Warning: Permanently added '10.128.0.8' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 73.692840][ T8384] netlink: 8 bytes leftover after parsing attributes in process `syz-executor057'. [ 73.716477][ T8390] netlink: 8 bytes leftover after parsing attributes in process `syz-executor057'. [ 73.726309][ T8390] ------------[ cut here ]------------ [ 73.733586][ T8390] refcount_t: decrement hit 0; leaking memory. [ 73.741195][ T8390] WARNING: CPU: 1 PID: 8390 at lib/refcount.c:31 refcount_warn_saturate+0xbf/0x1e0 [ 73.751070][ T8390] Modules linked in: [ 73.755021][ T8390] CPU: 0 PID: 8390 Comm: syz-executor057 Not tainted 5.12.0-rc4-syzkaller #0 [ 73.764482][ T8390] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.774988][ T8390] RIP: 0010:refcount_warn_saturate+0xbf/0x1e0 [ 73.781338][ T8390] Code: 1d 6a 5a e8 09 31 ff 89 de e8 8d 1a ab fd 84 db 75 e0 e8 d4 13 ab fd 48 c7 c7 a0 e1 c1 89 c6 05 4a 5a e8 09 01 e8 2e 36 fb 04 <0f> 0b eb c4 e8 b8 13 ab fd 0f b6 1d 39 5a e8 09 31 ff 89 de e8 58 [ 73.801272][ T8390] RSP: 0018:ffffc9000160efe8 EFLAGS: 00010282 [ 73.807364][ T8390] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 73.816074][ T8390] RDX: ffff88801fa33880 RSI: ffffffff815c51f5 RDI: fffff520002c1def [ 73.824159][ T8390] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000 [ 73.832312][ T8390] R10: ffffffff815bdf8e R11: 0000000000000000 R12: ffff888018290568 [ 73.840356][ T8390] R13: ffff888147ac7800 R14: 00000000ffffffff R15: ffffffff8d659b80 [ 73.848341][ T8390] FS: 0000000001244300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 73.857325][ T8390] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.863980][ T8390] CR2: 0000558abbb67188 CR3: 0000000012a88000 CR4: 00000000001506f0 [ 73.872222][ T8390] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.880335][ T8390] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.888314][ T8390] Call Trace: [ 73.891658][ T8390] ip6_tnl_dev_uninit+0x370/0x3d0 [ 73.896699][ T8390] ? ip6_tnl_update+0x7d0/0x7d0 [ 73.901629][ T8390] register_netdevice+0xadf/0x1500 [ 73.906807][ T8390] ? netdev_change_features+0xb0/0xb0 [ 73.912683][ T8390] ip6_tnl_create2+0x1b5/0x400 [ 73.917465][ T8390] ip6_tnl_newlink+0x312/0x580 [ 73.922331][ T8390] ? ip6_tnl_changelink+0x4a0/0x4a0 [ 73.927543][ T8390] ? rtnl_create_link+0x746/0xae0 [ 73.932930][ T8390] ? ip6_tnl_changelink+0x4a0/0x4a0 [ 73.938175][ T8390] __rtnl_newlink+0x1062/0x1710 [ 73.943144][ T8390] ? rtnl_setlink+0x3c0/0x3c0 [ 73.947857][ T8390] ? find_held_lock+0x2d/0x110 [ 73.952684][ T8390] ? is_bpf_text_address+0xa9/0x160 [ 73.957893][ T8390] ? lock_downgrade+0x6e0/0x6e0 [ 73.962812][ T8390] ? unwind_next_frame+0xec8/0x1ce0 [ 73.968027][ T8390] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 73.974172][ T8390] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 73.979976][ T8390] ? is_bpf_text_address+0xcb/0x160 [ 73.985190][ T8390] ? kernel_text_address+0xbd/0xf0 [ 