[[0;32m OK [0m] Reached target Multi-User System.
[[0;32m OK [0m] Reached target Graphical Interface.
Starting Update UTMP about System Runlevel Changes...
[[0;32m OK [0m] Started Load/Save RF Kill Switch Status.
[[0;32m OK [0m] Started Update UTMP about System Runlevel Changes.
Debian GNU/Linux 9 syzkaller ttyS0
Warning: Permanently added '10.128.0.5' (ECDSA) to the list of known hosts.
executing program
executing program
executing program
executing program
executing program
executing program
syzkaller login: [ 51.400252][ T95] usb 1-1: new high-speed USB device number 2 using dummy_hcd
[ 51.407947][ T12] usb 6-1: new high-speed USB device number 2 using dummy_hcd
[ 51.415651][ T5] usb 5-1: new high-speed USB device number 2 using dummy_hcd
[ 51.420209][ T17] usb 2-1: new high-speed USB device number 2 using dummy_hcd
[ 51.423226][ T148] usb 3-1: new high-speed USB device number 2 using dummy_hcd
[ 51.438259][ T385] usb 4-1: new high-speed USB device number 2 using dummy_hcd
[ 51.950304][ T17] usb 2-1: New USB device found, idVendor=0cf3, idProduct=9271, bcdDevice= 1.08
[ 51.959824][ T17] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 51.968215][ T17] usb 2-1: Product: syz
[ 51.970447][ T95] usb 1-1: New USB device found, idVendor=0cf3, idProduct=9271, bcdDevice= 1.08
[ 51.972459][ T17] usb 2-1: Manufacturer: syz
[ 51.981516][ T95] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 51.986179][ T17] usb 2-1: SerialNumber: syz
[ 51.994177][ T95] usb 1-1: Product: syz
[ 52.003072][ T95] usb 1-1: Manufacturer: syz
[ 52.007981][ T95] usb 1-1: SerialNumber: syz
[ 52.012773][ T385] usb 4-1: New USB device found, idVendor=0cf3, idProduct=9271, bcdDevice= 1.08
[ 52.022744][ T385] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 52.031350][ T385] usb 4-1: Product: syz
[ 52.035748][ T385] usb 4-1: Manufacturer: syz
[ 52.040858][ T385] usb 4-1: SerialNumber: syz
[ 52.041873][ T17] usb 2-1: ath9k_htc: Firmware ath9k_htc/htc_9271-1.4.0.fw requested
[ 52.045707][ T5] usb 5-1: New USB device found, idVendor=0cf3, idProduct=9271, bcdDevice= 1.08
[ 52.063064][ T5] usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 52.071466][ T5] usb 5-1: Product: syz
[ 52.076237][ T5] usb 5-1: Manufacturer: syz
[ 52.081020][ T5] usb 5-1: SerialNumber: syz
[ 52.085862][ T12] usb 6-1: New USB device found, idVendor=0cf3, idProduct=9271, bcdDevice= 1.08
[ 52.095237][ T12] usb 6-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 52.103476][ T12] usb 6-1: Product: syz
[ 52.107652][ T12] usb 6-1: Manufacturer: syz
[ 52.112544][ T12] usb 6-1: SerialNumber: syz
[ 52.117240][ T148] usb 3-1: New USB device found, idVendor=0cf3, idProduct=9271, bcdDevice= 1.08
[ 52.127975][ T148] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 52.136130][ T148] usb 3-1: Product: syz
