Warning: Permanently added '10.128.0.234' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 23.706728][ T160] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 24.226055][ T160] usb 1-1: New USB device found, idVendor=0cf3, idProduct=9271, bcdDevice= 1.08 [ 24.235188][ T160] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 24.243273][ T160] usb 1-1: Product: syz [ 24.247504][ T160] usb 1-1: Manufacturer: syz [ 24.252100][ T160] usb 1-1: SerialNumber: syz [ 24.296979][ T160] usb 1-1: ath9k_htc: Firmware ath9k_htc/htc_9271-1.4.0.fw requested [ 24.955148][ T160] usb 1-1: ath9k_htc: Transferred FW: ath9k_htc/htc_9271-1.4.0.fw, size: 51008 [ 25.174956][ C0] ================================================================== [ 25.183138][ C0] BUG: KASAN: stack-out-of-bounds in ath9k_hif_usb_rx_cb+0xe11/0xf90 [ 25.191185][ C0] Write of size 8 at addr ffff8881db209a08 by task swapper/0/0 [ 25.198707][ C0] [ 25.201023][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.7.0-rc6-syzkaller #0 [ 25.208897][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.218944][ C0] Call Trace: [ 25.222219][ C0] [ 25.225061][ C0] dump_stack+0xef/0x16e [ 25.229384][ C0] print_address_description.constprop.0.cold+0xd3/0x415 [ 25.236492][ C0] ? __build_skb+0x21/0x60 [ 25.240882][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 25.246988][ C0] ? vprintk_func+0x7d/0x113 [ 25.252829][ C0] ? ath9k_hif_usb_rx_cb+0xe11/0xf90 [ 25.258093][ C0] __kasan_report.cold+0x37/0x7d [ 25.263034][ C0] ? ath9k_hif_usb_rx_cb+0xe11/0xf90 [ 25.268311][ C0] ? ath9k_hif_usb_rx_cb+0xe11/0xf90 [ 25.273732][ C0] kasan_report+0x33/0x50 [ 25.278064][ C0] ath9k_hif_usb_rx_cb+0xe11/0xf90 [ 25.283336][ C0] ? hif_usb_mgmt_cb+0x310/0x310 [ 25.288254][ C0] ? do_raw_read_unlock+0x3b/0x70 [ 25.293314][ C0] ? _raw_read_unlock+0x1a/0x30 [ 25.298138][ C0] __usb_hcd_giveback_urb+0x1f2/0x470 [ 25.303499][ C0] usb_hcd_giveback_urb+0x368/0x420 [ 25.308678][ C0] dummy_timer+0x125e/0x32b4 [ 25.313259][ C0] ? dummy_udc_probe+0x980/0x980 [ 25.318865][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 25.324396][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 25.329745][ C0] call_timer_fn+0x1ac/0x700 [ 25.334329][ C0] ? dummy_udc_probe+0x980/0x980 [ 25.339258][ C0] ? timer_fixup_init+0x60/0x60 [ 25.344082][ C0] ? lock_downgrade+0x720/0x720 [ 25.348904][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 25.354421][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 25.359710][ C0] ? _raw_spin_unlock_irq+0x1f/0x30 [ 25.364879][ C0] ? dummy_udc_probe+0x980/0x980 [ 25.369791][ C0] run_timer_softirq+0x5f9/0x1500 [ 25.374802][ C0] ? add_timer+0x7a0/0x7a0 [ 25.379209][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 25.384749][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 25.390006][ C0] __do_softirq+0x21e/0x9aa [ 25.394483][ C0] irq_exit+0x178/0x1a0 [ 25.398614][ C0] smp_apic_timer_interrupt+0x141/0x540 [ 25.404145][ C0] apic_timer_interrupt+0xf/0x20 [ 25.409051][ C0] [ 25.411964][ C0] RIP: 0010:default_idle+0x28/0x300 [ 25.417139][ C0] Code: cc cc 41 56 41 55 65 44 8b 2d 94 3f 6b 7a 41 54 55 53 0f 1f 44 00 00 e8 06 27 af fb e9 07 00 00 00 0f 00 2d 7a e1 4b 00 fb f4 <65> 44 8b 2d 70 3f 6b 7a 0f 1f 44 00 00 5b 5d 41 5c 41 5d 41 5e c3 [ 25.437118][ C0] RSP: 0018:ffffffff87007da0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 25.446558][ C0] RAX: 0000000000000007 RBX: ffffffff8702f800 RCX: 0000000000000000 [ 25.454607][ C0] RDX: 0000000000000000 RSI: 0000000000000006 RDI: ffffffff8703007c [ 25.462552][ C0] RBP: fffffbfff0e05f00 R08: ffffffff8702f800 R09: 0000000000000000 [ 25.470494][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 25.479057][ C0] R13: 0000000000000000 R14: ffffffff87e88e00 R15: 0000000000000000 [ 25.487011][ C0] do_idle+0x3e0/0x500 [ 25.491054][ C0] ? rcu_read_lock_held+0x9c/0xb0 [ 25.496059][ C0] ? arch_cpu_idle_exit+0x40/0x40 [ 25.501054][ C0] ? schedule+0xe1/0x2b0 [ 25.505278][ C0] cpu_startup_entry+0x14/0x20 [ 25.510013][ C0] start_kernel+0x9bb/0x9f8 [ 25.514490][ C0] ? mem_encrypt_init+0x5/0x5 [ 25.519145][ C0] ? x86_family+0x3d/0x50 [ 25.523455][ C0] ? load_ucode_bsp+0x23d/0x27d [ 25.528276][ C0] secondary_startup_64+0xb6/0xc0 [ 25.533268][ C0] [ 25.535587][ C0] The buggy address belongs to the page: [ 25.541201][ C0] page:ffffea00076c8240 refcount:1 mapcount:0 mapping:00000000610b4f7e