[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [ 11.572687] sshd (3067) used greatest stack depth: 15488 bytes left [....] 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: [ 15.409879] audit: type=1400 audit(1514035401.576:6): avc: denied { map } for pid=3134 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-1,10.128.15.204' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 46.678852] audit: type=1400 audit(1514035432.845:7): avc: denied { map } for pid=3152 comm="syzkaller358397" path="/root/syzkaller358397151" 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 executing program executing program executing program executing program executing program executing program executing program executing program [ 46.715703] 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 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executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 51.870337] WARNING: CPU: 1 PID: 3185 at arch/x86/kvm/x86.c:7377 kvm_arch_vcpu_ioctl_run+0x1cf/0x5cb0 [ 51.879795] Kernel panic - not syncing: panic_on_warn set ... [ 51.879795] [ 51.887151] CPU: 1 PID: 3185 Comm: syzkaller358397 Not tainted 4.15.0-rc4-mm1+ #49 [ 51.894846] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.904191] Call Trace: [ 51.906770] dump_stack+0x194/0x257 [ 51.910396] ? arch_local_irq_restore+0x53/0x53 [ 51.915061] ? vsnprintf+0x1ed/0x1900 executing program executing program executing program executing program executing program [ 51.918857] panic+0x1e4/0x41c [ 51.922040] ? refcount_error_report+0x214/0x214 [ 51.926782] ? show_regs_print_info+0x18/0x18 [ 51.931277] ? __warn+0x1c1/0x200 [ 51.934734] ? kvm_arch_vcpu_ioctl_run+0x1cf/0x5cb0 [ 51.939744] __warn+0x1dc/0x200 [ 51.943019] ? kvm_arch_vcpu_ioctl_run+0x1cf/0x5cb0 [ 51.948027] report_bug+0x211/0x2d0 [ 51.951637] fixup_bug.part.11+0x37/0x80 [ 51.955671] do_error_trap+0x2d7/0x3e0 [ 51.959530] ? trace_hardirqs_on+0xd/0x10 [ 51.963651] ? math_error+0x400/0x400 [ 51.967426] ? __lock_is_held+0xb6/0x140 [ 51.971470] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.976288] do_invalid_op+0x1b/0x20 [ 51.979972] invalid_op+0x22/0x40 [ 51.983396] RIP: 0010:kvm_arch_vcpu_ioctl_run+0x1cf/0x5cb0 [ 51.988985] RSP: 0018:ffff8801c62af6b0 EFLAGS: 00010293 [ 51.994321] RAX: ffff8801c6258680 RBX: ffff8801d2046000 RCX: ffffffff810df6bf [ 52.001565] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801d05715a0 [ 52.008804] RBP: ffff8801c62afa40 R08: 1ffff1003a0aed4b R09: 0000000000000001 [ 52.016053] R10: ffff8801c62af690 R11: 0000000000000000 R12: 0000000000000000 [ 52.023298] R13: ffff8801d6ce6a00 R14: ffff8801d0571380 R15: ffff8801d0571380 [ 52.030550] ? kvm_arch_vcpu_ioctl_run+0x1cf/0x5cb0 [ 52.035547] ? mark_held_locks+0xaf/0x100 [ 52.039668] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 52.044743] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 52.049729] ? trace_hardirqs_on+0xd/0x10 [ 52.053853] ? free_object+0x150/0x230 [ 52.057712] ? kvm_arch_vcpu_runnable+0x560/0x560 [ 52.062524] ? debug_stats_show+0xd0/0xd0 [ 52.066641] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 52.071718] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 52.076712] ? debug_object_free+0x2f1/0x5a0 [ 52.081089] ? lockdep_init_map+0x9/0x10 [ 52.085124] ? debug_object_destroy+0x2b0/0x2b0 [ 52.089775] ? __wait_rcu_gp+0x230/0x340 [ 52.093818] ? synchronize_sched.part.65+0xac/0x100 [ 52.098808] ? synchronize_sched_expedited+0xf0/0xf0 [ 52.103889] ? call_rcu_bh+0x20/0x20 [ 52.107575] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 52.113432] ? put_pid+0x183/0x1f0 [ 52.116952] ? task_active_pid_ns+0xd0/0xd0 [ 52.121256] ? __might_sleep+0x95/0x190 [ 52.125207] kvm_vcpu_ioctl+0x6f1/0xff0 [ 52.129151] ? kvm_vcpu_ioctl+0x6f1/0xff0 [ 52.133272] ? kvm_vcpu_fault+0x520/0x520 [ 52.137400] ? find_held_lock+0x35/0x1d0 [ 52.141441] ? __fget+0x333/0x570 [ 52.144866] ? lock_downgrade+0x980/0x980 [ 52.148989] ? lock_release+0xa40/0xa40 [ 52.152939] ? __lock_is_held+0xb6/0x140 [ 52.156983] ? __fget+0x35c/0x570 [ 52.160417] ? iterate_fd+0x3f0/0x3f0 [ 52.164188] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 52.168923] ? retint_kernel+0x10/0x10 [ 52.172785] ? kvm_vcpu_fault+0x520/0x520 [ 52.176903] do_vfs_ioctl+0x1b1/0x1520 [ 52.180765] ? ioctl_preallocate+0x2b0/0x2b0 [ 52.185149] ? selinux_capable+0x40/0x40 [ 52.189187] ? SyS_futex+0x269/0x390 [ 52.192897] ? security_file_ioctl+0x89/0xb0 [ 52.197280] SyS_ioctl+0x8f/0xc0 [ 52.200623] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 52.205352] RIP: 0033:0x445a09 [ 52.208512] RSP: 002b:00007f670765bda8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 52.216189] RAX: ffffffffffffffda RBX: 00000000006dac54 RCX: 0000000000445a09 [ 52.223430] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 00000000000001f0 [ 52.230669] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 52.237910] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dac50 [ 52.245152] R13: 6d766b2f7665642f R14: 00007f670765c9c0 R15: 0000000000000009 [ 52.253077] Dumping ftrace buffer: [ 52.256644] (ftrace buffer empty) [ 52.260322] Kernel Offset: disabled [ 52.263921] Rebooting in 86400 seconds..