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-next-kasan-gce-2,10.128.0.38' (ECDSA) to the list of known hosts. 2017/08/25 16:07:19 parsed 1 programs 2017/08/25 16:07:19 executed programs: 0 syzkaller login: [ 44.138085] kasan: CONFIG_KASAN_INLINE enabled [ 44.142742] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 44.150252] general protection fault: 0000 [#1] SMP KASAN [ 44.155762] Dumping ftrace buffer: [ 44.159264] (ftrace buffer empty) [ 44.162939] Modules linked in: [ 44.166129] CPU: 1 PID: 4215 Comm: syz-executor4 Not tainted 4.13.0-rc6-next-20170825+ #9 [ 44.174411] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.183745] task: ffff8801c81d80c0 task.stack: ffff8801c7c38000 [ 44.189773] RIP: 0010:SyS_bpf+0xd18/0x5170 [ 44.193972] RSP: 0018:ffff8801c7c3f7c8 EFLAGS: 00010206 [ 44.199301] RAX: dffffc0000000000 RBX: 000000000000000f RCX: 0000000000000000 [ 44.206535] RDX: 0000000000000006 RSI: 0000000000000001 RDI: ffffffff84ee4c18 [ 44.213771] RBP: ffff8801c7c3ff48 R08: 0000000000000050 R09: 0000000000000000 [ 44.221005] R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff10038f87f00 [ 44.228241] R13: ffffffff84eeb880 R14: 0000000000000000 R15: 00000000203c0fec [ 44.235477] FS: 00007f8ee3e82700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 44.243670] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.249517] CR2: 00000000203c0fec CR3: 00000001c8b2b000 CR4: 00000000001406e0 [ 44.256759] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 44.263995] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 44.271230] Call Trace: [ 44.273788] ? futex_wait+0x6cf/0xa00 [ 44.277559] ? bpf_prog_get+0x20/0x20 [ 44.281507] ? mark_wake_futex+0xc0/0x1c0 [ 44.285623] ? futex_wait_setup+0x3d0/0x3d0 [ 44.289917] ? wake_up_q+0x8a/0xe0 [ 44.293431] ? drop_futex_key_refs.isra.13+0x63/0xb0 [ 44.298511] ? futex_wake+0x2ca/0x680 [ 44.302287] ? get_futex_key+0x1d50/0x1d50 [ 44.306491] ? perf_event_fork+0x30/0x30 [ 44.310526] ? vma_wants_writenotify+0x51/0x3b0 [ 44.315164] ? do_futex+0x781/0x20a0 [ 44.318844] ? vma_wants_writenotify+0x3b0/0x3b0 [ 44.323573] ? exit_robust_list+0x240/0x240 [ 44.327867] ? lock_downgrade+0x990/0x990 [ 44.331988] ? SyS_brk+0x6f0/0x6f0 [ 44.335505] ? arch_get_unmapped_area+0x750/0x750 [ 44.340316] ? lock_acquire+0x1d5/0x580 [ 44.344257] ? vm_mmap_pgoff+0x198/0x280 [ 44.348284] ? __handle_mm_fault+0x587/0x39c0 [ 44.352749] ? userfaultfd_unmap_complete+0x327/0x510 [ 44.357909] ? userfaultfd_unmap_prep+0x540/0x540 [ 44.362724] ? do_mmap+0x34f/0xd50 [ 44.366233] ? up_write+0x6b/0x120 [ 44.369739] ? up_read+0x40/0x40 [ 44.373072] ? down_write+0x120/0x120 [ 44.376837] ? security_mmap_file+0x14e/0x190 [ 44.381301] ? vm_mmap_pgoff+0x1fc/0x280 [ 44.385330] ? vm_mmap_pgoff+0x13b/0x280 [ 44.389360] ? vma_is_stack_for_current+0xa0/0xa0 [ 44.394174] ? SyS_futex+0x260/0x390 [ 44.397853] ? SyS_futex+0x269/0x390 [ 44.401536] ? do_futex+0x20a0/0x20a0 [ 44.405321] ? entry_SYSCALL_64_fastpath+0x5/0xbe [ 44.410136] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 44.414862] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 44.419589] RIP: 0033:0x4512e9 [ 44.422744] RSP: 002b:00007f8ee3e81c08 EFLAGS: 00000216 ORIG_RAX: 0000000000000141 [ 44.430418] RAX: ffffffffffffffda RBX: 0000000000718000 RCX: 00000000004512e9 [ 44.437659] RDX: 0000000000000014 RSI: 00000000203c0fec RDI: 0000000000000000 [ 44.444898] RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000 [ 44.452147] R10: 0000000000000000 R11: 0000000000000216 R12: 0000000000000000 [ 44.459384] R13: 00007ffeb74b500f R14: 00007f8ee3e829c0 R15: 0000000000000000 [ 44.466629] Code: 00 0f 85 dc 43 00 00 49 8d 46 30 4e 8b 2c ed a0 4b ee 84 48 89 c2 48 89 85 b0 f8 ff ff 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 9d 43 00 00 49 8d 7e 04 48 b8 00 00 00 00 00 [ 44.485714] RIP: SyS_bpf+0xd18/0x5170 RSP: ffff8801c7c3f7c8 [ 44.491464] ---[ end trace b945258cbb394561 ]--- [ 44.496368] Kernel panic - not syncing: Fatal exception [ 44.501778] Dumping ftrace buffer: [ 44.505290] (ftrace buffer empty) [ 44.508968] Kernel Offset: disabled [ 44.512564] Rebooting in 86400 seconds..