INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added 'ci-upstream-kasan-gce-386-4,10.128.0.35' (ECDSA) to the list of known hosts. 2017/12/02 08:37:54 parsed 1 programs 2017/12/02 08:37:54 executed programs: 0 syzkaller login: [ 32.798331] FAULT_INJECTION: forcing a failure. [ 32.798331] name failslab, interval 1, probability 0, space 0, times 1 [ 32.799925] CPU: 0 PID: 3092 Comm: syz-executor0 Not tainted 4.15.0-rc1+ #114 [ 32.800879] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.802098] Call Trace: [ 32.802457] dump_stack+0x194/0x257 [ 32.802949] ? arch_local_irq_restore+0x53/0x53 [ 32.803581] should_fail+0x8c0/0xa40 [ 32.804084] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 32.804767] ? find_held_lock+0x39/0x1d0 [ 32.805311] ? print_usage_bug+0x3f0/0x3f0 [ 32.805906] ? lock_downgrade+0x980/0x980 [ 32.806466] ? radix_tree_iter_tag_clear+0x97/0xd0 [ 32.807119] ? radix_tree_iter_replace+0x4c/0x60 [ 32.807761] ? mark_held_locks+0xb2/0x100 [ 32.808319] ? __local_bh_enable_ip+0x121/0x230 [ 32.808942] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 32.809639] ? tipc_alloc_conn+0x4b0/0x610 [ 32.810204] ? trace_hardirqs_on+0xd/0x10 [ 32.810777] ? __local_bh_enable_ip+0x121/0x230 [ 32.811401] ? _raw_spin_unlock_bh+0x30/0x40 [ 32.811994] should_failslab+0xec/0x120 [ 32.812528] kmem_cache_alloc_trace+0x4b/0x750 [ 32.813151] ? lock_downgrade+0x980/0x980 [ 32.813707] ? tipc_topsrv_kern_subscr+0x1fa/0x810 [ 32.814366] tipc_subscrb_connect_cb+0xaa/0x270 [ 32.814990] ? tipc_subscrb_put+0x30/0x30 [ 32.815547] ? __lock_is_held+0xbc/0x140 [ 32.816105] tipc_topsrv_kern_subscr+0x442/0x810 [ 32.816741] ? tipc_conn_terminate+0x50/0x50 [ 32.817330] ? addr_domain+0x204/0x380 [ 32.817851] ? tipc_nlist_init+0x77/0x130 [ 32.818407] ? in_own_node+0x320/0x320 [ 32.818939] tipc_group_create+0x702/0x9c0 [ 32.823145] ? tipc_group_size+0x50/0x50 [ 32.827175] ? lock_release+0xda0/0xda0 [ 32.831133] ? addr_domain+0x204/0x380 [ 32.834991] ? in_own_node+0x320/0x320 [ 32.838845] ? lock_sock_nested+0x91/0x110 [ 32.843046] ? trace_hardirqs_on+0xd/0x10 [ 32.847160] ? __local_bh_enable_ip+0x121/0x230 [ 32.851800] tipc_setsockopt+0x249/0xc10 [ 32.855839] ? tipc_sk_leave+0x200/0x200 [ 32.859880] ? security_socket_setsockopt+0x89/0xb0 [ 32.864869] compat_SyS_setsockopt+0x2e7/0x410 [ 32.869421] ? scm_detach_fds_compat+0x3c0/0x3c0 [ 32.874147] ? do_fast_syscall_32+0x156/0xf9d [ 32.878611] ? scm_detach_fds_compat+0x3c0/0x3c0 [ 32.883334] do_fast_syscall_32+0x3ee/0xf9d [ 32.887633] ? do_int80_syscall_32+0x9d0/0x9d0 [ 32.892185] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 32.896922] ? lockdep_sys_exit+0x47/0xf0 [ 32.901047] ? syscall_return_slowpath+0x2ad/0x550 [ 32.905949] ? sysret32_from_system_call+0x5/0x3b [ 32.910765] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 32.915581] entry_SYSENTER_compat+0x51/0x60 [ 32.919959] RIP: 0023:0xf7fd8c79 [ 32.923290] RSP: 002b:00000000ffe3ea6c EFLAGS: 00000296 ORIG_RAX: 000000000000016e [ 32.930965] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000000010f [ 32.938205] RDX: 0000000000000087 RSI: 00000000206fb000 RDI: 0000000000000010 [ 32.945443] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 32.952680] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 32.959917] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 32.967448] Subscriber rejected, no memory [ 32.972086] kasan: CONFIG_KASAN_INLINE enabled [ 32.976684] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 32.984016] general protection fault: 0000 [#1] SMP KASAN [ 32.989521] Dumping ftrace buffer: [ 32.993025] (ftrace buffer empty) [ 32.996699] Modules linked in: [ 32.999856] CPU: 1 PID: 3092 Comm: syz-executor0 Not tainted 4.15.0-rc1+ #114 [ 33.007089] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.016408] task: 00000000b922df06 task.stack: 00000000f204d590 [ 33.022434] RIP: 0010:__lock_acquire+0xd55/0x47f0 [ 33.027239] RSP: 0018:ffff8801cbba7350 EFLAGS: 00010002 [ 33.032566] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 33.039807] RDX: 0000000000000004 RSI: 0000000000000000 RDI: ffffffff85ecb440 [ 33.047040] RBP: ffff8801cbba76d8 R08: 0000000000000001 R09: 0000000000000000 [ 33.054273] R10: 0000000000000000 R11: ffffffff87489d60 