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-net-kasan-gce-9,10.128.15.205' (ECDSA) to the list of known hosts. net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 executing program syzkaller login: [ 41.712074] FAULT_INJECTION: forcing a failure. [ 41.712074] name failslab, interval 1, probability 0, space 0, times 1 [ 41.713686] CPU: 1 PID: 3085 Comm: syzkaller064164 Not tainted 4.15.0-rc1+ #137 [ 41.714685] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.715907] Call Trace: [ 41.716271] dump_stack+0x194/0x257 [ 41.716767] ? arch_local_irq_restore+0x53/0x53 [ 41.717402] should_fail+0x8c0/0xa40 [ 41.717904] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 41.718590] ? find_held_lock+0x39/0x1d0 [ 41.719134] ? print_usage_bug+0x3f0/0x3f0 [ 41.719708] ? lock_downgrade+0x980/0x980 [ 41.720267] ? radix_tree_iter_tag_clear+0x97/0xd0 [ 41.720924] ? radix_tree_iter_replace+0x4c/0x60 [ 41.721594] ? mark_held_locks+0xb2/0x100 [ 41.722153] ? __local_bh_enable_ip+0x121/0x230 [ 41.722836] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 41.723503] ? tipc_alloc_conn+0x4b0/0x610 [ 41.724069] ? trace_hardirqs_on+0xd/0x10 [ 41.724647] ? __local_bh_enable_ip+0x121/0x230 [ 41.725271] ? _raw_spin_unlock_bh+0x30/0x40 [ 41.725864] should_failslab+0xec/0x120 [ 41.726411] kmem_cache_alloc_trace+0x4b/0x750 [ 41.727025] ? lock_downgrade+0x980/0x980 [ 41.727594] ? tipc_topsrv_kern_subscr+0x1fa/0x810 [ 41.728254] tipc_subscrb_connect_cb+0xaa/0x270 [ 41.728879] ? tipc_subscrb_put+0x30/0x30 [ 41.729454] ? __lock_is_held+0xbc/0x140 [ 41.730013] tipc_topsrv_kern_subscr+0x442/0x810 [ 41.730661] ? tipc_conn_terminate+0x50/0x50 [ 41.731251] ? addr_domain+0x204/0x380 [ 41.731772] ? tipc_nlist_init+0x77/0x130 [ 41.733102] ? in_own_node+0x320/0x320 [ 41.736983] tipc_group_create+0x702/0x9c0 [ 41.741188] ? tipc_group_size+0x50/0x50 [ 41.745216] ? lock_release+0xda0/0xda0 [ 41.749175] ? addr_domain+0x204/0x380 [ 41.753038] ? in_own_node+0x320/0x320 [ 41.756900] ? lock_sock_nested+0x91/0x110 [ 41.761106] ? trace_hardirqs_on+0xd/0x10 [ 41.765231] ? __local_bh_enable_ip+0x121/0x230 [ 41.769876] tipc_setsockopt+0x249/0xc10 [ 41.773917] ? tipc_sk_leave+0x200/0x200 [ 41.777957] ? security_socket_setsockopt+0x89/0xb0 [ 41.782945] SyS_setsockopt+0x189/0x360 [ 41.786891] ? SyS_recv+0x40/0x40 [ 41.790317] ? SyS_write+0x184/0x220 [ 41.793999] ? entry_SYSCALL_64_fastpath+0x5/0x96 [ 41.798810] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 41.803796] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 41.808527] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 41.813248] RIP: 0033:0x444dd9 [ 41.816406] RSP: 002b:00007fffe5997f78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 41.824081] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000444dd9 [ 41.831318] RDX: 0000000000000087 RSI: 000000000000010f RDI: 0000000000000004 [ 41.838553] RBP: 0000000000000006 R08: 000000000000001c R09: 0000006f00000034 [ 41.845790] R10: 0000000020265000 R11: 0000000000000246 R12: 0000000000402310 [ 41.853036] R13: 00000000004023a0 R14: 0000000000000000 R15: 0000000000000000 [ 41.860692] Subscriber rejected, no memory [ 41.864973] kasan: CONFIG_KASAN_INLINE enabled [ 41.869549] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 41.876882] general protection fault: 0000 [#1] SMP KASAN [ 41.882385] Dumping ftrace buffer: [ 41.885888] (ftrace buffer empty) [ 41.889561] Modules linked in: [ 41.892722] CPU: 0 PID: 3085 Comm: syzkaller064164 Not tainted 4.15.0-rc1+ #137 [ 41.900130] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.909450] task: 00000000c24413a5 task.stack: 000000005e8160b5 [ 41.915475] RIP: 0010:__lock_acquire+0xd55/0x47f0 [ 41.920278] RSP: 0018:ffff8801cb5474a8 EFLAGS: 00010002 [ 41.925604] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 41.932837] RDX: 0000000000000004 RSI: 0000000000000000 RDI: ffffffff85ecb400 [ 41.940070] RBP: ffff8801cb547830 R08: 0000000000000001 