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-386-3,10.128.0.7' (ECDSA) to the list of known hosts. 2017/12/01 19:07:22 parsed 1 programs 2017/12/01 19:07:22 executed programs: 0 syzkaller login: [ 26.507789] kasan: CONFIG_KASAN_INLINE enabled [ 26.508631] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 26.509816] general protection fault: 0000 [#1] SMP KASAN [ 26.510551] Dumping ftrace buffer: [ 26.511050] (ftrace buffer empty) [ 26.511547] Modules linked in: [ 26.511995] CPU: 0 PID: 3091 Comm: syz-executor0 Not tainted 4.15.0-rc1+ #113 [ 26.512950] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.514187] task: 0000000044197d3e task.stack: 00000000d7a2094d [ 26.515006] RIP: 0010:sidtab_search_core+0x6a/0x320 [ 26.515672] RSP: 0018:ffff8801cbe87878 EFLAGS: 00010202 [ 26.516382] RAX: dffffc0000000000 RBX: 0000000000000008 RCX: ffffffff82207ffd [ 26.517335] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffffffff874c5180 [ 26.518315] RBP: ffff8801cbe878a8 R08: 0000000000000002 R09: 1ffffffff0d6ab32 [ 26.519317] R10: 0000000000000000 R11: ffffffff87489d60 R12: 0000000000000001 [ 26.520281] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 26.521250] FS: 0000000000000000(0000) GS:ffff8801db400000(0063) knlGS:00000000f7f78b40 [ 26.522341] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 26.523115] CR2: 00000000080e8e3c CR3: 00000001cc587000 CR4: 00000000001406f0 [ 26.524115] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.525130] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.526082] Call Trace: [ 26.526488] sidtab_search+0x1f/0x30 [ 26.527015] security_bounded_transition+0xa8/0x4d0 [ 26.527698] ? security_validate_transition+0x60/0x60 [ 26.531286] ? security_prepare_creds+0x89/0xb0 [ 26.535925] ? prepare_creds+0x2ba/0x360 [ 26.539954] ? abort_creds+0x130/0x130 [ 26.543813] selinux_setprocattr+0x8d0/0xb50 [ 26.548193] ? ptrace_parent_sid+0x540/0x540 [ 26.552573] security_setprocattr+0x85/0xc0 [ 26.556864] proc_pid_attr_write+0x1e6/0x280 [ 26.561240] ? proc_task_getattr+0x180/0x180 [ 26.565614] __vfs_write+0xef/0x970 [ 26.569208] ? lock_acquire+0x1d5/0x580 [ 26.573148] ? vfs_write+0x410/0x510 [ 26.576827] ? kernel_read+0x120/0x120 [ 26.580684] ? __lock_is_held+0xbc/0x140 [ 26.584717] ? rcu_read_lock_sched_held+0x108/0x120 [ 26.589700] ? rcu_sync_lockdep_assert+0x6d/0xb0 [ 26.594433] ? __sb_start_write+0x203/0x290 [ 26.598721] vfs_write+0x18f/0x510 [ 26.602238] SyS_write+0xef/0x220 [ 26.605661] ? SyS_read+0x220/0x220 [ 26.609257] ? do_fast_syscall_32+0x156/0xf9d [ 26.613718] ? SyS_read+0x220/0x220 [ 26.617311] do_fast_syscall_32+0x3ee/0xf9d [ 26.621603] ? do_int80_syscall_32+0x9d0/0x9d0 [ 26.626152] ? lockdep_sys_exit+0x47/0xf0 [ 26.630266] ? syscall_return_slowpath+0x2ad/0x550 [ 26.635163] ? sysret32_from_system_call+0x5/0x3b [ 26.639991] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 26.644816] entry_SYSENTER_compat+0x51/0x60 [ 26.649191] RIP: 0023:0xf7f7cc79 [ 26.652521] RSP: 002b:00000000f7f7808c EFLAGS: 00000296 ORIG_RAX: 0000000000000004 [ 26.660196] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000020ffcff8 [ 26.667430] RDX: 0000000000000008 RSI: 0000000000000000 RDI: 0000000000000000 [ 26.674668] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 26.682598] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 26.691136] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 26.698379] 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 [ 26.717442] RIP: sidtab_search_core+0x6a/0x320 RSP: ffff8801cbe87878 [ 26.723973] ---[ end trace 8da6be31f2661afc ]--- [ 26.728719] Kernel panic - not syncing: Fatal exception [ 26.734080] Dumping ftrace buffer: [ 26.737585] (ftrace buffer empty) [ 26.741263] Kernel Offset: disabled [ 26.744856] Rebooting in 86400 seconds..