[ 52.140740][ T148] usb 3-1: Manufacturer: syz
[ 52.145919][ T148] usb 3-1: SerialNumber: syz
[ 52.190999][ T385] usb 4-1: ath9k_htc: Firmware ath9k_htc/htc_9271-1.4.0.fw requested
[ 52.200725][ T148] usb 3-1: ath9k_htc: Firmware ath9k_htc/htc_9271-1.4.0.fw requested
[ 52.210847][ T12] usb 6-1: ath9k_htc: Firmware ath9k_htc/htc_9271-1.4.0.fw requested
[ 52.220757][ T95] usb 1-1: ath9k_htc: Firmware ath9k_htc/htc_9271-1.4.0.fw requested
[ 52.230711][ T5] usb 5-1: ath9k_htc: Firmware ath9k_htc/htc_9271-1.4.0.fw requested
[ 52.660266][ T17] usb 2-1: ath9k_htc: Transferred FW: ath9k_htc/htc_9271-1.4.0.fw, size: 51008
[ 52.850272][ T5] usb 1-1: ath9k_htc: Transferred FW: ath9k_htc/htc_9271-1.4.0.fw, size: 51008
[ 52.860075][ T95] usb 5-1: ath9k_htc: Transferred FW: ath9k_htc/htc_9271-1.4.0.fw, size: 51008
[ 52.869518][ T12] usb 6-1: ath9k_htc: Transferred FW: ath9k_htc/htc_9271-1.4.0.fw, size: 51008
[ 52.878615][ T148] usb 3-1: ath9k_htc: Transferred FW: ath9k_htc/htc_9271-1.4.0.fw, size: 51008
[ 52.888292][ T385] usb 4-1: ath9k_htc: Transferred FW: ath9k_htc/htc_9271-1.4.0.fw, size: 51008
[ 53.510738][ T383] udc-core: couldn't find an available UDC or it's busy
[ 53.518832][ T383] misc raw-gadget: fail, usb_gadget_probe_driver returned -16
[ 53.681069][ T378] udc-core: couldn't find an available UDC or it's busy
[ 53.681309][ T381] udc-core: couldn't find an available UDC or it's busy
[ 53.688217][ T378] misc raw-gadget: fail, usb_gadget_probe_driver returned -16
[ 53.695638][ T381] misc raw-gadget: fail, usb_gadget_probe_driver returned -16
[ 53.704215][ T379] udc-core: couldn't find an available UDC or it's busy
[ 53.711387][ T372] udc-core: couldn't find an available UDC or it's busy
[ 53.717918][ T379] misc raw-gadget: fail, usb_gadget_probe_driver returned -16
[ 53.717952][ T17] ath9k_htc 2-1:1.0: ath9k_htc: Target is unresponsive
[ 53.724926][ T372] misc raw-gadget: fail, usb_gadget_probe_driver returned -16
[ 53.732844][ T382] udc-core: couldn't find an available UDC or it's busy
[ 53.754777][ T382] misc raw-gadget: fail, usb_gadget_probe_driver returned -16
[ 53.764627][ T17] ath9k_htc: Failed to initialize the device
[ 53.780196][ C1] ==================================================================
[ 53.788693][ C1] BUG: KASAN: use-after-free in ath9k_hif_usb_rx_cb+0xe64/0xf90
[ 53.796321][ C1] Read of size 4 at addr ffff8881cc4a40d0 by task swapper/1/0
[ 53.803776][ C1]
[ 53.806111][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.7.0-rc6-syzkaller #0
[ 53.814213][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 53.824600][ C1] Call Trace:
[ 53.827969][ C1]
[ 53.830820][ C1] dump_stack+0xef/0x16e
[ 53.835219][ C1] print_address_description.constprop.0.cold+0xd3/0x415
[ 53.842377][ C1] ? __build_skb+0x21/0x60
[ 53.847206][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0
