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-next-kasan-gce-0,10.128.0.21' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 42.019055] ------------[ cut here ]------------ [ 42.019882] WARNING: CPU: 0 PID: 2995 at kernel/tracepoint.c:210 tracepoint_probe_register_prio+0x397/0x9a0 [ 42.021400] Kernel panic - not syncing: panic_on_warn set ... [ 42.021400] [ 42.022375] CPU: 0 PID: 2995 Comm: syzkaller857118 Not tainted 4.14.0-rc5-next-20171018+ #36 [ 42.023495] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.024715] Call Trace: [ 42.025097] dump_stack+0x194/0x257 [ 42.025592] ? arch_local_irq_restore+0x53/0x53 [ 42.026220] ? vsnprintf+0x1ed/0x1900 [ 42.026741] panic+0x1e4/0x41c [ 42.027175] ? refcount_error_report+0x214/0x214 [ 42.027811] ? show_regs_print_info+0x65/0x65 [ 42.028418] ? retint_kernel+0x10/0x10 [ 42.028958] ? __warn+0x1a9/0x1e0 [ 42.029430] ? tracepoint_probe_register_prio+0x397/0x9a0 [ 42.030163] __warn+0x1c4/0x1e0 [ 42.030607] ? tracepoint_probe_register_prio+0x399/0x9a0 [ 42.031341] ? tracepoint_probe_register_prio+0x397/0x9a0 [ 42.032078] report_bug+0x211/0x2d0 [ 42.032574] fixup_bug+0x40/0x90 [ 42.033029] do_trap+0x260/0x390 [ 42.033491] do_error_trap+0x120/0x390 [ 42.034014] ? __lockdep_init_map+0xe4/0x650 [ 42.034604] ? do_trap+0x390/0x390 [ 42.035083] ? tracepoint_probe_register_prio+0x397/0x9a0 [ 42.035819] ? __mutex_unlock_slowpath+0xe9/0xac0 [ 42.036466] ? blk_add_trace_rq+0x190/0x190 [ 42.037046] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.037691] ? blk_add_trace_rq+0x190/0x190 [ 42.038287] do_invalid_op+0x1b/0x20 [ 42.038786] invalid_op+0x18/0x20 [ 42.039263] RIP: 0010:tracepoint_probe_register_prio+0x397/0x9a0 [ 42.045372] RSP: 0018:ffff8801d1d1f6c0 EFLAGS: 00010293 [ 42.050703] RAX: ffff8801d22e8540 RBX: 00000000ffffffef RCX: ffffffff81710f07 [ 42.057941] RDX: 0000000000000000 RSI: ffffffff85b679c0 RDI: ffff8801d5f19818 [ 42.065182] RBP: ffff8801d1d1f7c8 R08: ffffffff81710c10 R09: 0000000000000004 [ 42.072422] R10: ffff8801d1d1f6b0 R11: 0000000000000003 R12: ffffffff817597f0 [ 42.079667] R13: 0000000000000000 R14: 00000000ffffffff R15: ffff8801d1d1f7a0 [ 42.086920] ? blk_add_trace_rq+0x190/0x190 [ 42.091215] ? tracepoint_probe_register_prio+0xa0/0x9a0 [ 42.096634] ? tracepoint_probe_register_prio+0x397/0x9a0 [ 42.102150] ? blk_add_trace_rq+0x190/0x190 [ 42.106439] ? tracepoint_module_notify+0x780/0x780 [ 42.111427] ? relay_open_buf.part.10+0x9b0/0x9b0 [ 42.116236] ? blk_add_trace_rq+0x190/0x190 [ 42.120528] ? __debugfs_create_file+0x2cc/0x3e0 [ 42.125250] ? kmem_cache_alloc_trace+0x456/0x750 [ 42.130062] ? blk_add_trace_rq+0x190/0x190 [ 42.134353] tracepoint_probe_register+0x2a/0x40 [ 42.139083] blk_register_tracepoints+0x1e/0x2f0 [ 42.143806] do_blk_trace_setup+0xa10/0xcf0 [ 42.148100] ? blk_tracer_print_line+0x40/0x40 [ 42.152655] ? __might_sleep+0x95/0x190 [ 42.156602] ? kasan_check_write+0x14/0x20 [ 42.160807] ? _copy_from_user+0x99/0x110 [ 42.164925] blk_trace_setup+0xbd/0x180 [ 42.168868] ? do_blk_trace_setup+0xcf0/0xcf0 [ 42.173342] ? avc_has_extended_perms+0x6e5/0x12c0 [ 42.178244] sg_ioctl+0xc71/0x2d90 [ 42.181753] ? lock_release+0xa40/0xa40 [ 42.185693] ? __handle_mm_fault+0x587/0x39c0 [ 42.190159] ? sg_new_write.isra.20+0x830/0x830 [ 42.194799] ? is_bpf_text_address+0xa4/0x120 [ 42.199267] ? avc_has_extended_perms+0x7fa/0x12c0 [ 42.204172] ? avc_ss_reset+0x110/0x110 [ 42.208113] ? find_held_lock+0x35/0x1d0 [ 42.212151] ? __do_page_fault+0x64c/0xd60 [ 42.216353] ? lock_downgrade+0x990/0x990 [ 42.220473] ? handle_mm_fault+0x410/0x8d0 [ 42.224686] ? trace_event_raw_event_sched_switch+0x8a0/0x8a0 [ 42.230535] ? up_read+0x1a/0x40 [ 42.233877] ? rcu_note_context_switch+0x710/0x710 [ 42.238779] ? sg_new_write.isra.20+0x830/0x830 [ 42.243415] do_vfs_ioctl+0x1b1/0x1520 [ 42.247271] ? _cond_resched+0x14/0x30 [ 42.251131] ? ioctl_preallocate+0x2b0/0x2b0 [ 42.255511] ? selinux_capable+0x40/0x40 [ 42.259545] ? putname+0xf3/0x130 [ 42.262971] ? do_sys_open+0x320/0x6d0 [ 42.266836] ? security_file_ioctl+0x89/0xb0 [ 42.271216] SyS_ioctl+0x8f/0xc0 [ 42.274560] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 42.279280] RIP: 0033:0x444339 [ 42.282438] RSP: 002b:00007ffe05bb5b18 EFLAGS: 00000206 ORIG_RAX: 0000000000000010 [ 42.290111] RAX: ffffffffffffffda RBX: 00000000006d66c0 RCX: 0000000000444339 [ 42.297347] RDX: 000000002084cf90 RSI: 00000000c0481273 RDI: 0000000000000009 [ 42.304586] RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000 [ 42.311836] R10: 0000000000000000 R11: 0000000000000206 R12: ffffffffffffffff [ 42.319071] R13: 00000000c0481273 R14: 0000000000000000 R15: 0000000000000000 [ 42.326877] Dumping ftrace buffer: [ 42.330474] (ftrace buffer empty) [ 42.334154] Kernel Offset: disabled [ 42.337754] Rebooting in 86400 seconds..