R12: ffff8801cc82a100 [ 33.061507] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000020 [ 33.068741] FS: 0000000000000000(0000) GS:ffff8801db500000(0063) knlGS:0000000008cd8900 [ 33.076930] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 33.082775] CR2: 000000009bc20000 CR3: 00000001cb859000 CR4: 00000000001406e0 [ 33.090010] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 33.097244] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 33.104477] Call Trace: [ 33.107031] ? find_held_lock+0x39/0x1d0 [ 33.111056] ? lock_downgrade+0x980/0x980 [ 33.115167] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 33.120317] ? find_held_lock+0x39/0x1d0 [ 33.124344] ? llist_add_batch+0xf3/0x180 [ 33.128456] ? find_last_bit+0xd0/0xd0 [ 33.132308] ? tick_nohz_tick_stopped+0x9/0x20 [ 33.136852] ? irq_work_queue+0xf7/0x170 [ 33.140875] ? wake_up_klogd+0xc3/0x100 [ 33.144810] ? is_console_locked+0x20/0x20 [ 33.149008] ? console_unlock+0x57e/0xd80 [ 33.153120] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 33.158102] ? console_unlock+0x983/0xd80 [ 33.162213] ? __down_trylock_console_sem+0x70/0x1e0 [ 33.167279] ? wake_up_klogd+0x100/0x100 [ 33.171302] ? vprintk_emit+0x49b/0x590 [ 33.175239] lock_acquire+0x1d5/0x580 [ 33.179002] ? tipc_subscrb_subscrp_delete+0x8f/0x470 [ 33.184154] ? lock_release+0xda0/0xda0 [ 33.188093] ? vprintk_default+0x28/0x30 [ 33.192115] ? vprintk_func+0x5e/0xc0 [ 33.195876] ? printk+0xaa/0xca [ 33.199117] ? tipc_subscrb_subscrp_delete+0x8f/0x470 [ 33.204269] _raw_spin_lock_bh+0x31/0x40 [ 33.208293] ? tipc_subscrb_subscrp_delete+0x8f/0x470 [ 33.213453] tipc_subscrb_subscrp_delete+0x8f/0x470 [ 33.218435] ? tipc_subscrp_put+0x360/0x360 [ 33.222721] ? tipc_subscrb_put+0x30/0x30 [ 33.226834] ? __lock_is_held+0xbc/0x140 [ 33.230857] ? tipc_subscrb_subscrp_delete+0x470/0x470 [ 33.236095] tipc_subscrb_release_cb+0x17/0x30 [ 33.240641] tipc_close_conn+0x171/0x270 [ 33.244666] tipc_topsrv_kern_subscr+0x724/0x810 [ 33.249390] ? tipc_conn_terminate+0x50/0x50 [ 33.253762] ? addr_domain+0x204/0x380 [ 33.257612] ? tipc_nlist_init+0x77/0x130 [ 33.261721] ? in_own_node+0x320/0x320 [ 33.265572] tipc_group_create+0x702/0x9c0 [ 33.269768] ? tipc_group_size+0x50/0x50 [ 33.273792] ? lock_release+0xda0/0xda0 [ 33.277730] ? addr_domain+0x204/0x380 [ 33.281579] ? in_own_node+0x320/0x320 [ 33.285428] ? lock_sock_nested+0x91/0x110 [ 33.289628] ? trace_hardirqs_on+0xd/0x10 [ 33.293739] ? __local_bh_enable_ip+0x121/0x230 [ 33.298371] tipc_setsockopt+0x249/0xc10 [ 33.302395] ? tipc_sk_leave+0x200/0x200 [ 33.306424] ? security_socket_setsockopt+0x89/0xb0 [ 33.311407] compat_SyS_setsockopt+0x2e7/0x410 [ 33.315950] ? scm_detach_fds_compat+0x3c0/0x3c0 [ 33.320669] ? do_fast_syscall_32+0x156/0xf9d [ 33.325127] ? scm_detach_fds_compat+0x3c0/0x3c0 [ 33.329844] do_fast_syscall_32+0x3ee/0xf9d [ 33.334135] ? do_int80_syscall_32+0x9d0/0x9d0 [ 33.338679] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 33.343397] ? lockdep_sys_exit+0x47/0xf0 [ 33.347508] ? syscall_return_slowpath+0x2ad/0x550 [ 33.352407] ? sysret32_from_system_call+0x5/0x3b [ 33.357221] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 33.362030] entry_SYSENTER_compat+0x51/0x60 [ 33.366400] RIP: 0023:0xf7fd8c79 [ 33.369725] RSP: 002b:00000000ffe3ea6c EFLAGS: 00000296 ORIG_RAX: 000000000000016e [ 33.377394] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000000010f [ 33.384627] RDX: 0000000000000087 RSI: 00000000206fb000 RDI: 0000000000000010 [ 33.391859] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 33.399093] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 33.406328] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 33.413562] Code: e9 03 f3 48 ab 48 81 c4 60 03 00 00 44 89 f8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 4c 89 fa 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 cf 38 00 00 49 81 3f 00 58 8b 86 41 be 00 00 [ 33.432595] RIP: __lock_acquire+0xd55/0x47f0 RSP: ffff8801cbba7350 [ 33.438879] ---[ end trace 1ff020b845084a89 ]--- [ 33.443595] Kernel panic - not syncing: Fatal exception in interrupt [ 33.450096] Dumping ftrace buffer: [ 33.453599] (ftrace buffer empty) [ 33.457272] Kernel Offset: disabled [ 33.460861] Rebooting in 86400 seconds..