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-android-49-kasan-gce-6,10.128.15.221' (ECDSA) to the list of known hosts. 2017/12/02 02:16:25 parsed 1 programs 2017/12/02 02:16:25 executed programs: 0 syzkaller login: [ 27.865387] kasan: CONFIG_KASAN_INLINE enabled [ 27.866123] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 27.867108] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 27.867928] Dumping ftrace buffer: [ 27.868403] (ftrace buffer empty) [ 27.868897] Modules linked in: [ 27.869366] CPU: 1 PID: 3273 Comm: syz-executor0 Not tainted 4.9.66-gb763480 #103 [ 27.870360] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.871580] task: ffff8801c702c800 task.stack: ffff8801c7d18000 [ 27.872373] RIP: 0010:[] [] sidtab_search_core+0x6a/0x320 [ 27.873558] RSP: 0018:ffff8801c7d1fa18 EFLAGS: 00010202 [ 27.874274] RAX: dffffc0000000000 RBX: 0000000000000008 RCX: 1ffff10038fa3f18 [ 27.875223] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffffffff8593e620 [ 27.876214] RBP: ffff8801c7d1fa48 R08: ffffffff85393040 R09: ffffffff83a5e040 [ 27.877175] R10: 0000000000000001 R11: ffff8801c702c800 R12: 0000000000000001 [ 27.878186] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8801cf0b2000 [ 27.879136] FS: 00007f9ee0301700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 27.880207] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.881006] CR2: 00000000004d5638 CR3: 00000001c724e000 CR4: 00000000001406e0 [ 27.881959] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.882925] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.883892] Stack: [ 27.884202] 0000000000000001 ffffffff8593e620 0000000000000001 0000000000000001 [ 27.885334] 0000000000000001 ffff8801cf0b2000 ffff8801c7d1fa68 ffffffff81c0587f [ 27.890802] dffffc0000000000 ffff8801cf0b2004 ffff8801c7d1fb90 ffffffff81c239a2 [ 27.898752] Call Trace: [ 27.901303] [] sidtab_search+0x1f/0x30 [ 27.906802] [] security_bounded_transition+0xb2/0x3a0 [ 27.913609] [] ? security_validate_transition+0x60/0x60 [ 27.920587] [] ? memcpy+0x45/0x50 [ 27.925657] [] ? kmemdup+0x44/0x50 [ 27.930812] [] ? selinux_cred_prepare+0x78/0xa0 [ 27.937094] [] ? current_is_single_threaded+0x85/0x4e0 [ 27.943984] [] ? security_prepare_creds+0x89/0xb0 [ 27.950446] [] selinux_setprocattr+0x8b0/0xa80 [ 27.956646] [] ? ptrace_parent_sid+0x400/0x400 [ 27.962842] [] ? mutex_lock_nested+0x870/0x870 [ 27.969036] [] security_setprocattr+0x8d/0xc0 [ 27.975143] [] proc_pid_attr_write+0x1bd/0x270 [ 27.981335] [] ? proc_coredump_filter_read+0x1e0/0x1e0 [ 27.988223] [] __vfs_write+0x103/0x680 [ 27.993721] [] ? do_iter_readv_writev+0x400/0x400 [ 28.000176] [] ? __lock_is_held+0xa1/0xf0 [ 28.005937] [] ? __lock_is_held+0xa1/0xf0 [ 28.011698] [] ? rcu_read_lock_sched_held+0x103/0x120 [ 28.018509] [] ? rcu_sync_lockdep_assert+0x6d/0xb0 [ 28.025576] [] ? __sb_start_write+0x14a/0x310 [ 28.031682] [] vfs_write+0x189/0x530 [ 28.037008] [] SyS_write+0xd9/0x1b0 [ 28.042248] [] ? SyS_read+0x1b0/0x1b0 [ 28.047667] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 28.054473] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 28.061025] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 28.067570] Code: ea 03 41 83 e4 7f 80 3c 02 00 0f 85 7d 02 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 33 4d 63 e4 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 [ 28.093842] RIP [] sidtab_search_core+0x6a/0x320 [ 28.100336] RSP [ 28.103982] ---[ end trace e176b16c9c0d03a8 ]--- [ 28.108719] Kernel panic - not syncing: Fatal exception [ 28.114405] Dumping ftrace buffer: [ 28.117912] (ftrace buffer empty) [ 28.121944] Kernel Offset: disabled [ 28.125538] Rebooting in 86400 seconds..