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-386-3,10.128.15.225' (ECDSA) to the list of known hosts. 2017/12/01 19:26:24 parsed 1 programs 2017/12/01 19:26:24 executed programs: 0 syzkaller login: [ 32.857481] kasan: CONFIG_KASAN_INLINE enabled [ 32.858275] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 32.859455] general protection fault: 0000 [#1] SMP KASAN [ 32.860190] Dumping ftrace buffer: [ 32.860668] (ftrace buffer empty) [ 32.861164] Modules linked in: [ 32.861597] CPU: 1 PID: 3096 Comm: syz-executor0 Not tainted 4.15.0-rc1+ #113 [ 32.862565] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.863795] task: 00000000dad261da task.stack: 000000008f151592 [ 32.864600] RIP: 0010:sidtab_search_core+0x6a/0x320 [ 32.865272] RSP: 0018:ffff8801cb987878 EFLAGS: 00010202 [ 32.865981] RAX: dffffc0000000000 RBX: 0000000000000008 RCX: ffffffff82207ffd [ 32.866933] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffffffff874c5180 [ 32.867910] RBP: ffff8801cb9878a8 R08: 0000000000000003 R09: 1ffffffff0d6ab33 [ 32.868861] R10: 0000000000000000 R11: ffffffff87489d60 R12: 0000000000000001 [ 32.869814] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 32.870831] FS: 0000000000000000(0000) GS:ffff8801db500000(0063) knlGS:00000000f7f48b40 [ 32.871932] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 32.872707] CR2: 00000000080e8e3c CR3: 00000001cb42c000 CR4: 00000000001406e0 [ 32.873671] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 32.874623] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 32.875572] Call Trace: [ 32.875961] sidtab_search+0x1f/0x30 [ 32.876462] security_bounded_transition+0xa8/0x4d0 [ 32.877128] ? security_validate_transition+0x60/0x60 [ 32.879134] ? security_prepare_creds+0x89/0xb0 [ 32.883771] ? prepare_creds+0x2ba/0x360 [ 32.887798] ? abort_creds+0x130/0x130 [ 32.891657] selinux_setprocattr+0x8d0/0xb50 [ 32.896037] ? ptrace_parent_sid+0x540/0x540 [ 32.900415] security_setprocattr+0x85/0xc0 [ 32.904707] proc_pid_attr_write+0x1e6/0x280 [ 32.909084] ? proc_task_getattr+0x180/0x180 [ 32.913460] __vfs_write+0xef/0x970 [ 32.917054] ? lock_acquire+0x1d5/0x580 [ 32.920995] ? vfs_write+0x410/0x510 [ 32.924686] ? kernel_read+0x120/0x120 [ 32.928540] ? __lock_is_held+0xbc/0x140 [ 32.932575] ? rcu_read_lock_sched_held+0x108/0x120 [ 32.937570] ? rcu_sync_lockdep_assert+0x6d/0xb0 [ 32.942293] ? __sb_start_write+0x203/0x290 [ 32.946582] vfs_write+0x18f/0x510 [ 32.950093] SyS_write+0xef/0x220 [ 32.953514] ? SyS_read+0x220/0x220 [ 32.957111] ? do_fast_syscall_32+0x156/0xf9d [ 32.961574] ? SyS_read+0x220/0x220 [ 32.965168] do_fast_syscall_32+0x3ee/0xf9d [ 32.969459] ? do_int80_syscall_32+0x9d0/0x9d0 [ 32.974011] ? lockdep_sys_exit+0x47/0xf0 [ 32.978137] ? syscall_return_slowpath+0x2ad/0x550 [ 32.983035] ? sysret32_from_system_call+0x5/0x3b [ 32.987854] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 32.992665] entry_SYSENTER_compat+0x51/0x60 [ 32.997040] RIP: 0023:0xf7f4cc79 [ 33.000369] RSP: 002b:00000000f7f4808c EFLAGS: 00000296 ORIG_RAX: 0000000000000004 [ 33.008044] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000002031fff9 [ 33.015279] RDX: 0000000000000008 RSI: 0000000000000000 RDI: 0000000000000000 [ 33.022514] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 33.029757] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 33.036997] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 33.044250] 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 [ 33.063320] RIP: sidtab_search_core+0x6a/0x320 RSP: ffff8801cb987878 [ 33.069878] ---[ end trace 9316c27615a10e1b ]--- [ 33.074638] Kernel panic - not syncing: Fatal exception [ 33.080377] Dumping ftrace buffer: [ 33.083893] (ftrace buffer empty) [ 33.087569] Kernel Offset: disabled [ 33.091162] Rebooting in 86400 seconds..