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-3,10.128.15.198' (ECDSA) to the list of known hosts. 2017/12/07 13:27:12 parsed 1 programs 2017/12/07 13:27:12 executed programs: 0 syzkaller login: [ 27.588798] IPVS: Creating netns size=2536 id=1 [ 27.619965] kasan: CONFIG_KASAN_INLINE enabled [ 27.624574] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 27.631922] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 27.638123] Dumping ftrace buffer: [ 27.641628] (ftrace buffer empty) [ 27.645305] Modules linked in: [ 27.648575] CPU: 1 PID: 3284 Comm: syz-executor0 Not tainted 4.9.67-gf26d3c7 #106 [ 27.656166] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.665485] task: ffff8801ce709800 task.stack: ffff8801d8a50000 [ 27.671502] RIP: 0010:[] [] sidtab_search_core+0x6a/0x320 [ 27.680333] RSP: 0018:ffff8801d8a57758 EFLAGS: 00010202 [ 27.685744] RAX: dffffc0000000000 RBX: 0000000000000008 RCX: 1ffff1003b14aec0 [ 27.692976] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffffffff8593e620 [ 27.700208] RBP: ffff8801d8a57788 R08: ffffffff85390610 R09: ffffffff83a5e040 [ 27.707440] R10: 0000000000000001 R11: ffff8801ce709800 R12: 0000000000000001 [ 27.714672] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8801ce409990 [ 27.721906] FS: 00007fc81a014700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 27.730103] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.735949] CR2: 00007fc819ff2db8 CR3: 00000001d1464000 CR4: 00000000001406e0 [ 27.743182] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.750420] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.757653] Stack: [ 27.759765] 0000000000000001 ffffffff8593e620 0000000000000001 0000000000000001 [ 27.767716] 0000000000000001 ffff8801ce409990 ffff8801d8a577a8 ffffffff81c0582f [ 27.775659] dffffc0000000000 ffff8801ce409994 ffff8801d8a578d0 ffffffff81c23952 [ 27.783622] Call Trace: [ 27.786175] [] sidtab_search+0x1f/0x30 [ 27.791678] [] security_bounded_transition+0xb2/0x3a0 [ 27.798481] [] ? security_validate_transition+0x60/0x60 [ 27.805458] [] ? memcpy+0x45/0x50 [ 27.810525] [] ? kmemdup+0x44/0x50 [ 27.815679] [] ? selinux_cred_prepare+0x78/0xa0 [ 27.821961] [] ? current_is_single_threaded+0x85/0x4e0 [ 27.828850] [] ? security_prepare_creds+0x89/0xb0 [ 27.835304] [] selinux_setprocattr+0x8b0/0xa80 [ 27.841497] [] ? ptrace_parent_sid+0x400/0x400 [ 27.847726] [] ? mutex_lock_nested+0x870/0x870 [ 27.853925] [] security_setprocattr+0x8d/0xc0 [ 27.860032] [] proc_pid_attr_write+0x1bd/0x270 [ 27.866226] [] ? proc_coredump_filter_read+0x1e0/0x1e0 [ 27.873114] [] __vfs_write+0x103/0x680 [ 27.878613] [] ? do_iter_readv_writev+0x400/0x400 [ 27.885067] [] ? mutex_lock_nested+0x56f/0x870 [ 27.891263] [] ? pipe_wait+0x154/0x1c0 [ 27.896768] [] ? finish_task_switch+0x1c1/0x630 [ 27.903051] [] ? __schedule+0x64d/0x1ba0 [ 27.908729] [] ? __lock_is_held+0xa1/0xf0 [ 27.914489] [] __kernel_write+0xf0/0x340 [ 27.920164] [] ? __might_sleep+0x95/0x1a0 [ 27.925926] [] write_pipe_buf+0x159/0x1f0 [ 27.931685] [] ? __lock_is_held+0xa1/0xf0 [ 27.937447] [] ? default_file_splice_read+0x7a0/0x7a0 [ 27.944248] [] ? splice_from_pipe_next.part.10+0x22e/0x2f0 [ 27.951493] [] __splice_from_pipe+0x323/0x730 [ 27.957600] [] ? default_file_splice_read+0x7a0/0x7a0 [ 27.964401] [] splice_from_pipe+0xf9/0x160 [ 27.970247] [] ? default_file_splice_read+0x7a0/0x7a0 [ 27.977048] [] ? splice_shrink_spd+0xb0/0xb0 [ 27.983070] [] default_file_splice_write+0x40/0x90 [ 27.989612] [] ? generic_splice_sendpage+0x50/0x50 [ 27.996152] [] SyS_splice+0x7bd/0x1520 [ 28.001651] [] ? SyS_futex+0x22e/0x2d0 [ 28.007152] [] ? compat_SyS_vmsplice+0x240/0x240 [ 28.013518] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 28.020319] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 28.026863] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 28.033399] 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 [ 28.059615] RIP [] sidtab_search_core+0x6a/0x320 [ 28.066097] RSP [ 28.069741] ---[ end trace bec3abaadd0ddbea ]--- [ 28.074467] Kernel panic - not syncing: Fatal exception [ 28.079820] Dumping ftrace buffer: [ 28.083321] (ftrace buffer empty) [ 28.086994] Kernel Offset: disabled [ 28.090586] Rebooting in 86400 seconds..