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-mmots-kasan-gce-5,10.128.15.199' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   27.156711] ==================================================================
[   27.157818] BUG: KASAN: global-out-of-bounds in show_timer+0x278/0x2b0
[   27.158698] Read of size 8 at addr ffffffff85343838 by task syzkaller871205/3082
[   27.159686] 
[   27.159921] CPU: 0 PID: 3082 Comm: syzkaller871205 Not tainted 4.15.0-rc1-mm1+ #29
[   27.160931] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   27.162152] Call Trace:
[   27.162512]  dump_stack+0x194/0x257
[   27.163006]  ? arch_local_irq_restore+0x53/0x53
[   27.163638]  ? show_regs_print_info+0x65/0x65
[   27.164259]  ? seq_printf+0xb3/0xe0
[   27.164751]  ? show_timer+0x278/0x2b0
[   27.165264]  print_address_description+0x178/0x250
[   27.165937]  ? show_timer+0x278/0x2b0
[   27.166451]  kasan_report+0x25b/0x340
[   27.166969]  __asan_report_load8_noabort+0x14/0x20
[   27.167646]  show_timer+0x278/0x2b0
[   27.168133]  ? timers_start+0x14c/0x1c0
[   27.168672]  seq_read+0x385/0x13d0
[   27.169166]  ? seq_lseek+0x3c0/0x3c0
[   27.169668]  ? selinux_file_permission+0x82/0x460
[   27.170321]  ? security_file_permission+0x89/0x1f0
[   27.170984]  ? rw_verify_area+0xe5/0x2b0
[   27.171537]  do_iter_read+0x3db/0x5b0
[   27.172049]  ? dup_iter+0x260/0x260
[   27.172549]  vfs_readv+0x121/0x1c0
[   27.173068]  ? compat_rw_copy_check_uvector+0x2e0/0x2e0
[   27.173784]  ? mm_fault_error+0x2c0/0x2c0
[   27.174342]  ? trace_event_raw_event_sched_switch+0x800/0x800
[   27.175125]  ? fget_raw+0x20/0x20
[   27.175594]  ? do_page_fault+0xee/0x720
[   27.176149]  do_preadv+0x11b/0x1a0
[   27.176650]  ? do_preadv+0x11b/0x1a0
[   27.177156]  SyS_preadv+0x30/0x40
[   27.180581]  entry_SYSCALL_64_fastpath+0x1f/0x96
[   27.185303] RIP: 0033:0x440209
[   27.188461] RSP: 002b:00007ffc88ccb0f8 EFLAGS: 00000217 ORIG_RAX: 0000000000000127
[   27.196138] RAX: ffffffffffffffda RBX: 00007ffc88ccb100 RCX: 0000000000440209
[   27.203380] RDX: 0000000000000008 RSI: 0000000020508000 RDI: 0000000000000003
[   27.210625] RBP: 0000000000000000 R08: 65732f636f72702f R09: 65732f636f72702f
[   27.217864] R10: 0000000000000000 R11: 0000000000000217 R12: 0000000000401ad0
[   27.225102] R13: 0000000000401b60 R14: 0000000000000000 R15: 0000000000000000
[   27.232356] 
[   27.233950] The buggy address belongs to the variable:
[   27.239197]  nstr.44309+0x18/0x40
[   27.242629] 
[   27.244224] Memory state around the buggy address:
[   27.249122]  ffffffff85343700: fa fa fa fa 00 06 fa fa fa fa fa fa 07 fa fa fa
[   27.256449]  ffffffff85343780: fa fa fa fa 05 fa fa fa fa fa fa fa 07 fa fa fa
[   27.263774] >ffffffff85343800: fa fa fa fa 00 00 00 fa fa fa fa fa 00 fa fa fa
[   27.271106]                                         ^
[   27.276288]  ffffffff85343880: fa fa fa fa 07 fa fa fa fa fa fa fa 00 00 00 00
[   27.283616]  ffffffff85343900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   27.290942] ==================================================================
[   27.298283] Disabling lock debugging due to kernel taint
[   27.303696] Kernel panic - not syncing: panic_on_warn set ...
[   27.303696] 
[   27.311023] CPU: 0 PID: 3082 Comm: syzkaller871205 Tainted: G    B            4.15.0-rc1-mm1+ #29
[   27.319994] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   27.329314] Call Trace:
[   27.331870]  dump_stack+0x194/0x257
[   27.335466]  ? arch_local_irq_restore+0x53/0x53
[   27.340103]  ? vprintk_default+0x28/0x30
[   27.344129]  ? vsnprintf+0x1ed/0x1900
[   27.347898]  ? show_timer+0x1c0/0x2b0
[   27.351665]  panic+0x1e4/0x41c
[   27.354822]  ? refcount_error_report+0x214/0x214
[   27.359545]  ? add_taint+0x40/0x50
[   27.363050]  ? add_taint+0x1c/0x50
[   27.366557]  ? show_timer+0x278/0x2b0
[   27.370326]  kasan_end_report+0x50/0x50
[   27.374265]  kasan_report+0x144/0x340
[   27.378035]  __asan_report_load8_noabort+0x14/0x20
[   27.382927]  show_timer+0x278/0x2b0
[   27.386519]  ? timers_start+0x14c/0x1c0
[   27.390958]  seq_read+0x385/0x13d0
[   27.394471]  ? seq_lseek+0x3c0/0x3c0
[   27.398154]  ? selinux_file_permission+0x82/0x460
[   27.402964]  ? security_file_permission+0x89/0x1f0
[   27.407859]  ? rw_verify_area+0xe5/0x2b0
[   27.411887]  do_iter_read+0x3db/0x5b0
[   27.415653]  ? dup_iter+0x260/0x260
[   27.419251]  vfs_readv+0x121/0x1c0
[   27.422759]  ? compat_rw_copy_check_uvector+0x2e0/0x2e0
[   27.428089]  ? mm_fault_error+0x2c0/0x2c0
[   27.432203]  ? trace_event_raw_event_sched_switch+0x800/0x800
[   27.438055]  ? fget_raw+0x20/0x20
[   27.441487]  ? do_page_fault+0xee/0x720
[   27.445436]  do_preadv+0x11b/0x1a0
[   27.448941]  ? do_preadv+0x11b/0x1a0
[   27.452623]  SyS_preadv+0x30/0x40
[   27.456046]  entry_SYSCALL_64_fastpath+0x1f/0x96
[   27.460765] RIP: 0033:0x440209
[   27.463922] RSP: 002b:00007ffc88ccb0f8 EFLAGS: 00000217 ORIG_RAX: 0000000000000127
[   27.471599] RAX: ffffffffffffffda RBX: 00007ffc88ccb100 RCX: 0000000000440209
[   27.478837] RDX: 0000000000000008 RSI: 0000000020508000 RDI: 0000000000000003
[   27.486073] RBP: 0000000000000000 R08: 65732f636f72702f R09: 65732f636f72702f
[   27.493309] R10: 0000000000000000 R11: 0000000000000217 R12: 0000000000401ad0
[   27.500545] R13: 0000000000401b60 R14: 0000000000000000 R15: 0000000000000000
[   27.507826] Dumping ftrace buffer:
[   27.511334]    (ftrace buffer empty)
[   27.515012] Kernel Offset: disabled
[   27.518605] Rebooting in 86400 seconds..