[ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Warning: Permanently added '10.128.1.101' (ECDSA) to the list of known hosts. executing program [ 80.932899][ T37] audit: type=1400 audit(1617112029.392:8): avc: denied { execmem } for pid=8386 comm="syz-executor580" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 81.206775][ T5] usb 1-1: new high-speed USB device number 2 using dummy_hcd Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 81.747009][ T5] usb 1-1: New USB device found, idVendor=0cf3, idProduct=9271, bcdDevice= 1.08 [ 81.756268][ T5] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 81.765387][ T5] usb 1-1: Product: syz [ 81.770167][ T5] usb 1-1: Manufacturer: syz [ 81.774751][ T5] usb 1-1: SerialNumber: syz [ 81.819186][ T5] usb 1-1: ath9k_htc: Firmware ath9k_htc/htc_9271-1.4.0.fw requested [ 82.436656][ T5] usb 1-1: ath9k_htc: Transferred FW: ath9k_htc/htc_9271-1.4.0.fw, size: 51008 [ 82.876746][ C0] ================================================================== [ 82.885032][ C0] BUG: KASAN: slab-out-of-bounds in ath9k_hif_usb_rx_cb+0x3d3/0x1050 [ 82.893123][ C0] Read of size 48856 at addr ffff8880391b0000 by task swapper/0/0 [ 82.900907][ C0] [ 82.903212][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.12.0-rc5-syzkaller #0 [ 82.911168][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 82.921242][ C0] Call Trace: [ 82.924517][ C0] [ 82.927346][ C0] dump_stack+0x141/0x1d7 [ 82.931786][ C0] ? ath9k_hif_usb_rx_cb+0x3d3/0x1050 [ 82.937162][ C0] print_address_description.constprop.0.cold+0x5b/0x2c6 [ 82.944175][ C0] ? ath9k_hif_usb_rx_cb+0x3d3/0x1050 [ 82.949535][ C0] ? ath9k_hif_usb_rx_cb+0x3d3/0x1050 [ 82.954905][ C0] kasan_report.cold+0x7c/0xd8 [ 82.959669][ C0] ? rwlock_bug.part.0+0x80/0x90 [ 82.964597][ C0] ? ath9k_hif_usb_rx_cb+0x3d3/0x1050 [ 82.969955][ C0] kasan_check_range+0x13d/0x180 [ 82.974915][ C0] memcpy+0x20/0x60 [ 82.978743][ C0] ath9k_hif_usb_rx_cb+0x3d3/0x1050 [ 82.983968][ C0] ? hif_usb_start+0xa0/0xa0 [ 82.988542][ C0] ? __usb_hcd_giveback_urb+0x413/0x5c0 [ 82.994080][ C0] ? lock_downgrade+0x6e0/0x6e0 [ 82.998920][ C0] __usb_hcd_giveback_urb+0x2b0/0x5c0 [ 83.004282][ C0] usb_hcd_giveback_urb+0x367/0x410 [ 83.009518][ C0] dummy_timer+0x11f4/0x32a0 [ 83.014112][ C0] ? dummy_dequeue+0x500/0x500 [ 83.018866][ C0] ? dummy_dequeue+0x500/0x500 [ 83.023624][ C0] call_timer_fn+0x1a5/0x6b0 [ 83.028207][ C0] ? add_timer_on+0x4a0/0x4a0 [ 83.032868][ C0] ? lock_downgrade+0x6e0/0x6e0 [ 83.037704][ C0] ? _raw_spin_unlock_irq+0x1f/0x40 [ 83.042905][ C0] ? dummy_dequeue+0x500/0x500 [ 83.047656][ C0] __run_timers.part.0+0x67c/0xa50 [ 83.052760][ C0] ? call_timer_fn+0x6b0/0x6b0 [ 83.057510][ C0] ? lapic_next_event+0x4d/0x80 [ 83.062357][ C0] ? kvm_sched_clock_read+0x14/0x40 [ 83.067545][ C0] ? sched_clock+0x2a/0x40 [ 83.071948][ C0] ? sched_clock_cpu+0x18/0x1f0 [ 83.076796][ C0] run_timer_softirq+0xb3/0x1d0 [ 83.081631][ C0] __do_softirq+0x29b/0x9f6 [ 83.086141][ C0] irq_exit_rcu+0x134/0x200 [ 83.090637][ C0] sysvec_apic_timer_interrupt+0x93/0xc0 [ 83.096258][ C0] [ 83.099176][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 83.105145][ C0] RIP: 0010:acpi_idle_do_entry+0x1c9/0x250 [ 83.110956][ C0] Code: fd 06 6e f8 84 db 75 ac e8 e4 fe 6d f8 e8 bf ee 73 f8 e9 0c 00 00 