[[0;32m OK [0m] Reached target Graphical Interface.
Starting Update UTMP about System Runlevel Changes...
[[0;32m OK [0m] Started Load/Save RF Kill Switch Status.
[[0;32m OK [0m] Started Update UTMP about System Runlevel Changes.
Debian GNU/Linux 9 syzkaller ttyS0
syzkaller login: [ 13.630140][ C1] random: crng init done
[ 13.634415][ C1] random: 7 urandom warning(s) missed due to ratelimiting
Warning: Permanently added '10.128.0.86' (ECDSA) to the list of known hosts.
executing program
[ 20.543902][ T21] usb 1-1: new high-speed USB device number 2 using dummy_hcd
[ 21.063022][ T21] usb 1-1: New USB device found, idVendor=0cf3, idProduct=9271, bcdDevice= 1.08
[ 21.072239][ T21] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 21.080251][ T21] usb 1-1: Product: syz
[ 21.084446][ T21] usb 1-1: Manufacturer: syz
[ 21.089017][ T21] usb 1-1: SerialNumber: syz
[ 21.133708][ T21] usb 1-1: ath9k_htc: Firmware ath9k_htc/htc_9271-1.4.0.fw requested
[ 21.712149][ T21] usb 1-1: ath9k_htc: Transferred FW: ath9k_htc/htc_9271-1.4.0.fw, size: 51008
[ 22.151552][ C1] ==================================================================
[ 22.159719][ C1] BUG: KASAN: use-after-free in ath9k_hif_usb_rx_cb+0x3a8/0xf80
[ 22.167337][ C1] Read of size 49279 at addr ffff8881cd0f0000 by task swapper/1/0
[ 22.175119][ C1]
[ 22.177429][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.8.0-syzkaller #0
[ 22.184943][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 22.194967][ C1] Call Trace:
[ 22.198224][ C1]
[ 22.201055][ C1] dump_stack+0xf6/0x16e
[ 22.205272][ C1] ? ath9k_hif_usb_rx_cb+0x3a8/0xf80
[ 22.210530][ C1] ? ath9k_hif_usb_rx_cb+0x3a8/0xf80
[ 22.215826][ C1] print_address_description.constprop.0+0x1c/0x210
[ 22.222387][ C1] ? ath9k_hif_usb_rx_cb+0x23e/0xf80
[ 22.227643][ C1] ? vprintk_func+0x93/0x133
[ 22.232204][ C1] ? ath9k_hif_usb_rx_cb+0x3a8/0xf80
[ 22.237460][ C1] ? ath9k_hif_usb_rx_cb+0x3a8/0xf80
[ 22.242715][ C1] kasan_report.cold+0x37/0x7c
[ 22.247449][ C1] ? rwlock_bug.part.0+0x30/0x90
[ 22.252359][ C1] ? ath9k_hif_usb_rx_cb+0x3a8/0xf80
[ 22.257611][ C1] check_memory_region+0xf4/0x1c0
[ 22.262603][ C1] memcpy+0x20/0x60
[ 22.266380][ C1] ath9k_hif_usb_rx_cb+0x3a8/0xf80
[ 22.271462][ C1] ? kcov_remote_start+0xd6/0x3d0
[ 22.276459][ C1] ? __usb_hcd_giveback_urb+0x302/0x560
[ 22.281975][ C1] ? hif_usb_start+0xa0/0xa0
[ 22.286537][ C1] ? lock_downgrade+0x740/0x740
[ 22.291356][ C1] ? trace_hardirqs_off+0x27/0x1f0
[ 22.296437][ C1] __usb_hcd_giveback_urb+0x32d/0x560
[ 22.301778][ C1] usb_hcd_giveback_urb+0x367/0x410
[ 22.306947][ C1] dummy_timer+0x11f2/0x3240
[ 22.311507][ C1] ? lock_downgrade+0x740/0x740
[ 22.316326][ C1] ? dummy_dequeue+0x490/0x490
