destroy+0xb4/0x1f0 [ 27.734566] RSP: 0018:ffff8880b3a57150 EFLAGS: 00010a02 [ 27.739930] RAX: dffffc0000000000 RBX: ffff8880afc86d80 RCX: 1ffff1101674ae20 [ 27.747190] RDX: 1bd5a00000000040 RSI: ffff8880afc86d80 RDI: ffff8880afc86d88 [ 27.754696] RBP: 0000000000000000 R08: ffffffff8b9be5a8 R09: 0000000000000000 [ 27.762090] R10: 0000000000000000 R11: 0000000000000000 R12: dead000000000200 [ 27.769378] R13: 0000000000000000 R14: ffff8880b3a57250 R15: ffff8880b46be500 [ 27.776945] FS: 00007fb3c3a71700(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 [ 27.785389] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.791260] CR2: 0000563949a716e8 CR3: 00000000a9488000 CR4: 00000000001406e0 [ 27.798521] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.805787] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.813047] Call Trace: [ 27.815719] __vxlan_dev_create+0x3b0/0x710 [ 27.820035] ? vxlan_fdb_add+0x2e0/0x2e0 [ 27.824084] ? vxlan_setup+0x460/0x460 [ 27.827957] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 27.832959] ? kmem_cache_alloc_node_trace+0x383/0x400 [ 27.838223] vxlan_newlink+0xa3/0xe0 [ 27.841923] ? __vxlan_dev_create+0x710/0x710 [ 27.846482] ? rtnl_create_link+0x129/0x890 [ 27.850795] rtnl_newlink+0xf88/0x1830 [ 27.854701] ? __lock_acquire+0x2190/0x3f20 [ 27.859058] ? __vxlan_dev_create+0x710/0x710 [ 27.863587] ? rtnl_dellink+0x6a0/0x6a0 [ 27.867551] ? trace_hardirqs_on+0x10/0x10 [ 27.871786] ? lock_acquire+0x170/0x3f0 [ 27.875747] ? lock_downgrade+0x740/0x740 [ 27.879899] ? rtnl_dellink+0x6a0/0x6a0 [ 27.883897] rtnetlink_rcv_msg+0x3be/0xb10 [ 27.888125] ? rtnl_calcit.isra.0+0x3a0/0x3a0 [ 27.892612] ? __netlink_lookup+0x345/0x5d0 [ 27.896974] netlink_rcv_skb+0x125/0x390 [ 27.901024] ? rtnl_calcit.isra.0+0x3a0/0x3a0 [ 27.905541] ? netlink_ack+0x9a0/0x9a0 [ 27.909425] netlink_unicast+0x437/0x610 [ 27.913473] ? netlink_sendskb+0xd0/0xd0 [ 27.917520] ? __check_object_size+0x179/0x230 [ 27.922208] netlink_sendmsg+0x62e/0xb80 [ 27.926293] ? nlmsg_notify+0x170/0x170 [ 27.930273] ? security_socket_sendmsg+0x83/0xb0 [ 27.935016] ? nlmsg_notify+0x170/0x170 [ 27.939100] sock_sendmsg+0xb5/0x100 [ 27.942951] sock_no_sendpage+0xe2/0x110 [ 27.947123] ? __sk_mem_schedule+0xd0/0xd0 [ 27.951364] ? __sk_mem_schedule+0xd0/0xd0 [ 27.955638] sock_sendpage+0xdf/0x140 [ 27.959430] pipe_to_sendpage+0x226/0x2d0 [ 27.963600] ? sockfs_setattr+0x140/0x140 [ 27.967737] ? direct_splice_actor+0x160/0x160 [ 27.972312] __splice_from_pipe+0x326/0x7a0 [ 27.976662] ? direct_splice_actor+0x160/0x160 [ 27.981231] generic_splice_sendpage+0xc1/0x110 [ 27.985925] ? vmsplice_to_user+0x1b0/0x1b0 [ 27.990236] ? rw_verify_area+0xe1/0x2a0 [ 27.994308] ? vmsplice_to_user+0x1b0/0x1b0 [ 27.998652] SyS_splice+0xd59/0x1380 [ 28.002363] ? _raw_spin_unlock_irq+0x24/0x80 [ 28.006859] ? compat_SyS_vmsplice+0x150/0x150 [ 28.011718] ? do_syscall_64+0x4c/0x640 [ 28.015772] ? compat_SyS_vmsplice+0x150/0x150 [ 28.020394] do_syscall_64+0x1d5/0x640 [ 28.024351] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 28.029570] RIP: 0033:0x444dc9 [ 28.032780] RSP: 002b:00007fb3c3a712f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 [ 28.040472] RAX: ffffffffffffffda RBX: 00000000004ca458 RCX: 0000000000444dc9 [ 28.047812] RDX: 0000000000000006 RSI: 0000000000000000 RDI: 0000000000000004 [ 28.055066] RBP: 00000000004ca450 R08: 000000000004ffe2 R09: 0000000000000000 [ 28.062326] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004ca45c [ 28.069581] R13: 000000000049a004 R14: 0000006e616c7876 R15: 0000000000022000 [ 28.076877] Code: 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 11 01 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 63 08 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 09 01 00 00 48 85 ed 49 89 2c 24 74 28 e8 f4 [ 28.095956] RIP: vxlan_fdb_destroy+0xb4/0x1f0 RSP: ffff8880b3a57150 [ 28.102955] ---[ end trace 5cae9c38a5657709 ]--- [ 28.107718] Kernel panic - not syncing: Fatal exception [ 28.113930] Kernel Offset: disabled [ 28.117556] Rebooting in 86400 seconds..