[ 53.852840][ C1] ? vprintk_func+0x7d/0x113
[ 53.857441][ C1] ? ath9k_hif_usb_rx_cb+0xe64/0xf90
[ 53.862730][ C1] __kasan_report.cold+0x37/0x7d
[ 53.867676][ C1] ? ath9k_hif_usb_rx_cb+0xe64/0xf90
[ 53.872961][ C1] ? ath9k_hif_usb_rx_cb+0xe64/0xf90
[ 53.878238][ C1] kasan_report+0x33/0x50
[ 53.882561][ C1] ath9k_hif_usb_rx_cb+0xe64/0xf90
[ 53.887667][ C1] ? hif_usb_mgmt_cb+0x310/0x310
[ 53.892596][ C1] ? do_raw_spin_lock+0x129/0x290
[ 53.897707][ C1] ? lock_downgrade+0x720/0x720
[ 53.902552][ C1] ? trace_hardirqs_off+0x50/0x200
[ 53.907750][ C1] __usb_hcd_giveback_urb+0x29a/0x550
[ 53.913887][ C1] usb_hcd_giveback_urb+0x368/0x420
[ 53.919489][ C1] dummy_timer+0x125e/0x32b4
[ 53.924086][ C1] ? dummy_udc_probe+0x980/0x980
[ 53.929165][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0
[ 53.934971][ C1] ? rcu_read_lock_bh_held+0xb0/0xb0
[ 53.940603][ C1] call_timer_fn+0x1ac/0x700
[ 53.945209][ C1] ? dummy_udc_probe+0x980/0x980
[ 53.950468][ C1] ? timer_fixup_init+0x60/0x60
[ 53.955628][ C1] ? lock_downgrade+0x720/0x720
[ 53.961644][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0
[ 53.967329][ C1] ? rcu_read_lock_bh_held+0xb0/0xb0
[ 53.972774][ C1] ? _raw_spin_unlock_irq+0x1f/0x30
[ 53.978089][ C1] ? dummy_udc_probe+0x980/0x980
[ 53.983171][ C1] run_timer_softirq+0x5f9/0x1500
[ 53.988203][ C1] ? add_timer+0x7a0/0x7a0
[ 53.992673][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0
[ 53.998340][ C1] ? rcu_read_lock_bh_held+0xb0/0xb0
[ 54.003746][ C1] __do_softirq+0x21e/0x9aa
[ 54.008250][ C1] irq_exit+0x178/0x1a0
[ 54.012526][ C1] smp_apic_timer_interrupt+0x141/0x540
[ 54.018560][ C1] apic_timer_interrupt+0xf/0x20
[ 54.023662][ C1]
[ 54.026598][ C1] RIP: 0010:default_idle+0x28/0x300
[ 54.032092][ C1] 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 16 28 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
[ 54.052126][ C1] RSP: 0018:ffff8881da227da8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[ 54.058961][ T389] usb 3-1: USB disconnect, device number 2
[ 54.060542][ C1] RAX: 0000000000000007 RBX: ffff8881da20b180 RCX: 0000000000000000
[ 54.060555][ C1] RDX: 0000000000000000 RSI: 0000000000000006 RDI: ffff8881da20b9fc
[ 54.060563][ C1] RBP: ffffed103b441630 R08: ffff8881da20b180 R09: 0000000000000000
[ 54.060570][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
[ 54.060583][ C1] R13: 0000000000000001 R14: ffffffff87e88c40 R15: 0000000000000000
[ 54.085506][ T411] usb 5-1: USB disconnect, device number 2
[ 54.090495][ C1] ? default_idle+0x1a/0x300
[ 54.090511][ C1] do_idle+0x3e0/0x500
[ 54.090524][ C1] ? arch_cpu_idle_exit+0x40/0x40
[ 54.090544][ C1] ? _raw_spin_unlock_irqrestore+0x39/0x40
[ 54.104017][ T414] usb 1-1: USB disconnect, device number 2
[ 54.106884][ C1] ? lockdep_hardirqs_on+0x3c7/0x5d0