73.990363][ T8390] ? __kernel_text_address+0x9/0x30 [ 73.995585][ T8390] ? unwind_get_return_address+0x51/0x90 [ 74.001313][ T8390] ? create_prof_cpu_mask+0x20/0x20 [ 74.006532][ T8390] ? arch_stack_walk+0x93/0xe0 [ 74.011431][ T8390] ? fs_reclaim_release+0x9c/0xe0 [ 74.016483][ T8390] ? rcu_read_lock_sched_held+0x3a/0x70 [ 74.022109][ T8390] rtnl_newlink+0x64/0xa0 [ 74.026463][ T8390] ? __rtnl_newlink+0x1710/0x1710 [ 74.031629][ T8390] rtnetlink_rcv_msg+0x44e/0xad0 [ 74.036601][ T8390] ? rtnetlink_put_metrics+0x510/0x510 [ 74.042378][ T8390] netlink_rcv_skb+0x153/0x420 [ 74.047167][ T8390] ? rtnetlink_put_metrics+0x510/0x510 [ 74.052711][ T8390] ? netlink_ack+0xaa0/0xaa0 [ 74.057330][ T8390] ? netlink_deliver_tap+0x227/0xba0 [ 74.062920][ T8390] netlink_unicast+0x533/0x7d0 [ 74.067709][ T8390] ? netlink_attachskb+0x870/0x870 [ 74.072896][ T8390] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 74.079255][ T8390] ? __phys_addr_symbol+0x2c/0x70 [ 74.084338][ T8390] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 74.090160][ T8390] ? __check_object_size+0x171/0x3f0 [ 74.095472][ T8390] netlink_sendmsg+0x856/0xd90 [ 74.100297][ T8390] ? netlink_unicast+0x7d0/0x7d0 [ 74.105270][ T8390] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 74.111569][ T8390] ? netlink_unicast+0x7d0/0x7d0 [ 74.116527][ T8390] sock_sendmsg+0xcf/0x120 [ 74.121266][ T8390] ____sys_sendmsg+0x6e8/0x810 [ 74.126108][ T8390] ? kernel_sendmsg+0x50/0x50 [ 74.130890][ T8390] ? do_recvmmsg+0x6d0/0x6d0 [ 74.135532][ T8390] ? lock_chain_count+0x20/0x20 [ 74.140479][ T8390] ___sys_sendmsg+0xf3/0x170 [ 74.145081][ T8390] ? sendmsg_copy_msghdr+0x160/0x160 [ 74.150444][ T8390] ? __lock_acquire+0x16b3/0x54c0 [ 74.155847][ T8390] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 74.161917][ T8390] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 74.168182][ T8390] ? __fget_light+0x215/0x280 [ 74.173145][ T8390] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 74.179418][ T8390] __sys_sendmsg+0xe5/0x1b0 [ 74.184005][ T8390] ? __sys_sendmsg_sock+0x30/0x30 [ 74.189068][ T8390] ? syscall_enter_from_user_mode+0x27/0x70 [ 74.195238][ T8390] do_syscall_64+0x2d/0x70 [ 74.199782][ T8390] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 74.205698][ T8390] RIP: 0033:0x43fd19 [ 74.209667][ T8390] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 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 c0 ff ff ff f7 d8 64 89 01 48 [ 74.229384][ T8390] RSP: 002b:00007ffe21e4b8a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 74.238047][ T8390] RAX: ffffffffffffffda RBX: 0000000000011fde RCX: 000000000043fd19 [ 74.246117][ T8390] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 74.254145][ T8390] RBP: 0000000000000000 R08: 00007ffe21e4ba48 R09: 00007ffe21e4ba48 [ 74.262188][ T8390] R10: 00007ffe21e4ba48 R11: 0000000000000246 R12: 00007ffe21e4b8bc [ 74.270243][ T8390] R13: 431bde82d7b634db R14: 00000000004ae018 