Warning: Permanently added '10.128.0.253' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 33.135494] IPVS: ftp: loaded support on port[0] = 21 [ 33.169910] netlink: 'syz-executor267': attribute type 5 has an invalid length. [ 33.177743] netlink: 216 bytes leftover after parsing attributes in process `syz-executor267'. [ 33.242853] kasan: CONFIG_KASAN_INLINE enabled [ 33.247765] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 33.256256] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 33.262904] CPU: 1 PID: 8144 Comm: syz-executor267 Not tainted 4.19.206-syzkaller #0 [ 33.270900] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.280351] RIP: 0010:vxlan_fdb_destroy+0xbe/0x1f0 [ 33.285269] Code: 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 4a 1b [ 33.304328] RSP: 0018:ffff888095876d90 EFLAGS: 00010a02 [ 33.309679] RAX: dffffc0000000000 RBX: ffff88809ddef280 RCX: ffffffff844f76fe [ 33.317030] RDX: 1bd5a00000000040 RSI: ffffffff844f770c RDI: ffff88809ddef288 [ 33.324309] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 33.331648] R10: 0000000000000001 R11: 0000000000000000 R12: dead000000000200 [ 33.338915] R13: 0000000000000000 R14: ffff888095876eb0 R15: ffff888095abcbc0 [ 33.346169] FS: 00007f16ddfb1700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 33.354414] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 33.360718] CR2: 0000000020000180 CR3: 00000000aba6b000 CR4: 00000000001406e0 [ 33.367972] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 33.375241] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 33.382500] Call Trace: [ 33.385078] __vxlan_dev_create+0x477/0x820 [ 33.389470] ? vxlan_fdb_add+0x340/0x340 [ 33.393541] ? vxlan_setup+0x400/0x400 [ 33.397413] ? __kmalloc_node+0x38/0x70 [ 33.401464] vxlan_newlink+0xc0/0x120 [ 33.405251] ? __vxlan_dev_create+0x820/0x820 [ 33.409735] ? memset+0x20/0x40 [ 33.413034] ? rtnl_create_link+0x145/0xa40 [ 33.417429] ? __vxlan_dev_create+0x820/0x820 [ 33.421912] rtnl_newlink+0x1030/0x15c0 [ 33.425876] ? rtnl_getlink+0x620/0x620 [ 33.429842] ? unwind_next_frame+0xeee/0x1400 [ 33.434327] ? __save_stack_trace+0x72/0x190 [ 33.438730] ? deref_stack_reg+0x134/0x1d0 [ 33.442955] ? deref_stack_reg+0x1d0/0x1d0 [ 33.447270] ? unwind_next_frame+0xeee/0x1400 [ 33.451762] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 33.457118] ? lock_downgrade+0x720/0x720 [ 33.461344] ? deref_stack_reg+0x1d0/0x1d0 [ 33.465653] ? __unwind_start+0x5b8/0x960 [ 33.469876] ? is_bpf_text_address+0xfc/0x1b0 [ 33.474361] ? kernel_text_address+0xbd/0xf0 [ 33.478761] ? __kernel_text_address+0x9/0x30 [ 33.483243] ? unwind_get_return_address+0x51/0x90 [ 33.488179] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 33.493527] ? __save_stack_trace+0xaf/0x190 [ 33.497931] ? __lock_acquire+0x6de/0x3ff0 [ 33.502171] ? mark_held_locks+0xf0/0xf0 [ 33.506304] ? get_reg+0x1f0/0x1f0 [ 33.509853] ? mutex_trylock+0x1a0/0x1a0 [ 33.513905] ? rtnetlink_rcv_msg+0x3c3/0xb80 [ 33.518302] ? rtnl_getlink+0x620/0x620 [ 33.522305] rtnetlink_rcv_msg+0x453/0xb80 [ 33.526533] ? rtnl_calcit.isra.0+0x430/0x430 [ 33.531015] ? __netlink_lookup+0x3fc/0x730 [ 33.535775] ? lock_downgrade+0x720/0x720 [ 33.539914] ? check_preemption_disabled+0x41/0x280 [ 33.544920] netlink_rcv_skb+0x160/0x440 [ 33.548971] ? rtnl_calcit.isra.0+0x430/0x430 [ 33.553453] ? netlink_ack+0xae0/0xae0 [ 33.557332] netlink_unicast+0x4d5/0x690 [ 33.561384] ? netlink_sendskb+0x110/0x110 [ 33.565606] ? _copy_from_iter_full+0x229/0x7c0 [ 33.570264] ? __phys_addr_symbol+0x2c/0x70 [ 33.574575] ? __check_object_size+0x17b/0x3e0 [ 33.579324] netlink_sendmsg+0x6bb/0xc40 [ 33.583549] ? aa_af_perm+0x230/0x230 [ 33.587442] ? nlmsg_notify+0x1a0/0x1a0 [ 33.591509] ? nlmsg_notify+0x1a0/0x1a0 [ 33.595571] sock_sendmsg+0xc3/0x120 [ 33.599367] sock_no_sendpage+0xf5/0x140 [ 33.603433] ? __sk_mem_schedule+0xd0/0xd0 [ 33.607670] ? pipe_lock+0x63/0x80 [ 33.611210] ? __sk_mem_schedule+0xd0/0xd0 [ 33.615478] sock_sendpage+0xdf/0x140 [ 33.619270] pipe_to_sendpage+0x268/0x330 [ 33.623407] ? sockfs_setattr+0x160/0x160 [ 33.627622] ? direct_splice_actor+0x160/0x160 [ 33.632206] ? splice_from_pipe_next.part.0+0x2ad/0x360 [ 33.637556] __splice_from_pipe+0x389/0x800 [ 33.641884] ? direct_splice_actor+0x160/0x160 [ 33.646472] generic_splice_sendpage+0xd4/0x140 [ 33.651130] ? __splice_from_pipe+0x800/0x800 [ 33.655613] ? security_file_permission+0x1c0/0x220 [ 33.660616] ? __splice_from_pipe+0x800/0x800 [ 33.665097] __se_sys_splice+0xfe7/0x16d0 [ 33.669343] ? lock_acquire+0x170/0x3c0 [ 33.673327] ? ret_from_fork+0x8/0x30 [ 33.677235] ? __se_sys_tee+0xb90/0xb90 [ 33.681403] ? trace_hardirqs_off_caller+0x6e/0x210 [ 33.686497] ? do_syscall_64+0x21/0x620 [ 33.690458] do_syscall_64+0xf9/0x620 [ 33.694249] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 33.699427] RIP: 0033:0x445679 [ 33.702605] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 33.721493] RSP: 002b:00007f16ddfb12e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 [ 33.729192] RAX: ffffffffffffffda RBX: 00000000004ca450 RCX: 0000000000445679 [ 33.736460] RDX: 0000000000000006 RSI: 0000000000000000 RDI: 0000000000000004 [ 33.743719] RBP: 000000000049a120 R08: 000000000004fff1 R09: 0000000000000000 [ 33.750988] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000049a008 [ 33.758259] R13: 0000006e616c7876 R14: 7277682f7665642f R15: 00000000004ca458 [ 33.765524] Modules linked in: [ 33.770543] ---[ end trace 6c3fefeaa968681b ]--- [ 33.775553] RIP: 0010:vxlan_fdb_destroy+0xbe/0x1f0 [ 33.780497] Code: 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 4a 1b [ 33.799509] RSP: 0018:ffff888095876d90 EFLAGS: 00010a02 [ 33.805095] RAX: dffffc0000000000 RBX: ffff88809ddef280 RCX: ffffffff844f76fe [ 33.812355] RDX: 1bd5a00000000040 RSI: ffffffff844f770c RDI: ffff88809ddef288 [ 33.819798] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 33.827125] R10: 0000000000000001 R11: 0000000000000000 R12: dead000000000200 [ 33.834461] R13: 0000000000000000 R14: ffff888095876eb0 R15: ffff888095abcbc0 [ 33.841732] FS: 00007f16ddfb1700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 33.850078] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 33.856000] CR2: 00000000004d0600 CR3: 00000000aba6b000 CR4: 00000000001406f0 [ 33.863259] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 33.870605] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 33.877933] Kernel panic - not syncing: Fatal exception [ 33.884827] Kernel Offset: disabled [ 33.888484] Rebooting in 86400 seconds..