[....] Starting enhanced syslogd: rsyslogd[ 12.691529] audit: type=1400 audit(1512670992.131:5): avc: denied { syslog } for pid=2999 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 35.741460] audit: type=1400 audit(1512671015.181:6): avc: denied { map } for pid=3144 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added 'ci-upstream-kasan-gce-386-0,10.128.0.22' (ECDSA) to the list of known hosts. [ 41.807381] audit: type=1400 audit(1512671021.247:7): avc: denied { map } for pid=3156 comm="syz-execprog" path="/root/syz-execprog" dev="sda1" ino=16479 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 2017/12/07 18:23:41 parsed 1 programs 2017/12/07 18:23:41 executed programs: 0 [ 42.269082] audit: type=1400 audit(1512671021.708:8): avc: denied { map } for pid=3156 comm="syz-execprog" path="/root/syzkaller-shm614286168" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1 [ 42.351288] WARNING: CPU: 1 PID: 3165 at arch/x86/kvm/x86.c:8256 __x86_set_memory_region+0x56e/0x7a0 [ 42.360616] Kernel panic - not syncing: panic_on_warn set ... [ 42.360616] [ 42.367961] CPU: 1 PID: 3165 Comm: syz-executor0 Not tainted 4.15.0-rc2+ #122 [ 42.375208] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.384537] Call Trace: [ 42.387106] dump_stack+0x194/0x257 [ 42.390718] ? arch_local_irq_restore+0x53/0x53 [ 42.395369] ? vsnprintf+0x1ed/0x1900 [ 42.399153] panic+0x1e4/0x41c [ 42.402322] ? refcount_error_report+0x214/0x214 [ 42.407050] ? show_regs_print_info+0x18/0x18 [ 42.411527] ? __warn+0x1c1/0x200 [ 42.414963] ? __x86_set_memory_region+0x56e/0x7a0 [ 42.419868] __warn+0x1dc/0x200 [ 42.423122] ? __x86_set_memory_region+0x56e/0x7a0 [ 42.428032] report_bug+0x211/0x2d0 [ 42.431641] fixup_bug.part.11+0x37/0x80 [ 42.435679] do_error_trap+0x2d7/0x3e0 [ 42.439548] ? math_error+0x400/0x400 [ 42.443326] ? __might_sleep+0x95/0x190 [ 42.447284] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.452106] do_invalid_op+0x1b/0x20 [ 42.455797] invalid_op+0x18/0x20 [ 42.459223] RIP: 0010:__x86_set_memory_region+0x56e/0x7a0 [ 42.464732] RSP: 0018:ffff8801d02f75e0 EFLAGS: 00010293 [ 42.470077] RAX: ffff8801c4bba340 RBX: ffff8801d02f76e8 RCX: ffffffff810b566e [ 42.477336] RDX: 0000000000000000 RSI: ffff8801d02f7568 RDI: ffff8801c48332c0 [ 42.484584] RBP: ffff8801d02f7710 R08: ffff8801d02f6f90 R09: 1ffff1003a05ee6f [ 42.491827] R10: ffff8801c4bba340 R11: 0000000000000001 R12: ffff8801d02f76a8 [ 42.499081] R13: 1ffff1003a05eec1 R14: ffff8801c4be0140 R15: 0000000000000000 [ 42.506342] ? __x86_set_memory_region+0x56e/0x7a0 [ 42.511256] ? msr_io+0x3b0/0x3b0 [ 42.514698] ? irq_matrix_allocated+0x80/0x80 [ 42.519169] ? synchronize_srcu+0x3c5/0x570 [ 42.523479] x86_set_memory_region+0x3e/0x60 [ 42.527865] kvm_arch_destroy_vm+0x7d5/0x990 [ 42.532250] ? kvm_arch_sync_events+0x30/0x30 [ 42.536721] ? mmu_notifier_unregister+0x433/0x5d0 [ 42.541628] ? __mmu_notifier_register+0x30/0x30 [ 42.546360] ? __free_pages+0x107/0x150 [ 42.550309] ? free_unref_page+0x9d0/0x9d0 [ 42.554522] ? quarantine_put+0xeb/0x190 [ 42.558557] ? kfree+0xe4/0x250 [ 42.561811] ? kvm_put_kvm+0x614/0xdf0 [ 42.565675] ? free_pages+0x51/0x90 [ 42.569279] kvm_put_kvm+0x695/0xdf0 [ 42.572974] ? kvm_clear_guest+0xb0/0xb0 [ 42.577011] ? lock_downgrade+0x980/0x980 [ 42.581150] ? do_raw_spin_trylock+0x190/0x190 [ 42.585710] ? _raw_spin_unlock_irq+0x27/0x70 [ 42.590186] ? kvm_irqfd_release+0xdd/0x120 [ 42.594481] ? kvm_irqfd_release+0xdd/0x120 [ 42.598779] ? kvm_put_kvm+0xdf0/0xdf0 [ 42.602638] kvm_vm_release+0x42/0x50 [ 42.606413] __fput+0x333/0x7f0 [ 42.609672] ? fput+0x140/0x140 [ 42.612927] ? _raw_spin_unlock_irq+0x27/0x70 [ 42.617408] ____fput+0x15/0x20 [ 42.620669] task_work_run+0x199/0x270 [ 42.624536] ? task_work_cancel+0x210/0x210 [ 42.628842] ? exit_to_usermode_loop+0x8c/0x310 [ 42.633491] exit_to_usermode_loop+0x296/0x310 [ 42.638048] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 42.643558] ? do_fast_syscall_32+0x156/0xf9d [ 42.648032] do_fast_syscall_32+0xbfd/0xf9d [ 42.652330] ? do_int80_syscall_32+0x9d0/0x9d0 [ 42.656886] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 42.661624] ? lockdep_sys_exit+0x47/0xf0 [ 42.665744] ? syscall_return_slowpath+0x2ad/0x550 [ 42.670656] ? sysret32_from_system_call+0x5/0x3b [ 42.675475] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.680298] entry_SYSENTER_compat+0x51/0x60 [ 42.684699] RIP: 0023:0xf7f50c79 [ 42.688037] RSP: 002b:00000000ffa18a4c EFLAGS: 00000292 ORIG_RAX: 000000000000014a [ 42.695721] RAX: 0000000000000003 RBX: 0000000000000000 RCX: 0000000000000003 [ 42.702964] RDX: 0000000000080000 RSI: 0000000000000000 RDI: 0000000000000000 [ 42.710208] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 42.717450] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 42.724692] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 42.732196] Dumping ftrace buffer: [ 42.735793] (ftrace buffer empty) [ 42.739483] Kernel Offset: disabled [ 42.743094] Rebooting in 86400 seconds..