R15: 0000000000400488 [ 74.278247][ T8390] Kernel panic - not syncing: panic_on_warn set ... [ 74.284820][ T8390] CPU: 0 PID: 8390 Comm: syz-executor057 Not tainted 5.12.0-rc4-syzkaller #0 [ 74.293614][ T8390] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.303660][ T8390] Call Trace: [ 74.306951][ T8390] dump_stack+0x141/0x1d7 [ 74.311277][ T8390] panic+0x306/0x73d [ 74.315421][ T8390] ? __warn_printk+0xf3/0xf3 [ 74.320005][ T8390] ? __warn.cold+0x1a/0x44 [ 74.324414][ T8390] ? refcount_warn_saturate+0xbf/0x1e0 [ 74.329885][ T8390] __warn.cold+0x35/0x44 [ 74.334123][ T8390] ? wake_up_klogd.part.0+0x8e/0xd0 [ 74.339316][ T8390] ? refcount_warn_saturate+0xbf/0x1e0 [ 74.344768][ T8390] report_bug+0x1bd/0x210 [ 74.349090][ T8390] handle_bug+0x3c/0x60 [ 74.353236][ T8390] exc_invalid_op+0x14/0x40 [ 74.357736][ T8390] asm_exc_invalid_op+0x12/0x20 [ 74.362580][ T8390] RIP: 0010:refcount_warn_saturate+0xbf/0x1e0 [ 74.368653][ T8390] Code: 1d 6a 5a e8 09 31 ff 89 de e8 8d 1a ab fd 84 db 75 e0 e8 d4 13 ab fd 48 c7 c7 a0 e1 c1 89 c6 05 4a 5a e8 09 01 e8 2e 36 fb 04 <0f> 0b eb c4 e8 b8 13 ab fd 0f b6 1d 39 5a e8 09 31 ff 89 de e8 58 [ 74.388252][ T8390] RSP: 0018:ffffc9000160efe8 EFLAGS: 00010282 [ 74.394308][ T8390] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 74.402268][ T8390] RDX: ffff88801fa33880 RSI: ffffffff815c51f5 RDI: fffff520002c1def [ 74.410932][ T8390] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000 [ 74.418978][ T8390] R10: ffffffff815bdf8e R11: 0000000000000000 R12: ffff888018290568 [ 74.426935][ T8390] R13: ffff888147ac7800 R14: 00000000ffffffff R15: ffffffff8d659b80 [ 74.434933][ T8390] ? wake_up_klogd.part.0+0x8e/0xd0 [ 74.440147][ T8390] ? vprintk_func+0x95/0x1e0 [ 74.444748][ T8390] ? refcount_warn_saturate+0xbf/0x1e0 [ 74.450214][ T8390] ip6_tnl_dev_uninit+0x370/0x3d0 [ 74.455256][ T8390] ? ip6_tnl_update+0x7d0/0x7d0 [ 74.460095][ T8390] register_netdevice+0xadf/0x1500 [ 74.465204][ T8390] ? netdev_change_features+0xb0/0xb0 [ 74.470578][ T8390] ip6_tnl_create2+0x1b5/0x400 [ 74.475331][ T8390] ip6_tnl_newlink+0x312/0x580 [ 74.480082][ T8390] ? ip6_tnl_changelink+0x4a0/0x4a0 [ 74.485268][ T8390] ? rtnl_create_link+0x746/0xae0 [ 74.490285][ T8390] ? ip6_tnl_changelink+0x4a0/0x4a0 [ 74.495503][ T8390] __rtnl_newlink+0x1062/0x1710 [ 74.500356][ T8390] ? rtnl_setlink+0x3c0/0x3c0 [ 74.505024][ T8390] ? find_held_lock+0x2d/0x110 [ 74.509801][ T8390] ? is_bpf_text_address+0xa9/0x160 [ 74.514987][ T8390] ? lock_downgrade+0x6e0/0x6e0 [ 74.519836][ T8390] ? unwind_next_frame+0xec8/0x1ce0 [ 74.525050][ T8390] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 74.531109][ T8390] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 74.536841][ T8390] ? is_bpf_text_address+0xcb/0x160 [ 74.542044][ T8390] ? kernel_text_address+0xbd/0xf0 [ 74.547164][ T8390] ? __kernel_text_address+0x9/0x30 [ 74.552367][ T8390] ? unwind_get_return_address+0x51/0x90 [ 74.558004][ T8390] ? create_prof_cpu_mask+0x20/0x20 [ 74.563195][ T8390] ? arch_stack_walk+0x93/0xe0 [ 74.567984][ T8390] ? fs_reclaim_release+0x9c/0xe0 [ 74.573006][ T8390] ? rcu_read_lock_sched_held+0x3a/0x70 [ 74.578543][ T8390] rtnl_newlink+0x64/0xa0 [ 74.582893][ T8390] ? __rtnl_newlink+0x1710/0x1710 [ 74.588083][ T8390] rtnetlink_rcv_msg+0x44e/0xad0 [ 74.593018][ T8390] ? rtnetlink_put_metrics+0x510/0x510 [ 74.598494][ T8390] netlink_rcv_skb+0x153/0x420 [ 74.603251][ T8390] ? rtnetlink_put_metrics+0x510/0x510 [ 74.608701][ T8390] ? netlink_ack+0xaa0/0xaa0 [ 74.613397][ T8390] ? netlink_deliver_tap+0x227/0xba0 [ 74.618679][ T8390] netlink_unicast+0x533/0x7d0 [ 74.623433][ T8390] ? netlink_attachskb+0x870/0x870 [ 74.628528][ T8390] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 74.634765][ T8390] ? __phys_addr_symbol+0x2c/0x70 [ 74.639780][ T8390] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 74.645485][ T8390] ? __check_object_size+0x171/0x3f0 [ 74.650758][ T8390] netlink_sendmsg+0x856/0xd90 [ 74.655511][ T8390] ? netlink_unicast+0x7d0/0x7d0 [ 74.660437][ T8390] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 74.666664][ T8390] ? netlink_unicast+0x7d0/0x7d0 [ 74.671600][ T8390] sock_sendmsg+0xcf/0x120 [ 74.676009][ T8390] ____sys_sendmsg+0x6e8/0x810 [ 74.680763][ T8390] ? kernel_sendmsg+0x50/0x50 [ 74.685426][ T8390] ? do_recvmmsg+0x6d0/0x6d0 [ 74.690015][ T8390] ? lock_chain_count+0x20/0x20 [ 74.694859][ T8390] ___sys_sendmsg+0xf3/0x170 [ 74.699460][ T8390] ? sendmsg_copy_msghdr+0x160/0x160 [ 74.704742][ T8390] ? __lock_acquire+0x16b3/0x54c0 [ 74.709759][ T8390] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 74.715730][ T8390] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 74.721957][ T8390] ? __fget_light+0x215/0x280 [ 74.726639][ T8390] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 74.732869][ T8390] __sys_sendmsg+0xe5/0x1b0 [ 74.737358][ T8390] ? __sys_sendmsg_sock+0x30/0x30 [ 74.742374][ T8390] ? syscall_enter_from_user_mode+0x27/0x70 [ 74.748259][ T8390] do_syscall_64+0x2d/0x70 [ 74.752662][ T8390] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 74.758544][ T8390] RIP: 0033:0x43fd19 [ 74.762439][ T8390] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 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 c0 ff ff ff f7 d8 64 89 01 48 [ 74.782043][ T8390] RSP: 002b:00007ffe21e4b8a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 74.790445][ T8390] RAX: ffffffffffffffda RBX: 0000000000011fde RCX: 000000000043fd19 [ 74.798400][ T8390] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 74.806354][ T8390] RBP: 0000000000000000 R08: 00007ffe21e4ba48 R09: 00007ffe21e4ba48 [ 74.814307][ T8390] R10: 00007ffe21e4ba48 R11: 0000000000000246 R12: 00007ffe21e4b8bc [ 74.822262][ T8390] R13: 431bde82d7b634db R14: 00000000004ae018 R15: 0000000000400488 [ 74.831090][ T8390] Kernel Offset: disabled [ 74.835507][ T8390] Rebooting in 86400 seconds..