Warning: Permanently added '10.128.0.207' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 23.757027][ T67] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 24.116646][ T67] usb 1-1: config 1 has an invalid descriptor of length 9, skipping remainder of the config [ 24.127026][ T67] usb 1-1: config 1 interface 0 altsetting 0 has 3 endpoint descriptors, different from the interface descriptor's value: 6 [ 24.296452][ T67] usb 1-1: New USB device found, idVendor=0cf3, idProduct=9271, bcdDevice= 1.08 [ 24.305742][ T67] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 24.313885][ T67] usb 1-1: Product: syz [ 24.318144][ T67] usb 1-1: Manufacturer: syz [ 24.322768][ T67] usb 1-1: SerialNumber: syz [ 24.367478][ T67] usb 1-1: ath9k_htc: Firmware ath9k_htc/htc_9271-1.4.0.fw requested [ 25.005628][ T67] usb 1-1: ath9k_htc: Transferred FW: ath9k_htc/htc_9271-1.4.0.fw, size: 51008 [ 25.425126][ C1] ================================================================== [ 25.433388][ C1] BUG: KASAN: use-after-free in ath9k_hif_usb_rx_cb+0x3b1/0x1050 [ 25.441192][ C1] Read of size 48644 at addr ffff8881cde98000 by task swapper/1/0 [ 25.452209][ C1] [ 25.454630][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.8.0-rc1-syzkaller #0 [ 25.462731][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.473813][ C1] Call Trace: [ 25.477171][ C1] [ 25.480098][ C1] dump_stack+0xf6/0x16e [ 25.484333][ C1] ? ath9k_hif_usb_rx_cb+0x3b1/0x1050 [ 25.490646][ C1] ? ath9k_hif_usb_rx_cb+0x3b1/0x1050 [ 25.496110][ C1] print_address_description.constprop.0.cold+0xd3/0x415 [ 25.503127][ C1] ? ath9k_hif_usb_rx_cb+0x247/0x1050 [ 25.508511][ C1] ? vprintk_func+0x93/0x133 [ 25.513112][ C1] ? ath9k_hif_usb_rx_cb+0x3b1/0x1050 [ 25.518557][ C1] kasan_report.cold+0x37/0x7c [ 25.523314][ C1] ? rwlock_bug.part.0+0x40/0x90 [ 25.528264][ C1] ? ath9k_hif_usb_rx_cb+0x3b1/0x1050 [ 25.533659][ C1] check_memory_region+0x173/0x1d0 [ 25.538800][ C1] memcpy+0x20/0x60 [ 25.542614][ C1] ath9k_hif_usb_rx_cb+0x3b1/0x1050 [ 25.547806][ C1] ? lock_acquire+0x18b/0x7c0 [ 25.552464][ C1] ? kcov_remote_start+0xd9/0x390 [ 25.558962][ C1] ? __usb_hcd_giveback_urb+0x26f/0x550 [ 25.564697][ C1] ? hif_usb_mgmt_cb+0x310/0x310 [ 25.569630][ C1] ? do_raw_spin_lock+0x120/0x290 [ 25.574656][ C1] ? lock_downgrade+0x720/0x720 [ 25.579504][ C1] ? trace_hardirqs_off+0x27/0x1f0 [ 25.584686][ C1] __usb_hcd_giveback_urb+0x29a/0x550 [ 25.590160][ C1] usb_hcd_giveback_urb+0x368/0x420 [ 25.595366][ C1] dummy_timer+0x125e/0x32b4 [ 25.600028][ C1] ? dummy_udc_probe+0x980/0x980 [ 25.604968][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 25.610522][ C1] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 25.615950][ C1] call_timer_fn+0x1ac/0x6e0 [ 25.620574][ C1] ? dummy_udc_probe+0x980/0x980 [ 25.625490][ C1] ? msleep_interruptible+0x130/0x130 [ 25.631070][ C1] ? lock_downgrade+0x720/0x720 [ 25.635926][ C1] ? _raw_spin_unlock_irq+0x1f/0x30 [ 25.641101][ C1] ? lockdep_hardirqs_on_prepare+0x1bc/0x550 [ 25.647075][ C1] ? dummy_udc_probe+0x980/0x980 [ 25.652002][ C1] run_timer_softirq+0x5e5/0x14c0 [ 25.657102][ C1] ? add_timer+0x7b0/0x7b0 [ 25.661508][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 25.667062][ C1] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 25.672357][ C1] ? lockdep_hardirqs_on_prepare+0x1bc/0x550 [ 25.678347][ C1] __do_softirq+0x21e/0x996 [ 25.682902][ C1] asm_call_on_stack+0xf/0x20 [ 25.688387][ C1] [ 25.691453][ C1] do_softirq_own_stack+0x109/0x140 [ 25.696723][ C1] irq_exit_rcu+0x16f/0x1a0 [ 25.701230][ C1] sysvec_apic_timer_interrupt+0xd3/0x1b0 [ 25.706958][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 25.713021][ C1] RIP: 0010:acpi_safe_halt+0x72/0x90 [ 25.718584][ C1] Code: 74 06 5b e9 c0 32 9f fb e8 bb 32 9f fb e8 c6 96 a4 fb e9 0c 00 00 00 e8 ac 32 9f fb 0f 00 2d 45 6e 84 00 e8 a0 32 9f fb fb f4 e8 b8 94 a4 fb 5b e9 92 32 9f fb 48 89 df e8 7a e1 c8 fb eb ab [ 25.738287][ C1] RSP: 0018:ffff8881da22fc60 EFLAGS: 00000293 [ 25.744335][ C1] RAX: ffff8881da213200 RBX: 0000000000000000 RCX: 1ffffffff1014efa [ 25.753096][ C1] RDX: 0000000000000000 RSI: ffffffff85a03aa0 RDI: ffff8881da213a38 [ 25.761064][ C1] RBP: ffff8881d8cca864 R08: 0000000000000000 R09: 0000000000000001 [ 25.769142][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881d8cca864 [ 25.777106][ C1] R13: 1ffff1103b445f96 R14: ffff8881d8cca865 R15: 0000000000000001 [ 25.785062][ C1] ? acpi_safe_halt+0x70/0x90 [ 25.789716][ C1] acpi_idle_do_entry+0xa9/0xe0 [ 25.794566][ C1] acpi_idle_enter+0x42b/0xac0 [ 25.799381][ C1] ? acpi_idle_enter_s2idle+0x190/0x190 [ 25.804910][ C1] ? kvm_sched_clock_read+0x14/0x30 [ 25.810127][ C1] ? sched_clock+0x5/0x10 [ 25.814531][ C1] ? sched_clock_cpu+0x18/0x170 [ 25.819360][ C1] cpuidle_enter_state+0xdb/0xc20 [ 25.824383][ C1] ? tick_nohz_idle_stop_tick+0x54f/0xb50 [ 25.830201][ C1] cpuidle_enter+0x4a/0xa0 [ 25.834616][ C1] do_idle+0x3c2/0x500 [ 25.838662][ C1] ? arch_cpu_idle_exit+0x40/0x40 [ 25.843749][ C1] cpu_startup_entry+0x14/0x20 [ 25.848509][ C1] start_secondary+0x294/0x370 [ 25.853561][ C1] ? set_cpu_sibling_map+0x1e90/0x1e90 [ 25.859025][ C1] secondary_startup_64+0xb6/0xc0 [ 25.864028][ C1] [ 25.866570][ C1] The buggy address belongs to the page: [ 25.872218][ C1] page:ffffea000737a600 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 head:ffffea000737a600 order:3 compound_mapcount:0 compound_pincount:0 [ 25.889469][ C1] flags: 0x200000000010000(head) [ 25.894721][ C1] raw: 0200000000010000 dead000000000100 dead000000000122 0000000000000000 [ 25.903675][ C1] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 25.912439][ C1] page dumped because: kasan: bad access detected [ 25.919291][ C1] [ 25.921708][ C1] Memory state around the buggy address: [ 25.927320][ C1] ffff8881cde9ff00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 25.935502][ C1] ffff8881cde9ff80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 25.943724][ C1] >ffff8881cdea0000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 25.951782][ C1] ^ [ 25.955898][ C1] ffff8881cdea0080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 25.964043][ C1] ffff8881cdea0100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 25.972252][ C1] ================================================================== [ 25.980326][ C1] Disabling lock debugging due to kernel taint [ 25.986674][ C1] Kernel panic - not syncing: panic_on_warn set ... [ 25.993345][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G B 5.8.0-rc1-syzkaller #0 [ 26.002649][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.013111][ C1] Call Trace: [ 26.016673][ C1] [ 26.019611][ C1] dump_stack+0xf6/0x16e [ 26.023843][ C1] ? ath9k_hif_usb_rx_cb+0x330/0x1050 [ 26.029195][ C1] panic+0x2aa/0x6e1 [ 26.033082][ C1] ? __warn_printk+0xf3/0xf3 [ 26.037671][ C1] ? _raw_spin_unlock_irqrestore+0x2a/0x40 [ 26.043451][ C1] ? trace_hardirqs_off+0x27/0x1f0 [ 26.048552][ C1] ? ath9k_hif_usb_rx_cb+0x3b1/0x1050 [ 26.054069][ C1] ? ath9k_hif_usb_rx_cb+0x3b1/0x1050 [ 26.059413][ C1] end_report+0x4d/0x53 [ 26.063802][ C1] kasan_report.cold+0x72/0x7c [ 26.068554][ C1] ? rwlock_bug.part.0+0x40/0x90 [ 26.073819][ C1] ? ath9k_hif_usb_rx_cb+0x3b1/0x1050 [ 26.079163][ C1] check_memory_region+0x173/0x1d0 [ 26.084781][ C1] memcpy+0x20/0x60 [ 26.088589][ C1] ath9k_hif_usb_rx_cb+0x3b1/0x1050 [ 26.094204][ C1] ? lock_acquire+0x18b/0x7c0 [ 26.098877][ C1] ? kcov_remote_start+0xd9/0x390 [ 26.104351][ C1] ? __usb_hcd_giveback_urb+0x26f/0x550 [ 26.109886][ C1] ? hif_usb_mgmt_cb+0x310/0x310 [ 26.114798][ C1] ? do_raw_spin_lock+0x120/0x290 [ 26.119805][ C1] ? lock_downgrade+0x720/0x720 [ 26.124634][ C1] ? trace_hardirqs_off+0x27/0x1f0 [ 26.129738][ C1] __usb_hcd_giveback_urb+0x29a/0x550 [ 26.135094][ C1] usb_hcd_giveback_urb+0x368/0x420 [ 26.140296][ C1] dummy_timer+0x125e/0x32b4 [ 26.144906][ C1] ? dummy_udc_probe+0x980/0x980 [ 26.149920][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 26.155448][ C1] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 26.160723][ C1] call_timer_fn+0x1ac/0x6e0 [ 26.165322][ C1] ? dummy_udc_probe+0x980/0x980 [ 26.170345][ C1] ? msleep_interruptible+0x130/0x130 [ 26.175875][ C1] ? lock_downgrade+0x720/0x720 [ 26.180818][ C1] ? _raw_spin_unlock_irq+0x1f/0x30 [ 26.186187][ C1] ? lockdep_hardirqs_on_prepare+0x1bc/0x550 [ 26.192299][ C1] ? dummy_udc_probe+0x980/0x980 [ 26.197325][ C1] run_timer_softirq+0x5e5/0x14c0 [ 26.202391][ C1] ? add_timer+0x7b0/0x7b0 [ 26.209057][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 26.214754][ C1] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 26.220024][ C1] ? lockdep_hardirqs_on_prepare+0x1bc/0x550 [ 26.225979][ C1] __do_softirq+0x21e/0x996 [ 26.230477][ C1] asm_call_on_stack+0xf/0x20 [ 26.235136][ C1] [ 26.238061][ C1] do_softirq_own_stack+0x109/0x140 [ 26.243595][ C1] irq_exit_rcu+0x16f/0x1a0 [ 26.248512][ C1] sysvec_apic_timer_interrupt+0xd3/0x1b0 [ 26.254213][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 26.260167][ C1] RIP: 0010:acpi_safe_halt+0x72/0x90 [ 26.265533][ C1] Code: 74 06 5b e9 c0 32 9f fb e8 bb 32 9f fb e8 c6 96 a4 fb e9 0c 00 00 00 e8 ac 32 9f fb 0f 00 2d 45 6e 84 00 e8 a0 32 9f fb fb f4 e8 b8 94 a4 fb 5b e9 92 32 9f fb 48 89 df e8 7a e1 c8 fb eb ab [ 26.285754][ C1] RSP: 0018:ffff8881da22fc60 EFLAGS: 00000293 [ 26.291789][ C1] RAX: ffff8881da213200 RBX: 0000000000000000 RCX: 1ffffffff1014efa [ 26.300036][ C1] RDX: 0000000000000000 RSI: ffffffff85a03aa0 RDI: ffff8881da213a38 [ 26.307998][ C1] RBP: ffff8881d8cca864 R08: 0000000000000000 R09: 0000000000000001 [ 26.316473][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881d8cca864 [ 26.324609][ C1] R13: 1ffff1103b445f96 R14: ffff8881d8cca865 R15: 0000000000000001 [ 26.332572][ C1] ? acpi_safe_halt+0x70/0x90 [ 26.337649][ C1] acpi_idle_do_entry+0xa9/0xe0 [ 26.342568][ C1] acpi_idle_enter+0x42b/0xac0 [ 26.347311][ C1] ? acpi_idle_enter_s2idle+0x190/0x190 [ 26.353327][ C1] ? kvm_sched_clock_read+0x14/0x30 [ 26.358503][ C1] ? sched_clock+0x5/0x10 [ 26.362827][ C1] ? sched_clock_cpu+0x18/0x170 [ 26.367700][ C1] cpuidle_enter_state+0xdb/0xc20 [ 26.372713][ C1] ? tick_nohz_idle_stop_tick+0x54f/0xb50 [ 26.378688][ C1] cpuidle_enter+0x4a/0xa0 [ 26.383094][ C1] do_idle+0x3c2/0x500 [ 26.387167][ C1] ? arch_cpu_idle_exit+0x40/0x40 [ 26.392174][ C1] cpu_startup_entry+0x14/0x20 [ 26.396910][ C1] start_secondary+0x294/0x370 [ 26.401685][ C1] ? set_cpu_sibling_map+0x1e90/0x1e90 [ 26.407113][ C1] secondary_startup_64+0xb6/0xc0 [ 26.413268][ C1] Kernel Offset: disabled [ 26.417704][ C1] Rebooting in 86400 seconds..