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-kasan-gce-386-2,10.128.0.13' (ECDSA) to the list of known hosts. 2017/12/02 02:42:25 parsed 1 programs 2017/12/02 02:42:25 executed programs: 0 syzkaller login: [ 30.090338] kasan: CONFIG_KASAN_INLINE enabled [ 30.091104] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 30.092245] general protection fault: 0000 [#1] SMP KASAN [ 30.092986] Dumping ftrace buffer: [ 30.093464] (ftrace buffer empty) [ 30.093958] Modules linked in: [ 30.094394] CPU: 1 PID: 3096 Comm: syz-executor0 Not tainted 4.15.0-rc1+ #114 [ 30.095375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.096593] task: 000000009e83bdfa task.stack: 00000000211da14d [ 30.097399] RIP: 0010:sidtab_search_core+0x6a/0x320 [ 30.098062] RSP: 0018:ffff8801cbd972f0 EFLAGS: 00010202 [ 30.098773] RAX: dffffc0000000000 RBX: 0000000000000008 RCX: ffffffff82207ffd [ 30.099724] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffffffff874c5180 [ 30.100678] RBP: ffff8801cbd97320 R08: 0000000000000001 R09: 1ffffffff0d6ab32 [ 30.101670] R10: 0000000000000000 R11: ffffffff87489d60 R12: 0000000000000001 [ 30.102622] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 30.103579] FS: 0000000000000000(0000) GS:ffff8801db500000(0063) knlGS:00000000f7fb3b40 [ 30.104693] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 30.105467] CR2: 00000000080e8e3c CR3: 00000001cb876000 CR4: 00000000001406e0 [ 30.106420] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.107371] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.108324] Call Trace: [ 30.108685] sidtab_search+0x1f/0x30 [ 30.109184] security_bounded_transition+0xa8/0x4d0 [ 30.109849] ? security_validate_transition+0x60/0x60 [ 30.110943] ? security_prepare_creds+0x89/0xb0 [ 30.115584] ? prepare_creds+0x2ba/0x360 [ 30.119612] ? abort_creds+0x130/0x130 [ 30.123471] ? check_stack_object+0x68/0x140 [ 30.127849] selinux_setprocattr+0x8d0/0xb50 [ 30.132227] ? ptrace_parent_sid+0x540/0x540 [ 30.136599] ? __kmalloc_track_caller+0x46d/0x760 [ 30.141411] security_setprocattr+0x85/0xc0 [ 30.145703] proc_pid_attr_write+0x1e6/0x280 [ 30.150083] ? proc_task_getattr+0x180/0x180 [ 30.154455] __vfs_write+0xef/0x970 [ 30.158053] ? trace_hardirqs_on+0xd/0x10 [ 30.162165] ? kernel_read+0x120/0x120 [ 30.166020] ? __lock_is_held+0xbc/0x140 [ 30.170052] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 30.175900] ? save_stack+0xa3/0xd0 [ 30.179495] ? rcu_note_context_switch+0x710/0x710 [ 30.184390] __kernel_write+0xfe/0x350 [ 30.188249] write_pipe_buf+0x175/0x220 [ 30.192186] ? default_file_splice_read+0xae0/0xae0 [ 30.197166] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 30.203013] ? splice_from_pipe_next.part.9+0x22e/0x2f0 [ 30.208345] __splice_from_pipe+0x328/0x730 [ 30.212634] ? default_file_splice_read+0xae0/0xae0 [ 30.217622] splice_from_pipe+0x1e9/0x330 [ 30.221739] ? default_file_splice_read+0xae0/0xae0 [ 30.226719] ? splice_shrink_spd+0xb0/0xb0 [ 30.230929] ? security_file_permission+0x89/0x1f0 [ 30.235826] default_file_splice_write+0x40/0x90 [ 30.240548] ? generic_splice_sendpage+0x50/0x50 [ 30.245268] direct_splice_actor+0x125/0x180 [ 30.249646] splice_direct_to_actor+0x2c1/0x820 [ 30.254280] ? _cond_resched+0x14/0x30 [ 30.258134] ? generic_pipe_buf_nosteal+0x10/0x10 [ 30.262945] ? do_splice_to+0x170/0x170 [ 30.266886] ? security_file_permission+0x89/0x1f0 [ 30.271782] ? rw_verify_area+0xe5/0x2b0 [ 30.275810] do_splice_direct+0x2a7/0x3d0 [ 30.279927] ? splice_direct_to_actor+0x820/0x820 [ 30.284743] ? rcu_sync_lockdep_assert+0x6d/0xb0 [ 30.289467] ? __sb_start_write+0x203/0x290 [ 30.293758] do_sendfile+0x5d5/0xe90 [ 30.297443] ? do_compat_pwritev64+0x100/0x100 [ 30.301992] ? kmem_cache_free+0x249/0x280 [ 30.306198] ? __might_sleep+0x95/0x190 [ 30.310142] compat_SyS_sendfile+0xea/0x1a0 [ 30.314430] ? SyS_sendfile64+0x160/0x160 [ 30.318546] ? do_fast_syscall_32+0x156/0xf9d [ 30.323008] ? SyS_sendfile64+0x160/0x160 [ 30.327120] do_fast_syscall_32+0x3ee/0xf9d [ 30.331412] ? do_int80_syscall_32+0x9d0/0x9d0 [ 30.335963] ? lockdep_sys_exit+0x47/0xf0 [ 30.340076] ? syscall_return_slowpath+0x2ad/0x550 [ 30.344973] ? sysret32_from_system_call+0x5/0x3b [ 30.349783] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.354594] entry_SYSENTER_compat+0x51/0x60 [ 30.358966] RIP: 0023:0xf7fb7c79 [ 30.362296] RSP: 002b:00000000f7fb308c EFLAGS: 00000296 ORIG_RAX: 00000000000000bb [ 30.369968] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000000000 [ 30.377203] RDX: 0000000020014000 RSI: 0000000000000008 RDI: 0000000000000000 [ 30.384438] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 30.391679] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 30.398915] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 30.406170] 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 [ 30.425243] RIP: sidtab_search_core+0x6a/0x320 RSP: ffff8801cbd972f0 [ 30.431774] ---[ end trace 70fa908e9b51cc60 ]--- [ 30.436514] Kernel panic - not syncing: Fatal exception [ 30.441874] Dumping ftrace buffer: [ 30.445381] (ftrace buffer empty) [ 30.449061] Kernel Offset: disabled [ 30.452657] Rebooting in 86400 seconds..