DUID 00:04:11:31:ea:d8:bb:db:47:a8:80:cb:7d:0b:3c:d8:ea:74 forked to background, child pid 3174 [ 29.256158][ T3175] 8021q: adding VLAN 0 to HW filter on device bond0 [ 29.268743][ T3175] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.80' (ECDSA) to the list of known hosts. syzkaller login: [ 49.599783][ T3589] cgroup: Unknown subsys name 'net' [ 49.733135][ T3589] cgroup: Unknown subsys name 'rlimit' [ 49.901784][ T8] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 49.910085][ T8] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 49.920993][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 49.938928][ T55] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 executing program [ 49.947624][ T55] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 49.956086][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 50.266723][ T20] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 50.796806][ T20] usb 1-1: New USB device found, idVendor=0cf3, idProduct=9271, bcdDevice= 1.08 [ 50.806061][ T20] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 50.814165][ T20] usb 1-1: Product: syz [ 50.818440][ T20] usb 1-1: Manufacturer: syz [ 50.823079][ T20] usb 1-1: SerialNumber: syz [ 50.879129][ T20] usb 1-1: ath9k_htc: Firmware ath9k_htc/htc_9271-1.4.0.fw requested [ 51.486823][ T2979] usb 1-1: ath9k_htc: Transferred FW: ath9k_htc/htc_9271-1.4.0.fw, size: 51008 [ 51.707355][ C1] usb 1-1: ath: unknown panic pattern! [ 51.716091][ T20] usb 1-1: USB disconnect, device number 2 executing program [ 52.516653][ T2979] ath9k_htc 1-1:1.0: ath9k_htc: Target is unresponsive [ 52.523943][ T2979] ath9k_htc: Failed to initialize the device [ 52.531423][ T20] usb 1-1: ath9k_htc: USB layer deinitialized [ 52.886677][ T20] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 53.406718][ T20] usb 1-1: New USB device found, idVendor=0cf3, idProduct=9271, bcdDevice= 1.08 [ 53.415863][ T20] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 53.424014][ T20] usb 1-1: Product: syz [ 53.428336][ T20] usb 1-1: Manufacturer: syz [ 53.432991][ T20] usb 1-1: SerialNumber: syz [ 53.477493][ T20] usb 1-1: ath9k_htc: Firmware ath9k_htc/htc_9271-1.4.0.fw requested [ 54.046751][ T3595] usb 1-1: ath9k_htc: Transferred FW: ath9k_htc/htc_9271-1.4.0.fw, size: 51008 [ 54.266796][ C1] usb 1-1: ath: unknown panic pattern! [ 54.273683][ T20] usb 1-1: USB disconnect, device number 3 executing program [ 55.076699][ T3595] ath9k_htc 1-1:1.0: ath9k_htc: Target is unresponsive [ 55.083661][ T3595] ath9k_htc: Failed to initialize the device [ 55.090956][ T20] usb 1-1: ath9k_htc: USB layer deinitialized [ 55.466682][ T20] usb 1-1: new high-speed USB device number 4 using dummy_hcd [ 55.996795][ T20] usb 1-1: New USB device found, idVendor=0cf3, idProduct=9271, bcdDevice= 1.08 [ 56.005842][ T20] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 56.014646][ T20] usb 1-1: Product: syz [ 56.019102][ T20] usb 1-1: Manufacturer: syz [ 56.023686][ T20] usb 1-1: SerialNumber: syz [ 56.067289][ T20] usb 1-1: ath9k_htc: Firmware ath9k_htc/htc_9271-1.4.0.fw requested [ 56.656786][ T20] usb 1-1: ath9k_htc: Transferred FW: ath9k_htc/htc_9271-1.4.0.fw, size: 51008 [ 56.876821][ C1] usb 1-1: ath: unknown panic pattern! [ 56.880558][ T7] usb 1-1: USB disconnect, device number 4 [ 56.882541][ C1] ================================================================== [ 56.896293][ C1] BUG: KASAN: use-after-free in kfree_skb_reason+0x33/0x400 [ 56.903608][ C1] Read of size 4 at addr ffff888073d115dc by task swapper/1/0 [ 56.911052][ C1] [ 56.913366][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.17.0-rc4-syzkaller-00002-gd567f5db412e #0 [ 56.923069][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.933114][ C1] Call Trace: [ 56.936390][ C1] [ 56.939223][ C1] dump_stack_lvl+0xcd/0x134 [ 56.943806][ C1] print_address_description.constprop.0.cold+0x8d/0x336 [ 56.950823][ C1] ? kfree_skb_reason+0x33/0x400 [ 56.955766][ C1] ? kfree_skb_reason+0x33/0x400 [ 56.960694][ C1] kasan_report.cold+0x83/0xdf [ 56.965453][ C1] ? kfree_skb_reason+0x33/0x400 [ 56.970390][ C1] kasan_check_range+0x13d/0x180 [ 56.975324][ C1] kfree_skb_reason+0x33/0x400 [ 56.980090][ C1] ath9k_hif_usb_reg_in_cb+0x4c2/0x630 [ 56.985545][ C1] __usb_hcd_giveback_urb+0x2b0/0x5c0 [ 56.990915][ C1] usb_hcd_giveback_urb+0x367/0x410 [ 56.996110][ C1] dummy_timer+0x11f9/0x32b0 [ 57.000718][ C1] ? dummy_dequeue+0x500/0x500 [ 57.005480][ C1] ? dummy_dequeue+0x500/0x500 [ 57.010239][ C1] call_timer_fn+0x1a5/0x6b0 [ 57.014822][ C1] ? timer_fixup_activate+0x350/0x350 [ 57.020199][ C1] ? lock_downgrade+0x6e0/0x6e0 [ 57.025048][ C1] ? _raw_spin_unlock_irq+0x1f/0x40 [ 57.030246][ C1] ? dummy_dequeue+0x500/0x500 [ 57.035076][ C1] __run_timers.part.0+0x67c/0xa30 [ 57.040188][ C1] ? call_timer_fn+0x6b0/0x6b0 [ 57.044949][ C1] ? kvm_sched_clock_read+0x14/0x40 [ 57.050135][ C1] ? sched_clock_cpu+0x15/0x1f0 [ 57.054987][ C1] run_timer_softirq+0xb3/0x1d0 [ 57.059829][ C1] __do_softirq+0x29b/0x9c2 [ 57.064419][ C1] __irq_exit_rcu+0x123/0x180 [ 57.069092][ C1] irq_exit_rcu+0x5/0x20 [ 57.073331][ C1] sysvec_apic_timer_interrupt+0x93/0xc0 [ 57.078959][ C1] [ 57.081878][ C1] [ 57.084796][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 57.090768][ C1] RIP: 0010:acpi_idle_do_entry+0x1c6/0x250 [ 57.096572][ C1] Code: 89 de e8 8d 3b 28 f8 84 db 75 ac e8 04 39 28 f8 e8 af 78 2e f8 eb 0c e8 f8 38 28 f8 0f 00 2d b1 ef c0 00 e8 ec 38 28 f8 fb f4 <9c> 5b 81 e3 00 02 00 00 fa 31 ff 48 89 de e8 c7 3c 28 f8 48 85 db [ 57.116181][ C1] RSP: 0018:ffffc90000d57d18 EFLAGS: 00000293 [ 57.122235][ C1] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 57.130196][ C1] RDX: ffff88801192d700 RSI: ffffffff89509534 RDI: 0000000000000000 [ 57.138159][ C1] RBP: ffff888011a4b864 R08: 0000000000000001 R09: 0000000000000001 [ 57.146133][ C1] R10: ffffffff817f0e08 R11: 0000000000000000 R12: 0000000000000001 [ 57.154089][ C1] R13: ffff888011a4b800 R14: ffff888011a4b864 R15: ffff888017973804 [ 57.162052][ C1] ? trace_hardirqs_on+0x38/0x1c0 [ 57.167073][ C1] ? acpi_idle_do_entry+0x1c4/0x250 [ 57.172270][ C1] ? acpi_idle_do_entry+0x1c4/0x250 [ 57.177475][ C1] acpi_idle_enter+0x361/0x500 [ 57.182233][ C1] cpuidle_enter_state+0x1b1/0xc80 [ 57.187335][ C1] cpuidle_enter+0x4a/0xa0 [ 57.191738][ C1] do_idle+0x3e8/0x590 [ 57.195799][ C1] ? arch_cpu_idle_exit+0x30/0x30 [ 57.200812][ C1] ? _raw_spin_unlock_irqrestore+0x40/0x70 [ 57.206608][ C1] ? lockdep_hardirqs_on+0x79/0x100 [ 57.211798][ C1] cpu_startup_entry+0x14/0x20 [ 57.216554][ C1] start_secondary+0x265/0x340 [ 57.221320][ C1] ? set_cpu_sibling_map+0x1ee0/0x1ee0 [ 57.226864][ C1] secondary_startup_64_no_verify+0xc3/0xcb [ 57.232757][ C1] [ 57.235764][ C1] [ 57.238079][ C1] Allocated by task 20: [ 57.242223][ C1] kasan_save_stack+0x1e/0x40 [ 57.246894][ C1] __kasan_slab_alloc+0x90/0xc0 [ 57.251749][ C1] kmem_cache_alloc_node+0x2c3/0x4f0 [ 57.257019][ C1] __alloc_skb+0x215/0x340 [ 57.261422][ C1] ath9k_hif_usb_alloc_urbs+0x91d/0x1040 [ 57.267043][ C1] ath9k_hif_usb_firmware_cb+0x148/0x530 [ 57.272661][ C1] request_firmware_work_func+0x12c/0x230 [ 57.278385][ C1] process_one_work+0x9ac/0x1650 [ 57.283314][ C1] worker_thread+0x657/0x1110 [ 57.287977][ C1] kthread+0x2e9/0x3a0 [ 57.292030][ C1] ret_from_fork+0x1f/0x30 [ 57.296432][ C1] [ 57.298741][ C1] Freed by task 0: [ 57.302438][ C1] kasan_save_stack+0x1e/0x40 [ 57.307103][ C1] kasan_set_track+0x21/0x30 [ 57.311681][ C1] kasan_set_free_info+0x20/0x30 [ 57.316604][ C1] ____kasan_slab_free+0x126/0x160 [ 57.321703][ C1] slab_free_freelist_hook+0x8b/0x1c0 [ 57.327059][ C1] kmem_cache_free+0xd7/0x370 [ 57.331721][ C1] kfree_skbmem+0xef/0x1b0 [ 57.336127][ C1] kfree_skb_reason+0x145/0x400 [ 57.340966][ C1] ath9k_htc_rx_msg+0x1ed/0xb70 [ 57.345807][ C1] ath9k_hif_usb_reg_in_cb+0x1ac/0x630 [ 57.351253][ C1] __usb_hcd_giveback_urb+0x2b0/0x5c0 [ 57.356614][ C1] usb_hcd_giveback_urb+0x367/0x410 [ 57.361797][ C1] dummy_timer+0x11f9/0x32b0 [ 57.366373][ C1] call_timer_fn+0x1a5/0x6b0 [ 57.370948][ C1] __run_timers.part.0+0x67c/0xa30 [ 57.376041][ C1] run_timer_softirq+0xb3/0x1d0 [ 57.380906][ C1] __do_softirq+0x29b/0x9c2 [ 57.385397][ C1] [ 57.387710][ C1] The buggy address belongs to the object at ffff888073d11500 [ 57.387710][ C1] which belongs to the cache skbuff_head_cache of size 232 [ 57.402265][ C1] The buggy address is located 220 bytes inside of [ 57.402265][ C1] 232-byte region [ffff888073d11500, ffff888073d115e8) [ 57.415524][ C1] The buggy address belongs to the page: [ 57.421136][ C1] page:ffffea0001cf4440 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x73d11 [ 57.431276][ C1] flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) [ 57.438815][ C1] raw: 00fff00000000200 