[ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.11' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 69.386101][ T5] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 69.746115][ T5] usb 1-1: config 1 has an invalid descriptor of length 9, skipping remainder of the config [ 69.756429][ T5] usb 1-1: config 1 interface 0 altsetting 0 has 3 endpoint descriptors, different from the interface descriptor's value: 6 [ 69.926092][ T5] usb 1-1: New USB device found, idVendor=0cf3, idProduct=9271, bcdDevice= 1.08 [ 69.935245][ T5] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 69.944164][ T5] usb 1-1: Product: syz [ 69.948860][ T5] usb 1-1: Manufacturer: syz [ 69.953479][ T5] usb 1-1: SerialNumber: syz [ 69.998248][ T5] usb 1-1: ath9k_htc: Firmware ath9k_htc/htc_9271-1.4.0.fw requested [ 70.605888][ T5] usb 1-1: ath9k_htc: Transferred FW: ath9k_htc/htc_9271-1.4.0.fw, size: 51008 [ 71.045811][ C0] ================================================================== [ 71.054044][ C0] BUG: KASAN: use-after-free in ath9k_hif_usb_rx_cb+0x3ab/0x1020 [ 71.061767][ C0] Read of size 40655 at addr ffff888018980000 by task swapper/0/0 [ 71.069573][ C0] [ 71.071886][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.10.0-rc4-syzkaller #0 [ 71.079835][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.089883][ C0] Call Trace: [ 71.093143][ C0] [ 71.095978][ C0] dump_stack+0x107/0x163 [ 71.100287][ C0] ? ath9k_hif_usb_rx_cb+0x3ab/0x1020 [ 71.105643][ C0] ? ath9k_hif_usb_rx_cb+0x3ab/0x1020 [ 71.111003][ C0] print_address_description.constprop.0.cold+0xae/0x4c8 [ 71.118008][ C0] ? vprintk_func+0x95/0x1e0 [ 71.122578][ C0] ? ath9k_hif_usb_rx_cb+0x3ab/0x1020 [ 71.127925][ C0] ? ath9k_hif_usb_rx_cb+0x3ab/0x1020 [ 71.133304][ C0] kasan_report.cold+0x1f/0x37 [ 71.138071][ C0] ? spin_bug+0xd0/0x100 [ 71.142289][ C0] ? ath9k_hif_usb_rx_cb+0x3ab/0x1020 [ 71.147641][ C0] check_memory_region+0x13d/0x180 [ 71.152730][ C0] memcpy+0x20/0x60 [ 71.156517][ C0] ath9k_hif_usb_rx_cb+0x3ab/0x1020 [ 71.161702][ C0] ? hif_usb_start+0xa0/0xa0 [ 71.166269][ C0] ? __usb_hcd_giveback_urb+0x302/0x560 [ 71.171789][ C0] ? lock_downgrade+0x6d0/0x6d0 [ 71.176626][ C0] ? kcov_remote_start+0xce/0x450 [ 71.181646][ C0] __usb_hcd_giveback_urb+0x32d/0x560 [ 71.187000][ C0] usb_hcd_giveback_urb+0x367/0x410 [ 71.192179][ C0] dummy_timer+0x11f4/0x3280 [ 71.196769][ C0] ? dummy_dequeue+0x4c0/0x4c0 [ 71.201531][ C0] ? dummy_dequeue+0x4c0/0x4c0 [ 71.206274][ C0] call_timer_fn+0x1a5/0x6b0 [ 71.210845][ C0] ? add_timer_on+0x4a0/0x4a0 [ 71.215523][ C0] ? lock_downgrade+0x6d0/0x6d0 [ 71.220358][ C0] ? _raw_spin_unlock_irq+0x1f/0x40 [ 71.225532][ C0] ? dummy_dequeue+0x4c0/0x4c0 [ 71.230281][ C0] __run_timers.part.0+0x67c/0xa50 [ 71.235375][ C0] ? call_timer_fn+0x6b0/0x6b0 [ 71.240117][ C0] ? lapic_next_event+0x4d/0x80 [ 71.244949][ C0] ? kvm_sched_clock_read+0x14/0x40 [ 71.250134][ C0] ? sched_clock+0x2a/0x40 [ 71.254528][ C0] ? sched_clock_cpu+0x18/0x1f0 [ 71.259362][ C0] run_timer_softirq+0xb3/0x1d0 [ 71.264191][ C0] __do_softirq+0x2a0/0x9f6 [ 71.268678][ C0] asm_call_irq_on_stack+0xf/0x20 [ 71.273689][ C0] [ 71.276608][ C0] do_softirq_own_stack+0xaa/0xd0 [ 71.281622][ C0] irq_exit_rcu+0x132/0x200 [ 71.286108][ C0] sysvec_apic_timer_interrupt+0x4d/0x100 [ 71.291805][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 71.297765][ C0] RIP: 0010:acpi_idle_do_entry+0x1c9/0x250 [ 71.303547][ C0] Code: 7d 44 88 f8 84 db 75 ac e8 64 4c 88 f8 e8 1f 0b 8e f8 e9 0c 00 00 00 e8 55 4c 88 f8 0f 00 2d 4e 97 c0 00 e8 49 4c 88 f8 fb f4 <9c> 5b 81 e3 00 02 00 00 fa 31 ff 48 89 de e8 a4 44 88 f8 48 85 db [ 71.323145][ C0] RSP: 0018:ffffffff8b007d60 EFLAGS: 00000293 [ 71.329191][ C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 1ffffffff19d8f61 [ 71.337142][ C0] RDX: ffffffff8b09af80 RSI: ffffffff88e7e397 RDI: 0000000000000000 [ 71.345090][ C0] RBP: ffff8880149a9864 R08: 0000000000000001 R09: 0000000000000001 [ 71.353040][ C0] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001 [ 71.360992][ C0] R13: ffff8880149a9800 R14: ffff8880149a9864 R15: ffff888142e94004 [ 71.368960][ C0] ? acpi_idle_do_entry+0x1c7/0x250 [ 71.374141][ C0] acpi_idle_enter+0x361/0x500 [ 71.378909][ C0] cpuidle_enter_state+0x1b1/0xc80 [ 71.384002][ C0] cpuidle_enter+0x4a/0xa0 [ 71.388414][ C0] do_idle+0x3e1/0x590 [ 71.392476][ C0] ? arch_cpu_idle_exit+0x40/0x40 [ 71.397495][ C0] ? trace_init_perf_perm_irq_work_exit+0xe/0xe [ 71.403717][ C0] cpu_startup_entry+0x14/0x20 [ 71.408475][ C0] start_kernel+0x470/0x491 [ 71.412961][ C0] secondary_startup_64_no_verify+0xb0/0xbb [ 71.418838][ C0] [ 71.421141][ C0] The buggy address belongs to the page: [ 71.426754][ C0] page:0000000094165723 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x18980 [ 71.436875][ C0] head:0000000094165723 order:3 compound_mapcount:0 compound_pincount:0 [ 71.445171][ C0] flags: 0xfff00000010000(head) [ 71.450000][ C0] raw: 00fff00000010000 dead000000000100 dead000000000122 0000000000000000 [ 71.458561][ C0] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 71.467128][ C0] page dumped because: kasan: bad access detected [ 71.473511][ C0] [ 71.475827][ C0] Memory state around the buggy address: [ 71.481434][ C0] ffff888018987f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 71.489496][ C0] ffff888018987f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 71.497533][ C0] >ffff888018988000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 71.505581][ C0] ^ [ 71.509623][ C0] ffff888018988080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 71.517661][ C0] ffff888018988100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 71.525694][ C0] ================================================================== [ 71.533726][ C0] Disabling lock debugging due to kernel taint [ 71.539848][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 71.546419][ C0] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G B 5.10.0-rc4-syzkaller #0 [ 71.555755][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.565779][ C0] Call Trace: [ 71.569050][ C0] [ 71.571894][ C0] dump_stack+0x107/0x163 [ 71.576210][ C0] ? ath9k_hif_usb_rx_cb+0x340/0x1020 [ 71.581553][ C0] panic+0x306/0x73d [ 71.585420][ C0] ? __warn_printk+0xf3/0xf3 [ 71.590004][ C0] ? ath9k_hif_usb_rx_cb+0x3ab/0x1020 [ 71.595345][ C0] ? ath9k_hif_usb_rx_cb+0x3ab/0x1020 [ 71.600698][ C0] end_report+0x58/0x5e [ 71.604838][ C0] kasan_report.cold+0xd/0x37 [ 71.609488][ C0] ? spin_bug+0xd0/0x100 [ 71.613701][ C0] ? ath9k_hif_usb_rx_cb+0x3ab/0x1020 [ 71.619045][ C0] check_memory_region+0x13d/0x180 [ 71.624128][ C0] memcpy+0x20/0x60 [ 71.627909][ C0] ath9k_hif_usb_rx_cb+0x3ab/0x1020 [ 71.633098][ C0] ? hif_usb_start+0xa0/0xa0 [ 71.637660][ C0] ? __usb_hcd_giveback_urb+0x302/0x560 [ 71.643177][ C0] ? lock_downgrade+0x6d0/0x6d0 [ 71.648002][ C0] ? kcov_remote_start+0xce/0x450 [ 71.652998][ C0] __usb_hcd_giveback_urb+0x32d/0x560 [ 71.658340][ C0] usb_hcd_giveback_urb+0x367/0x410 [ 71.663520][ C0] dummy_timer+0x11f4/0x3280 [ 71.668087][ C0] ? dummy_dequeue+0x4c0/0x4c0 [ 71.672820][ C0] ? dummy_dequeue+0x4c0/0x4c0 [ 71.677555][ C0] call_timer_fn+0x1a5/0x6b0 [ 71.682119][ C0] ? add_timer_on+0x4a0/0x4a0 [ 71.686766][ C0] ? lock_downgrade+0x6d0/0x6d0 [ 71.691593][ C0] ? _raw_spin_unlock_irq+0x1f/0x40 [ 71.696772][ C0] ? dummy_dequeue+0x4c0/0x4c0 [ 71.701514][ C0] __run_timers.part.0+0x67c/0xa50 [ 71.706622][ C0] ? call_timer_fn+0x6b0/0x6b0 [ 71.711358][ C0] ? lapic_next_event+0x4d/0x80 [ 71.716181][ C0] ? kvm_sched_clock_read+0x14/0x40 [ 71.721361][ C0] ? sched_clock+0x2a/0x40 [ 71.725750][ C0] ? sched_clock_cpu+0x18/0x1f0 [ 71.730574][ C0] run_timer_softirq+0xb3/0x1d0 [ 71.735396][ C0] __do_softirq+0x2a0/0x9f6 [ 71.739873][ C0] asm_call_irq_on_stack+0xf/0x20 [ 71.744862][ C0] [ 71.747778][ C0] do_softirq_own_stack+0xaa/0xd0 [ 71.752772][ C0] irq_exit_rcu+0x132/0x200 [ 71.757249][ C0] sysvec_apic_timer_interrupt+0x4d/0x100 [ 71.762954][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 71.768907][ C0] RIP: 0010:acpi_idle_do_entry+0x1c9/0x250 [ 71.774684][ C0] Code: 7d 44 88 f8 84 db 75 ac e8 64 4c 88 f8 e8 1f 0b 8e f8 e9 0c 00 00 00 e8 55 4c 88 f8 0f 00 2d 4e 97 c0 00 e8 49 4c 88 f8 fb f4 <9c> 5b 81 e3 00 02 00 00 fa 31 ff 48 89 de e8 a4 44 88 f8 48 85 db [ 71.794261][ C0] RSP: 0018:ffffffff8b007d60 EFLAGS: 00000293 [ 71.800304][ C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 1ffffffff19d8f61 [ 71.808250][ C0] RDX: ffffffff8b09af80 RSI: ffffffff88e7e397 RDI: 0000000000000000 [ 71.816197][ C0] RBP: ffff8880149a9864 R08: 0000000000000001 R09: 0000000000000001 [ 71.824140][ C0] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001 [ 71.832083][ C0] R13: ffff8880149a9800 R14: ffff8880149a9864 R15: ffff888142e94004 [ 71.840036][ C0] ? acpi_idle_do_entry+0x1c7/0x250 [ 71.845208][ C0] acpi_idle_enter+0x361/0x500 [ 71.849959][ C0] cpuidle_enter_state+0x1b1/0xc80 [ 71.855048][ C0] cpuidle_enter+0x4a/0xa0 [ 71.859497][ C0] do_idle+0x3e1/0x590 [ 71.863548][ C0] ? arch_cpu_idle_exit+0x40/0x40 [ 71.868550][ C0] ? trace_init_perf_perm_irq_work_exit+0xe/0xe [ 71.874765][ C0] cpu_startup_entry+0x14/0x20 [ 71.879728][ C0] start_kernel+0x470/0x491 [ 71.884208][ C0] secondary_startup_64_no_verify+0xb0/0xbb [ 71.890645][ C0] Kernel Offset: disabled [ 71.894952][ C0] Rebooting in 86400 seconds..