Warning: Permanently added '10.128.1.83' (ECDSA) to the list of known hosts. executing program [ 75.727811][ T8415] netlink: 24 bytes leftover after parsing attributes in process `syz-executor602'. [ 75.743604][ T8415] ------------[ cut here ]------------ [ 75.764857][ T8415] refcount_t: decrement hit 0; leaking memory. [ 75.771428][ T8415] WARNING: CPU: 1 PID: 8415 at lib/refcount.c:31 refcount_warn_saturate+0xbf/0x1e0 [ 75.782074][ T8415] Modules linked in: [ 75.787323][ T8415] CPU: 1 PID: 8415 Comm: syz-executor602 Not tainted 5.12.0-rc4-next-20210326-syzkaller #0 [ 75.797968][ T8415] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.809164][ T8415] RIP: 0010:refcount_warn_saturate+0xbf/0x1e0 [ 75.815517][ T8415] Code: 1d 5b 7f e6 09 31 ff 89 de e8 7d b6 a7 fd 84 db 75 e0 e8 c4 af a7 fd 48 c7 c7 60 3e c2 89 c6 05 3b 7f e6 09 01 e8 04 00 fe 04 <0f> 0b eb c4 e8 a8 af a7 fd 0f b6 1d 2a 7f e6 09 31 ff 89 de e8 48 [ 75.835304][ T8415] RSP: 0018:ffffc90000f3efd0 EFLAGS: 00010282 [ 75.841425][ T8415] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 75.849522][ T8415] RDX: ffff8880155a1c80 RSI: ffffffff815c3fd5 RDI: fffff520001e7dec [ 75.857681][ T8415] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000 [ 75.865795][ T8415] R10: ffffffff815bd77e R11: 0000000000000000 R12: ffff8880196ae568 [ 75.873859][ T8415] R13: ffff8880196aec00 R14: ffff888024b0f000 R15: ffffffff8d675580 [ 75.881984][ T8415] FS: 0000000001322300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 75.891168][ T8415] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.897900][ T8415] CR2: 000055af52774c7f CR3: 0000000023f60000 CR4: 00000000001506e0 [ 75.906598][ T8415] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.906651][ T8415] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 75.906668][ T8415] Call Trace: [ 75.906680][ T8415] ip6gre_tunnel_uninit+0x3d7/0x440 [ 75.931359][ T8415] ? ip6erspan_tunnel_uninit+0x3f0/0x3f0 [ 75.937205][ T8415] register_netdevice+0xadf/0x1500 [ 75.942373][ T8415] ? netdev_change_features+0xb0/0xb0 [ 75.948062][ T8415] ? memset+0x20/0x40 [ 75.952089][ T8415] ip6gre_newlink_common.constprop.0+0x158/0x410 [ 75.958518][ T8415] ? skb_tunnel_info_txcheck+0x370/0x370 [ 75.964661][ T8415] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 75.971170][ T8415] ? ip6gre_tunnel_find+0x483/0x640 [ 75.976685][ T8415] ip6gre_newlink+0x275/0x7a0 [ 75.981536][ T8415] ? ip6erspan_newlink+0x790/0x790 [ 75.987310][ T8415] __rtnl_newlink+0x1062/0x1710 [ 75.992194][ T8415] ? rtnl_setlink+0x3c0/0x3c0 [ 75.997904][ T8415] ? find_held_lock+0x2d/0x110 [ 76.002717][ T8415] ? is_bpf_text_address+0xa9/0x160 [ 76.008193][ T8415] ? lock_downgrade+0x6e0/0x6e0 [ 76.013087][ T8415] ? unwind_next_frame+0xec8/0x1ce0 [ 76.018643][ T8415] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 76.024829][ T8415] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 76.030570][ T8415] ? is_bpf_text_address+0xcb/0x160 [ 76.035846][ T8415] ? kernel_text_address+0xbd/0xf0 [ 76.040999][ T8415] ? __kernel_text_address+0x9/0x30 [ 76.046272][ T8415] ? unwind_get_return_address+0x51/0x90 [ 76.051938][ T8415] ? create_prof_cpu_mask+0x20/0x20 [ 76.057235][ T8415] ? arch_stack_walk+0x93/0xe0 [ 76.062074][ T8415] ? fs_reclaim_release+0x9c/0xf0 [ 76.067191][ T8415] ? rcu_read_lock_sched_held+0x3a/0x70 [ 76.072771][ T8415] rtnl_newlink+0x64/0xa0 [ 76.077172][ T8415] ? __rtnl_newlink+0x1710/0x1710 [ 76.082220][ T8415] rtnetlink_rcv_msg+0x44e/0xad0 [ 76.087267][ T8415] ? rtnetlink_put_metrics+0x510/0x510 [ 76.092780][ T8415] netlink_rcv_skb+0x153/0x420 [ 76.097624][ T8415] ? rtnetlink_put_metrics+0x510/0x510 [ 76.103111][ T8415] ? netlink_ack+0xaa0/0xaa0 [ 76.107773][ T8415] ? netlink_deliver_tap+0x227/0xba0 [ 76.113098][ T8415] netlink_unicast+0x533/0x7d0 [ 76.117942][ T8415] ? netlink_attachskb+0x870/0x870 [ 76.123072][ T8415] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 76.130572][ T8415] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 76.138241][ T8415] ? __phys_addr_symbol+0x2c/0x70 [ 76.143302][ T8415] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 76.149388][ T8415] ? __check_object_size+0x171/0x3f0 [ 76.154830][ T8415] netlink_sendmsg+0x856/0xd90 [ 76.159627][ T8415] ? netlink_unicast+0x7d0/0x7d0 [ 76.164651][ T8415] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 76.170921][ T8415] ? netlink_unicast+0x7d0/0x7d0 [ 76.175948][ T8415] sock_sendmsg+0xcf/0x120 [ 76.180396][ T8415] ____sys_sendmsg+0x6e8/0x810 [ 76.185271][ T8415] ? kernel_sendmsg+0x50/0x50 [ 76.189971][ T8415] ? do_recvmmsg+0x6d0/0x6d0 [ 76.194654][ T8415] ? lock_chain_count+0x20/0x20 [ 76.199529][ T8415] ___sys_sendmsg+0xf3/0x170 [ 76.204215][ T8415] ? sendmsg_copy_msghdr+0x160/0x160 [ 76.209527][ T8415] ? __lock_acquire+0x16a7/0x5230 [ 76.214653][ T8415] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 76.220666][ T8415] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 76.227004][ T8415] ? __fget_light+0x215/0x280 [ 76.231707][ T8415] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 76.238051][ T8415] __sys_sendmsg+0xe5/0x1b0 [ 76.242583][ T8415] ? __sys_sendmsg_sock+0x30/0x30 [ 76.247681][ T8415] ? __context_tracking_enter+0xef/0x100 [ 76.253368][ T8415] ? syscall_enter_from_user_mode+0x27/0x70 [ 76.260632][ T8415] do_syscall_64+0x2d/0x70 [ 76.265546][ T8415] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 76.271861][ T8415] RIP: 0033:0x43f2a9 [ 76.275907][ T8415] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 00 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 [ 76.295797][ T8415] RSP: 002b:00007ffe649e0d18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 76.304352][ T8415] RAX: ffffffffffffffda RBX: 0000000000400488 RCX: 000000000043f2a9 [ 76.312370][ T8415] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 76.320965][ T8415] RBP: 0000000000403290 R08: 0000000000000070 R09: 0000000000400488 [ 76.329331][ T8415] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000403320 [ 76.337470][ T8415] R13: 0000000000000000 R14: 