[ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 43.628742][ T7027] IPVS: ftp: loaded support on port[0] = 21 [ 43.997575][ T21] tipc: TX() has been purged, node left! [ 45.157358][ T7010] can: request_module (can-proto-0) failed. [ 45.615286][ T7010] can: request_module (can-proto-0) failed. [ 45.628016][ T7010] can: request_module (can-proto-0) failed. Warning: Permanently added '10.128.1.11' (ECDSA) to the list of known hosts. 2020/04/15 05:15:14 parsed 1 programs 2020/04/15 05:15:15 executed programs: 0 [ 54.154816][ T7156] IPVS: ftp: loaded support on port[0] = 21 [ 54.197454][ T7154] IPVS: ftp: loaded support on port[0] = 21 [ 54.214234][ T7155] IPVS: ftp: loaded support on port[0] = 21 [ 54.238838][ T7165] IPVS: ftp: loaded support on port[0] = 21 [ 54.243074][ T7159] IPVS: ftp: loaded support on port[0] = 21 [ 54.262996][ T7162] IPVS: ftp: loaded support on port[0] = 21 [ 54.386104][ T7156] chnl_net:caif_netlink_parms(): no params data found [ 54.560633][ T7154] chnl_net:caif_netlink_parms(): no params data found [ 54.632063][ T7162] chnl_net:caif_netlink_parms(): no params data found [ 54.673654][ T7156] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.683173][ T7156] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.692082][ T7156] device bridge_slave_0 entered promiscuous mode [ 54.741435][ T7156] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.749530][ T7156] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.758003][ T7156] device bridge_slave_1 entered promiscuous mode [ 54.782672][ T7165] chnl_net:caif_netlink_parms(): no params data found [ 54.818924][ T7155] chnl_net:caif_netlink_parms(): no params data found [ 54.851163][ T7156] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.878629][ T7159] chnl_net:caif_netlink_parms(): no params data found [ 54.899089][ T7156] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.962374][ T7162] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.972374][ T7162] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.982361][ T7162] device bridge_slave_0 entered promiscuous mode [ 54.995475][ T7154] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.002551][ T7154] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.015542][ T7154] device bridge_slave_0 entered promiscuous mode [ 55.028808][ T7156] ------------[ cut here ]------------ [ 55.034650][ T7156] DEBUG_LOCKS_WARN_ON(lock->magic != lock) [ 55.034734][ T7156] WARNING: CPU: 1 PID: 7156 at kernel/locking/mutex.c:938 __mutex_lock_common+0x1ef3/0x2fc0 [ 55.050805][ T7156] Kernel panic - not syncing: panic_on_warn set ... [ 55.057499][ T7156] CPU: 1 PID: 7156 Comm: syz-executor.5 Not tainted 5.6.0-syzkaller #0 [ 55.065717][ T7156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.075754][ T7156] Call Trace: [ 55.079071][ T7156] dump_stack+0x1e9/0x30e [ 55.083409][ T7156] panic+0x264/0x7a0 [ 55.087296][ T7156] ? __warn+0x102/0x210 [ 55.091430][ T7156] ? __mutex_lock_common+0x1ef3/0x2fc0 [ 55.097421][ T7156] __warn+0x209/0x210 [ 55.101444][ T7156] ? __mutex_lock_common+0x1ef3/0x2fc0 [ 55.106963][ T7156] report_bug+0x1ac/0x2d0 [ 55.111282][ T7156] do_error_trap+0xca/0x1c0 [ 55.115771][ T7156] do_invalid_op+0x32/0x40 [ 55.120849][ T7156] ? __mutex_lock_common+0x1ef3/0x2fc0 [ 55.126304][ T7156] invalid_op+0x23/0x30 [ 55.130442][ T7156] RIP: 0010:__mutex_lock_common+0x1ef3/0x2fc0 [ 55.136485][ T7156] Code: 84 c0 0f 85 0b 0e 00 00 83 3d dc 3c 60 01 00 0f 85 d7 e1 ff ff 48 c7 c7 a9 43 e5 88 48 c7 c6 06 cf e6 88 31 c0 e8 2d 86 3c f9 <0f> 0b e9 bb e1 ff ff 4c 8d 75 08 4c 89 f7 e8 1a 71 00 00 48 c7 c0 [ 55.156789][ T7156] RSP: 0018:ffffc900018770e8 