00 e8 d5 fe 6d f8 0f 00 2d 8e 8a c7 00 e8 c9 fe 6d f8 fb f4 <9c> 5b 81 e3 00 02 00 00 fa 31 ff 48 89 de e8 74 05 6e f8 48 85 db [ 83.130545][ C0] RSP: 0018:ffffffff8bc07d60 EFLAGS: 00000293 [ 83.136596][ C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 83.144551][ C0] RDX: ffffffff8bcbc400 RSI: ffffffff89052737 RDI: 0000000000000000 [ 83.152505][ C0] RBP: ffff888141526864 R08: 0000000000000001 R09: 0000000000000001 [ 83.160457][ C0] R10: ffffffff81791618 R11: 0000000000000000 R12: 0000000000000001 [ 83.168408][ C0] R13: ffff888141526800 R14: ffff888141526864 R15: ffff888018c15004 [ 83.176362][ C0] ? trace_hardirqs_on+0x38/0x1c0 [ 83.181378][ C0] ? acpi_idle_do_entry+0x1c7/0x250 [ 83.186560][ C0] acpi_idle_enter+0x361/0x500 [ 83.191310][ C0] cpuidle_enter_state+0x1b1/0xc80 [ 83.196410][ C0] cpuidle_enter+0x4a/0xa0 [ 83.200821][ C0] do_idle+0x3e1/0x590 [ 83.204873][ C0] ? arch_cpu_idle_exit+0x30/0x30 [ 83.209878][ C0] ? trace_init_perf_perm_irq_work_exit+0xe/0xe [ 83.216104][ C0] cpu_startup_entry+0x14/0x20 [ 83.220851][ C0] start_kernel+0x475/0x496 [ 83.225341][ C0] secondary_startup_64_no_verify+0xb0/0xbb [ 83.231219][ C0] [ 83.233528][ C0] Allocated by task 5: [ 83.237574][ C0] kasan_save_stack+0x1b/0x40 [ 83.242236][ C0] __kasan_kmalloc+0x96/0xc0 [ 83.246810][ C0] __alloc_skb+0xde/0x340 [ 83.251126][ C0] ath9k_hif_usb_alloc_urbs+0x665/0x1040 [ 83.256746][ C0] ath9k_hif_usb_firmware_cb+0x148/0x530 [ 83.262363][ C0] request_firmware_work_func+0x12c/0x230 [ 83.268064][ C0] process_one_work+0x98d/0x1600 [ 83.272989][ C0] worker_thread+0x64c/0x1120 [ 83.277654][ C0] kthread+0x3b1/0x4a0 [ 83.281707][ C0] ret_from_fork+0x1f/0x30 [ 83.286111][ C0] [ 83.288415][ C0] The buggy address belongs to the object at ffff8880391b0000 [ 83.288415][ C0] which belongs to the cache kmalloc-32k of size 32768 [ 83.302619][ C0] The buggy address is located 0 bytes inside of [ 83.302619][ C0] 32768-byte region [ffff8880391b0000, ffff8880391b8000) [ 83.315869][ C0] The buggy address belongs to the page: [ 83.321486][ C0] page:ffffea0000e46c00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x391b0 [ 83.331622][ C0] head:ffffea0000e46c00 order:4 compound_mapcount:0 compound_pincount:0 [ 83.339923][ C0] flags: 0xfff00000010200(slab|head) [ 83.345197][ C0] raw: 00fff00000010200 ffffea0000e46808 ffffea0000e47008 ffff888010840c00 [ 83.353761][ C0] raw: 0000000000000000 ffff8880391b0000 0000000100000001 0000000000000000 [ 83.362316][ C0] page dumped because: kasan: bad access detected [ 83.368702][ C0] [ 83.371006][ C0] Memory state around the buggy address: [ 83.376612][ C0] ffff8880391b7f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 83.384652][ C0] ffff8880391b7f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 83.392690][ C0] >ffff8880391b8000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 83.400726][ C0] ^ [ 83.404771][ C0] ffff8880391b8080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 83.412808][ C0] ffff8880391b8100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 83.420844][ C0] ================================================================== [ 83.428879][ C0] Disabling lock debugging due to kernel taint [ 83.435004][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 83.441561][ C0] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G B 5.12.0-rc5-syzkaller #0 [ 83.450906][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 83.460936][ C0] Call Trace: [ 83.464197][ C0] [ 83.467019][ C0] dump_stack+0x141/0x1d7 [ 83.471334][ C0] panic+0x306/0x73d [ 83.475208][ C0] ? __warn_printk+0xf3/0xf3 [ 83.479776][ C0] ? ath9k_hif_usb_rx_cb+0x3d3/0x1050 [ 83.485129][ C0] ? ath9k_hif_usb_rx_cb+0x3d3/0x1050 [ 83.490482][ C0] end_report.cold+0x5a/0x5a [ 83.495057][ C0] kasan_report.cold+0x6a/0xd8 [ 83.499801][ C0] ? rwlock_bug.part.0+0x80/0x90 [ 83.504732][ C0] ? ath9k_hif_usb_rx_cb+0x3d3/0x1050 [ 83.510088][ C0] kasan_check_range+0x13d/0x180 [ 83.515007][ C0] memcpy+0x20/0x60 [ 83.518793][ C0] ath9k_hif_usb_rx_cb+0x3d3/0x1050 [ 83.523971][ C0] ? hif_usb_start+0xa0/0xa0 [ 83.528542][ C0] ? __usb_hcd_giveback_urb+0x413/0x5c0 [ 83.534071][ C0] ? lock_downgrade+0x6e0/0x6e0 [ 83.538914][ C0] __usb_hcd_giveback_urb+0x2b0/0x5c0 [ 83.544269][ C0] usb_hcd_giveback_urb+0x367/0x410 [ 83.549448][ C0] dummy_timer+0x11f4/0x32a0 [ 83.554043][ C0] ? dummy_dequeue+0x500/0x500 [ 83.558785][ C0] ? dummy_dequeue+0x500/0x500 [ 83.563524][ C0] call_timer_fn+0x1a5/0x6b0 [ 83.568106][ C0] ? add_timer_on+0x4a0/0x4a0 [ 83.572760][ C0] ? lock_downgrade+0x6e0/0x6e0 [ 83.577592][ C0] ? _raw_spin_unlock_irq+0x1f/0x40 [ 83.582789][ C0] ? dummy_dequeue+0x500/0x500 [ 83.587529][ C0] __run_timers.part.0+0x67c/0xa50 [ 83.592630][ C0] ? call_timer_fn+0x6b0/0x6b0 [ 83.597369][ C0] ? lapic_next_event+0x4d/0x80 [ 83.602201][ C0] ? kvm_sched_clock_read+0x14/0x40 [ 83.607376][ C0] ? sched_clock+0x2a/0x40 [ 83.611769][ C0] ? sched_clock_cpu+0x18/0x1f0 [ 83.616613][ C0] run_timer_softirq+0xb3/0x1d0 [ 83.621440][ C0] __do_softirq+0x29b/0x9f6 [ 83.625926][ C0] irq_exit_rcu+0x134/0x200 [ 83.630420][ C0] sysvec_apic_timer_interrupt+0x93/0xc0 [ 83.636050][ C0] [ 83.638974][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 83.644935][ C0] RIP: 0010:acpi_idle_do_entry+0x1c9/0x250 [ 83.650737][ C0] Code: fd 06 6e f8 84 db 75 ac e8 e4 fe 6d f8 e8 bf ee 73 f8 e9 0c 00 00 00 e8 d5 fe 6d f8 0f 00 2d 8e 8a c7 00 e8 c9 fe 6d f8 fb f4 <9c> 5b 81 e3 00 02 00 00 fa 31 ff 48 89 de e8 74 05 6e f8 48 85 db [ 83.670348][ C0] RSP: 0018:ffffffff8bc07d60 EFLAGS: 00000293 [ 83.676392][ C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 83.684350][ C0] RDX: ffffffff8bcbc400 RSI: ffffffff89052737 RDI: 0000000000000000 [ 83.692300][ C0] RBP: ffff888141526864 R08: 0000000000000001 R09: 0000000000000001 [ 83.700246][ C0] R10: ffffffff81791618 R11: 0000000000000000 R12: 0000000000000001 [ 83.708192][ C0] R13: ffff888141526800 R14: ffff888141526864 R15: ffff888018c15004 [ 83.716151][ C0] ? trace_hardirqs_on+0x38/0x1c0 [ 83.721170][ C0] ? acpi_idle_do_entry+0x1c7/0x250 [ 83.726357][ C0] acpi_idle_enter+0x361/0x500 [ 83.731111][ C0] cpuidle_enter_state+0x1b1/0xc80 [ 83.736215][ C0] cpuidle_enter+0x4a/0xa0 [ 83.740617][ C0] do_idle+0x3e1/0x590 [ 83.744677][ C0] ? arch_cpu_idle_exit+0x30/0x30 [ 83.749682][ C0] ? trace_init_perf_perm_irq_work_exit+0xe/0xe [ 83.755907][ C0] cpu_startup_entry+0x14/0x20 [ 83.760660][ C0] start_kernel+0x475/0x496 [ 83.765156][ C0] secondary_startup_64_no_verify+0xb0/0xbb [ 83.771690][ C0] Kernel Offset: disabled [ 83.776048][ C0] Rebooting in 86400 seconds..