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-2,10.128.0.33' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   25.954292] ==================================================================
[   25.955401] BUG: KASAN: global-out-of-bounds in show_timer+0x278/0x2b0
[   25.956277] Read of size 8 at addr ffffffff85343578 by task syzkaller289632/3091
[   25.957282] 
[   25.957514] CPU: 1 PID: 3091 Comm: syzkaller289632 Not tainted 4.15.0-rc1-next-20171201+ #57
[   25.958633] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   25.959867] Call Trace:
[   25.960227]  dump_stack+0x194/0x257
[   25.960734]  ? arch_local_irq_restore+0x53/0x53
[   25.961360]  ? show_regs_print_info+0x65/0x65
[   25.961962]  ? seq_printf+0xb3/0xe0
[   25.962454]  ? show_timer+0x278/0x2b0
[   25.962969]  print_address_description+0x178/0x250
[   25.963627]  ? show_timer+0x278/0x2b0
[   25.964139]  kasan_report+0x25b/0x340
[   25.964668]  __asan_report_load8_noabort+0x14/0x20
[   25.965347]  show_timer+0x278/0x2b0
[   25.965872]  ? timers_start+0x14c/0x1c0
[   25.966436]  seq_read+0x385/0x13d0
[   25.966964]  ? seq_lseek+0x3c0/0x3c0
[   25.967481]  ? selinux_file_permission+0x82/0x460
[   25.968131]  ? security_file_permission+0x89/0x1f0
[   25.968803]  ? rw_verify_area+0xe5/0x2b0
[   25.969363]  do_iter_read+0x3db/0x5b0
[   25.969893]  ? dup_iter+0x260/0x260
[   25.970391]  vfs_readv+0x121/0x1c0
[   25.970885]  ? compat_rw_copy_check_uvector+0x2e0/0x2e0
[   25.971635]  ? mm_fault_error+0x2c0/0x2c0
[   25.972196]  ? trace_event_raw_event_sched_switch+0x800/0x800
[   25.972977]  ? fget_raw+0x20/0x20
[   25.973446]  ? do_page_fault+0xee/0x720
[   25.974002]  do_preadv+0x11b/0x1a0
[   25.974480]  ? do_preadv+0x11b/0x1a0
[   25.978167]  SyS_preadv+0x30/0x40
[   25.981597]  entry_SYSCALL_64_fastpath+0x1f/0x96
[   25.986319] RIP: 0033:0x440209
[   25.989479] RSP: 002b:00007fff70ef6758 EFLAGS: 00000217 ORIG_RAX: 0000000000000127
[   25.997154] RAX: ffffffffffffffda RBX: 00007fff70ef6760 RCX: 0000000000440209
[   26.004392] RDX: 0000000000000008 RSI: 0000000020508000 RDI: 0000000000000003
[   26.011631] RBP: 0000000000000000 R08: 65732f636f72702f R09: 65732f636f72702f
[   26.018867] R10: 0000000000000000 R11: 0000000000000217 R12: 0000000000401ad0
[   26.026111] R13: 0000000000401b60 R14: 0000000000000000 R15: 0000000000000000
[   26.033367] 
[   26.034959] The buggy address belongs to the variable:
[   26.040211]  nstr.44312+0x18/0x40
[   26.043628] 
[   26.045224] Memory state around the buggy address:
[   26.050121]  ffffffff85343400: fa fa fa fa 00 00 00 fa fa fa fa fa 00 06 fa fa
[   26.057447]  ffffffff85343480: fa fa fa fa 07 fa fa fa fa fa fa fa 05 fa fa fa
[   26.064794] >ffffffff85343500: fa fa fa fa 07 fa fa fa fa fa fa fa 00 00 00 fa
[   26.072117]                                                                 ^
[   26.079353]  ffffffff85343580: fa fa fa fa 00 fa fa fa fa fa fa fa 07 fa fa fa
[   26.086680]  ffffffff85343600: fa fa fa fa 00 00 00 00 00 00 00 00 00 00 00 00
[   26.094005] ==================================================================
[   26.101331] Disabling lock debugging due to kernel taint
[   26.106744] Kernel panic - not syncing: panic_on_warn set ...
[   26.106744] 
[   26.114077] CPU: 1 PID: 3091 Comm: syzkaller289632 Tainted: G    B            4.15.0-rc1-next-20171201+ #57
[   26.123918] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   26.133236] Call Trace:
[   26.135789]  dump_stack+0x194/0x257
[   26.139382]  ? arch_local_irq_restore+0x53/0x53
[   26.144020]  ? vprintk_default+0x28/0x30
[   26.148046]  ? vsnprintf+0x1ed/0x1900
[   26.151813]  ? show_timer+0x250/0x2b0
[   26.155578]  panic+0x1e4/0x41c
[   26.158742]  ? refcount_error_report+0x214/0x214
[   26.163474]  ? add_taint+0x40/0x50
[   26.166978]  ? add_taint+0x1c/0x50
[   26.170490]  ? show_timer+0x278/0x2b0
[   26.174257]  kasan_end_report+0x50/0x50
[   26.178197]  kasan_report+0x144/0x340
[   26.181964]  __asan_report_load8_noabort+0x14/0x20
[   26.186858]  show_timer+0x278/0x2b0
[   26.190449]  ? timers_start+0x14c/0x1c0
[   26.194392]  seq_read+0x385/0x13d0
[   26.197905]  ? seq_lseek+0x3c0/0x3c0
[   26.201585]  ? selinux_file_permission+0x82/0x460
[   26.206392]  ? security_file_permission+0x89/0x1f0
[   26.211289]  ? rw_verify_area+0xe5/0x2b0
[   26.215318]  do_iter_read+0x3db/0x5b0
[   26.219083]  ? dup_iter+0x260/0x260
[   26.222680]  vfs_readv+0x121/0x1c0
[   26.226189]  ? compat_rw_copy_check_uvector+0x2e0/0x2e0
[   26.231518]  ? mm_fault_error+0x2c0/0x2c0
[   26.235630]  ? trace_event_raw_event_sched_switch+0x800/0x800
[   26.241481]  ? fget_raw+0x20/0x20
[   26.244899]  ? do_page_fault+0xee/0x720
[   26.248847]  do_preadv+0x11b/0x1a0
[   26.252350]  ? do_preadv+0x11b/0x1a0
[   26.256029]  SyS_preadv+0x30/0x40
[   26.259449]  entry_SYSCALL_64_fastpath+0x1f/0x96
[   26.264171] RIP: 0033:0x440209
[   26.267327] RSP: 002b:00007fff70ef6758 EFLAGS: 00000217 ORIG_RAX: 0000000000000127
[   26.275008] RAX: ffffffffffffffda RBX: 00007fff70ef6760 RCX: 0000000000440209
[   26.282243] RDX: 0000000000000008 RSI: 0000000020508000 RDI: 0000000000000003
[   26.289487] RBP: 0000000000000000 R08: 65732f636f72702f R09: 65732f636f72702f
[   26.296722] R10: 0000000000000000 R11: 0000000000000217 R12: 0000000000401ad0
[   26.303959] R13: 0000000000401b60 R14: 0000000000000000 R15: 0000000000000000
[   26.311590] Dumping ftrace buffer:
[   26.315095]    (ftrace buffer empty)
[   26.318782] Kernel Offset: disabled
[   26.322375] Rebooting in 86400 seconds..