index:0x0 [ 25.550275][ C0] flags: 0x200000000001000(reserved) [ 25.555533][ C0] raw: 0200000000001000 ffffea00076c8248 ffffea00076c8248 0000000000000000 [ 25.564100][ C0] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 25.572667][ C0] page dumped because: kasan: bad access detected [ 25.579059][ C0] [ 25.581361][ C0] Memory state around the buggy address: [ 25.586962][ C0] ffff8881db209900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 25.595002][ C0] ffff8881db209980: 00 f1 f1 f1 f1 f1 f1 00 00 00 00 00 00 00 00 00 [ 25.603046][ C0] >ffff8881db209a00: 00 f3 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 [ 25.611099][ C0] ^ [ 25.615407][ C0] ffff8881db209a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 25.623523][ C0] ffff8881db209b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 25.631562][ C0] ================================================================== [ 25.639590][ C0] Disabling lock debugging due to kernel taint [ 25.645794][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 25.652352][ C0] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G B 5.7.0-rc6-syzkaller #0 [ 25.661605][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.671644][ C0] Call Trace: [ 25.674898][ C0] [ 25.677732][ C0] dump_stack+0xef/0x16e [ 25.681945][ C0] panic+0x2aa/0x6e1 [ 25.685822][ C0] ? add_taint.cold+0x16/0x16 [ 25.690468][ C0] ? trace_hardirqs_off+0x50/0x200 [ 25.695561][ C0] ? ath9k_hif_usb_rx_cb+0xe11/0xf90 [ 25.700822][ C0] end_report+0x4d/0x53 [ 25.704946][ C0] __kasan_report.cold+0x72/0x7d [ 25.709859][ C0] ? ath9k_hif_usb_rx_cb+0xe11/0xf90 [ 25.715114][ C0] ? ath9k_hif_usb_rx_cb+0xe11/0xf90 [ 25.720374][ C0] kasan_report+0x33/0x50 [ 25.724671][ C0] ath9k_hif_usb_rx_cb+0xe11/0xf90 [ 25.729758][ C0] ? hif_usb_mgmt_cb+0x310/0x310 [ 25.734675][ C0] ? do_raw_read_unlock+0x3b/0x70 [ 25.739668][ C0] ? _raw_read_unlock+0x1a/0x30 [ 25.744513][ C0] __usb_hcd_giveback_urb+0x1f2/0x470 [ 25.749854][ C0] usb_hcd_giveback_urb+0x368/0x420 [ 25.755030][ C0] dummy_timer+0x125e/0x32b4 [ 25.759617][ C0] ? dummy_udc_probe+0x980/0x980 [ 25.764535][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 25.770049][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 25.775475][ C0] call_timer_fn+0x1ac/0x700 [ 25.780034][ C0] ? dummy_udc_probe+0x980/0x980 [ 25.784949][ C0] ? timer_fixup_init+0x60/0x60 [ 25.789768][ C0] ? lock_downgrade+0x720/0x720 [ 25.794587][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 25.800115][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 25.805368][ C0] ? _raw_spin_unlock_irq+0x1f/0x30 [ 25.813613][ C0] ? dummy_udc_probe+0x980/0x980 [ 25.818532][ C0] run_timer_softirq+0x5f9/0x1500 [ 25.823526][ C0] ? add_timer+0x7a0/0x7a0 [ 25.827955][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 25.833568][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 25.838826][ C0] __do_softirq+0x21e/0x9aa [ 25.843314][ C0] irq_exit+0x178/0x1a0 [ 25.847454][ C0] smp_apic_timer_interrupt+0x141/0x540 [ 25.852986][ C0] apic_timer_interrupt+0xf/0x20 [ 25.857898][ C0] [ 25.860808][ C0] RIP: 0010:default_idle+0x28/0x300 [ 25.865991][ C0] Code: cc cc 41 56 41 55 65 44 8b 2d 94 3f 6b 7a 41 54 55 53 0f 1f 44 00 00 e8 06 27 af fb e9 07 00 00 00 0f 00 2d 7a e1 4b 00 fb f4 <65> 44 8b 2d 70 3f 6b 7a 0f 1f 44 00 00 5b 5d 41 5c 41 5d 41 5e c3 [ 25.885565][ C0] RSP: 0018:ffffffff87007da0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 25.893943][ C0] RAX: 0000000000000007 RBX: ffffffff8702f800 RCX: 0000000000000000 [ 25.901905][ C0] RDX: 0000000000000000 RSI: 0000000000000006 RDI: ffffffff8703007c [ 25.909843][ C0] RBP: fffffbfff0e05f00 R08: ffffffff8702f800 R09: 0000000000000000 [ 25.917796][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 25.926353][ C0] R13: 0000000000000000 R14: ffffffff87e88e00 R15: 0000000000000000 [ 25.934921][ C0] do_idle+0x3e0/0x500 [ 25.938959][ C0] ? rcu_read_lock_held+0x9c/0xb0 [ 25.943954][ C0] ? arch_cpu_idle_exit+0x40/0x40 [ 25.948960][ C0] ? schedule+0xe1/0x2b0 [ 25.953182][ C0] cpu_startup_entry+0x14/0x20 [ 25.957926][ C0] start_kernel+0x9bb/0x9f8 [ 25.962399][ C0] ? mem_encrypt_init+0x5/0x5 [ 25.967056][ C0] ? x86_family+0x3d/0x50 [ 25.971442][ C0] ? load_ucode_bsp+0x23d/0x27d [ 25.976317][ C0] secondary_startup_64+0xb6/0xc0 [ 25.982010][ C0] Kernel Offset: disabled [ 25.986323][ C0] Rebooting in 86400 seconds..