[ 45.761880] audit: type=1800 audit(1547955018.756:30): pid=8024 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 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: [ 50.686240] kauditd_printk_skb: 4 callbacks suppressed [ 50.686255] audit: type=1400 audit(1547955023.696:35): avc: denied { map } for pid=8197 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 '10.128.10.4' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program [ 57.475086] audit: type=1400 audit(1547955030.486:36): avc: denied { map } for pid=8209 comm="syz-executor046" path="/root/syz-executor046957598" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 57.488816] L1TF CPU bug present and SMT on, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/l1tf.html for details. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 64.988904] ------------[ cut here ]------------ [ 64.993818] kernel BUG at arch/x86/kvm/x86.c:357! [ 64.998685] ------------[ cut here ]------------ [ 65.003438] kernel BUG at arch/x86/kvm/x86.c:357! [ 65.008287] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 65.013645] CPU: 1 PID: 8864 Comm: syz-executor046 Not tainted 5.0.0-rc2+ #34 [ 65.020920] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.030276] RIP: 0010:kvm_spurious_fault+0x9/0x10 [ 65.035109] Code: e8 5c 22 76 00 41 bd 03 00 00 00 5b 44 89 e8 41 5c 41 5d 5d c3 66 90 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 e8 37 22 76 00 <0f> 0b 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 49 89 d6 41 55 41 54 [ 65.054005] RSP: 0018:ffff8880ae707c78 EFLAGS: 00010006 [ 65.059362] RAX: ffff88808e484440 RBX: ffff888091e03810 RCX: ffffffff8139cb1a [ 65.066623] RDX: 0000000000010000 RSI: ffffffff810bdcb9 RDI: 0000000000000007 [ 65.073883] RBP: ffff8880ae707c78 R08: ffff88808e484440 R09: ffffed1015ce5ba9 [ 65.081147] R10: ffffed1015ce5ba8 R11: ffff8880ae72dd47 R12: 1ffff11015ce0f94 [ 65.088407] R13: ffff8880ae707cc0 R14: ffff8880ae707d20 R15: ffff8880a93c6000 [ 65.095699] FS: 00007fdeeba69700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 65.103920] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 65.109797] CR2: ffff8880ae707cc0 CR3: 000000009e40a000 CR4: 00000000001426e0 [ 65.117064] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 65.124329] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 65.131587] Call Trace: [ 65.134172] [ 65.136368] loaded_vmcs_init+0xcb/0x320 [ 65.140426] ? find_msr_entry+0x170/0x170 [ 65.144569] ? kvm_clock_read+0x18/0x30 [ 65.148543] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 65.153555] ? ktime_get+0x2d4/0x410 [ 65.157280] __loaded_vmcs_clear+0x2c1/0x520 [ 65.161686] ? check_preemption_disabled+0x48/0x290 [ 65.166696] ? loaded_vmcs_init+0x320/0x320 [ 65.171009] ? pvclock_read_flags+0x160/0x160 [ 65.175501] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 65.181036] ? check_preemption_disabled+0x48/0x290 [ 65.186044] ? rcu_softirq_qs+0x20/0x20 [ 