[ 22.321063][ C1] call_timer_fn+0x1ac/0x6e0
[ 22.325625][ C1] ? dummy_dequeue+0x490/0x490
[ 22.330358][ C1] ? timer_fixup_init+0x60/0x60
[ 22.335177][ C1] ? lock_downgrade+0x740/0x740
[ 22.340005][ C1] ? _raw_spin_unlock_irq+0x1f/0x30
[ 22.345174][ C1] ? lockdep_hardirqs_on_prepare+0x19c/0x4f0
[ 22.351122][ C1] ? trace_hardirqs_on+0x5f/0x200
[ 22.356135][ C1] ? dummy_dequeue+0x490/0x490
[ 22.360870][ C1] __run_timers.part.0+0x67c/0xa60
[ 22.365950][ C1] ? call_timer_fn+0x6e0/0x6e0
[ 22.370699][ C1] ? clockevents_program_event+0x12b/0x350
[ 22.376474][ C1] ? tick_program_event+0xa8/0x130
[ 22.381555][ C1] run_timer_softirq+0x80/0x120
[ 22.386407][ C1] __do_softirq+0x1af/0x91c
[ 22.390883][ C1] asm_call_on_stack+0xf/0x20
[ 22.395526][ C1]
[ 22.398437][ C1] do_softirq_own_stack+0x73/0x90
[ 22.403432][ C1] irq_exit_rcu+0x107/0x1a0
[ 22.407906][ C1] sysvec_apic_timer_interrupt+0x43/0x90
[ 22.413556][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20
[ 22.419550][ C1] RIP: 0010:acpi_safe_halt+0x72/0x90
[ 22.424807][ C1] Code: 74 06 5b e9 d0 a3 8b fb e8 cb a3 8b fb e8 26 41 91 fb e9 0c 00 00 00 e8 bc a3 8b fb 0f 00 2d 95 5e 70 00 e8 b0 a3 8b fb fb f4 e8 18 3b 91 fb 5b e9 a2 a3 8b fb 48 89 df e8 da 76 b5 fb eb ab
[ 22.444379][ C1] RSP: 0018:ffff8881da267ca8 EFLAGS: 00000293
[ 22.450412][ C1] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 1ffffffff1015a29
[ 22.458356][ C1] RDX: ffff8881da24b200 RSI: ffffffff85b45d30 RDI: ffffffff85b45d1a
[ 22.466297][ C1] RBP: ffff8881d8d7a064 R08: 0000000000000001 R09: 0000000000000001
[ 22.474243][ C1] R10: 0000000000000000 R11: 0000000000000001 R12: ffff8881d8d7a064
[ 22.482185][ C1] R13: 1ffff1103b44cf9e R14: ffff8881d8d7a065 R15: 0000000000000001
[ 22.490131][ C1] ? acpi_safe_halt+0x70/0x90
[ 22.494785][ C1] ? acpi_safe_halt+0x5a/0x90
[ 22.499432][ C1] ? acpi_safe_halt+0x70/0x90
[ 22.504078][ C1] acpi_idle_do_entry+0x15c/0x1b0
[ 22.509073][ C1] acpi_idle_enter+0x3fa/0xa50
[ 22.513809][ C1] ? acpi_idle_enter_s2idle+0x190/0x190
[ 22.519410][ C1] ? kvm_sched_clock_read+0x14/0x30
[ 22.524577][ C1] ? sched_clock+0x5/0x10
[ 22.528875][ C1] ? sched_clock_cpu+0x18/0x170
[ 22.533695][ C1] cpuidle_enter_state+0xff/0x870
[ 22.538690][ C1] ? rcu_read_lock_sched_held+0x3a/0x70
[ 22.544203][ C1] cpuidle_enter+0x4a/0xa0
[ 22.548589][ C1] do_idle+0x3d6/0x5a0
[ 22.552631][ C1] ? arch_cpu_idle_exit+0x40/0x40
[ 22.557628][ C1] ? lockdep_hardirqs_on_prepare+0x322/0x4f0
[ 22.563579][ C1] ? trace_hardirqs_on+0x5f/0x200
[ 22.568576][ C1] cpu_startup_entry+0x14/0x20
[ 22.573310][ C1] start_secondary+0x25b/0x320
[ 22.578045][ C1] ? set_cpu_sibling_map+0x1ff0/0x1ff0
[ 22.583472][ C1] secondary_startup_64+0xb6/0xc0
[ 22.588461][ C1]