[ 54.106901][ C1] cpu_startup_entry+0x14/0x20
[ 54.106919][ C1] start_secondary+0x2ae/0x390
[ 54.106937][ C1] ? set_cpu_sibling_map+0x1e90/0x1e90
[ 54.130165][ T387] usb 4-1: USB disconnect, device number 2
[ 54.133157][ C1] secondary_startup_64+0xb6/0xc0
[ 54.133165][ C1]
[ 54.133173][ C1] Allocated by task 131:
[ 54.133187][ C1] save_stack+0x1b/0x40
[ 54.133204][ C1] __kasan_kmalloc.constprop.0+0xbf/0xd0
[ 54.188264][ C1] kmem_cache_alloc+0xd8/0x300
[ 54.193392][ C1] getname_flags+0xd2/0x5b0
[ 54.198222][ C1] do_sys_openat2+0x3fc/0x7d0
[ 54.203007][ C1] do_sys_open+0xc3/0x140
[ 54.203158][ T416] usb 2-1: USB disconnect, device number 2
[ 54.207478][ C1] do_syscall_64+0xb6/0x5a0
[ 54.207493][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xb3
[ 54.207498][ C1]
[ 54.207505][ C1] Freed by task 131:
executing program
executing program
executing program
[ 54.207519][ C1] save_stack+0x1b/0x40
[ 54.207529][ C1] __kasan_slab_free+0x117/0x160
[ 54.207546][ C1] kmem_cache_free+0x9b/0x360
[ 54.244845][ C1] putname+0xe1/0x120
[ 54.249384][ C1] do_sys_openat2+0x467/0x7d0
[ 54.254063][ C1] do_sys_open+0xc3/0x140
[ 54.258669][ C1] do_syscall_64+0xb6/0x5a0
[ 54.263200][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xb3
[ 54.269105][ C1]
[ 54.271455][ C1] The buggy address belongs to the object at ffff8881cc4a3300
[ 54.271455][ C1] which belongs to the cache names_cache of size 4096
[ 54.285807][ C1] The buggy address is located 3536 bytes inside of
[ 54.285807][ C1] 4096-byte region [ffff8881cc4a3300, ffff8881cc4a4300)
[ 54.299790][ C1] The buggy address belongs to the page:
[ 54.305854][ C1] page:ffffea0007312800 refcount:1 mapcount:0 mapping:0000000008ddbc5f index:0x0 head:ffffea0007312800 order:3 compound_mapcount:0 compound_pincount:0
[ 54.321252][ C1] flags: 0x200000000010200(slab|head)
[ 54.326759][ C1] raw: 0200000000010200 dead000000000100 dead000000000122 ffff8881da11e000
[ 54.335453][ C1] raw: 0000000000000000 0000000000070007 00000001ffffffff 0000000000000000
[ 54.344851][ C1] page dumped because: kasan: bad access detected
[ 54.351408][ C1]
[ 54.353942][ C1] Memory state around the buggy address:
[ 54.359724][ C1] ffff8881cc4a3f80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 54.368065][ C1] ffff8881cc4a4000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 54.376895][ C1] >ffff8881cc4a4080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 54.385489][ C1] ^
[ 54.392166][ C1] ffff8881cc4a4100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 54.400228][ C1] ffff8881cc4a4180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 54.408365][ C1] ==================================================================
[ 54.417806][ C1] Disabling lock debugging due to kernel taint
[ 54.424009][ C1] Kernel panic - not syncing: panic_on_warn set ...
