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-386-3,10.128.0.49' (ECDSA) to the list of known hosts. 2017/12/01 18:02:56 parsed 1 programs 2017/12/01 18:02:56 executed programs: 0 syzkaller login: [ 28.070753] kasan: CONFIG_KASAN_INLINE enabled [ 28.071521] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 28.072629] general protection fault: 0000 [#1] SMP KASAN [ 28.073368] Dumping ftrace buffer: [ 28.073845] (ftrace buffer empty) [ 28.074347] Modules linked in: [ 28.074781] CPU: 1 PID: 3088 Comm: syz-executor0 Not tainted 4.15.0-rc1+ #113 [ 28.075731] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.076950] task: 0000000007e36d46 task.stack: 000000008d5b3ff0 [ 28.077758] RIP: 0010:sidtab_search_core+0x6a/0x320 [ 28.078419] RSP: 0018:ffff8801cd0a7878 EFLAGS: 00010202 [ 28.079127] RAX: dffffc0000000000 RBX: 0000000000000008 RCX: ffffffff82207ffd [ 28.080078] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffffffff874c5180 [ 28.081028] RBP: ffff8801cd0a78a8 R08: 0000000000000003 R09: 1ffffffff0d6ab33 [ 28.081979] R10: 0000000000000000 R11: ffffffff87489d60 R12: 0000000000000001 [ 28.082932] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 28.083885] FS: 0000000000000000(0000) GS:ffff8801db500000(0063) knlGS:00000000f7f1bb40 [ 28.084959] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 28.085733] CR2: 00000000080e8e3c CR3: 00000001cba06000 CR4: 00000000001406e0 [ 28.086729] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 28.087679] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 28.088646] Call Trace: [ 28.089032] sidtab_search+0x1f/0x30 [ 28.089534] security_bounded_transition+0xa8/0x4d0 [ 28.090213] ? security_validate_transition+0x60/0x60 [ 28.090947] ? security_prepare_creds+0x89/0xb0 [ 28.095584] ? prepare_creds+0x2ba/0x360 [ 28.099611] ? abort_creds+0x130/0x130 [ 28.103467] selinux_setprocattr+0x8d0/0xb50 [ 28.107844] ? ptrace_parent_sid+0x540/0x540 [ 28.112224] security_setprocattr+0x85/0xc0 [ 28.116518] proc_pid_attr_write+0x1e6/0x280 [ 28.120893] ? proc_task_getattr+0x180/0x180 [ 28.125266] __vfs_write+0xef/0x970 [ 28.128863] ? lock_acquire+0x1d5/0x580 [ 28.132799] ? vfs_write+0x410/0x510 [ 28.136477] ? kernel_read+0x120/0x120 [ 28.140333] ? __lock_is_held+0xbc/0x140 [ 28.144366] ? rcu_read_lock_sched_held+0x108/0x120 [ 28.149348] ? rcu_sync_lockdep_assert+0x6d/0xb0 [ 28.154069] ? __sb_start_write+0x203/0x290 [ 28.158359] vfs_write+0x18f/0x510 [ 28.161866] SyS_write+0xef/0x220 [ 28.165283] ? SyS_read+0x220/0x220 [ 28.168880] ? do_fast_syscall_32+0x156/0xf9d [ 28.173341] ? SyS_read+0x220/0x220 [ 28.176934] do_fast_syscall_32+0x3ee/0xf9d [ 28.181226] ? do_int80_syscall_32+0x9d0/0x9d0 [ 28.185779] ? lockdep_sys_exit+0x47/0xf0 [ 28.189905] ? syscall_return_slowpath+0x2ad/0x550 [ 28.194804] ? sysret32_from_system_call+0x5/0x3b [ 28.199612] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 28.204421] entry_SYSENTER_compat+0x51/0x60 [ 28.208793] RIP: 0023:0xf7f1fc79 [ 28.212121] RSP: 002b:00000000f7f1b08c EFLAGS: 00000296 ORIG_RAX: 0000000000000004 [ 28.219797] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000002035aff8 [ 28.227034] RDX: 0000000000000008 RSI: 0000000000000000 RDI: 0000000000000000 [ 28.234269] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 28.241505] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 28.248740] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 28.255982] Code: ea 03 41 83 e4 7f 80 3c 02 00 0f 85 7d 02 00 00 4c 8b 33 4d 63 e4 48 b8 00 00 00 00 00 fc ff df 4b 8d 1c e6 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 41 02 00 00 48 8b 1b 48 85 db 0f 84 8b 00 00 [ 28.275051] RIP: sidtab_search_core+0x6a/0x320 RSP: ffff8801cd0a7878 [ 28.281563] ---[ end trace 825c9a343291c242 ]--- [ 28.286310] Kernel panic - not syncing: Fatal exception [ 28.291996] Dumping ftrace buffer: [ 28.295502] (ftrace buffer empty) [ 28.299180] Kernel Offset: disabled [ 28.302773] Rebooting in 86400 seconds..