Warning: Permanently added '10.128.0.115' (ECDSA) to the list of known hosts. executing program [ 34.143371] audit: type=1400 audit(1587458138.451:8): avc: denied { execmem } for pid=6334 comm="syz-executor673" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 34.251615] kasan: CONFIG_KASAN_INLINE enabled [ 34.256489] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 34.264897] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 34.271145] Modules linked in: [ 34.274321] CPU: 0 PID: 6353 Comm: syz-executor673 Not tainted 4.14.176-syzkaller #0 [ 34.282192] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.291543] task: ffff8880974b6400 task.stack: ffff888097850000 [ 34.297608] RIP: 0010:vxlan_fdb_destroy+0xa3/0x1b0 [ 34.302512] RSP: 0018:ffff888097857128 EFLAGS: 00010a02 [ 34.307854] RAX: dffffc0000000000 RBX: ffff8880974d2500 RCX: 1ffff11012f0ae1b [ 34.315106] RDX: 1bd5a00000000040 RSI: ffff8880974d2500 RDI: ffff8880985852c0 [ 34.322394] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 [ 34.329694] R10: 0000000000000000 R11: 0000000000000000 R12: dead000000000200 [ 34.336945] R13: ffff8880974d2508 R14: ffff888097857228 R15: ffff888098585180 [ 34.344775] FS: 00007fd228e08700(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000 [ 34.352990] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 34.358890] CR2: 00007ff83914b000 CR3: 000000008dacc000 CR4: 00000000001406f0 [ 34.366186] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 34.373445] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 34.380704] Call Trace: [ 34.383284] __vxlan_dev_create+0x3bc/0x710 [ 34.387590] ? vxlan_nl2conf+0x1137/0x22a0 [ 34.391841] ? vxlan_changelink+0x660/0x660 [ 34.396262] ? vxlan_setup+0x4a0/0x4a0 [ 34.400137] ? kasan_unpoison_shadow+0x30/0x40 [ 34.404717] ? kasan_kmalloc+0xbf/0xe0 [ 34.408603] vxlan_newlink+0xa3/0xe0 [ 34.412326] ? __vxlan_dev_create+0x710/0x710 [ 34.416837] ? kvmalloc_node+0x4e/0xd0 [ 34.420731] ? rtnl_create_link+0x129/0x880 [ 34.425044] rtnl_newlink+0xecb/0x1720 [ 34.428986] ? __vxlan_dev_create+0x710/0x710 [ 34.433476] ? rtnl_link_unregister+0x1f0/0x1f0 [ 34.438166] ? lock_acquire+0x170/0x3f0 [ 34.442190] ? lock_acquire+0x170/0x3f0 [ 34.446170] ? __lock_is_held+0xad/0x140 [ 34.450385] ? lock_downgrade+0x6e0/0x6e0 [ 34.454578] ? rtnl_link_unregister+0x1f0/0x1f0 [ 34.459336] rtnetlink_rcv_msg+0x3be/0xb10 [ 34.463683] ? rtnl_bridge_getlink+0x7a0/0x7a0 [ 34.468248] ? save_trace+0x290/0x290 [ 34.472038] ? save_trace+0x290/0x290 [ 34.475908] netlink_rcv_skb+0x127/0x370 [ 34.480076] ? rtnl_bridge_getlink+0x7a0/0x7a0 [ 34.484652] ? netlink_ack+0x980/0x980 [ 34.488582] netlink_unicast+0x437/0x620 [ 34.492646] ? netlink_attachskb+0x600/0x600 [ 34.497242] netlink_sendmsg+0x733/0xbe0 [ 34.501288] ? netlink_unicast+0x620/0x620 [ 34.505506] ? __lock_is_held+0xad/0x140 [ 34.509555] ? security_socket_sendmsg+0x83/0xb0 [ 34.514325] ? netlink_unicast+0x620/0x620 [ 34.518588] sock_sendmsg+0xc5/0x100 [ 34.522296] sock_no_sendpage+0xe5/0x110 [ 34.526359] ? sock_kzfree_s+0x50/0x50 [ 34.530232] ? sock_kzfree_s+0x50/0x50 [ 34.534100] kernel_sendpage+0x82/0xd0 [ 34.538040] sock_sendpage+0x84/0xa0 [ 34.541755] pipe_to_sendpage+0x226/0x2d0 [ 34.545919] ? kernel_sendpage+0xd0/0xd0 [ 34.549975] ? direct_splice_actor+0x160/0x160 [ 34.554551] ? splice_from_pipe_next.part.0+0x1e4/0x290 [ 34.559932] __splice_from_pipe+0x332/0x740 [ 34.564283] ? direct_splice_actor+0x160/0x160 [ 34.568864] ? direct_splice_actor+0x160/0x160 [ 34.573548] splice_from_pipe+0xc6/0x120 [ 34.577730] ? splice_shrink_spd+0xb0/0xb0 [ 34.581994] ? rw_verify_area+0xe1/0x2a0 [ 34.586186] ? splice_from_pipe+0x120/0x120 [ 34.590492] SyS_splice+0xca0/0x1230 [ 34.594195] ? finish_task_switch+0x3d6/0x620 [ 34.598830] ? compat_SyS_vmsplice+0x250/0x250 [ 34.603406] ? do_syscall_64+0x4c/0x640 [ 34.607363] ? compat_SyS_vmsplice+0x250/0x250 [ 34.611991] do_syscall_64+0x1d5/0x640 [ 34.615866] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 34.621039] RIP: 0033:0x44a359 [ 34.624324] RSP: 002b:00007fd228e07cd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 [ 34.632022] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 000000000044a359 [ 34.639291] RDX: 0000000000000006 RSI: 0000000000000000 RDI: 0000000000000004 [ 34.646584] RBP: 00000000006dbc50 R08: 000000000004ffe2 R09: 0000000000000000 [ 34.653953] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc5c [ 34.661202] R13: 00007ffe1a5486ff R14: 00007fd228e089c0 R15: 20c49ba5e353f7cf [ 34.668480] Code: 00 00 fc ff df 4c 89 ea 48 c1 ea 03 80 3c 02 00 0f 85 fe 00 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 d2 00 00 00 48 85 ed 49 89 2c 24 74 28 e8 95 [ 34.687575] RIP: vxlan_fdb_destroy+0xa3/0x1b0 RSP: ffff888097857128 [ 34.694970] ---[ end trace 01843a3e5f689b87 ]--- [ 34.699753] Kernel panic - not syncing: Fatal exception [ 34.706607] Kernel Offset: disabled [ 34.710316] Rebooting in 86400 seconds..