65.190024] flush_smp_call_function_queue+0x1bb/0x640 [ 65.195313] ? loaded_vmcs_init+0x320/0x320 [ 65.199629] ? smp_call_function_any+0x1c0/0x1c0 [ 65.204379] ? __lock_is_held+0xb6/0x140 [ 65.208446] generic_smp_call_function_single_interrupt+0x13/0x2b [ 65.214691] smp_call_function_single_interrupt+0x117/0x640 [ 65.220394] ? smp_call_function_interrupt+0x640/0x640 [ 65.225662] ? trace_hardirqs_off+0x310/0x310 [ 65.230156] ? task_prio+0x50/0x50 [ 65.233694] ? check_preemption_disabled+0x48/0x290 [ 65.238713] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 65.243559] call_function_single_interrupt+0xf/0x20 [ 65.248651] [ 65.250896] RIP: 0010:preempt_schedule_irq+0xab/0x140 [ 65.256099] Code: 00 00 e8 68 5e 65 f9 e8 13 6d 95 f9 4c 89 f0 48 c1 e8 03 80 3c 18 00 75 6c 48 83 3d ce 97 9f 01 00 74 5e fb 66 0f 1f 44 00 00 01 00 00 00 e8 5b d2 ff ff 48 c7 c0 f8 80 92 89 48 c1 e8 03 80 [ 65.274994] RSP: 0018:ffff8880a8756f98 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff04 [ 65.282694] RAX: 1ffffffff1325020 RBX: dffffc0000000000 RCX: 1ffff11011c9099c [ 65.289955] RDX: 0000000000000000 RSI: ffff88808e484ce8 RDI: ffff88808e484cbc [ 65.297219] RBP: ffff8880a8756fb8 R08: 0000000000000006 R09: ffff88808e484ce0 [ 65.304479] R10: ffff88808e484440 R11: 0000000000000000 R12: ffffed1011c90888 [ 65.311751] R13: ffff88808e484440 R14: ffffffff89928100 R15: 0000000000000000 [ 65.319061] ? preempt_schedule_irq+0x8d/0x140 [ 65.323640] retint_kernel+0x1b/0x2d [ 65.327347] RIP: 0010:do_error_trap+0x17e/0x200 [ 65.332005] Code: c0 00 81 92 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 72 48 83 3d 6b a2 66 08 00 74 3d fb 66 0f 1f 44 00 00 39 ff ff ff e8 08 b3 40 00 84 c0 0f 85 aa fe ff ff 48 c7 c2 e0 [ 65.350896] RSP: 0018:ffff8880a8757078 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff02 [ 65.358612] RAX: 1ffffffff1325020 RBX: 0000000000000006 RCX: 1ffff11011c9099c [ 65.365900] RDX: dffffc0000000000 RSI: ffff88808e484ce8 RDI: ffff88808e484cbc [ 65.373175] RBP: ffff8880a87570b0 R08: 0000000000000006 R09: ffff88808e484ce0 [ 65.380439] R10: ffff88808e484440 R11: 0000000000000000 R12: 0000000000000004 [ 65.387702] R13: ffffffff8844ec20 R14: 0000000000000000 R15: ffff8880a87570e8 [ 65.394982] ? do_error_trap+0x152/0x200 [ 65.399040] do_invalid_op+0x37/0x50 [ 65.402766] ? kvm_spurious_fault+0x9/0x10 [ 65.407006] invalid_op+0x14/0x20 [ 65.410453] RIP: 0010:kvm_spurious_fault+0x9/0x10 [ 65.415292] Code: e8 5c 22 76 00 41 bd 03 00 00 00 5b 44 89 e8 41 5c 41 5d 5d c3 66 90 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 e8 37 22 76 00 <0f> 0b 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 49 89 d6 41 55 41 54 [ 65.434182] RSP: 0018:ffff8880a8757198 EFLAGS: 00010293 [ 65.439566] RAX: ffff88808e484440 RBX: 1ffff110150eae3a RCX: ffffffff811f27c9 [ 65.446824] RDX: 0000000000000000 RSI: ffffffff810bdcb9 RDI: 0000000000000005 [ 65.454088] RBP: ffff8880a8757198 R08: ffff88808e484440 R09: ffffed101524db3a [ 65.461350] R10: