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-mmots-kasan-gce-4,10.128.15.196' (ECDSA) to the list of known hosts. 2017/12/03 08:17:28 parsed 1 programs 2017/12/03 08:17:28 executed programs: 0 syzkaller login: [ 26.467516] kasan: CONFIG_KASAN_INLINE enabled [ 26.468316] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 26.469572] general protection fault: 0000 [#1] SMP KASAN [ 26.470312] Dumping ftrace buffer: [ 26.470788] (ftrace buffer empty) [ 26.471303] Modules linked in: [ 26.471739] CPU: 0 PID: 3095 Comm: syz-executor0 Not tainted 4.15.0-rc1-mm1+ #29 [ 26.472724] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.473958] task: 000000007558e984 task.stack: 000000005514f6dd [ 26.474764] RIP: 0010:sidtab_search_core+0x6a/0x320 [ 26.475426] RSP: 0018:ffff8801cc41f488 EFLAGS: 00010202 [ 26.476147] RAX: dffffc0000000000 RBX: 0000000000000008 RCX: ffffffff8220ee2d [ 26.477099] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffffffff874c81c0 [ 26.478051] RBP: ffff8801cc41f4b8 R08: 0000000000000001 R09: 1ffffffff0d6b13a [ 26.479005] R10: 0000000000000000 R11: ffffffff8748cda0 R12: 0000000000000001 [ 26.479956] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 26.480924] FS: 00007f94a80aa700(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 26.481998] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.482789] CR2: 00000000004d5638 CR3: 00000001ccb74000 CR4: 00000000001406f0 [ 26.483743] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.484695] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.485647] Call Trace: [ 26.486007] sidtab_search+0x1f/0x30 [ 26.486509] security_bounded_transition+0xa8/0x4d0 [ 26.487192] ? security_validate_transition+0x60/0x60 [ 26.489115] ? security_prepare_creds+0x89/0xb0 [ 26.493752] ? prepare_creds+0x2ba/0x360 [ 26.497777] ? abort_creds+0x130/0x130 [ 26.501636] ? check_stack_object+0x68/0x140 [ 26.506015] selinux_setprocattr+0x8d0/0xb50 [ 26.510393] ? ptrace_parent_sid+0x540/0x540 [ 26.514772] ? __kmalloc_track_caller+0x46d/0x760 [ 26.519590] security_setprocattr+0x85/0xc0 [ 26.523894] proc_pid_attr_write+0x1e6/0x280 [ 26.528272] ? proc_task_getattr+0x180/0x180 [ 26.532650] __vfs_write+0xef/0x970 [ 26.536251] ? trace_hardirqs_on+0xd/0x10 [ 26.540366] ? kernel_read+0x120/0x120 [ 26.544222] ? __lock_is_held+0xbc/0x140 [ 26.548269] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 26.554125] ? save_stack+0xa3/0xd0 [ 26.557721] ? rcu_note_context_switch+0x710/0x710 [ 26.562624] __kernel_write+0xfe/0x350 [ 26.566484] write_pipe_buf+0x175/0x220 [ 26.570426] ? default_file_splice_read+0xae0/0xae0 [ 26.575411] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 26.581264] ? splice_from_pipe_next.part.9+0x22e/0x2f0 [ 26.586613] __splice_from_pipe+0x328/0x730 [ 26.590902] ? default_file_splice_read+0xae0/0xae0 [ 26.595901] splice_from_pipe+0x1e9/0x330 [ 26.600027] ? default_file_splice_read+0xae0/0xae0 [ 26.605008] ? splice_shrink_spd+0xb0/0xb0 [ 26.609225] default_file_splice_write+0x40/0x90 [ 26.613946] ? generic_splice_sendpage+0x50/0x50 [ 26.618671] direct_splice_actor+0x125/0x180 [ 26.623046] splice_direct_to_actor+0x2c1/0x820 [ 26.627691] ? _cond_resched+0x14/0x30 [ 26.631548] ? generic_pipe_buf_nosteal+0x10/0x10 [ 26.636361] ? do_splice_to+0x170/0x170 [ 26.640301] ? security_file_permission+0x89/0x1f0 [ 26.645196] ? rw_verify_area+0xe5/0x2b0 [ 26.649225] do_splice_direct+0x2a7/0x3d0 [ 26.653339] ? splice_direct_to_actor+0x820/0x820 [ 26.658148] ? rcu_sync_lockdep_assert+0x6d/0xb0 [ 26.662869] ? __sb_start_write+0x203/0x290 [ 26.667161] do_sendfile+0x5d5/0xe90 [ 26.670846] ? do_compat_pwritev64+0x100/0x100 [ 26.675394] ? __might_sleep+0x95/0x190 [ 26.679338] ? kasan_check_write+0x14/0x20 [ 26.683539] ? _copy_from_user+0x99/0x110 [ 26.687655] SyS_sendfile64+0xbd/0x160 [ 26.691508] ? SyS_sendfile+0x1a0/0x1a0 [ 26.695447] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 26.700428] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 26.705160] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 26.709880] RIP: 0033:0x4529d9 [ 26.713035] RSP: 002b:00007f94a80a9c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000028 [ 26.720717] RAX: ffffffffffffffda RBX: 00007f94a80a9940 RCX: 00000000004529d9 [ 26.727954] RDX: 0000000020014000 RSI: 0000000000000000 RDI: 0000000000000000 [ 26.735198] RBP: 00007f94a80a9930 R08: 0000000000000000 R09: 0000000000000000 [ 26.742438] R10: 1000000800000008 R11: 0000000000000212 R12: 00000000004b7369 [ 26.749675] R13: 00007f94a80a9ab8 R14: 00000000004b7379 R15: 0000000000000000 [ 26.756918] 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 [ 26.775980] RIP: sidtab_search_core+0x6a/0x320 RSP: ffff8801cc41f488 [ 26.782521] ---[ end trace 942ed0702843e7b6 ]--- [ 26.787271] Kernel panic - not syncing: Fatal exception [ 26.792633] Dumping ftrace buffer: [ 26.796140] (ftrace buffer empty) [ 26.799816] Kernel Offset: disabled [ 26.803408] Rebooting in 86400 seconds..