R09: 0000000000000000 [ 41.947304] R10: 0000000000000000 R11: ffffffff87489d60 R12: ffff8801cd2980c0 [ 41.954537] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000020 [ 41.961772] FS: 00000000014ee880(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 41.969963] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.975807] CR2: 00007ffee2426e40 CR3: 00000001cb85a000 CR4: 00000000001406f0 [ 41.983046] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.990280] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.997514] Call Trace: [ 42.000068] ? find_held_lock+0x39/0x1d0 [ 42.004098] ? lock_downgrade+0x980/0x980 [ 42.008214] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 42.013368] ? find_held_lock+0x39/0x1d0 [ 42.017400] ? llist_add_batch+0xf3/0x180 [ 42.021513] ? find_last_bit+0xd0/0xd0 [ 42.025367] ? tick_nohz_tick_stopped+0x9/0x20 [ 42.029912] ? irq_work_queue+0xf7/0x170 [ 42.033940] ? wake_up_klogd+0xc3/0x100 [ 42.037877] ? is_console_locked+0x20/0x20 [ 42.042080] ? console_unlock+0x57e/0xd80 [ 42.046191] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 42.051171] ? console_unlock+0x983/0xd80 [ 42.055286] ? __down_trylock_console_sem+0x70/0x1e0 [ 42.060349] ? wake_up_klogd+0x100/0x100 [ 42.064373] ? vprintk_emit+0x49b/0x590 [ 42.068312] lock_acquire+0x1d5/0x580 [ 42.072085] ? tipc_subscrb_subscrp_delete+0x8f/0x470 [ 42.077237] ? lock_release+0xda0/0xda0 [ 42.081174] ? vprintk_default+0x28/0x30 [ 42.085204] ? vprintk_func+0x5e/0xc0 [ 42.088966] ? printk+0xaa/0xca [ 42.092210] ? tipc_subscrb_subscrp_delete+0x8f/0x470 [ 42.097362] _raw_spin_lock_bh+0x31/0x40 [ 42.101385] ? tipc_subscrb_subscrp_delete+0x8f/0x470 [ 42.106538] tipc_subscrb_subscrp_delete+0x8f/0x470 [ 42.111518] ? tipc_subscrp_put+0x360/0x360 [ 42.115800] ? tipc_subscrb_put+0x30/0x30 [ 42.119910] ? __lock_is_held+0xbc/0x140 [ 42.123932] ? tipc_subscrb_subscrp_delete+0x470/0x470 [ 42.129172] tipc_subscrb_release_cb+0x17/0x30 [ 42.133719] tipc_close_conn+0x171/0x270 [ 42.137745] tipc_topsrv_kern_subscr+0x724/0x810 [ 42.142464] ? tipc_conn_terminate+0x50/0x50 [ 42.146837] ? addr_domain+0x204/0x380 [ 42.150696] ? tipc_nlist_init+0x77/0x130 [ 42.154806] ? in_own_node+0x320/0x320 [ 42.158660] tipc_group_create+0x702/0x9c0 [ 42.162860] ? tipc_group_size+0x50/0x50 [ 42.166883] ? lock_release+0xda0/0xda0 [ 42.170824] ? addr_domain+0x204/0x380 [ 42.174680] ? in_own_node+0x320/0x320 [ 42.178532] ? lock_sock_nested+0x91/0x110 [ 42.182728] ? trace_hardirqs_on+0xd/0x10 [ 42.186843] ? __local_bh_enable_ip+0x121/0x230 [ 42.191476] tipc_setsockopt+0x249/0xc10 [ 42.195502] ? tipc_sk_leave+0x200/0x200 [ 42.199529] ? security_socket_setsockopt+0x89/0xb0 [ 42.204510] SyS_setsockopt+0x189/0x360 [ 42.208446] ? SyS_recv+0x40/0x40 [ 42.211864] ? SyS_write+0x184/0x220 [ 42.215543] ? entry_SYSCALL_64_fastpath+0x5/0x96 [ 42.220348] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 42.225330] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 42.230049] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 42.234769] RIP: 0033:0x444dd9 [ 42.237923] RSP: 002b:00007fffe5997f78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 42.245593] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000444dd9 [ 42.252835] RDX: 0000000000000087 RSI: 000000000000010f RDI: 0000000000000004 [ 42.260070] RBP: 0000000000000006 R08: 000000000000001c R09: 0000006f00000034 [ 42.267303] R10: 0000000020265000 R11: 0000000000000246 R12: 0000000000402310 [ 42.274537] R13: 00000000004023a0 R14: 0000000000000000 R15: 0000000000000000 [ 42.281774] 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 [ 42.300805] RIP: __lock_acquire+0xd55/0x47f0 RSP: ffff8801cb5474a8 [ 42.307089] ---[ end trace 1d79d73eb824586d ]--- [ 42.311807] Kernel panic - not syncing: Fatal exception in interrupt [ 42.318291] Dumping ftrace buffer: [ 42.321805] (ftrace buffer empty) [ 42.325480] Kernel Offset: disabled [ 42.329070] Rebooting in 86400 seconds..