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-4,10.128.15.207' (ECDSA) to the list of known hosts. 2017/12/03 04:25:03 parsed 1 programs 2017/12/03 04:25:03 executed programs: 0 syzkaller login: [ 41.765170] kasan: CONFIG_KASAN_INLINE enabled [ 41.765862] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 41.766838] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 41.767660] Dumping ftrace buffer: [ 41.768132] (ftrace buffer empty) [ 41.768625] Modules linked in: [ 41.769089] CPU: 0 PID: 3284 Comm: syz-executor0 Not tainted 4.9.66-gb763480 #103 [ 41.770100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.771381] task: ffff8801ce584800 task.stack: ffff8801cee68000 [ 41.772175] RIP: 0010:[] [] sidtab_search_core+0x6a/0x320 [ 41.773354] RSP: 0018:ffff8801cee6fa18 EFLAGS: 00010202 [ 41.774069] RAX: dffffc0000000000 RBX: 0000000000000008 RCX: 1ffff10039dcdf18 [ 41.775018] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffffffff8593e620 [ 41.775986] RBP: ffff8801cee6fa48 R08: ffffffff85393700 R09: ffffffff83a5e040 [ 41.776946] R10: 0000000000000001 R11: ffff8801ce584800 R12: 0000000000000001 [ 41.777894] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8801cc11e720 [ 41.778871] FS: 00007fd71e618700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 41.779942] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.780713] CR2: 00000000004d5638 CR3: 00000001cfd69000 CR4: 00000000001406f0 [ 41.781741] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.782712] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.783660] Stack: [ 41.783956] 0000000000000001 ffffffff8593e620 0000000000000001 0000000000000001 [ 41.785080] 0000000000000001 ffff8801cc11e720 ffff8801cee6fa68 ffffffff81c0587f [ 41.791833] dffffc0000000000 ffff8801cc11e724 ffff8801cee6fb90 ffffffff81c239a2 [ 41.799787] Call Trace: [ 41.802337] [] sidtab_search+0x1f/0x30 [ 41.807839] [] security_bounded_transition+0xb2/0x3a0 [ 41.814641] [] ? security_validate_transition+0x60/0x60 [ 41.821616] [] ? memcpy+0x45/0x50 [ 41.826682] [] ? kmemdup+0x44/0x50 [ 41.831847] [] ? selinux_cred_prepare+0x78/0xa0 [ 41.838130] [] ? current_is_single_threaded+0x85/0x4e0 [ 41.845018] [] ? security_prepare_creds+0x89/0xb0 [ 41.851473] [] selinux_setprocattr+0x8b0/0xa80 [ 41.857671] [] ? ptrace_parent_sid+0x400/0x400 [ 41.863870] [] ? mutex_lock_nested+0x870/0x870 [ 41.870064] [] security_setprocattr+0x8d/0xc0 [ 41.876171] [] proc_pid_attr_write+0x1bd/0x270 [ 41.882369] [] ? proc_coredump_filter_read+0x1e0/0x1e0 [ 41.889263] [] __vfs_write+0x103/0x680 [ 41.894767] [] ? do_iter_readv_writev+0x400/0x400 [ 41.901222] [] ? __lock_is_held+0xa1/0xf0 [ 41.906982] [] ? __lock_is_held+0xa1/0xf0 [ 41.912745] [] ? rcu_read_lock_sched_held+0x103/0x120 [ 41.919547] [] ? rcu_sync_lockdep_assert+0x6d/0xb0 [ 41.926087] [] ? __sb_start_write+0x14a/0x310 [ 41.932222] [] vfs_write+0x189/0x530 [ 41.937547] [] SyS_write+0xd9/0x1b0 [ 41.942785] [] ? SyS_read+0x1b0/0x1b0 [ 41.948199] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 41.955000] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 41.961541] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 41.968079] 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 [ 41.994350] RIP [] sidtab_search_core+0x6a/0x320 [ 42.000832] RSP [ 42.004483] ---[ end trace 3140ee503e0982b2 ]--- [ 42.009220] Kernel panic - not syncing: Fatal exception [ 42.014577] Dumping ftrace buffer: [ 42.018081] (ftrace buffer empty) [ 42.021754] Kernel Offset: disabled [ 42.025346] Rebooting in 86400 seconds..