EFLAGS: 00010246 [ 55.162860][ T7156] RAX: f5d8661d46ec2b00 RBX: ffff88808efe6000 RCX: ffff888099b60080 [ 55.170845][ T7156] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000282 [ 55.178805][ T7156] RBP: 0000000000000000 R08: ffffffff817b9a70 R09: fffffbfff125c9c1 [ 55.186758][ T7156] R10: fffffbfff125c9c1 R11: 0000000000000000 R12: 0000000000000000 [ 55.194706][ T7156] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888098924000 [ 55.202664][ T7156] ? trace_hardirqs_on+0x30/0x70 [ 55.207603][ T7156] ? __mutex_lock_common+0x1ef3/0x2fc0 [ 55.213053][ T7156] ? is_bpf_text_address+0x27b/0x290 [ 55.218323][ T7156] ? stack_trace_save+0x150/0x150 [ 55.223342][ T7156] ? unwind_get_return_address+0x48/0x90 [ 55.228971][ T7156] ? arch_stack_walk+0x98/0xe0 [ 55.233735][ T7156] ? team_add_slave+0x5b/0x2540 [ 55.238595][ T7156] mutex_lock_nested+0x1a/0x20 [ 55.243356][ T7156] team_add_slave+0x5b/0x2540 [ 55.248015][ T7156] ? __kasan_kmalloc+0x114/0x160 [ 55.252964][ T7156] ? kmem_cache_alloc_trace+0x234/0x300 [ 55.258500][ T7156] ? rtnl_newlink+0x77/0x1bf0 [ 55.263167][ T7156] ? netlink_rcv_skb+0x190/0x3a0 [ 55.268080][ T7156] ? netlink_unicast+0x786/0x940 [ 55.273089][ T7156] ? netlink_sendmsg+0xa57/0xd70 [ 55.278017][ T7156] ? __sys_sendto+0x3f3/0x590 [ 55.282759][ T7156] ? __x64_sys_sendto+0xda/0xf0 [ 55.287587][ T7156] ? do_syscall_64+0xf3/0x1b0 [ 55.292245][ T7156] ? entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 55.298296][ T7156] ? mutex_is_locked+0xe/0x40 [ 55.303031][ T7156] do_setlink+0xcbf/0x3900 [ 55.307458][ T7156] ? trace_kmalloc+0xcb/0x120 [ 55.312197][ T7156] rtnl_newlink+0x1509/0x1bf0 [ 55.316863][ T7156] ? rtnl_newlink+0x351/0x1bf0 [ 55.321799][ T7156] ? __lock_acquire+0x116c/0x2b90 [ 55.326956][ T7156] ? do_raw_spin_unlock+0x134/0x8d0 [ 55.332157][ T7156] ? __mutex_lock_common+0x194c/0x2fc0 [ 55.337602][ T7156] ? rtnl_setlink+0x490/0x490 [ 55.342311][ T7156] rtnetlink_rcv_msg+0x889/0xd40 [ 55.347243][ T7156] ? lock_acquire+0x169/0x480 [ 55.351917][ T7156] ? rcu_lock_acquire+0x5/0x30 [ 55.356661][ T7156] ? check_preemption_disabled+0x40/0x240 [ 55.362372][ T7156] ? debug_smp_processor_id+0x5/0x20 [ 55.367761][ T7156] netlink_rcv_skb+0x190/0x3a0 [ 55.372542][ T7156] ? rtnetlink_bind+0x80/0x80 [ 55.377208][ T7156] netlink_unicast+0x786/0x940 [ 55.381954][ T7156] netlink_sendmsg+0xa57/0xd70 [ 55.386786][ T7156] ? netlink_getsockopt+0x9e0/0x9e0 [ 55.391962][ T7156] __sys_sendto+0x3f3/0x590 [ 55.396455][ T7156] ? check_preemption_disabled+0xb0/0x240 [ 55.402148][ T7156] ? debug_smp_processor_id+0x5/0x20 [ 55.407428][ T7156] __x64_sys_sendto+0xda/0xf0 [ 55.412100][ T7156] do_syscall_64+0xf3/0x1b0 [ 55.416755][ T7156] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 55.422977][ T7156] RIP: 0033:0x416583 [ 55.426853][ T7156] Code: ff 0f 83 b0 19 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 0d 1f 87 00 00 75 17 49 89 ca b8 2c 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 81 19 00 00 c3 48 83 ec 08 e8 87 fa ff ff [ 55.446637][ T7156] RSP: 002b:00007ffcd2681268 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 55.455038][ T7156] RAX: ffffffffffffffda RBX: 0000000000c82200 RCX: 0000000000416583 [ 55.462994][ T7156] RDX: 0000000000000028 RSI: 0000000000c82250 RDI: 0000000000000003 [ 55.471999][ T7156] RBP: 0000000000000000 R08: 00007ffcd2681270 R09: 000000000000000c [ 55.480075][ T7156] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 55.488279][ T7156] R13: 0000000000000000 R14: 0000000000c82250 R15: 0000000000000003 [ 55.497048][ T7156] Kernel Offset: disabled [ 55.501388][ T7156] Rebooting in 86400 seconds..