program:
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_XEN_HVM_CONFIG(r1, 0x4038ae7a, &(0x7f0000000040)={0x2, 0x40000105, 0x0, 0x0})
r2 = syz_open_dev$sndctrl(&(0x7f0000000100), 0x1, 0x0)
ioctl$SNDRV_CTL_IOCTL_ELEM_UNLOCK(r2, 0xc1105511, &(0x7f0000000040)={0x7, 0x3, 0x40, 0x10000, 'syz1\x00', 0x4000041})
ioctl$BTRFS_IOC_SCRUB_CANCEL(r1, 0x941c, 0x0)
r3 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x4)
r4 = syz_open_pts(0xffffffffffffffff, 0x6440)
poll(&(0x7f00000000c0)=[{r3, 0x3}, {r2, 0x40a0}, {r4, 0x801b}], 0x3, 0x4)
ioctl$KVM_SET_CPUID2(r3, 0x4048aecb, &(0x7f0000000080)=ANY=[@ANYBLOB='\a'])
ioctl$KVM_RUN(r3, 0xae80, 0x0)
[ 85.266547][ T5305] Bluetooth: hci0: command tx timeout
[ 85.343529][ T5329] ------------[ cut here ]------------
[ 85.345936][ T5329] WARNING: CPU: 0 PID: 5329 at arch/x86/kvm/../../../virt/kvm/pfncache.c:267 __kvm_gpc_refresh+0x1187/0x1310
[ 85.350718][ T5329] Modules linked in:
[ 85.352631][ T5329] CPU: 0 UID: 0 PID: 5329 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 85.356525][ T5329] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[ 85.361114][ T5329] RIP: 0010:__kvm_gpc_refresh+0x1187/0x1310
[ 85.363611][ T5329] Code: c6 05 24 43 27 0e 01 48 c7 c7 eb d6 6f 8d be 35 04 00 00 48 c7 c2 40 ea 61 8b e8 04 cf 5d 00 e9 fe f1 ff ff e8 da 65 80 00 90 <0f> 0b 90 bb ea ff ff ff e9 7e fe ff ff e8 c7 65 80 00 90 0f 0b 90
[ 85.372395][ T5329] RSP: 0018:ffffc9000d3f7340 EFLAGS: 00010287
[ 85.375164][ T5329] RAX: ffffffff813fad96 RBX: ffff888000000000 RCX: 0000000000100000
[ 85.379240][ T5329] RDX: ffffc9000e422000 RSI: 0000000000000c5e RDI: 0000000000000c5f
[ 85.382840][ T5329] RBP: ffffc9000d3f74c8 R08: ffffffff8f7d0777 R09: 1ffffffff1efa0ee
[ 85.386567][ T5329] R10: dffffc0000000000 R11: fffffbfff1efa0ef R12: ffff8880515853e0
[ 85.390196][ T5329] R13: dffffc0000000000 R14: ffff888000000000 R15: ffffffffffffff01
[ 85.393786][ T5329] FS: 00007f7a6f2f26c0(0000) GS:ffff88808d730000(0000) knlGS:0000000000000000
[ 85.397974][ T5329] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 85.400849][ T5329] CR2: 00007f7a6e5b8558 CR3: 000000001e270000 CR4: 0000000000352ef0
[ 85.404385][ T5329] Call Trace:
[ 85.406084][ T5329]
[ 85.407447][ T5329] ? _raw_read_unlock_irqrestore+0x85/0x110
[ 85.410120][ T5329] ? kvm_gpc_refresh+0x31/0x140
[ 85.412335][ T5329] ? __pfx___kvm_gpc_refresh+0x10/0x10
[ 85.414775][ T5329] ? kvm_xen_set_evtchn+0x138/0x230
[ 85.417754][ T5329] ? lockdep_hardirqs_on+0x9c/0x150
[ 85.419939][ T5329] kvm_gpc_refresh+0xe1/0x140
[ 85.421871][ T5329] ? kvm_xen_set_evtchn+0x138/0x230
[ 85.424022][ T5329] kvm_xen_set_evtchn+0x164/0x230
[ 85.426424][ T5329] kvm_xen_inject_timer_irqs+0xfd/0x200
[ 85.428948][ T5329] vcpu_run+0xc2c/0x7040
[ 85.430795][ T5329] ? unwind_get_return_address+0x4d/0x90
[ 85.433280][ T5329] ? __pfx_vcpu_run+0x10/0x10
[ 85.435521][ T5329] ? kvm_arch_vcpu_ioctl_run+0x293/0x1cb0
[ 85.438109][ T5329] ? rcu_is_watching+0x15/0xb0
[ 85.440247][ T5329] kvm_arch_vcpu_ioctl_run+0x116c/0x1cb0
