Warning: Permanently added '10.128.0.81' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 35.695798][ T83] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 36.215706][ T83] usb 1-1: New USB device found, idVendor=0cf3, idProduct=9271, bcdDevice= 1.08 [ 36.225019][ T83] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 36.233323][ T83] usb 1-1: Product: syz [ 36.237719][ T83] usb 1-1: Manufacturer: syz [ 36.242308][ T83] usb 1-1: SerialNumber: syz [ 36.286750][ T83] usb 1-1: ath9k_htc: Firmware ath9k_htc/htc_9271-1.4.0.fw requested [ 36.865556][ T83] usb 1-1: ath9k_htc: Transferred FW: ath9k_htc/htc_9271-1.4.0.fw, size: 51008 [ 37.925121][ T83] ath9k_htc 1-1:1.0: ath9k_htc: Target is unresponsive [ 37.932343][ T83] ath9k_htc: Failed to initialize the device executing program [ 38.106985][ T12] usb 1-1: USB disconnect, device number 2 [ 38.126698][ T12] usb 1-1: ath9k_htc: USB layer deinitialized [ 38.494964][ T12] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 39.014958][ T12] usb 1-1: New USB device found, idVendor=0cf3, idProduct=9271, bcdDevice= 1.08 [ 39.024023][ T12] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 39.032065][ T12] usb 1-1: Product: syz [ 39.036309][ T12] usb 1-1: Manufacturer: syz [ 39.041258][ T12] usb 1-1: SerialNumber: syz [ 39.086369][ T12] usb 1-1: ath9k_htc: Firmware ath9k_htc/htc_9271-1.4.0.fw requested [ 39.664759][ T12] usb 1-1: ath9k_htc: Transferred FW: ath9k_htc/htc_9271-1.4.0.fw, size: 51008 [ 40.724463][ T12] ath9k_htc 1-1:1.0: ath9k_htc: Target is unresponsive [ 40.731800][ T12] ath9k_htc: Failed to initialize the device executing program [ 40.905778][ T83] usb 1-1: USB disconnect, device number 3 [ 40.935791][ T83] usb 1-1: ath9k_htc: USB layer deinitialized [ 41.294215][ T83] usb 1-1: new high-speed USB device number 4 using dummy_hcd [ 41.814229][ T83] usb 1-1: New USB device found, idVendor=0cf3, idProduct=9271, bcdDevice= 1.08 [ 41.823297][ T83] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 41.831338][ T83] usb 1-1: Product: syz [ 41.835616][ T83] usb 1-1: Manufacturer: syz [ 41.840225][ T83] usb 1-1: SerialNumber: syz [ 41.885155][ T83] usb 1-1: ath9k_htc: Firmware ath9k_htc/htc_9271-1.4.0.fw requested [ 42.454086][ T83] usb 1-1: ath9k_htc: Transferred FW: ath9k_htc/htc_9271-1.4.0.fw, size: 51008 [ 43.523846][ T83] ath9k_htc 1-1:1.0: ath9k_htc: Target is unresponsive [ 43.530942][ T83] ath9k_htc: Failed to initialize the device executing program [ 43.688322][ T17] usb 1-1: USB disconnect, device number 4 [ 43.706634][ T17] usb 1-1: ath9k_htc: USB layer deinitialized [ 44.063691][ T17] usb 1-1: new high-speed USB device number 5 using dummy_hcd [ 44.583697][ T17] usb 1-1: New USB device found, idVendor=0cf3, idProduct=9271, bcdDevice= 1.08 [ 44.596947][ T17] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 44.604997][ T17] usb 1-1: Product: syz [ 44.609155][ T17] usb 1-1: Manufacturer: syz [ 44.613817][ T17] usb 1-1: SerialNumber: syz [ 44.654210][ T17] usb 1-1: ath9k_htc: Firmware ath9k_htc/htc_9271-1.4.0.fw requested [ 45.223540][ T17] usb 1-1: ath9k_htc: Transferred FW: ath9k_htc/htc_9271-1.4.0.fw, size: 51008 [ 46.243386][ T17] ath9k_htc 1-1:1.0: ath9k_htc: Target is