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-7,10.128.15.217' (ECDSA) to the list of known hosts. 2017/12/01 18:18:18 parsed 1 programs 2017/12/01 18:18:18 executed programs: 0 syzkaller login: [ 28.452250] kasan: CONFIG_KASAN_INLINE enabled [ 28.453032] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 28.454024] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 28.454869] Dumping ftrace buffer: [ 28.455404] (ftrace buffer empty) [ 28.455967] Modules linked in: [ 28.456521] CPU: 1 PID: 3274 Comm: syz-executor0 Not tainted 4.9.66-g38884cc #102 [ 28.457606] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.458863] task: ffff8801d07e4800 task.stack: ffff8801d23a8000 [ 28.459659] RIP: 0010:[] [] sidtab_search_core+0x6a/0x320 [ 28.460850] RSP: 0018:ffff8801d23afa18 EFLAGS: 00010202 [ 28.461599] RAX: dffffc0000000000 RBX: 0000000000000008 RCX: 1ffff1003a475f18 [ 28.462745] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffffffff8593e620 [ 28.463727] RBP: ffff8801d23afa48 R08: ffffffff85392e90 R09: ffffffff83a5e040 [ 28.464680] R10: 0000000000000001 R11: ffff8801d07e4800 R12: 0000000000000001 [ 28.465770] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8801d961bf90 [ 28.466845] FS: 00007ffa4d0e2700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 28.467938] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.468713] CR2: 00000000004d5638 CR3: 00000001ce5c0000 CR4: 00000000001406e0 [ 28.469670] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 28.470632] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 28.471598] Stack: [ 28.471895] 0000000000000001 ffffffff8593e620 0000000000000001 0000000000000001 [ 28.476042] 0000000000000001 ffff8801d961bf90 ffff8801d23afa68 ffffffff81c0556f [ 28.483992] dffffc0000000000 ffff8801d961bf94 ffff8801d23afb90 ffffffff81c23692 [ 28.491938] Call Trace: [ 28.494492] [] sidtab_search+0x1f/0x30 [ 28.499993] [] security_bounded_transition+0xb2/0x3a0 [ 28.506797] [] ? security_validate_transition+0x60/0x60 [ 28.514037] [] ? memcpy+0x45/0x50 [ 28.519106] [] ? kmemdup+0x44/0x50 [ 28.524260] [] ? selinux_cred_prepare+0x78/0xa0 [ 28.530545] [] ? current_is_single_threaded+0x85/0x4e0 [ 28.537436] [] ? security_prepare_creds+0x89/0xb0 [ 28.543894] [] selinux_setprocattr+0x8b0/0xa80 [ 28.550088] [] ? ptrace_parent_sid+0x400/0x400 [ 28.556284] [] ? mutex_lock_nested+0x870/0x870 [ 28.562492] [] security_setprocattr+0x8d/0xc0 [ 28.568603] [] proc_pid_attr_write+0x1bd/0x270 [ 28.574801] [] ? proc_coredump_filter_read+0x1e0/0x1e0 [ 28.581693] [] __vfs_write+0x103/0x680 [ 28.587192] [] ? do_iter_readv_writev+0x400/0x400 [ 28.593649] [] ? __lock_is_held+0xa1/0xf0 [ 28.599409] [] ? __lock_is_held+0xa1/0xf0 [ 28.605170] [] ? rcu_read_lock_sched_held+0x103/0x120 [ 28.611972] [] ? rcu_sync_lockdep_assert+0x6d/0xb0 [ 28.618515] [] ? __sb_start_write+0x14a/0x310 [ 28.624622] [] vfs_write+0x189/0x530 [ 28.631512] [] SyS_write+0xd9/0x1b0 [ 28.638529] [] ? SyS_read+0x1b0/0x1b0 [ 28.644291] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 28.651096] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 28.657652] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 28.664190] 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 [ 28.690620] RIP [] sidtab_search_core+0x6a/0x320 [ 28.697108] RSP [ 28.700777] ---[ end trace ec320b96093ca79c ]--- [ 28.705504] Kernel panic - not syncing: Fatal exception [ 28.710856] Dumping ftrace buffer: [ 28.714360] (ftrace buffer empty) [ 28.718035] Kernel Offset: disabled [ 28.721626] Rebooting in 86400 seconds..