[....] Starting enhanced syslogd: rsyslogd[ 12.389449] audit: type=1400 audit(1516164717.489:5): avc: denied { syslog } for pid=3512 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 mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] 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: [ 18.320107] audit: type=1400 audit(1516164723.419:6): avc: denied { map } for pid=3652 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 '10.128.0.45' (ECDSA) to the list of known hosts. executing program executing program executing program [ 141.932187] audit: type=1400 audit(1516164847.031:7): avc: denied { map } for pid=3669 comm="syzkaller337099" path="/root/syzkaller337099772" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 141.965769] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 157.056158] WARNING: CPU: 1 PID: 5473 at arch/x86/kvm/x86.c:7403 kvm_arch_vcpu_ioctl_run+0x1c7/0x5c80 [ 157.065623] Kernel panic - not syncing: panic_on_warn set ... [ 157.065623] [ 157.072958] CPU: 1 PID: 5473 Comm: syzkaller337099 Not tainted 4.15.0-rc8-next-20180116+ #98 [ 157.081503] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 157.090834] Call Trace: [ 157.093402] dump_stack+0x194/0x257 [ 157.097005] ? arch_local_irq_restore+0x53/0x53 [ 157.101665] ? vsnprintf+0x1ed/0x1900 [ 157.105457] panic+0x1e4/0x41c [ 157.108622] ? refcount_error_report+0x214/0x214 [ 157.113352] ? show_regs_print_info+0x18/0x18 [ 157.117826] ? __warn+0x1c1/0x200 [ 157.121257] ? kvm_arch_vcpu_ioctl_run+0x1c7/0x5c80 [ 157.126242] __warn+0x1dc/0x200 [ 157.129522] ? kvm_arch_vcpu_ioctl_run+0x1c7/0x5c80 [ 157.134522] report_bug+0x211/0x2d0 [ 157.138148] fixup_bug.part.11+0x37/0x80 [ 157.142184] do_error_trap+0x2d7/0x3e0 [ 157.146049] ? math_error+0x400/0x400 [ 157.149825] ? __lock_is_held+0xb6/0x140 [ 157.153878] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 157.158699] do_invalid_op+0x1b/0x20 [ 157.162390] invalid_op+0x22/0x40 [ 157.165817] RIP: 0010:kvm_arch_vcpu_ioctl_run+0x1c7/0x5c80 [ 157.171409] RSP: 0018:ffff8801d88476b0 EFLAGS: 00010293 [ 157.176746] RAX: ffff8801be2466c0 RBX: ffff8801bf0f8000 RCX: ffffffff810dfb37 [ 157.183988] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801d8e01c60 [ 157.191231] RBP: ffff8801d8847a40 R08: 1ffff1003b1c0e23 R09: 0000000000000001 [ 157.198483] R10: ffff8801d8847690 R11: 0000000000000004 R12: 0000000000000000 [ 157.207115] R13: ffff8801d3038a00 R14: ffff8801d8e01a40 R15: ffff8801d8e01a40 [ 157.214378] ? kvm_arch_vcpu_ioctl_run+0x1c7/0x5c80 [ 157.219375] ? mutex_lock_io_nested+0x1900/0x1900 [ 157.224189] ? futex_wait_setup+0x22e/0x3d0 [ 157.228491] ? futex_wake+0x680/0x680 [ 157.232268] ? kvm_arch_vcpu_runnable+0x560/0x560 [ 157.237084] ? __lock_acquire+0x664/0x3e00 [ 157.241301] ? mmdrop+0x18/0x30 [ 157.244556] ? drop_futex_key_refs.isra.12+0x63/0xa0 [ 157.249631] ? futex_wait+0x6a9/0x9a0 [ 157.253417] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 157.258585] ? __pmd_alloc+0x4e0/0x4e0 [ 157.262457] ? mmdrop+0x18/0x30 [ 157.265710] ? drop_futex_key_refs.isra.12+0x63/0xa0 [ 157.270795] ? futex_wake+0x2ca/0x680 [ 157.274567] ? __mutex_unlock_slowpath+0xe9/0xac0 [ 157.279398] ? get_futex_key+0x1d50/0x1d50 [ 157.283622] ? check_noncircular+0x20/0x20 [ 157.287848] kvm_vcpu_ioctl+0x6f1/0xff0 [ 157.291796] ? kvm_vcpu_ioctl+0x6f1/0xff0 [ 157.295918] ? kvm_vcpu_fault+0x520/0x520 [ 157.300047] ? find_held_lock+0x35/0x1d0 [ 157.304096] ? __fget+0x333/0x570 [ 157.307530] ? lock_downgrade+0x980/0x980 [ 157.311654] ? lock_release+0xa40/0xa40 [ 157.315611] ? __lock_is_held+0xb6/0x140 [ 157.319654] ? __fget+0x35c/0x570 [ 157.323088] ? iterate_fd+0x3f0/0x3f0 [ 157.326866] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 157.331601] ? retint_kernel+0x10/0x10 [ 157.335465] ? kvm_vcpu_fault+0x520/0x520 [ 157.339586] do_vfs_ioctl+0x1b1/0x1520 [ 157.343455] ? ioctl_preallocate+0x2b0/0x2b0 [ 157.347837] ? selinux_capable+0x40/0x40 [ 157.351874] ? SyS_futex+0x269/0x390 [ 157.355571] ? security_file_ioctl+0x89/0xb0 [ 157.359954] SyS_ioctl+0x8f/0xc0 [ 157.363299] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 157.368030] RIP: 0033:0x445cb9 [ 157.371195] RSP: 002b:00007f04c229eda8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 157.378873] RAX: ffffffffffffffda RBX: 00000000006dbc24 RCX: 0000000000445cb9 [ 157.386115] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000006 [ 157.393356] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 157.400598] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc20 [ 157.407849] R13: 6d766b2f7665642f R14: 00007f04c229f9c0 R15: 000000000000000a [ 157.415661] Dumping ftrace buffer: [ 157.419262] (ftrace buffer empty) [ 157.422944] Kernel Offset: disabled [ 157.426545] Rebooting in 86400 seconds..