[ 22.590759][ C1] The buggy address belongs to the page:
[ 22.596364][ C1] page:00000000ae11d396 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1cd0f0
[ 22.606566][ C1] head:00000000ae11d396 order:3 compound_mapcount:0 compound_pincount:0
[ 22.614857][ C1] flags: 0x200000000010000(head)
[ 22.619767][ C1] raw: 0200000000010000 dead000000000100 dead000000000122 0000000000000000
[ 22.628322][ C1] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[ 22.636871][ C1] page dumped because: kasan: bad access detected
[ 22.643247][ C1]
[ 22.645556][ C1] Memory state around the buggy address:
[ 22.651156][ C1] ffff8881cd0f7f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 22.659186][ C1] ffff8881cd0f7f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 22.667218][ C1] >ffff8881cd0f8000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 22.675258][ C1] ^
[ 22.679295][ C1] ffff8881cd0f8080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 22.687326][ C1] ffff8881cd0f8100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 22.695354][ C1] ==================================================================
[ 22.703380][ C1] Disabling lock debugging due to kernel taint
[ 22.709496][ C1] Kernel panic - not syncing: panic_on_warn set ...
[ 22.716051][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G B 5.8.0-syzkaller #0
[ 22.724946][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 22.734971][ C1] Call Trace:
[ 22.738223][ C1]
[ 22.741046][ C1] dump_stack+0xf6/0x16e
[ 22.745267][ C1] ? ath9k_hif_usb_rx_cb+0x2e0/0xf80
[ 22.750518][ C1] panic+0x2aa/0x6e1
[ 22.754379][ C1] ? __warn_printk+0xf3/0xf3
[ 22.758936][ C1] ? _raw_spin_unlock_irqrestore+0x2a/0x40
[ 22.764708][ C1] ? trace_hardirqs_off+0x27/0x1f0
[ 22.769788][ C1] ? ath9k_hif_usb_rx_cb+0x3a8/0xf80
[ 22.775040][ C1] ? ath9k_hif_usb_rx_cb+0x3a8/0xf80
[ 22.780295][ C1] end_report+0x4d/0x53
[ 22.784419][ C1] kasan_report.cold+0x72/0x7c
[ 22.789168][ C1] ? rwlock_bug.part.0+0x30/0x90
[ 22.794072][ C1] ? ath9k_hif_usb_rx_cb+0x3a8/0xf80
[ 22.799323][ C1] check_memory_region+0xf4/0x1c0
[ 22.804314][ C1] memcpy+0x20/0x60
[ 22.808090][ C1] ath9k_hif_usb_rx_cb+0x3a8/0xf80
[ 22.813170][ C1] ? kcov_remote_start+0xd6/0x3d0
[ 22.818164][ C1] ? __usb_hcd_giveback_urb+0x302/0x560
[ 22.823674][ C1] ? hif_usb_start+0xa0/0xa0
[ 22.828231][ C1] ? lock_downgrade+0x740/0x740
[ 22.833049][ C1] ? trace_hardirqs_off+0x27/0x1f0
[ 22.838128][ C1] __usb_hcd_giveback_urb+0x32d/0x560
[ 22.843468][ C1] usb_hcd_giveback_urb+0x367/0x410
[ 22.848647][ C1] dummy_timer+0x11f2/0x3240
[ 22.853207][ C1] ? lock_downgrade+0x740/0x740
[ 22.858026][ C1] ? dummy_dequeue+0x490/0x490
[ 22.862758][ C1] call_timer_fn+0x1ac/0x6e0
