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-6,10.128.0.42' (ECDSA) to the list of known hosts. 2017/12/02 12:03:57 parsed 1 programs 2017/12/02 12:03:57 executed programs: 0 syzkaller login: [ 42.340685] kasan: CONFIG_KASAN_INLINE enabled [ 42.341514] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 42.342629] general protection fault: 0000 [#1] SMP KASAN [ 42.343369] Dumping ftrace buffer: [ 42.343844] (ftrace buffer empty) [ 42.344340] Modules linked in: [ 42.344777] CPU: 1 PID: 3096 Comm: syz-executor0 Not tainted 4.15.0-rc1-mm1+ #29 [ 42.345762] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.346984] task: 00000000b79d2251 task.stack: 00000000fc290b19 [ 42.347795] RIP: 0010:sidtab_search_core+0x6a/0x320 [ 42.348458] RSP: 0018:ffff8801cb40fa10 EFLAGS: 00010202 [ 42.349168] RAX: dffffc0000000000 RBX: 0000000000000008 RCX: ffffffff8220ee2d [ 42.350131] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffffffff874c81c0 [ 42.351102] RBP: ffff8801cb40fa40 R08: 0000000000000003 R09: 1ffffffff0d6b13b [ 42.352055] R10: 0000000000000000 R11: ffffffff8748cda0 R12: 0000000000000001 [ 42.353008] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 42.353977] FS: 00007f8bb44c3700(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000 [ 42.355051] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.355845] CR2: 00000000004d5638 CR3: 00000001cc649000 CR4: 00000000001406e0 [ 42.356799] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.357753] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.358703] Call Trace: [ 42.359063] sidtab_search+0x1f/0x30 [ 42.359567] security_bounded_transition+0xa8/0x4d0 [ 42.360234] ? security_validate_transition+0x60/0x60 [ 42.360925] ? security_prepare_creds+0x89/0xb0 [ 42.365563] ? prepare_creds+0x2ba/0x360 [ 42.369589] ? abort_creds+0x130/0x130 [ 42.373448] selinux_setprocattr+0x8d0/0xb50 [ 42.377825] ? ptrace_parent_sid+0x540/0x540 [ 42.382205] security_setprocattr+0x85/0xc0 [ 42.386512] proc_pid_attr_write+0x1e6/0x280 [ 42.390886] ? proc_task_getattr+0x180/0x180 [ 42.395259] __vfs_write+0xef/0x970 [ 42.398853] ? lock_acquire+0x1d5/0x580 [ 42.402791] ? vfs_write+0x410/0x510 [ 42.406487] ? kernel_read+0x120/0x120 [ 42.410342] ? __lock_is_held+0xbc/0x140 [ 42.414373] ? rcu_read_lock_sched_held+0x108/0x120 [ 42.419355] ? rcu_sync_lockdep_assert+0x6d/0xb0 [ 42.424078] ? __sb_start_write+0x203/0x290 [ 42.428366] vfs_write+0x18f/0x510 [ 42.431873] SyS_write+0xef/0x220 [ 42.435296] ? SyS_read+0x220/0x220 [ 42.438887] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 42.443879] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 42.448612] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 42.453341] RIP: 0033:0x4529d9 [ 42.456498] RSP: 002b:00007f8bb44c2c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000001 [ 42.464170] RAX: ffffffffffffffda RBX: 00007f8bb44c2950 RCX: 00000000004529d9 [ 42.471406] RDX: 0000000000000002 RSI: 000000002000f000 RDI: 0000000000000000 [ 42.478641] RBP: 00007f8bb44c2940 R08: 0000000000000000 R09: 0000000000000000 [ 42.485878] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000004b7354 [ 42.493112] R13: 00007f8bb44c2ac8 R14: 00000000004b7366 R15: 0000000000000000 [ 42.500353] 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 [ 42.519417] RIP: sidtab_search_core+0x6a/0x320 RSP: ffff8801cb40fa10 [ 42.525953] ---[ end trace 2fed5f7013a30295 ]--- [ 42.530692] Kernel panic - not syncing: Fatal exception [ 42.536053] Dumping ftrace buffer: [ 42.539559] (ftrace buffer empty) [ 42.543234] Kernel Offset: disabled [ 42.546833] Rebooting in 86400 seconds..