[ 54.430897][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G B 5.7.0-rc6-syzkaller #0
[ 54.440564][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 54.451004][ C1] Call Trace:
[ 54.454289][ C1]
[ 54.457259][ C1] dump_stack+0xef/0x16e
[ 54.461583][ C1] panic+0x2aa/0x6e1
[ 54.465938][ C1] ? add_taint.cold+0x16/0x16
[ 54.470840][ C1] ? trace_hardirqs_off+0x50/0x200
[ 54.476085][ C1] ? ath9k_hif_usb_rx_cb+0xe64/0xf90
[ 54.481360][ C1] end_report+0x4d/0x53
[ 54.485505][ C1] __kasan_report.cold+0x72/0x7d
[ 54.490658][ C1] ? ath9k_hif_usb_rx_cb+0xe64/0xf90
[ 54.496098][ C1] ? ath9k_hif_usb_rx_cb+0xe64/0xf90
[ 54.502148][ C1] kasan_report+0x33/0x50
[ 54.506620][ C1] ath9k_hif_usb_rx_cb+0xe64/0xf90
[ 54.511861][ C1] ? hif_usb_mgmt_cb+0x310/0x310
[ 54.516902][ C1] ? do_raw_spin_lock+0x129/0x290
[ 54.523061][ C1] ? lock_downgrade+0x720/0x720
[ 54.528012][ C1] ? trace_hardirqs_off+0x50/0x200
[ 54.533115][ C1] __usb_hcd_giveback_urb+0x29a/0x550
[ 54.538602][ C1] usb_hcd_giveback_urb+0x368/0x420
[ 54.544078][ C1] dummy_timer+0x125e/0x32b4
[ 54.548660][ C1] ? dummy_udc_probe+0x980/0x980
[ 54.553865][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0
[ 54.560226][ C1] ? rcu_read_lock_bh_held+0xb0/0xb0
[ 54.565885][ C1] call_timer_fn+0x1ac/0x700
[ 54.570684][ C1] ? dummy_udc_probe+0x980/0x980
[ 54.575912][ C1] ? timer_fixup_init+0x60/0x60
[ 54.580847][ C1] ? lock_downgrade+0x720/0x720
[ 54.585868][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0
[ 54.591651][ C1] ? rcu_read_lock_bh_held+0xb0/0xb0
[ 54.597025][ C1] ? _raw_spin_unlock_irq+0x1f/0x30
[ 54.602488][ C1] ? dummy_udc_probe+0x980/0x980
[ 54.607699][ C1] run_timer_softirq+0x5f9/0x1500
[ 54.613102][ C1] ? add_timer+0x7a0/0x7a0
[ 54.617818][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0
[ 54.623376][ C1] ? rcu_read_lock_bh_held+0xb0/0xb0
[ 54.628881][ C1] __do_softirq+0x21e/0x9aa
[ 54.633383][ C1] irq_exit+0x178/0x1a0
[ 54.637618][ C1] smp_apic_timer_interrupt+0x141/0x540
[ 54.643819][ C1] apic_timer_interrupt+0xf/0x20
[ 54.649506][ C1]
[ 54.652456][ C1] RIP: 0010:default_idle+0x28/0x300
[ 54.657995][ C1] 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 16 28 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
[ 54.678694][ C1] RSP: 0018:ffff8881da227da8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[ 54.687346][ C1] RAX: 0000000000000007 RBX: ffff8881da20b180 RCX: 0000000000000000
[ 54.695640][ C1] RDX: 0000000000000000 RSI: 0000000000000006 RDI: ffff8881da20b9fc
[ 54.703756][ C1] RBP: ffffed103b441630 R08: ffff8881da20b180 R09: 0000000000000000
[ 54.711810][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
[ 54.719864][ C1] R13: 0000000000000001 R14: ffffffff87e88c40 R15: 0000000000000000
[ 54.728129][ C1] ? default_idle+0x1a/0x300
[ 54.732857][ C1] do_idle+0x3e0/0x500
[ 54.737046][ C1] ? arch_cpu_idle_exit+0x40/0x40
[ 54.742274][ C1] ? _raw_spin_unlock_irqrestore+0x39/0x40
[ 54.748080][ C1] ? lockdep_hardirqs_on+0x3c7/0x5d0
[ 54.753363][ C1] cpu_startup_entry+0x14/0x20
[ 54.758116][ C1] start_secondary+0x2ae/0x390
[ 54.762936][ C1] ? set_cpu_sibling_map+0x1e90/0x1e90
[ 54.768382][ C1] secondary_startup_64+0xb6/0xc0
[ 54.774385][ C1] Kernel Offset: disabled
[ 54.778711][ C1] Rebooting in 86400 seconds..