[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.15.205' (ECDSA) to the list of known hosts. syzkaller login: [ 67.142664][ T6802] IPVS: ftp: loaded support on port[0] = 21 [ 67.224791][ T6802] chnl_net:caif_netlink_parms(): no params data found [ 67.276261][ T6802] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.284801][ T6802] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.293353][ T6802] device bridge_slave_0 entered promiscuous mode [ 67.303142][ T6802] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.310220][ T6802] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.318572][ T6802] device bridge_slave_1 entered promiscuous mode [ 67.338584][ T6802] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.349540][ T6802] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.372402][ T6802] team0: Port device team_slave_0 added [ 67.380484][ T6802] team0: Port device team_slave_1 added [ 67.398195][ T6802] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 67.405228][ T6802] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 67.432132][ T6802] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 67.444644][ T6802] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 67.451942][ T6802] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 67.477984][ T6802] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 67.554031][ T6802] device hsr_slave_0 entered promiscuous mode [ 67.601690][ T6802] device hsr_slave_1 entered promiscuous mode [ 67.718751][ T6802] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 67.794795][ T6802] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 67.853917][ T6802] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 67.894140][ T6802] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 67.948906][ T6802] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.956308][ T6802] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.964361][ T6802] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.971542][ T6802] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.014314][ T6802] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.027969][ T2483] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.037967][ T2483] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.046318][ T2483] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.055062][ T2483] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 68.069177][ T6802] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.080849][ T2502] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.089583][ T2502] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.096741][ T2502] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.109043][ T2483] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.118372][ T2483] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.125496][ T2483] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.152538][ T2483] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.162982][ T2483] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.173664][ T2483] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.182504][ T2483] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.194378][ T2502] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.216713][ T2483] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.225934][ T2483] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.240042][ T6802] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.259783][ T2502] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 68.269204][ T2502] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.289776][ T6802] device veth0_vlan entered promiscuous mode [ 68.297327][ T2472] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 68.307259][ T2472] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.324962][ T2472] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 68.333375][ T2472] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 68.343963][ T6802] device veth1_vlan entered promiscuous mode [ 68.366006][ T2472] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 68.375239][ T2472] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 68.384465][ T2472] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 68.393277][ T2472] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 68.405014][ T6802] device veth0_macvtap entered promiscuous mode [ 68.416107][ T6802] device veth1_macvtap entered promiscuous mode [ 68.432969][ T6802] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 68.440673][ T2483] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 68.442523][ T2483] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 68.456354][ T2483] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 68.466052][ T2483] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 68.479692][ T6802] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 68.487942][ T2472] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 68.497904][ T2472] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 69.001122][ T2483] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 69.261070][ T2483] usb 1-1: Using ep0 maxpacket: 8 [ 69.411319][ T2483] usb 1-1: config 1 has an invalid descriptor of length 0, skipping remainder of the config [ 69.421792][ T2483] usb 1-1: config 1 interface 0 altsetting 255 endpoint 0x81 has an invalid bInterval 0, changing to 7 [ 69.434097][ T2483] usb 1-1: config 1 interface 0 altsetting 255 has 1 endpoint descriptor, different from the interface descriptor's value: 3 [ 69.447961][ T2483] usb 1-1: config 1 interface 0 has no altsetting 0 [ 69.621237][ T2483] usb 1-1: New USB device found, idVendor=0dba, idProduct=1000, bcdDevice= 0.40 [ 69.630708][ T2483] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 69.639019][ T2483] usb 1-1: Product: syz [ 69.643505][ T2483] usb 1-1: Manufacturer: syz [ 69.648097][ T2483] usb 1-1: SerialNumber: syz executing program [ 70.174281][ T2483] usb 1-1: USB disconnect, device number 2 [ 70.600825][ T2483] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 70.840731][ T2483] usb 1-1: Using ep0 maxpacket: 8 [ 70.960900][ T2483] usb 1-1: config 1 has an invalid descriptor of length 0, skipping remainder of the config [ 70.971404][ T2483] usb 1-1: config 1 interface 0 altsetting 255 endpoint 0x81 has an invalid bInterval 0, changing to 7 [ 70.982769][ T2483] usb 1-1: config 1 interface 0 altsetting 255 has 1 endpoint descriptor, different from the interface descriptor's value: 3 [ 70.996072][ T2483] usb 1-1: config 1 interface 0 has no altsetting 0 [ 71.160858][ T2483] usb 1-1: New USB device found, idVendor=0dba, idProduct=1000, bcdDevice= 0.40 [ 71.169929][ T2483] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 71.179438][ T2483] usb 1-1: Product: syz [ 71.183849][ T2483] usb 1-1: Manufacturer: syz [ 71.188443][ T2483] usb 1-1: SerialNumber: syz executing program [ 71.720936][ T2472] usb 1-1: USB disconnect, device number 3 [ 