0000000000000000 dead000000000122 ffff8881447b8140 [ 57.447387][ C1] raw: 0000000000000000 00000000000c000c 00000001ffffffff 0000000000000000 [ 57.455957][ C1] page dumped because: kasan: bad access detected [ 57.462349][ C1] page_owner tracks the page as allocated [ 57.468043][ C1] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x112cc0(GFP_USER|__GFP_NOWARN|__GFP_NORETRY), pid 20, ts 56666229404, free_ts 56517048686 [ 57.483850][ C1] get_page_from_freelist+0xa72/0x2f50 [ 57.489321][ C1] __alloc_pages+0x1b2/0x500 [ 57.493916][ C1] alloc_pages+0x1aa/0x310 [ 57.498344][ C1] allocate_slab+0x27f/0x3c0 [ 57.502945][ C1] ___slab_alloc+0xbe1/0x12b0 [ 57.507730][ C1] __slab_alloc.constprop.0+0x4d/0xa0 [ 57.513204][ C1] kmem_cache_alloc_node+0x190/0x4f0 [ 57.518491][ C1] __alloc_skb+0x215/0x340 [ 57.522911][ C1] ath9k_hif_usb_alloc_urbs+0x91d/0x1040 [ 57.528571][ C1] ath9k_hif_usb_firmware_cb+0x148/0x530 [ 57.534197][ C1] request_firmware_work_func+0x12c/0x230 [ 57.539905][ C1] process_one_work+0x9ac/0x1650 [ 57.544830][ C1] worker_thread+0x657/0x1110 [ 57.549497][ C1] kthread+0x2e9/0x3a0 [ 57.553553][ C1] ret_from_fork+0x1f/0x30 [ 57.557955][ C1] page last free stack trace: [ 57.562607][ C1] free_pcp_prepare+0x374/0x870 [ 57.567452][ C1] free_unref_page+0x19/0x690 [ 57.572118][ C1] __unfreeze_partials+0x320/0x340 [ 57.577216][ C1] qlist_free_all+0x6d/0x160 [ 57.581801][ C1] kasan_quarantine_reduce+0x180/0x200 [ 57.587245][ C1] __kasan_slab_alloc+0xa2/0xc0 [ 57.592098][ C1] __kmalloc+0x256/0x450 [ 57.596325][ C1] raw_alloc_io_data+0x157/0x1c0 [ 57.601251][ C1] raw_ioctl+0x1105/0x2690 [ 57.605657][ C1] __x64_sys_ioctl+0x193/0x200 [ 57.610430][ C1] do_syscall_64+0x35/0xb0 [ 57.614862][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 57.620770][ C1] [ 57.623081][ C1] Memory state around the buggy address: [ 57.628692][ C1] ffff888073d11480: fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc fc [ 57.636734][ C1] ffff888073d11500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 57.644793][ C1] >ffff888073d11580: fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc [ 57.652973][ C1] ^ [ 57.659895][ C1] ffff888073d11600: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00 [ 57.667941][ C1] ffff888073d11680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 57.676071][ C1] ================================================================== [ 57.684124][ C1] Disabling lock debugging due to kernel taint [ 57.690253][ C1] Kernel panic - not syncing: panic_on_warn set ... [ 57.696812][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G B 5.17.0-rc4-syzkaller-00002-gd567f5db412e #0 [ 57.715898][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.725936][ C1] Call Trace: [ 57.729198][ C1] [ 57.732025][ C1] dump_stack_lvl+0xcd/0x134 [ 57.736607][ C1] panic+0x2b0/0x6dd [ 57.740489][ C1] ? __warn_printk+0xf3/0xf3 [ 57.745068][ C1] ? kfree_skb_reason+0x33/0x400 [ 57.749995][ C1] ? kfree_skb_reason+0x33/0x400 [ 57.754927][ C1] end_report.cold+0x63/0x6f [ 57.759505][ C1] kasan_report.cold+0x71/0xdf [ 57.764263][ C1] ? kfree_skb_reason+0x33/0x400 [ 57.769190][ C1] kasan_check_range+0x13d/0x180 [ 57.774460][ C1] kfree_skb_reason+0x33/0x400 [ 57.779221][ C1] ath9k_hif_usb_reg_in_cb+0x4c2/0x630 [ 57.784702][ C1] __usb_hcd_giveback_urb+0x2b0/0x5c0 [ 57.790064][ C1] usb_hcd_giveback_urb+0x367/0x410 [ 57.795252][ C1] dummy_timer+0x11f9/0x32b0 [ 57.799856][ C1] ? dummy_dequeue+0x500/0x500 [ 57.804607][ C1] ? dummy_dequeue+0x500/0x500 [ 57.809360][ C1] call_timer_fn+0x1a5/0x6b0 [ 57.813937][ C1] ? timer_fixup_activate+0x350/0x350 [ 57.819294][ C1] ? lock_downgrade+0x6e0/0x6e0 [ 57.824133][ C1] ? _raw_spin_unlock_irq+0x1f/0x40 [ 57.829326][ C1] ? dummy_dequeue+0x500/0x500 [ 57.834084][ C1] __run_timers.part.0+0x67c/0xa30 [ 57.839180][ C1] ? call_timer_fn+0x6b0/0x6b0 [ 57.843925][ C1] ? kvm_sched_clock_read+0x14/0x40 [ 57.849107][ C1] ? sched_clock_cpu+0x15/0x1f0 [ 57.854223][ C1] run_timer_softirq+0xb3/0x1d0 [ 57.859060][ C1] __do_softirq+0x29b/0x9c2 [ 57.863551][ C1] __irq_exit_rcu+0x123/0x180 [ 57.868229][ C1] irq_exit_rcu+0x5/0x20 [ 57.872463][ C1] sysvec_apic_timer_interrupt+0x93/0xc0 [ 57.878082][ C1] [ 57.880991][ C1] [ 57.883915][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 57.889877][ C1] RIP: 0010:acpi_idle_do_entry+0x1c6/0x250 [ 57.895669][ C1] Code: 89 de e8 8d 3b 28 f8 84 db 75 ac e8 04 39 28 f8 e8 af 78 2e f8 eb 0c e8 f8 38 28 f8 0f 00 2d b1 ef c0 00 e8 ec 38 28 f8 fb f4 <9c> 5b 81 e3 00 02 00 00 fa 31 ff 48 89 de e8 c7 3c 28 f8 48 85 db [ 57.915260][ C1] RSP: 0018:ffffc90000d57d18 EFLAGS: 00000293 [ 57.921314][ C1] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 57.929277][ C1] RDX: ffff88801192d700 RSI: ffffffff89509534 RDI: 0000000000000000 [ 57.937231][ C1] RBP: ffff888011a4b864 R08: 0000000000000001 R09: 0000000000000001 [ 57.945183][ C1] R10: ffffffff817f0e08 R11: 0000000000000000 R12: 0000000000000001 [ 57.953136][ C1] R13: ffff888011a4b800 R14: ffff888011a4b864 R15: ffff888017973804 [ 57.961126][ C1] ? trace_hardirqs_on+0x38/0x1c0 [ 57.966151][ C1] ? acpi_idle_do_entry+0x1c4/0x250 [ 57.971337][ C1] ? acpi_idle_do_entry+0x1c4/0x250 [ 57.976526][ C1] acpi_idle_enter+0x361/0x500 [ 57.981314][ C1] cpuidle_enter_state+0x1b1/0xc80 [ 57.986415][ C1] cpuidle_enter+0x4a/0xa0 [ 57.990815][ C1] do_idle+0x3e8/0x590 [ 57.994889][ C1] ? arch_cpu_idle_exit+0x30/0x30 [ 57.999902][ C1] ? _raw_spin_unlock_irqrestore+0x40/0x70 [ 58.005698][ C1] ? lockdep_hardirqs_on+0x79/0x100 [ 58.010898][ C1] cpu_startup_entry+0x14/0x20 [ 58.015649][ C1] start_secondary+0x265/0x340 [ 58.020400][ C1] ? set_cpu_sibling_map+0x1ee0/0x1ee0 [ 58.025847][ C1] secondary_startup_64_no_verify+0xc3/0xcb [ 58.031732][ C1] [ 58.034980][ C1] Kernel Offset: disabled [ 58.039293][ C1] Rebooting in 86400 seconds..