Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.151' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 67.311680][ T8483] L1TF CPU bug present and SMT on, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/l1tf.html for details. [ 67.390303][ T8490] ================================================================================ [ 67.401249][ T8490] UBSAN: shift-out-of-bounds in arch/x86/kvm/vmx/pmu_intel.c:348:45 [ 67.409394][ T8490] shift exponent 197 is too large for 64-bit type 'long long unsigned int' [ 67.417996][ T8490] CPU: 1 PID: 8490 Comm: syz-executor977 Not tainted 5.11.0-rc3-syzkaller #0 [ 67.426742][ T8490] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.436788][ T8490] Call Trace: [ 67.440057][ T8490] dump_stack+0x107/0x163 [ 67.444393][ T8490] ubsan_epilogue+0xb/0x5a [ 67.448798][ T8490] __ubsan_handle_shift_out_of_bounds.cold+0xb1/0x181 [ 67.455554][ T8490] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 67.461793][ T8490] ? kvm_find_cpuid_entry+0x185/0x1e0 [ 67.467172][ T8490] intel_pmu_refresh.cold+0x75/0x99 [ 67.472379][ T8490] ? intel_pmc_is_enabled+0x90/0x90 [ 67.477569][ T8490] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 67.483282][ T8490] ? kvm_init_mmu+0x2c9/0x17c0 [ 67.488041][ T8490] kvm_vcpu_after_set_cpuid+0x65a/0xf80 [ 67.493581][ T8490] kvm_vcpu_ioctl_set_cpuid2+0x160/0x440 [ 67.499217][ T8490] kvm_arch_vcpu_ioctl+0x1249/0x2d30 [ 67.504492][ T8490] ? find_held_lock+0x2d/0x110 [ 67.509241][ T8490] ? kvm_arch_vcpu_put+0x530/0x530 [ 67.514341][ T8490] ? mutex_spin_on_owner+0x1bb/0x320 [ 67.519615][ T8490] ? lock_downgrade+0x6d0/0x6d0 [ 67.524455][ T8490] ? find_held_lock+0x2d/0x110 [ 67.529212][ T8490] ? osq_unlock+0x26/0x200 [ 67.533630][ T8490] ? __mutex_lock+0x61b/0x1110 [ 67.538391][ T8490] ? kvm_vcpu_ioctl+0x175/0xd90 [ 67.543233][ T8490] ? tomoyo_path_number_perm+0x24e/0x590 [ 67.548860][ T8490] ? mutex_lock_io_nested+0xf60/0xf60 [ 67.554221][ T8490] ? tomoyo_execute_permission+0x4a0/0x4a0 [ 67.560042][ T8490] kvm_vcpu_ioctl+0x7b9/0xd90 [ 67.564710][ T8490] ? kvm_io_bus_write+0x280/0x280 [ 67.569724][ T8490] ? generic_block_fiemap+0x60/0x60 [ 67.574915][ T8490] ? lock_downgrade+0x6d0/0x6d0 [ 67.579761][ T8490] ? __fget_files+0x288/0x3d0 [ 67.584429][ T8490] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 67.590662][ T8490] ? kvm_io_bus_write+0x280/0x280 [ 67.595696][ T8490] __x64_sys_ioctl+0x193/0x200 [ 67.600468][ T8490] do_syscall_64+0x2d/0x70 [ 67.604912][ T8490] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 67.610817][ T8490] RIP: 0033:0x4480a9 [ 67.614699][ T8490] Code: e8 9c af 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 67.634482][ T8490] RSP: 002b:00007f0646930d98 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 67.642909][ T8490] RAX: ffffffffffffffda RBX: 00000000006ddc68 RCX: 00000000004480a9 [ 67.650872][ T8490] RDX: 0000000020000480 RSI: 000000004008ae90 RDI: 0000000000000008 [ 67.658833][ T8490] RBP: 00000000006ddc60 R08: 0000000000000000 R09: 0000000000000000 [ 67.666791][ T8490] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006ddc6c [ 67.674747][ T8490] R13: ddd82e0065000000 R14: 099a300f0078010f R15: 2e320fc0000080b9 [ 67.683195][ T8490] ================================================================================ [ 67.692813][ T8490] Kernel panic - not syncing: panic_on_warn set ... [ 67.699410][ T8490] CPU: 1 PID: 8490 Comm: syz-executor977 Not tainted 5.11.0-rc3-syzkaller #0 [ 67.708183][ T8490] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.718241][ T8490] Call Trace: [ 67.721518][ T8490] dump_stack+0x107/0x163 [ 67.725852][ T8490] panic+0x306/0x73d [ 67.729741][ T8490] ? __warn_printk+0xf3/0xf3 [ 67.734335][ T8490] ? ubsan_epilogue+0x3e/0x5a [ 67.739001][ T8490] ubsan_epilogue+0x54/0x5a [ 67.743505][ T8490] __ubsan_handle_shift_out_of_bounds.cold+0xb1/0x181 [ 67.750258][ T8490] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 67.756500][ T8490] ? kvm_find_cpuid_entry+0x185/0x1e0 [ 67.761863][ T8490] intel_pmu_refresh.cold+0x75/0x99 [ 67.767056][ T8490] ? intel_pmc_is_enabled+0x90/0x90 [ 67.772246][ T8490] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 67.777966][ T8490] ? kvm_init_mmu+0x2c9/0x17c0 [ 67.782718][ T8490] kvm_vcpu_after_set_cpuid+0x65a/0xf80 [ 67.788254][ T8490] kvm_vcpu_ioctl_set_cpuid2+0x160/0x440 [ 67.793874][ T8490] kvm_arch_vcpu_ioctl+0x1249/0x2d30 [ 67.799149][ T8490] ? find_held_lock+0x2d/0x110 [ 67.803900][ T8490] ? kvm_arch_vcpu_put+0x530/0x530 [ 67.808999][ T8490] ? mutex_spin_on_owner+0x1bb/0x320 [ 67.814285][ T8490] ? lock_downgrade+0x6d0/0x6d0 [ 67.819123][ T8490] ? find_held_lock+0x2d/0x110 [ 67.823889][ T8490] ? osq_unlock+0x26/0x200 [ 67.828293][ T8490] ? __mutex_lock+0x61b/0x1110 [ 67.833045][ T8490] ? kvm_vcpu_ioctl+0x175/0xd90 [ 67.837886][ T8490] ? tomoyo_path_number_perm+0x24e/0x590 [ 67.843522][ T8490] ? mutex_lock_io_nested+0xf60/0xf60 [ 67.848880][ T8490] ? tomoyo_execute_permission+0x4a0/0x4a0 [ 67.854695][ T8490] kvm_vcpu_ioctl+0x7b9/0xd90 [ 67.859363][ T8490] ? kvm_io_bus_write+0x280/0x280 [ 67.864384][ T8490] ? generic_block_fiemap+0x60/0x60 [ 67.869580][ T8490] ? lock_downgrade+0x6d0/0x6d0 [ 67.874435][ T8490] ? __fget_files+0x288/0x3d0 [ 67.879115][ T8490] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 67.885346][ T8490] ? kvm_io_bus_write+0x280/0x280 [ 67.890361][ T8490] __x64_sys_ioctl+0x193/0x200 [ 67.895116][ T8490] do_syscall_64+0x2d/0x70 [ 67.899519][ T8490] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 67.905411][ T8490] RIP: 0033:0x4480a9 [ 67.909293][ T8490] Code: e8 9c af 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 67.928886][ T8490] RSP: 002b:00007f0646930d98 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 67.937285][ T8490] RAX: ffffffffffffffda RBX: 00000000006ddc68 RCX: 00000000004480a9 [ 67.945238][ T8490] RDX: 0000000020000480 RSI: 000000004008ae90 RDI: 0000000000000008 [ 67.953193][ T8490] RBP: 00000000006ddc60 R08: 0000000000000000 R09: 0000000000000000 [ 67.961157][ T8490] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006ddc6c [ 67.969123][ T8490] R13: ddd82e0065000000 R14: 099a300f0078010f R15: 2e320fc0000080b9 [ 67.977685][ T8490] Kernel Offset: disabled [ 67.982090][ T8490] Rebooting in 86400 seconds..