unresponsive [ 46.252025][ T17] ath9k_htc: Failed to initialize the device [ 46.263427][ C1] ================================================================== [ 46.271614][ C1] BUG: KASAN: use-after-free in ath9k_hif_usb_rx_cb+0xad3/0xf90 [ 46.279323][ C1] Read of size 4 at addr ffff8881cc78c0dc by task swapper/1/0 [ 46.287628][ C1] [ 46.290087][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.7.0-rc5-syzkaller #0 [ 46.298582][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.308640][ C1] Call Trace: [ 46.311959][ C1] [ 46.314812][ C1] dump_stack+0xef/0x16e [ 46.319064][ C1] print_address_description.constprop.0.cold+0xd3/0x314 [ 46.326071][ C1] ? ath9k_hif_usb_rx_cb+0xad3/0xf90 [ 46.331429][ C1] __kasan_report.cold+0x37/0x92 [ 46.336375][ C1] ? ath9k_hif_usb_rx_cb+0xad3/0xf90 [ 46.341651][ C1] ? ath9k_hif_usb_rx_cb+0xad3/0xf90 [ 46.346934][ C1] kasan_report+0x33/0x50 [ 46.351260][ C1] ath9k_hif_usb_rx_cb+0xad3/0xf90 [ 46.356696][ C1] ? find_held_lock+0x2d/0x110 [ 46.361469][ C1] ? hif_usb_mgmt_cb+0x310/0x310 [ 46.367574][ C1] ? usb_hcd_unmap_urb_setup_for_dma+0x8a/0x470 [ 46.373825][ C1] ? do_raw_read_unlock+0x3b/0x70 [ 46.378843][ C1] ? _raw_read_unlock+0x1a/0x30 [ 46.383847][ C1] __usb_hcd_giveback_urb+0x1f2/0x470 [ 46.390030][ C1] usb_hcd_giveback_urb+0x368/0x420 [ 46.395256][ C1] dummy_timer+0x125e/0x32b4 [ 46.399927][ C1] ? dummy_udc_probe+0x980/0x980 [ 46.404875][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 46.410767][ C1] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 46.416178][ C1] call_timer_fn+0x1ac/0x700 [ 46.420758][ C1] ? dummy_udc_probe+0x980/0x980 [ 46.425678][ C1] ? timer_fixup_init+0x60/0x60 [ 46.430526][ C1] ? lock_downgrade+0x720/0x720 [ 46.435484][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 46.441379][ C1] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 46.446827][ C1] ? _raw_spin_unlock_irq+0x1f/0x30 [ 46.452022][ C1] ? dummy_udc_probe+0x980/0x980 [ 46.456950][ C1] run_timer_softirq+0x5f9/0x1500 [ 46.461960][ C1] ? add_timer+0x7a0/0x7a0 [ 46.466374][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 46.472568][ C1] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 46.478090][ C1] __do_softirq+0x21e/0x9aa [ 46.482601][ C1] irq_exit+0x178/0x1a0 [ 46.486743][ C1] smp_apic_timer_interrupt+0x141/0x540 [ 46.492414][ C1] apic_timer_interrupt+0xf/0x20 [ 46.497343][ C1] [ 46.500276][ C1] RIP: 0010:default_idle+0x28/0x300 [ 46.505575][ C1] Code: cc cc 41 56 41 55 65 44 8b 2d 24 83 6b 7a 41 54 55 53 0f 1f 44 00 00 e8 06 69 af fb e9 07 00 00 00 0f 00 2d 0a 25 4c 00 fb f4 <65> 44 8b 2d 00 83 6b 7a 0f 1f 44 00 00 5b 5d 41 5c 41 5d 41 5e c3 [ 46.525362][ C1] RSP: 0018:ffff8881da227da8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 46.533782][ C1] RAX: 0000000000000007 RBX: ffff8881da20b180 RCX: 0000000000000000 [ 46.541739][ C1] RDX: 0000000000000000 RSI: 0000000000000006 RDI: ffff8881da20b9fc [ 46.549699][ C1] RBP: ffffed103b441630 R08: ffff8881da20b180 R09: 0000000000000000 [ 46.557682][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 46.565638][ C1] R13: 0000000000000001 R14: ffffffff87e88e80 R15: 0000000000000000 [ 46.573603][ C1] ? default_idle+0x1a/0x300 [ 46.578315][ C1] do_idle+0x3e0/0x500 [ 46.582394][ C1] ? arch_cpu_idle_exit+0x40/0x40 [ 46.587414][ C1] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 46.593709][ C1] ? lockdep_hardirqs_on+0x3c7/0x5d0 [ 46.598983][ C1] cpu_startup_entry+0x14/0x20 [ 46.603731][ C1] start_secondary+0x2ae/0x390 [ 46.608513][ C1] ? set_cpu_sibling_map+0x1e90/0x1e90 [ 46.614004][ C1] secondary_startup_64+0xb6/0xc0 [ 46.619021][ C1] [ 46.621328][ C1] Allocated by task 136: [ 46.625574][ C1] save_stack+0x1b/0x40 [ 46.629710][ C1] __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 46.635336][ C1] kmem_cache_alloc+0xd8/0x300 [ 46.640390][ C1] getname_flags+0xd2/0x5b0 [ 46.644886][ C1] user_path_at_empty+0x2a/0x50 [ 46.649722][ C1] vfs_statx+0x119/0x1e0 [ 46.654308][ C1] __do_sys_newlstat+0x96/0x120 [ 46.659176][ C1] do_syscall_64+0xb6/0x5a0 [ 46.663733][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 46.669601][ C1] [ 46.671908][ C1] Freed by task 136: [ 46.675788][ C1] save_stack+0x1b/0x40 [ 46.679924][ C1] __kasan_slab_free+0x117/0x160 [ 46.684840][ C1] kmem_cache_free+0x9b/0x360 [ 46.689505][ C1] putname+0xe1/0x120 [ 46.693472][ C1] filename_lookup+0x282/0x3e0 [ 46.698229][ C1] vfs_statx+0x119/0x1e0 [ 46.702471][ C1] __do_sys_newlstat+0x96/0x120 [ 46.707313][ C1] do_syscall_64+0xb6/0x5a0 [ 46.711821][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 46.717776][ C1] [ 46.720095][ C1] The buggy address belongs to the object at ffff8881cc78b300 [ 46.720095][ C1] which belongs to the cache names_cache of size 4096 [ 46.734338][ C1] The buggy address is located 3548 bytes inside of [ 46.734338][ C1] 4096-byte region [ffff8881cc78b300, ffff8881cc78c300) [ 46.747806][ C1] The buggy address belongs to the page: [ 46.753454][ C1] page:ffffea000731e200 refcount:1 mapcount:0 mapping:00000000d890f54e index:0x0 head:ffffea000731e200 order:3 compound_mapcount:0 compound_pincount:0 [ 46.768900][ C1] flags: 0x200000000010200(slab|head) [ 46.775558][ C1] raw: 0200000000010200 dead000000000100 dead000000000122 ffff8881da11e000 [ 46.784135][ C1] raw: 0000000000000000 0000000000070007 00000001ffffffff 0000000000000000 [ 46.792789][ C1] page dumped because: kasan: bad access detected [ 46.799219][ C1] [ 46.801529][ C1] Memory state around the buggy address: [ 46.807175][ C1] ffff8881cc78bf80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 46.815221][ C1] ffff8881cc78c000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 46.824419][ C1] >ffff8881cc78c080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 46.832474][ C1] ^ [ 46.839402][ C1] ffff8881cc78c100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 46.847469][ C1] ffff8881cc78c180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 46.855662][ C1] ================================================================== [ 46.863898][ C1] Disabling lock debugging due to kernel taint [ 46.870154][ C1] Kernel panic - not syncing: panic_on_warn set ... [ 46.876740][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G B 5.7.0-rc5-syzkaller #0 [ 46.887379][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.897536][ C1] Call Trace: [ 46.900817][ C1] [ 46.903659][ C1] dump_stack+0xef/0x16e [ 46.907897][ C1] panic+0x2aa/0x6e1 [ 46.911767][ C1] ? add_taint.cold+0x16/0x16 [ 46.916880][ C1] ? print_shadow_for_address+0xb8/0x114 [ 46.922734][ C1] ? trace_hardirqs_off+0x50/0x200 [ 46.927957][ C1] ? ath9k_hif_usb_rx_cb+0xad3/0xf90 [ 46.934212][ C1] end_report+0x4d/0x53 [ 46.938363][ C1] __kasan_report.cold+0x72/0x92 [ 46.943311][ C1] ? ath9k_hif_usb_rx_cb+0xad3/0xf90 [ 46.948594][ C1] ? ath9k_hif_usb_rx_cb+0xad3/0xf90 [ 46.953876][ C1] kasan_report+0x33/0x50 [ 46.958186][ C1] ath9k_hif_usb_rx_cb+0xad3/0xf90 [ 46.963291][ C1] ? find_held_lock+0x2d/0x110 [ 46.968053][ C1] ? hif_usb_mgmt_cb+0x310/0x310 [ 46.973192][ C1] ? usb_hcd_unmap_urb_setup_for_dma+0x8a/0x470 [ 46.979535][ C1] ? do_raw_read_unlock+0x3b/0x70 [ 46.984569][ C1] ? _raw_read_unlock+0x1a/0x30 [ 46.989412][ C1] __usb_hcd_giveback_urb+0x1f2/0x470 [ 46.995123][ C1] usb_hcd_giveback_urb+0x368/0x420 [ 47.000390][ C1] dummy_timer+0x125e/0x32b4 [ 47.004974][ C1] ? dummy_udc_probe+0x980/0x980 [ 47.009909][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 47.015452][ C1] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 47.020782][ C1] call_timer_fn+0x1ac/0x700 [ 47.025490][ C1] ? dummy_udc_probe+0x980/0x980 [ 47.030417][ C1] ? timer_fixup_init+0x60/0x60 [ 47.035273][ C1] ? lock_downgrade+0x720/0x720 [ 47.040127][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 47.045652][ C1] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 47.050914][ C1] ? _raw_spin_unlock_irq+0x1f/0x30 [ 47.056090][ C1] ? dummy_udc_probe+0x980/0x980 [ 47.061141][ C1] run_timer_softirq+0x5f9/0x1500 [ 47.066167][ C1] ? add_timer+0x7a0/0x7a0 [ 47.070864][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 47.076604][ C1] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 47.082097][ C1] __do_softirq+0x21e/0x9aa [ 47.087558][ C1] irq_exit+0x178/0x1a0 [ 47.091702][ C1] smp_apic_timer_interrupt+0x141/0x540 [ 47.097223][ C1] apic_timer_interrupt+0xf/0x20 [ 47.102130][ C1] [ 47.105059][ C1] RIP: 0010:default_idle+0x28/0x300 [ 47.110248][ C1] Code: cc cc 41 56 41 55 65 44 8b 2d 24 83 6b 7a 41 54 55 53 0f 1f 44 00 00 e8 06 69 af fb e9 07 00 00 00 0f 00 2d 0a 25 4c 00 fb f4 <65> 44 8b 2d 00 83 6b 7a 0f 1f 44 00 00 5b 5d 41 5c 41 5d 41 5e c3 [ 47.131080][ C1] RSP: 0018:ffff8881da227da8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 47.143083][ C1] RAX: 0000000000000007 RBX: ffff8881da20b180 RCX: 0000000000000000 [ 47.151045][ C1] RDX: 0000000000000000 RSI: 0000000000000006 RDI: ffff8881da20b9fc [ 47.159787][ C1] RBP: ffffed103b441630 R08: ffff8881da20b180 R09: 0000000000000000 [ 47.167763][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 47.175962][ C1] R13: 0000000000000001 R14: ffffffff87e88e80 R15: 0000000000000000 [ 47.184040][ C1] ? default_idle+0x1a/0x300 [ 47.188620][ C1] do_idle+0x3e0/0x500 [ 47.193649][ C1] ? arch_cpu_idle_exit+0x40/0x40 [ 47.198654][ C1] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 47.204473][ C1] ? lockdep_hardirqs_on+0x3c7/0x5d0 [ 47.209739][ C1] cpu_startup_entry+0x14/0x20 [ 47.214643][ C1] start_secondary+0x2ae/0x390 [ 47.219392][ C1] ? set_cpu_sibling_map+0x1e90/0x1e90 [ 47.224830][ C1] secondary_startup_64+0xb6/0xc0 [ 47.230541][ C1] Kernel Offset: disabled [ 47.235996][ C1] Rebooting in 86400 seconds..