ffffed101524db39 R11: ffff8880a926d9cf R12: ffff8880a87572c8 [ 65.468611] R13: ffff8880895b0000 R14: 0000000000000175 R15: ffff8880a8757230 [ 65.475889] ? vmx_set_msr+0xd9/0x2350 [ 65.479769] ? kvm_spurious_fault+0x9/0x10 [ 65.484006] ? kvm_spurious_fault+0x9/0x10 [ 65.488238] vmx_set_msr+0x1763/0x2350 [ 65.492130] ? pt_update_intercept_for_msr+0x690/0x690 [ 65.497418] ? lock_downgrade+0x910/0x910 [ 65.501570] ? lock_release+0xc40/0xc40 [ 65.505541] ? __check_object_size+0xa3/0x790 [ 65.510049] kvm_set_msr+0x190/0x380 [ 65.513771] do_set_msr+0x10e/0x180 [ 65.517423] ? do_get_msr+0x1f0/0x1f0 [ 65.521213] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 65.526753] msr_io+0x226/0x390 [ 65.530031] ? do_get_msr+0x1f0/0x1f0 [ 65.533828] ? emulator_set_hflags+0xa0/0xa0 [ 65.538232] ? rcu_sync_dtor+0x170/0x170 [ 65.542294] kvm_arch_vcpu_ioctl+0x137c/0x3ba0 [ 65.546870] ? kvm_arch_vcpu_ioctl+0x132a/0x3ba0 [ 65.551628] ? kvm_arch_vcpu_put+0x430/0x430 [ 65.556031] ? mark_held_locks+0x100/0x100 [ 65.560260] ? __lock_acquire+0x572/0x4a30 [ 65.564491] ? mark_held_locks+0x100/0x100 [ 65.568744] ? print_usage_bug+0xd0/0xd0 [ 65.572804] ? print_usage_bug+0xd0/0xd0 [ 65.576860] ? kfree+0xcf/0x230 [ 65.580131] ? __vunmap+0x2ee/0x400 [ 65.583757] ? __lock_acquire+0x572/0x4a30 [ 65.587986] ? add_lock_to_list.isra.0+0x450/0x450 [ 65.592910] ? add_lock_to_list.isra.0+0x450/0x450 [ 65.597834] ? mark_held_locks+0x100/0x100 [ 65.602067] ? lock_acquire+0x1db/0x570 [ 65.606043] ? kvm_vcpu_ioctl+0x1a4/0x12d0 [ 65.610286] ? ___might_sleep+0x1e7/0x310 [ 65.614432] ? lock_release+0xc40/0xc40 [ 65.618405] ? _raw_spin_unlock_irqrestore+0x6b/0xe0 [ 65.623507] ? _raw_spin_unlock_irqrestore+0x6b/0xe0 [ 65.628613] ? kvm_vcpu_ioctl+0x1a4/0x12d0 [ 65.632841] ? __mutex_lock+0x622/0x1670 [ 65.636902] ? lock_acquire+0x1db/0x570 [ 65.640874] ? kvm_vcpu_ioctl+0x1a4/0x12d0 [ 65.645101] ? _raw_spin_unlock_irqrestore+0x6b/0xe0 [ 65.650200] ? mutex_trylock+0x2d0/0x2d0 [ 65.654254] ? find_held_lock+0x35/0x120 [ 65.658323] ? debug_object_active_state+0x33b/0x500 [ 65.663423] ? mark_held_locks+0x100/0x100 [ 65.667655] ? trace_hardirqs_on+0xbd/0x310 [ 65.671972] ? kasan_check_read+0x11/0x20 [ 65.676115] ? debug_object_active_state+0x33b/0x500 [ 65.681218] ? __lock_acquire+0x572/0x4a30 [ 65.685455] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 65.690556] ? add_lock_to_list.isra.0+0x450/0x450 [ 65.695481] ? mark_held_locks+0x100/0x100 [ 65.699740] kvm_vcpu_ioctl+0x9d5/0x12d0 [ 65.703804] ? kvm_vcpu_block+0x1010/0x1010 [ 65.708128] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 65.713662] ? lock_downgrade+0x910/0x910 [ 65.717810] ? kasan_check_read+0x11/0x20 [ 65.721953] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 65.727236] ? rcu_read_unlock_special+0x380/0x380 [ 65.732160] ? __fget+0x499/0x710 [ 65.735627] ? iterate_fd+0x4b0/0x4b0 [ 65.739434] ? kvm_vcpu_block+0x1010/0x1010 [ 65.743750] do_vfs_ioctl+0x107b/0x17d0 [ 