[ 85.442707][ T5329] ? check_path+0x21/0x40
[ 85.444648][ T5329] ? kvm_arch_vcpu_ioctl_run+0x293/0x1cb0
[ 85.447837][ T5329] ? __pfx_kvm_arch_vcpu_ioctl_run+0x10/0x10
[ 85.450313][ T5329] ? __lock_acquire+0xab9/0xd20
[ 85.452330][ T5329] kvm_vcpu_ioctl+0x95c/0xe90
[ 85.454276][ T5329] ? __pfx_kvm_vcpu_ioctl+0x10/0x10
[ 85.456586][ T5329] ? __fget_files+0x2a/0x420
[ 85.458528][ T5329] ? __fget_files+0x3a0/0x420
[ 85.460517][ T5329] ? __fget_files+0x2a/0x420
[ 85.462392][ T5329] ? bpf_lsm_file_ioctl+0x9/0x20
[ 85.464643][ T5329] ? __pfx_kvm_vcpu_ioctl+0x10/0x10
[ 85.466971][ T5329] __se_sys_ioctl+0xfc/0x170
[ 85.469140][ T5329] do_syscall_64+0xfa/0xfa0
[ 85.471547][ T5329] ? lockdep_hardirqs_on+0x9c/0x150
[ 85.473845][ T5329] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 85.476917][ T5329] ? clear_bhb_loop+0x60/0xb0
[ 85.479030][ T5329] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 85.481397][ T5329] RIP: 0033:0x7f7a6e38f6c9
[ 85.483223][ T5329] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 85.490967][ T5329] RSP: 002b:00007f7a6f2f2038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 85.494621][ T5329] RAX: ffffffffffffffda RBX: 00007f7a6e5e5fa0 RCX: 00007f7a6e38f6c9
[ 85.498302][ T5329] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000006
[ 85.501653][ T5329] RBP: 00007f7a6e411f91 R08: 0000000000000000 R09: 0000000000000000
[ 85.505141][ T5329] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 85.508825][ T5329] R13: 00007f7a6e5e6038 R14: 00007f7a6e5e5fa0 R15: 00007fffbadcb2f8
[ 85.512444][ T5329]
[ 85.513815][ T5329] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 85.516763][ T5329] CPU: 0 UID: 0 PID: 5329 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 85.520359][ T5329] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[ 85.524599][ T5329] Call Trace:
[ 85.526019][ T5329]
[ 85.527291][ T5329] dump_stack_lvl+0x99/0x250
[ 85.529133][ T5329] ? __asan_memcpy+0x40/0x70
[ 85.531199][ T5329] ? __pfx_dump_stack_lvl+0x10/0x10
[ 85.533936][ T5329] ? __pfx__printk+0x10/0x10
[ 85.536166][ T5329] vpanic+0x237/0x6d0
[ 85.538006][ T5329] ? __pfx_vpanic+0x10/0x10
[ 85.540072][ T5329] panic+0xb9/0xc0
[ 85.541779][ T5329] ? __pfx_panic+0x10/0x10
[ 85.543757][ T5329] __warn+0x31b/0x4b0
[ 85.545508][ T5329] ? __kvm_gpc_refresh+0x1187/0x1310
[ 85.547794][ T5329] ? __kvm_gpc_refresh+0x1187/0x1310
[ 85.550050][ T5329] report_bug+0x2be/0x4f0
[ 85.551926][ T5329] ? __kvm_gpc_refresh+0x1187/0x1310
[ 85.554143][ T5329] ? __kvm_gpc_refresh+0x1187/0x1310
[ 85.556403][ T5329] ? __kvm_gpc_refresh+0x1189/0x1310
[ 85.558811][ T5329] handle_bug+0x84/0x160
[ 85.560682][ T5329] exc_invalid_op+0x1a/0x50
[ 85.562631][ T5329] asm_exc_invalid_op+0x1a/0x20
[ 85.564849][ T5329] RIP: 0010:__kvm_gpc_refresh+0x1187/0x1310
[ 85.567337][ T5329] Code: c6 05 24 43 27 0e 01 48 c7 c7 eb d6 6f 8d be 35 04 00 00 48 c7 c2 40 ea 61 8b e8 04 cf 5d 00 e9 fe f1 ff ff e8 da 65 80 00 90 <0f> 0b 90 bb ea ff ff ff e9 7e fe ff ff e8 c7 65 80 00 90 0f 0b 90