[ 22.867314][ C1] ? dummy_dequeue+0x490/0x490
[ 22.872043][ C1] ? timer_fixup_init+0x60/0x60
[ 22.876862][ C1] ? lock_downgrade+0x740/0x740
[ 22.881679][ C1] ? _raw_spin_unlock_irq+0x1f/0x30
[ 22.886857][ C1] ? lockdep_hardirqs_on_prepare+0x19c/0x4f0
[ 22.892814][ C1] ? trace_hardirqs_on+0x5f/0x200
[ 22.897803][ C1] ? dummy_dequeue+0x490/0x490
[ 22.902532][ C1] __run_timers.part.0+0x67c/0xa60
[ 22.907611][ C1] ? call_timer_fn+0x6e0/0x6e0
[ 22.912343][ C1] ? clockevents_program_event+0x12b/0x350
[ 22.918115][ C1] ? tick_program_event+0xa8/0x130
[ 22.923192][ C1] run_timer_softirq+0x80/0x120
[ 22.928009][ C1] __do_softirq+0x1af/0x91c
[ 22.932481][ C1] asm_call_on_stack+0xf/0x20
[ 22.937120][ C1]
[ 22.940029][ C1] do_softirq_own_stack+0x73/0x90
[ 22.945019][ C1] irq_exit_rcu+0x107/0x1a0
[ 22.949489][ C1] sysvec_apic_timer_interrupt+0x43/0x90
[ 22.955104][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20
[ 22.961054][ C1] RIP: 0010:acpi_safe_halt+0x72/0x90
[ 22.966305][ C1] Code: 74 06 5b e9 d0 a3 8b fb e8 cb a3 8b fb e8 26 41 91 fb e9 0c 00 00 00 e8 bc a3 8b fb 0f 00 2d 95 5e 70 00 e8 b0 a3 8b fb fb f4 e8 18 3b 91 fb 5b e9 a2 a3 8b fb 48 89 df e8 da 76 b5 fb eb ab
[ 22.985876][ C1] RSP: 0018:ffff8881da267ca8 EFLAGS: 00000293
[ 22.991907][ C1] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 1ffffffff1015a29
[ 22.999857][ C1] RDX: ffff8881da24b200 RSI: ffffffff85b45d30 RDI: ffffffff85b45d1a
[ 23.007806][ C1] RBP: ffff8881d8d7a064 R08: 0000000000000001 R09: 0000000000000001
[ 23.015748][ C1] R10: 0000000000000000 R11: 0000000000000001 R12: ffff8881d8d7a064
[ 23.023691][ C1] R13: 1ffff1103b44cf9e R14: ffff8881d8d7a065 R15: 0000000000000001
[ 23.031642][ C1] ? acpi_safe_halt+0x70/0x90
[ 23.036287][ C1] ? acpi_safe_halt+0x5a/0x90
[ 23.040941][ C1] ? acpi_safe_halt+0x70/0x90
[ 23.045604][ C1] acpi_idle_do_entry+0x15c/0x1b0
[ 23.050601][ C1] acpi_idle_enter+0x3fa/0xa50
[ 23.055354][ C1] ? acpi_idle_enter_s2idle+0x190/0x190
[ 23.060869][ C1] ? kvm_sched_clock_read+0x14/0x30
[ 23.066210][ C1] ? sched_clock+0x5/0x10
[ 23.070510][ C1] ? sched_clock_cpu+0x18/0x170
[ 23.075341][ C1] cpuidle_enter_state+0xff/0x870
[ 23.080334][ C1] ? rcu_read_lock_sched_held+0x3a/0x70
[ 23.085846][ C1] cpuidle_enter+0x4a/0xa0
[ 23.090230][ C1] do_idle+0x3d6/0x5a0
[ 23.094287][ C1] ? arch_cpu_idle_exit+0x40/0x40
[ 23.099297][ C1] ? lockdep_hardirqs_on_prepare+0x322/0x4f0
[ 23.105245][ C1] ? trace_hardirqs_on+0x5f/0x200
[ 23.110274][ C1] cpu_startup_entry+0x14/0x20
[ 23.115006][ C1] start_secondary+0x25b/0x320
[ 23.119739][ C1] ? set_cpu_sibling_map+0x1ff0/0x1ff0
[ 23.125203][ C1] secondary_startup_64+0xb6/0xc0
[ 23.131027][ C1] Kernel Offset: disabled
[ 23.135333][ C1] Rebooting in 86400 seconds..