[....] Starting enhanced syslogd: rsyslogd[ 11.809885] audit: type=1400 audit(1512771113.354:5): avc: denied { syslog } for pid=2989 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: [ 23.511620] audit: type=1400 audit(1512771125.056:6): avc: denied { map } for pid=3133 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-mmots-kasan-gce-0,10.128.0.10' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program [ 29.643229] audit: type=1400 audit(1512771131.188:7): avc: denied { map } for pid=3147 comm="syzkaller134994" path="/root/syzkaller134994654" 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 29.687369] 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 [ 30.180356] WARNING: CPU: 1 PID: 3684 at arch/x86/kvm/x86.c:7295 kvm_arch_vcpu_ioctl_run+0x1d4/0x5be0 [ 30.189773] Kernel panic - not syncing: panic_on_warn set ... [ 30.189773] [ 30.197106] CPU: 1 PID: 3684 Comm: syzkaller134994 Not tainted 4.15.0-rc2-mm1+ #39 [ 30.204779] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.214101] Call Trace: [ 30.216659] dump_stack+0x194/0x257 [ 30.220261] ? arch_local_irq_restore+0x53/0x53 [ 30.224909] ? vsnprintf+0x1ed/0x1900 [ 30.228686] panic+0x1e4/0x41c [ 30.231847] ? refcount_error_report+0x214/0x214 [ 30.236571] ? show_regs_print_info+0x18/0x18 [ 30.241043] ? __warn+0x1c1/0x200 [ 30.244476] ? kvm_arch_vcpu_ioctl_run+0x1d4/0x5be0 [ 30.249461] __warn+0x1dc/0x200 [ 30.252714] ? kvm_arch_vcpu_ioctl_run+0x1d4/0x5be0 [ 30.257706] report_bug+0x211/0x2d0 [ 30.261311] fixup_bug.part.11+0x37/0x80 [ 30.265351] do_error_trap+0x2d7/0x3e0 [ 30.269207] ? lock_downgrade+0x980/0x980 [ 30.273328] ? math_error+0x400/0x400 [ 30.277100] ? __lock_is_held+0xbc/0x140 [ 30.281142] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.285966] do_invalid_op+0x1b/0x20 [ 30.289652] invalid_op+0x22/0x40 [ 30.293073] RIP: 0010:kvm_arch_vcpu_ioctl_run+0x1d4/0x5be0 [ 30.298667] RSP: 0018:ffff8801bdcb76b0 EFLAGS: 00010293 [ 30.304007] RAX: ffff8801d8736280 RBX: ffff8801d8ed5000 RCX: ffffffff810dee44 [ 30.311248] RDX: 0000000000000000 RSI: ffffffff863449c0 RDI: ffff8801d93a8e38 [ 30.318486] RBP: ffff8801bdcb7a40 R08: 1ffff10037b96eff R09: 0000000000000001 [ 30.325723] R10: ffff8801bdcb7a58 R11: 0000000000000000 R12: 0000000000000000 [ 30.332964] R13: 1ffff10037b96f72 R14: ffff8801d8a71c00 R15: ffff8801d93a8c00 [ 30.340218] ? kvm_arch_vcpu_ioctl_run+0x1d4/0x5be0 [ 30.345220] ? put_pid+0x176/0x1f0 [ 30.348732] ? save_stack+0xa3/0xd0 [ 30.352333] ? kmem_cache_free+0x77/0x280 [ 30.356450] ? put_pid+0x176/0x1f0 [ 30.359967] ? kvm_vcpu_ioctl+0xd75/0x1010 [ 30.364170] ? kvm_arch_vcpu_runnable+0x560/0x560 [ 30.368983] ? __init_waitqueue_head+0x97/0x140 [ 30.373629] ? wake_up_q+0xe0/0xe0 [ 30.377140] ? __lockdep_init_map+0xe4/0x650 [ 30.381517] ? check_noncircular+0x20/0x20 [ 30.385720] ? print_usage_bug+0x3f0/0x3f0 [ 30.389930] ? __wait_rcu_gp+0x25d/0x420 [ 30.393962] ? rcu_gp_is_normal+0x140/0x140 [ 30.398269] ? __lock_is_held+0xbc/0x140 [ 30.402303] ? put_pid+0x176/0x1f0 [ 30.405814] ? put_pid+0x176/0x1f0 [ 30.409322] ? rcu_read_lock_sched_held+0x108/0x120 [ 30.414311] ? put_pid_ns+0xa6/0xc0 [ 30.417912] ? put_pid+0x183/0x1f0 [ 30.421422] ? task_active_pid_ns+0xd0/0xd0 [ 30.425719] ? __might_sleep+0x95/0x190 [ 30.429670] kvm_vcpu_ioctl+0x64c/0x1010 [ 30.433705] ? kvm_vcpu_ioctl+0x64c/0x1010 [ 30.437913] ? __kvm_gfn_to_hva_cache_init+0xbb0/0xbb0 [ 30.443163] ? find_held_lock+0x39/0x1d0 [ 30.447206] ? lock_downgrade+0x980/0x980 [ 30.451324] ? __fget+0xbb/0x580 [ 30.454665] ? lock_release+0xda0/0xda0 [ 30.458613] ? __lock_is_held+0xbc/0x140 [ 30.462657] ? __fget+0x362/0x580 [ 30.466087] ? iterate_fd+0x3f0/0x3f0 [ 30.469863] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 30.474942] ? __kvm_gfn_to_hva_cache_init+0xbb0/0xbb0 [ 30.480188] do_vfs_ioctl+0x1b1/0x1530 [ 30.484052] ? ioctl_preallocate+0x2b0/0x2b0 [ 30.488434] ? selinux_capable+0x40/0x40 [ 30.492472] ? lockdep_sys_exit+0x47/0xf0 [ 30.496595] ? syscall_return_slowpath+0x2ad/0x550 [ 30.501505] ? security_file_ioctl+0x89/0xb0 [ 30.505893] SyS_ioctl+0x8f/0xc0 [ 30.509236] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 30.513960] RIP: 0033:0x448f69 [ 30.517118] RSP: 002b:00007fe082f35dc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000010 [ 30.525061] RAX: ffffffffffffffda RBX: 00007fe082f36700 RCX: 0000000000448f69 [ 30.532300] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 000000000000001a [ 30.539539] RBP: 00007fff0d20a5d0 R08: 00007fe082f36700 R09: 00007fe082f36700 [ 30.546786] R10: 00007fe082f36700 R11: 0000000000000202 R12: 0000000000000000 [ 30.554026] R13: 00007fff0d20a5cf R14: 00007fe082f369c0 R15: 0000000000000000 [ 30.561477] Dumping ftrace buffer: [ 30.565059] (ftrace buffer empty) [ 30.568739] Kernel Offset: disabled [ 30.572346] Rebooting in 86400 seconds..