[ 85.576337][ T5329] RSP: 0018:ffffc9000d3f7340 EFLAGS: 00010287
[ 85.579159][ T5329] RAX: ffffffff813fad96 RBX: ffff888000000000 RCX: 0000000000100000
[ 85.582472][ T5329] RDX: ffffc9000e422000 RSI: 0000000000000c5e RDI: 0000000000000c5f
[ 85.585896][ T5329] RBP: ffffc9000d3f74c8 R08: ffffffff8f7d0777 R09: 1ffffffff1efa0ee
[ 85.589255][ T5329] R10: dffffc0000000000 R11: fffffbfff1efa0ef R12: ffff8880515853e0
[ 85.592789][ T5329] R13: dffffc0000000000 R14: ffff888000000000 R15: ffffffffffffff01
[ 85.596030][ T5329] ? __kvm_gpc_refresh+0x1186/0x1310
[ 85.598499][ T5329] ? _raw_read_unlock_irqrestore+0x85/0x110
[ 85.601070][ T5329] ? kvm_gpc_refresh+0x31/0x140
[ 85.603167][ T5329] ? __pfx___kvm_gpc_refresh+0x10/0x10
[ 85.605401][ T5329] ? kvm_xen_set_evtchn+0x138/0x230
[ 85.607832][ T5329] ? lockdep_hardirqs_on+0x9c/0x150
[ 85.610372][ T5329] kvm_gpc_refresh+0xe1/0x140
[ 85.613028][ T5329] ? kvm_xen_set_evtchn+0x138/0x230
[ 85.615292][ T5329] kvm_xen_set_evtchn+0x164/0x230
[ 85.617727][ T5329] kvm_xen_inject_timer_irqs+0xfd/0x200
[ 85.620018][ T5329] vcpu_run+0xc2c/0x7040
[ 85.621738][ T5329] ? unwind_get_return_address+0x4d/0x90
[ 85.624056][ T5329] ? __pfx_vcpu_run+0x10/0x10
[ 85.626211][ T5329] ? kvm_arch_vcpu_ioctl_run+0x293/0x1cb0
[ 85.629161][ T5329] ? rcu_is_watching+0x15/0xb0
[ 85.631025][ T5329] kvm_arch_vcpu_ioctl_run+0x116c/0x1cb0
[ 85.633381][ T5329] ? check_path+0x21/0x40
[ 85.635284][ T5329] ? kvm_arch_vcpu_ioctl_run+0x293/0x1cb0
[ 85.637858][ T5329] ? __pfx_kvm_arch_vcpu_ioctl_run+0x10/0x10
[ 85.640616][ T5329] ? __lock_acquire+0xab9/0xd20
[ 85.642837][ T5329] kvm_vcpu_ioctl+0x95c/0xe90
[ 85.644956][ T5329] ? __pfx_kvm_vcpu_ioctl+0x10/0x10
[ 85.647205][ T5329] ? __fget_files+0x2a/0x420
[ 85.649133][ T5329] ? __fget_files+0x3a0/0x420
[ 85.651182][ T5329] ? __fget_files+0x2a/0x420
[ 85.653242][ T5329] ? bpf_lsm_file_ioctl+0x9/0x20
[ 85.655431][ T5329] ? __pfx_kvm_vcpu_ioctl+0x10/0x10
[ 85.657735][ T5329] __se_sys_ioctl+0xfc/0x170
[ 85.659855][ T5329] do_syscall_64+0xfa/0xfa0
[ 85.661999][ T5329] ? lockdep_hardirqs_on+0x9c/0x150
[ 85.664323][ T5329] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 85.666979][ T5329] ? clear_bhb_loop+0x60/0xb0
[ 85.669134][ T5329] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 85.671694][ T5329] RIP: 0033:0x7f7a6e38f6c9
[ 85.673661][ T5329] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 85.682103][ T5329] RSP: 002b:00007f7a6f2f2038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 85.685765][ T5329] RAX: ffffffffffffffda RBX: 00007f7a6e5e5fa0 RCX: 00007f7a6e38f6c9
[ 85.689353][ T5329] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000006
[ 85.692854][ T5329] RBP: 00007f7a6e411f91 R08: 0000000000000000 R09: 0000000000000000
[ 85.696331][ T5329] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 85.699795][ T5329] R13: 00007f7a6e5e6038 R14: 00007f7a6e5e5fa0 R15: 00007fffbadcb2f8
[ 85.703347][ T5329]
[ 85.705093][ T5329] Kernel Offset: disabled
[ 85.707101][ T5329] Rebooting in 86400 seconds..