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-6,10.128.15.225' (ECDSA) to the list of known hosts. 2017/12/03 09:31:29 parsed 1 programs 2017/12/03 09:31:29 executed programs: 0 syzkaller login: [ 34.935168] kasan: CONFIG_KASAN_INLINE enabled [ 34.935952] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 34.937229] general protection fault: 0000 [#1] SMP KASAN [ 34.937969] Dumping ftrace buffer: [ 34.938574] (ftrace buffer empty) [ 34.939069] Modules linked in: [ 34.939501] CPU: 0 PID: 3094 Comm: syz-executor0 Not tainted 4.15.0-rc1-mm1+ #29 [ 34.940487] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.941716] task: 0000000022909973 task.stack: 00000000a2a8a51d [ 34.942517] RIP: 0010:sidtab_search_core+0x6a/0x320 [ 34.943180] RSP: 0018:ffff8801cbd57488 EFLAGS: 00010202 [ 34.943905] RAX: dffffc0000000000 RBX: 0000000000000008 RCX: ffffffff8220ee2d [ 34.944856] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffffffff874c81c0 [ 34.945806] RBP: ffff8801cbd574b8 R08: 0000000000000001 R09: 1ffffffff0d6b13a [ 34.946757] R10: 0000000000000000 R11: ffffffff8748cda0 R12: 0000000000000001 [ 34.947718] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 34.948670] FS: 00007ff255e7b700(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 34.949744] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 34.950517] CR2: 00000000004d5638 CR3: 00000001cc8bb000 CR4: 00000000001406f0 [ 34.951490] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 34.952493] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 34.953446] Call Trace: [ 34.953801] sidtab_search+0x1f/0x30 [ 34.954302] security_bounded_transition+0xa8/0x4d0 [ 34.954993] ? security_validate_transition+0x60/0x60 [ 34.955693] ? security_prepare_creds+0x89/0xb0 [ 34.960327] ? prepare_creds+0x2ba/0x360 [ 34.964353] ? abort_creds+0x130/0x130 [ 34.968208] ? check_stack_object+0x68/0x140 [ 34.972588] selinux_setprocattr+0x8d0/0xb50 [ 34.976967] ? ptrace_parent_sid+0x540/0x540 [ 34.981343] ? __kmalloc_track_caller+0x46d/0x760 [ 34.986157] security_setprocattr+0x85/0xc0 [ 34.990455] proc_pid_attr_write+0x1e6/0x280 [ 34.994830] ? proc_task_getattr+0x180/0x180 [ 34.999203] __vfs_write+0xef/0x970 [ 35.002799] ? trace_hardirqs_on+0xd/0x10 [ 35.006913] ? kernel_read+0x120/0x120 [ 35.010766] ? __lock_is_held+0xbc/0x140 [ 35.014798] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 35.020664] ? save_stack+0xa3/0xd0 [ 35.024259] ? rcu_note_context_switch+0x710/0x710 [ 35.029156] __kernel_write+0xfe/0x350 [ 35.033013] write_pipe_buf+0x175/0x220 [ 35.036953] ? default_file_splice_read+0xae0/0xae0 [ 35.041932] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 35.047780] ? splice_from_pipe_next.part.9+0x22e/0x2f0 [ 35.053111] __splice_from_pipe+0x328/0x730 [ 35.057399] ? default_file_splice_read+0xae0/0xae0 [ 35.062388] splice_from_pipe+0x1e9/0x330 [ 35.066502] ? default_file_splice_read+0xae0/0xae0 [ 35.071480] ? splice_shrink_spd+0xb0/0xb0 [ 35.075686] default_file_splice_write+0x40/0x90 [ 35.080424] ? generic_splice_sendpage+0x50/0x50 [ 35.085145] direct_splice_actor+0x125/0x180 [ 35.089521] splice_direct_to_actor+0x2c1/0x820 [ 35.094155] ? _cond_resched+0x14/0x30 [ 35.098007] ? generic_pipe_buf_nosteal+0x10/0x10 [ 35.102824] ? do_splice_to+0x170/0x170 [ 35.106764] ? security_file_permission+0x89/0x1f0 [ 35.111659] ? rw_verify_area+0xe5/0x2b0 [ 35.115694] do_splice_direct+0x2a7/0x3d0 [ 35.119808] ? splice_direct_to_actor+0x820/0x820 [ 35.124618] ? rcu_sync_lockdep_assert+0x6d/0xb0 [ 35.129339] ? __sb_start_write+0x203/0x290 [ 35.133624] do_sendfile+0x5d5/0xe90 [ 35.137307] ? do_compat_pwritev64+0x100/0x100 [ 35.141854] ? __might_sleep+0x95/0x190 [ 35.145796] ? kasan_check_write+0x14/0x20 [ 35.149994] ? _copy_from_user+0x99/0x110 [ 35.154117] SyS_sendfile64+0xbd/0x160 [ 35.157968] ? SyS_sendfile+0x1a0/0x1a0 [ 35.161906] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 35.166889] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 35.171614] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 35.176333] RIP: 0033:0x4529d9 [ 35.179496] RSP: 002b:00007ff255e7ac58 EFLAGS: 00000212 ORIG_RAX: 0000000000000028 [ 35.187168] RAX: ffffffffffffffda RBX: 00007ff255e7a950 RCX: 00000000004529d9 [ 35.194405] RDX: 0000000020014000 RSI: 0000000000000000 RDI: 0000000000000000 [ 35.201639] RBP: 00007ff255e7a940 R08: 0000000000000000 R09: 0000000000000000 [ 35.208901] R10: 1000000800000008 R11: 0000000000000212 R12: 00000000004b7354 [ 35.216137] R13: 00007ff255e7aac8 R14: 00000000004b7366 R15: 0000000000000000 [ 35.223381] 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 [ 35.242454] RIP: sidtab_search_core+0x6a/0x320 RSP: ffff8801cbd57488 [ 35.248953] ---[ end trace e744bb368793d636 ]--- [ 35.253691] Kernel panic - not syncing: Fatal exception [ 35.259337] Dumping ftrace buffer: [ 35.262848] (ftrace buffer empty) [ 35.266523] Kernel Offset: disabled [ 35.270115] Rebooting in 86400 seconds..