65.747728] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 65.752911] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 65.758443] ? selinux_file_ioctl+0x125/0x720 [ 65.762931] ? ioctl_preallocate+0x2f0/0x2f0 [ 65.767338] ? selinux_file_mprotect+0x620/0x620 [ 65.772088] ? __fget_light+0x2db/0x420 [ 65.776073] ? trace_hardirqs_off+0xb8/0x310 [ 65.780508] ? trace_hardirqs_on_caller+0x310/0x310 [ 65.785533] ? do_syscall_64+0x8c/0x800 [ 65.789517] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 65.795056] ? security_file_ioctl+0x93/0xc0 [ 65.799460] ksys_ioctl+0xab/0xd0 [ 65.802909] __x64_sys_ioctl+0x73/0xb0 [ 65.806799] do_syscall_64+0x1a3/0x800 [ 65.810687] ? syscall_return_slowpath+0x5f0/0x5f0 [ 65.815613] ? prepare_exit_to_usermode+0x232/0x3b0 [ 65.820625] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 65.825481] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 65.830670] RIP: 0033:0x449117 [ 65.833858] Code: 48 83 c4 08 48 89 d8 5b 5d c3 66 0f 1f 84 00 00 00 00 00 48 89 e8 48 f7 d8 48 39 c3 0f 92 c0 eb 92 66 90 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 0d 01 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 65.852753] RSP: 002b:00007fdeeba670f8 EFLAGS: 00000206 ORIG_RAX: 0000000000000010 [ 65.860467] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000449117 [ 65.867734] RDX: 00007fdeeba67100 RSI: 000000004008ae89 RDI: 0000000000000005 [ 65.874999] RBP: 0000000000000000 R08: 0000000000000090 R09: 0000000000000005 [ 65.882263] R10: 00000000000000b3 R11: 0000000000000206 R12: 0000000000000008 [ 65.889532] R13: 00007fff91129d0f R14: 00007fdeeba699c0 R15: 0000000000000000 [ 65.896803] Modules linked in: [ 65.899997] ---[ end trace 5ddc303d377ef020 ]--- [ 65.904751] RIP: 0010:kvm_spurious_fault+0x9/0x10 [ 65.909589] Code: e8 5c 22 76 00 41 bd 03 00 00 00 5b 44 89 e8 41 5c 41 5d 5d c3 66 90 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 e8 37 22 76 00 <0f> 0b 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 49 89 d6 41 55 41 54 [ 65.928481] RSP: 0018:ffff8880ae707c78 EFLAGS: 00010006 [ 65.933845] RAX: ffff88808e484440 RBX: ffff888091e03810 RCX: ffffffff8139cb1a [ 65.941105] RDX: 0000000000010000 RSI: ffffffff810bdcb9 RDI: 0000000000000007 [ 65.948367] RBP: ffff8880ae707c78 R08: ffff88808e484440 R09: ffffed1015ce5ba9 [ 65.955630] R10: ffffed1015ce5ba8 R11: ffff8880ae72dd47 R12: 1ffff11015ce0f94 [ 65.962895] R13: ffff8880ae707cc0 R14: ffff8880ae707d20 R15: ffff8880a93c6000 [ 65.970163] FS: 00007fdeeba69700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 65.978381] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 65.984255] CR2: ffff8880ae707cc0 CR3: 000000009e40a000 CR4: 00000000001426e0 [ 65.991543] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 65.998805] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 66.006100] Kernel panic - not syncing: Fatal exception in interrupt [ 66.013466] Kernel Offset: disabled [ 66.017098] Rebooting in 86400 seconds..