00000000004ad018 R15: 0000000000400488 [ 76.345574][ T8415] Kernel panic - not syncing: panic_on_warn set ... [ 76.352175][ T8415] CPU: 1 PID: 8415 Comm: syz-executor602 Not tainted 5.12.0-rc4-next-20210326-syzkaller #0 [ 76.362173][ T8415] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 76.372437][ T8415] Call Trace: [ 76.375714][ T8415] dump_stack+0x141/0x1d7 [ 76.380062][ T8415] panic+0x306/0x73d [ 76.387780][ T8415] ? __warn_printk+0xf3/0xf3 [ 76.392503][ T8415] ? __warn.cold+0x1a/0x44 [ 76.396909][ T8415] ? refcount_warn_saturate+0xbf/0x1e0 [ 76.402390][ T8415] __warn.cold+0x35/0x44 [ 76.406631][ T8415] ? refcount_warn_saturate+0xbf/0x1e0 [ 76.412221][ T8415] report_bug+0x1bd/0x210 [ 76.416556][ T8415] handle_bug+0x3c/0x60 [ 76.420704][ T8415] exc_invalid_op+0x14/0x40 [ 76.425286][ T8415] asm_exc_invalid_op+0x12/0x20 [ 76.430144][ T8415] RIP: 0010:refcount_warn_saturate+0xbf/0x1e0 [ 76.436232][ T8415] Code: 1d 5b 7f e6 09 31 ff 89 de e8 7d b6 a7 fd 84 db 75 e0 e8 c4 af a7 fd 48 c7 c7 60 3e c2 89 c6 05 3b 7f e6 09 01 e8 04 00 fe 04 <0f> 0b eb c4 e8 a8 af a7 fd 0f b6 1d 2a 7f e6 09 31 ff 89 de e8 48 [ 76.456117][ T8415] RSP: 0018:ffffc90000f3efd0 EFLAGS: 00010282 [ 76.462183][ T8415] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 76.470153][ T8415] RDX: ffff8880155a1c80 RSI: ffffffff815c3fd5 RDI: fffff520001e7dec [ 76.478124][ T8415] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000 [ 76.486092][ T8415] R10: ffffffff815bd77e R11: 0000000000000000 R12: ffff8880196ae568 [ 76.494167][ T8415] R13: ffff8880196aec00 R14: ffff888024b0f000 R15: ffffffff8d675580 [ 76.502156][ T8415] ? wake_up_klogd.part.0+0x8e/0xd0 [ 76.507370][ T8415] ? vprintk_func+0x95/0x260 [ 76.511961][ T8415] ip6gre_tunnel_uninit+0x3d7/0x440 [ 76.517164][ T8415] ? ip6erspan_tunnel_uninit+0x3f0/0x3f0 [ 76.523248][ T8415] register_netdevice+0xadf/0x1500 [ 76.528373][ T8415] ? netdev_change_features+0xb0/0xb0 [ 76.533745][ T8415] ? memset+0x20/0x40 [ 76.537739][ T8415] ip6gre_newlink_common.constprop.0+0x158/0x410 [ 76.544158][ T8415] ? skb_tunnel_info_txcheck+0x370/0x370 [ 76.549791][ T8415] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 76.556060][ T8415] ? ip6gre_tunnel_find+0x483/0x640 [ 76.561277][ T8415] ip6gre_newlink+0x275/0x7a0 [ 76.565977][ T8415] ? ip6erspan_newlink+0x790/0x790 [ 76.571167][ T8415] __rtnl_newlink+0x1062/0x1710 [ 76.576025][ T8415] ? rtnl_setlink+0x3c0/0x3c0 [ 76.580713][ T8415] ? find_held_lock+0x2d/0x110 [ 76.585472][ T8415] ? is_bpf_text_address+0xa9/0x160 [ 76.590708][ T8415] ? lock_downgrade+0x6e0/0x6e0 [ 76.595575][ T8415] ? unwind_next_frame+0xec8/0x1ce0 [ 76.600767][ T8415] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 76.606841][ T8415] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 76.612561][ T8415] ? is_bpf_text_address+0xcb/0x160 [ 76.617766][ T8415] ? kernel_text_address+0xbd/0xf0 [ 76.622893][ T8415] ? __kernel_text_address+0x9/0x30 [ 76.628116][ T8415] ? unwind_get_return_address+0x51/0x90 [ 76.633761][ T8415] ? create_prof_cpu_mask+0x20/0x20 [ 76.638959][ T8415] ? arch_stack_walk+0x93/0xe0 [ 76.643767][ T8415] ? fs_reclaim_release+0x9c/0xf0 [ 76.648816][ T8415] ? rcu_read_lock_sched_held+0x3a/0x70 [ 76.654365][ T8415] rtnl_newlink+0x64/0xa0 [ 76.659050][ T8415] ? __rtnl_newlink+0x1710/0x1710 [ 76.664083][ T8415] rtnetlink_rcv_msg+0x44e/0xad0 [ 76.669027][ T8415] ? rtnetlink_put_metrics+0x510/0x510 [ 76.674513][ T8415] netlink_rcv_skb+0x153/0x420 [ 76.679276][ T8415] ? rtnetlink_put_metrics+0x510/0x510 [ 76.684754][ T8415] ? netlink_ack+0xaa0/0xaa0 [ 76.689338][ T8415] ? netlink_deliver_tap+0x227/0xba0 [ 76.694642][ T8415] netlink_unicast+0x533/0x7d0 [ 76.699407][ T8415] ? netlink_attachskb+0x870/0x870 [ 76.705158][ T8415] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 76.711425][ T8415] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 76.717767][ T8415] ? __phys_addr_symbol+0x2c/0x70 [ 76.723057][ T8415] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 76.728797][ T8415] ? __check_object_size+0x171/0x3f0 [ 76.734086][ T8415] netlink_sendmsg+0x856/0xd90 [ 76.738851][ T8415] ? netlink_unicast+0x7d0/0x7d0 [ 76.743791][ T8415] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 76.750055][ T8415] ? netlink_unicast+0x7d0/0x7d0 [ 76.754995][ T8415] sock_sendmsg+0xcf/0x120 [ 76.759437][ T8415] ____sys_sendmsg+0x6e8/0x810 [ 76.764230][ T8415] ? kernel_sendmsg+0x50/0x50 [ 76.768935][ T8415] ? do_recvmmsg+0x6d0/0x6d0 [ 76.773548][ T8415] ? lock_chain_count+0x20/0x20 [ 76.778399][ T8415] ___sys_sendmsg+0xf3/0x170 [ 76.782986][ T8415] ? sendmsg_copy_msghdr+0x160/0x160 [ 76.788276][ T8415] ? __lock_acquire+0x16a7/0x5230 [ 76.793301][ T8415] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 76.799308][ T8415] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 76.805926][ T8415] ? __fget_light+0x215/0x280 [ 76.810608][ T8415] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 76.816955][ T8415] __sys_sendmsg+0xe5/0x1b0 [ 76.821513][ T8415] ? __sys_sendmsg_sock+0x30/0x30 [ 76.826556][ T8415] ? __context_tracking_enter+0xef/0x100 [ 76.832222][ T8415] ? syscall_enter_from_user_mode+0x27/0x70 [ 76.838237][ T8415] do_syscall_64+0x2d/0x70 [ 76.842755][ T8415] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 76.849007][ T8415] RIP: 0033:0x43f2a9 [ 76.852907][ T8415] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 00 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 [ 76.872508][ T8415] RSP: 002b:00007ffe649e0d18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 76.880936][ T8415] RAX: ffffffffffffffda RBX: 0000000000400488 RCX: 000000000043f2a9 [ 76.888904][ T8415] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 76.896895][ T8415] RBP: 0000000000403290 R08: 0000000000000070 R09: 0000000000400488 [ 76.904859][ T8415] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000403320 [ 76.912912][ T8415] R13: 0000000000000000 R14: 00000000004ad018 R15: 0000000000400488 [ 76.922189][ T8415] Kernel Offset: disabled [ 76.926584][ T8415] Rebooting in 86400 seconds..