72.140566][ T2472] usb 1-1: new high-speed USB device number 4 using dummy_hcd [ 72.390516][ T2472] usb 1-1: Using ep0 maxpacket: 8 [ 72.510700][ T2472] usb 1-1: config 1 has an invalid descriptor of length 0, skipping remainder of the config [ 72.521083][ T2472] usb 1-1: config 1 interface 0 altsetting 255 endpoint 0x81 has an invalid bInterval 0, changing to 7 [ 72.533325][ T2472] usb 1-1: config 1 interface 0 altsetting 255 has 1 endpoint descriptor, different from the interface descriptor's value: 3 [ 72.547269][ T2472] usb 1-1: config 1 interface 0 has no altsetting 0 [ 72.710736][ T2472] usb 1-1: New USB device found, idVendor=0dba, idProduct=1000, bcdDevice= 0.40 [ 72.719976][ T2472] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 72.728232][ T2472] usb 1-1: Product: syz [ 72.732499][ T2472] usb 1-1: Manufacturer: syz [ 72.737390][ T2472] usb 1-1: SerialNumber: syz executing program [ 73.265351][ T2483] usb 1-1: USB disconnect, device number 4 [ 73.720329][ T2483] usb 1-1: new high-speed USB device number 5 using dummy_hcd [ 73.970347][ T2483] usb 1-1: Using ep0 maxpacket: 8 [ 74.120707][ T2483] usb 1-1: config 1 has an invalid descriptor of length 0, skipping remainder of the config [ 74.131849][ T2483] usb 1-1: config 1 interface 0 altsetting 255 endpoint 0x81 has an invalid bInterval 0, changing to 7 [ 74.143992][ T2483] usb 1-1: config 1 interface 0 altsetting 255 has 1 endpoint descriptor, different from the interface descriptor's value: 3 [ 74.157745][ T2483] usb 1-1: config 1 interface 0 has no altsetting 0 [ 74.320453][ T2483] usb 1-1: New USB device found, idVendor=0dba, idProduct=1000, bcdDevice= 0.40 [ 74.329706][ T2483] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 74.339059][ T2483] usb 1-1: Product: syz [ 74.343896][ T2483] usb 1-1: Manufacturer: syz [ 74.348627][ T2483] usb 1-1: SerialNumber: syz [ 74.650438][ C0] ================================================================== [ 74.658773][ C0] BUG: KASAN: slab-out-of-bounds in snd_usb_mixer_interrupt+0x8f1/0x980 [ 74.667165][ C0] Write of size 4 at addr ffff8880a36098e0 by task swapper/0/0 [ 74.674788][ C0] [ 74.677100][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.7.0-syzkaller #0 [ 74.684613][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.694643][ C0] Call Trace: [ 74.697922][ C0] [ 74.700766][ C0] dump_stack+0x188/0x20d [ 74.705073][ C0] ? snd_usb_mixer_interrupt+0x8f1/0x980 [ 74.710688][ C0] ? snd_usb_mixer_interrupt+0x8f1/0x980 [ 74.716379][ C0] print_address_description.constprop.0.cold+0xd3/0x413 [ 74.723395][ C0] ? kcov_remote_start+0xe5/0x3d0 [ 74.728407][ C0] ? vprintk_func+0x97/0x1a6 [ 74.732980][ C0] ? snd_usb_mixer_interrupt+0x8f1/0x980 [ 74.738587][ C0] kasan_report.cold+0x1f/0x37 [ 74.743344][ C0] ? lock_downgrade+0x7d1/0x840 [ 74.748169][ C0] ? snd_usb_mixer_interrupt+0x8f1/0x980 [ 74.753810][ C0] snd_usb_mixer_interrupt+0x8f1/0x980 [ 74.759252][ C0] __usb_hcd_giveback_urb+0x2af/0x4b0 [ 74.764617][ C0] usb_hcd_giveback_urb+0x368/0x420 [ 74.769809][ C0] dummy_timer+0x1243/0x2fe1 [ 74.774398][ C0] ? __lock_acquire+0x2224/0x48a0 [ 74.779422][ C0] ? debug_smp_processor_id+0x2f/0x185 [ 74.784960][ C0] ? dummy_dequeue+0x4c0/0x4c0 [ 74.789714][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 74.795251][ C0] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 74.801208][ C0] call_timer_fn+0x1ac/0x780 [ 74.805771][ C0] ? dummy_dequeue+0x4c0/0x4c0 [ 74.810508][ C0] ? timer_fixup_init+0x60/0x60 [ 74.815419][ C0] ? lock_downgrade+0x840/0x840 [ 74.820269][ C0] ? _raw_spin_unlock_irq+0x1f/0x80 [ 74.825443][ C0] ? lockdep_hardirqs_on_prepare+0x1bc/0x590 [ 74.831399][ C0] ? dummy_dequeue+0x4c0/0x4c0 [ 74.836158][ C0] run_timer_softirq+0x623/0x1600 [ 74.841175][ C0] ? add_timer+0x830/0x830 [ 74.845575][ C0] ? debug_smp_processor_id+0x2f/0x185 [ 74.851117][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 74.856642][ C0] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 74.862713][ C0] ? lockdep_hardirqs_on_prepare+0x1bc/0x590 [ 74.868673][ C0] __do_softirq+0x26c/0x9f7 [ 74.873265][ C0] irq_exit+0x192/0x1d0 [ 74.877409][ C0] smp_apic_timer_interrupt+0x19e/0x600 [ 74.882945][ C0] apic_timer_interrupt+0xf/0x20 [ 74.887910][ C0] [ 74.890882][ C0] RIP: 0010:native_safe_halt+0xe/0x10 [ 74.896315][ C0] Code: cc cc cc cc cc cc cc cc cc cc cc cc e9 07 00 00 00 0f 00 2d 84 9c 4a 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d 74 9c 4a 00 fb f4 cc 41 56 41 55 41 54 55 53 e8 33 9c 83 f9 e8 be c8 bf fb 0f 1f [ 74.919983][ C0] RSP: 0018:ffffffff89807c50 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 74.928382][ C0] RAX: ffffffff89886580 RBX: 0000000000000000 RCX: 1ffffffff15173ba [ 74.936335][ C0] RDX: 0000000000000000 RSI: ffffffff87de1248 RDI: ffffffff89886e00 [ 74.944302][ C0] RBP: ffff8880a744f064 R08: 0000000000000000 R09: 0000000000000001 [ 74.952252][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a744f064 [ 74.960298][ C0] R13: 1ffffffff1300f95 R14: ffff8880a744f065 R15: 0000000000000001 [ 74.968261][ C0] ? acpi_safe_halt+0x88/0x110 [ 74.973021][ C0] acpi_safe_halt+0x8d/0x110 [ 74.977745][ C0] acpi_idle_do_entry+0xa9/0xe0 [ 74.982580][ C0] acpi_idle_enter+0x437/0xb20 [ 74.987375][ C0] ? acpi_idle_enter_bm+0x2d0/0x2d0 [ 74.992567][ C0] ? kvm_clock_read+0x14/0x30 [ 74.997219][ C0] ? kvm_sched_clock_read+0x5/0x10 [ 75.002305][ C0] ? sched_clock+0x2a/0x40 [ 75.006782][ C0] ? sched_clock_cpu+0x18/0x1b0 [ 75.011613][ C0] cpuidle_enter_state+0xdd/0xd60 [ 75.016613][ C0] ? assoc_array_gc+0x1200/0x1250 [ 75.021613][ C0] cpuidle_enter+0x4a/0xa0 [ 75.026004][ C0] do_idle+0x42f/0x690 [ 75.030062][ C0] ? arch_cpu_idle_exit+0x70/0x70 [ 75.035071][ C0] ? schedule+0xe7/0x2a0 [ 75.039295][ C0] ? trace_init_perf_perm_irq_work_exit+0xe/0xe [ 75.045509][ C0] cpu_startup_entry+0x14/0x20 [ 75.050248][ C0] start_kernel+0x9be/0x9fb [ 75.054729][ C0] ? mem_encrypt_init+0x5/0x5 [ 75.059412][ C0] ? x86_family+0x3d/0x50 [ 75.063734][ C0] ? load_ucode_bsp+0x23d/0x27d [ 75.068580][ C0] secondary_startup_64+0xa4/0xb0 [ 75.073588][ C0] [ 75.076162][ C0] Allocated by task 2483: [ 75.080559][ C0] save_stack+0x1b/0x40 [ 75.084707][ C0] __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 75.090460][ C0] kmem_cache_alloc_trace+0x153/0x7d0 [ 75.095813][ C0] add_single_ctl_with_resume+0x53/0x1d0 [ 75.101430][ C0] snd_usb_mixer_apply_create_quirk+0x17ac/0x2000 [ 75.107992][ C0] snd_usb_create_mixer+0x7de/0x18c0 [ 75.113264][ C0] create_standard_mixer_quirk+0x57/0x70 [ 75.118878][ C0] snd_usb_create_quirk+0x9f/0xd0 [ 75.124833][ C0] create_composite_quirk+0x1d5/0x420 [ 75.130178][ C0] snd_usb_create_quirk+0x9f/0xd0 [ 75.135171][ C0] usb_audio_probe+0x57a/0x2240 [ 75.139993][ C0] usb_probe_interface+0x305/0x7a0 [ 75.145121][ C0] really_probe+0x281/0x6d0 [ 75.149608][ C0] driver_probe_device+0x104/0x210 [ 75.154692][ C0] __device_attach_driver+0x1c2/0x220 [ 75.160043][ C0] bus_for_each_drv+0x162/0x1e0 [ 75.164877][ C0] __device_attach+0x21a/0x360 [ 75.169717][ C0] bus_probe_device+0x1e4/0x290 [ 75.174577][ C0] device_add+0x132d/0x1c10 [ 75.179067][ C0] usb_set_configuration+0xec5/0x1740 [ 75.184427][ C0] usb_generic_driver_probe+0x9d/0xe0 [ 75.189871][ C0] usb_probe_device+0xc6/0x1f0 [ 75.194625][ C0] really_probe+0x281/0x6d0 [ 75.199115][ C0] driver_probe_device+0x104/0x210 [ 75.204201][ C0] __device_attach_driver+0x1c2/0x220 [ 75.209544][ C0] bus_for_each_drv+0x162/0x1e0 [ 75.214364][ C0] __device_attach+0x21a/0x360 [ 75.219110][ C0] bus_probe_device+0x1e4/0x290 [ 75.223934][ C0] device_add+0x132d/0x1c10 [ 75.228409][ C0] usb_new_device.cold+0x753/0x103d [ 75.233579][ C0] hub_event+0x1eca/0x38f0 [ 75.237969][ C0] process_one_work+0x965/0x16a0 [ 75.242892][ C0] worker_thread+0x96/0xe20 [ 75.247381][ C0] kthread+0x388/0x470 [ 75.251440][ C0] ret_from_fork+0x24/0x30 [ 75.255835][ C0] [ 75.258135][ C0] Freed by task 1: [ 75.261841][ C0] save_stack+0x1b/0x40 [ 75.265970][ C0] __kasan_slab_free+0xf7/0x140 [ 75.270893][ C0] kfree+0x109/0x2b0 [ 75.274777][ C0] tomoyo_path_perm+0x236/0x400 [ 75.279600][ C0] security_inode_getattr+0xeb/0x150 [ 75.284857][ C0] vfs_getattr+0x22/0x60 [ 75.289082][ C0] vfs_statx+0x177/0x370 [ 75.293301][ C0] __do_sys_newlstat+0x91/0x110 [ 75.298127][ C0] do_syscall_64+0xf6/0x7d0 [ 75.302620][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 75.308610][ C0] [ 75.310915][ C0] The buggy address belongs to the object at ffff8880a3609880 [ 75.310915][ C0] which belongs to the cache kmalloc-64 of size 64 [ 75.324766][ C0] The buggy address is located 32 bytes to the right of [ 75.324766][ C0] 64-byte region [ffff8880a3609880, ffff8880a36098c0) [ 75.338365][ C0] The buggy address belongs to the page: [ 75.343973][ C0] page:ffffea00028d8240 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff8880a3609480 [ 75.354354][ C0] flags: 0xfffe0000000200(slab) [ 75.359185][ C0] raw: 00fffe0000000200 ffffea0002690748 ffffea0002530948 ffff8880aa000380 [ 75.367743][ C0] raw: ffff8880a3609480 ffff8880a3609000 0000000100000009 0000000000000000 [ 75.376312][ C0] page dumped because: kasan: bad access detected [ 75.382867][ C0] [ 75.385166][ C0] Memory state around the buggy address: [ 75.390782][ C0] ffff8880a3609780: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 75.398815][ C0] ffff8880a3609800: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 75.406860][ C0] >ffff8880a3609880: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc [ 75.415085][ C0] ^ [ 75.423298][ C0] ffff8880a3609900: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 75.431449][ C0] ffff8880a3609980: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 75.439489][ C0] ================================================================== [ 75.447526][ C0] Disabling lock debugging due to kernel taint [ 75.453648][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 75.460213][ C0] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G B 5.7.0-syzkaller #0 [ 75.469112][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.479153][ C0] Call Trace: [ 75.482473][ C0] [ 75.485322][ C0] dump_stack+0x188/0x20d [ 75.489744][ C0] ? snd_usb_mixer_interrupt+0x800/0x980 [ 75.495364][ C0] panic+0x2e3/0x75c [ 75.499234][ C0] ? add_taint.cold+0x16/0x16 [ 75.503886][ C0] ? trace_hardirqs_off+0x50/0x220 [ 75.508967][ C0] ? snd_usb_mixer_interrupt+0x8f1/0x980 [ 75.514571][ C0] ? snd_usb_mixer_interrupt+0x8f1/0x980 [ 75.520184][ C0] end_report+0x4d/0x53 [ 75.524315][ C0] kasan_report.cold+0xd/0x37 [ 75.528964][ C0] ? lock_downgrade+0x7d1/0x840 [ 75.533792][ C0] ? snd_usb_mixer_interrupt+0x8f1/0x980 [ 75.539480][ C0] snd_usb_mixer_interrupt+0x8f1/0x980 [ 75.544921][ C0] __usb_hcd_giveback_urb+0x2af/0x4b0 [ 75.550298][ C0] usb_hcd_giveback_urb+0x368/0x420 [ 75.555610][ C0] dummy_timer+0x1243/0x2fe1 [ 75.560222][ C0] ? __lock_acquire+0x2224/0x48a0 [ 75.565313][ C0] ? debug_smp_processor_id+0x2f/0x185 [ 75.570766][ C0] ? dummy_dequeue+0x4c0/0x4c0 [ 75.575504][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 75.581039][ C0] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 75.586995][ C0] call_timer_fn+0x1ac/0x780 [ 75.591557][ C0] ? dummy_dequeue+0x4c0/0x4c0 [ 75.596298][ C0] ? timer_fixup_init+0x60/0x60 [ 75.601134][ C0] ? lock_downgrade+0x840/0x840 [ 75.605957][ C0] ? _raw_spin_unlock_irq+0x1f/0x80 [ 75.611132][ C0] ? lockdep_hardirqs_on_prepare+0x1bc/0x590 [ 75.617274][ C0] ? dummy_dequeue+0x4c0/0x4c0 [ 75.622026][ C0] run_timer_softirq+0x623/0x1600 [ 75.627044][ C0] ? add_timer+0x830/0x830 [ 75.631435][ C0] ? debug_smp_processor_id+0x2f/0x185 [ 75.636868][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 75.642493][ C0] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 75.648466][ C0] ? lockdep_hardirqs_on_prepare+0x1bc/0x590 [ 75.654442][ C0] __do_softirq+0x26c/0x9f7 [ 75.659023][ C0] irq_exit+0x192/0x1d0 [ 75.663180][ C0] smp_apic_timer_interrupt+0x19e/0x600 [ 75.668795][ C0] apic_timer_interrupt+0xf/0x20 [ 75.673790][ C0] [ 75.676717][ C0] RIP: 0010:native_safe_halt+0xe/0x10 [ 75.682061][ C0] Code: cc cc cc cc cc cc cc cc cc cc cc cc e9 07 00 00 00 0f 00 2d 84 9c 4a 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d 74 9c 4a 00 fb f4 cc 41 56 41 55 41 54 55 53 e8 33 9c 83 f9 e8 be c8 bf fb 0f 1f [ 75.701722][ C0] RSP: 0018:ffffffff89807c50 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 75.710189][ C0] RAX: ffffffff89886580 RBX: 0000000000000000 RCX: 1ffffffff15173ba [ 75.718134][ C0] RDX: 0000000000000000 RSI: ffffffff87de1248 RDI: ffffffff89886e00 [ 75.726185][ C0] RBP: ffff8880a744f064 R08: 0000000000000000 R09: 0000000000000001 [ 75.734279][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a744f064 [ 75.742316][ C0] R13: 1ffffffff1300f95 R14: ffff8880a744f065 R15: 0000000000000001 [ 75.750276][ C0] ? acpi_safe_halt+0x88/0x110 [ 75.755053][ C0] acpi_safe_halt+0x8d/0x110 [ 75.759633][ C0] acpi_idle_do_entry+0xa9/0xe0 [ 75.764561][ C0] acpi_idle_enter+0x437/0xb20 [ 75.769303][ C0] ? acpi_idle_enter_bm+0x2d0/0x2d0 [ 75.774474][ C0] ? kvm_clock_read+0x14/0x30 [ 75.779133][ C0] ? kvm_sched_clock_read+0x5/0x10 [ 75.784216][ C0] ? sched_clock+0x2a/0x40 [ 75.788690][ C0] ? sched_clock_cpu+0x18/0x1b0 [ 75.793688][ C0] cpuidle_enter_state+0xdd/0xd60 [ 75.798685][ C0] ? assoc_array_gc+0x1200/0x1250 [ 75.803681][ C0] cpuidle_enter+0x4a/0xa0 [ 75.808071][ C0] do_idle+0x42f/0x690 [ 75.812124][ C0] ? arch_cpu_idle_exit+0x70/0x70 [ 75.817119][ C0] ? schedule+0xe7/0x2a0 [ 75.821336][ C0] ? trace_init_perf_perm_irq_work_exit+0xe/0xe [ 75.827547][ C0] cpu_startup_entry+0x14/0x20 [ 75.832285][ C0] start_kernel+0x9be/0x9fb [ 75.836761][ C0] ? mem_encrypt_init+0x5/0x5 [ 75.841409][ C0] ? x86_family+0x3d/0x50 [ 75.845711][ C0] ? load_ucode_bsp+0x23d/0x27d [ 75.850534][ C0] secondary_startup_64+0xa4/0xb0 [ 75.856984][ C0] Kernel Offset: disabled [ 75.861302][ C0] Rebooting in 86400 seconds..