program: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./mysys\x00', 0x1ff) r0 = openat(0xffffffffffffff9c, &(0x7f0000000540)='mnt\x00', 0x0, 0x0) ioctl$FS_IOC_ADD_ENCRYPTION_KEY(r0, 0xc0506617, &(0x7f0000000580)={@desc={0x1, 0x0, @desc4}, 0x10, 0x0, '\x00', @d}) (async) ioctl$FS_IOC_ADD_ENCRYPTION_KEY(r0, 0xc0506617, &(0x7f0000000580)={@desc={0x1, 0x0, @desc4}, 0x10, 0x0, '\x00', @d}) syz_usb_connect_ath9k(0x3, 0x5a, &(0x7f0000000140)={{0x12, 0x1, 0x200, 0xff, 0xff, 0xff, 0x40, 0xcf3, 0x9271, 0x108, 0x1, 0x2, 0x3, 0x2a9e524, [{{0x9, 0x2, 0x48}}]}}, 0x0) openat$snapshot(0xffffffffffffff9c, &(0x7f0000000040), 0x80a41, 0x0) (async) openat$snapshot(0xffffffffffffff9c, &(0x7f0000000040), 0x80a41, 0x0) bpf$OBJ_PIN_MAP(0x6, &(0x7f0000000140)=@o_path={&(0x7f0000000040)='./mysys/bus/platform/drivers/dummy_hcd/unbind/file0\x00', r0}, 0x18) mount(0x0, &(0x7f0000000080)='./mysys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) (async) mount(0x0, &(0x7f0000000080)='./mysys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./mysys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0) write(r1, &(0x7f0000000200)='dummy_hcd.0', 0xb) [ 134.907855][ T4650] Bluetooth: hci0: command tx timeout [ 135.280470][ T5315] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 135.431745][ T5315] usb 5-1: too many configurations: 36, using maximum allowed: 8 [ 135.448417][ T5315] usb 5-1: New USB device found, idVendor=0cf3, idProduct=9271, bcdDevice= 1.08 [ 135.451971][ T5315] usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 135.455116][ T5315] usb 5-1: Product: syz [ 135.456851][ T5315] usb 5-1: Manufacturer: syz [ 135.458723][ T5315] usb 5-1: SerialNumber: syz [ 135.531274][ T1394] usb 5-1: ath9k_htc: Transferred FW: ath9k_htc/htc_9271-1.4.0.fw, size: 51008 [ 135.741781][ T5328] random: crng reseeded on system resumption [ 135.758950][ T5327] dummy_hcd dummy_hcd.0: remove, state 1 [ 135.763908][ T5327] usb usb5: USB disconnect, device number 1 [ 135.766585][ T5327] usb 5-1: USB disconnect, device number 2 [ 136.580944][ T1394] ath9k_htc 5-1:1.0: ath9k_htc: Target is unresponsive [ 136.584322][ T1394] ath9k_htc: Failed to initialize the device [ 136.590661][ T5327] usb 5-1: ath9k_htc: USB layer deinitialized [ 136.639783][ T5327] dummy_hcd dummy_hcd.0: stopped [ 136.647580][ T5327] dummy_hcd dummy_hcd.0: USB bus 5 deregistered [ 136.668457][ T5326] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN NOPTI [ 136.673756][ T5326] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 136.677452][ T5326] CPU: 0 UID: 0 PID: 5326 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 136.681466][ T5326] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 136.685406][ T5326] RIP: 0010:set_link_state+0x27/0x1000 [ 136.687612][ T5326] Code: 90 90 90 55 41 57 41 56 41 55 41 54 53 48 83 ec 38 49 89 fe 48 bb 00 00 00 00 00 fc ff df e8 a0 ad 0e fa 4c 89 f0 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 f7 e8 3b e0 7d fa 49 8b 16 4d 8d a6 a3 00 [ 136.695554][ T5326] RSP: 0018:ffffc9000e1ffb20 EFLAGS: 00010046 [ 136.698542][ T5326] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff88803a0dca80 [ 136.702536][ T5326] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 136.705951][ T5326] RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004 [ 136.709285][ T5326] R10: dffffc0000000000 R11: fffff52001c3ff60 R12: 0000000000000246 [ 136.712615][ T5326] R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000 [ 136.716003][ T5326] FS: 00005555660f8540(0000) GS:ffff88808c540000(0000) knlGS:0000000000000000 [ 136.719704][ T5326] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 136.722502][ T5326] CR2: 000055ee82f093f8 CR3: 000000003fee7000 CR4: 0000000000352ef0 [ 136.726032][ T5326] Call Trace: [ 136.727564][ T5326] [ 136.728872][ T5326] ? rcu_is_watching+0x15/0xb0 [ 136.730921][ T5326] ? __pfx_dummy_pullup+0x10/0x10 [ 136.733057][ T5326] dummy_pullup+0xc4/0x120 [ 136.734958][ T5326] ? __pfx_dummy_pullup+0x10/0x10 [ 136.737064][ T5326] usb_gadget_disconnect_locked+0x126/0x480 [ 136.739523][ T5326] gadget_unbind_driver+0xc2/0x410 [ 136.741659][ T5326] ? __pfx_gadget_unbind_driver+0x10/0x10 [ 136.744029][ T5326] device_release_driver_internal+0x48b/0x880 [ 136.746665][ T5326] driver_detach+0x1f3/0x2d0 [ 136.748800][ T5326] bus_remove_driver+0x226/0x320 [ 136.750869][ T5326] usb_gadget_unregister_driver+0x4e/0x70 [ 136.753468][ T5326] raw_release+0xd7/0x260 [ 136.755313][ T5326] ? __pfx_raw_release+0x10/0x10 [ 136.757439][ T5326] __fput+0x418/0xa50 [ 136.759103][ T5326] task_work_run+0x1d9/0x270 [ 136.761055][ T5326] ? __pfx_task_work_run+0x10/0x10 [ 136.763253][ T5326] exit_to_user_mode_loop+0x1fa/0x730 [ 136.765470][ T5326] ? rcu_is_watching+0x15/0xb0 [ 136.767270][ T5326] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 136.769741][ T5326] do_syscall_64+0x353/0x580 [ 136.771739][ T5326] ? clear_bhb_loop+0x40/0x90 [ 136.773778][ T5326] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 136.776324][ T5326] RIP: 0033:0x7ffb7a79e0d9 [ 136.778260][ T5326] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 [ 136.786022][ T5326] RSP: 002b:00007ffd57cd9f18 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 136.789230][ T5326] RAX: 0000000000000000 RBX: 00007ffb7aa27da0 RCX: 00007ffb7a79e0d9 [ 136.792270][ T5326] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 [ 136.795577][ T5326] RBP: 00007ffb7aa27da0 R08: 00007ffb7aa26038 R09: 0000000000000000 [ 136.798905][ T5326] R10: 0000000000dffd4c R11: 0000000000000246 R12: 0000000000021d7a [ 136.802175][ T5326] R13: 00007ffb7aa25fac R14: 00000000000211c1 R15: 00007ffd57cda020 [ 136.805474][ T5326] [ 136.806792][ T5326] Modules linked in: [ 136.808416][ T5326] ---[ end trace 0000000000000000 ]--- [ 136.810611][ T5326] RIP: 0010:set_link_state+0x27/0x1000 [ 136.812939][ T5326] Code: 90 90 90 55 41 57 41 56 41 55 41 54 53 48 83 ec 38 49 89 fe 48 bb 00 00 00 00 00 fc ff df e8 a0 ad 0e fa 4c 89 f0 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 f7 e8 3b e0 7d fa 49 8b 16 4d 8d a6 a3 00 [ 136.820774][ T5326] RSP: 0018:ffffc9000e1ffb20 EFLAGS: 00010046 [ 136.823337][ T5326] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff88803a0dca80 [ 136.826657][ T5326] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 136.830004][ T5326] RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004 [ 136.833344][ T5326] R10: dffffc0000000000 R11: fffff52001c3ff60 R12: 0000000000000246 [ 136.836609][ T5326] R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000 [ 136.839851][ T5326] FS: 00005555660f8540(0000) GS:ffff88808c540000(0000) knlGS:0000000000000000 [ 136.843755][ T5326] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 136.846545][ T5326] CR2: 000055ee82f093f8 CR3: 000000003fee7000 CR4: 0000000000352ef0 [ 136.849849][ T5326] Kernel panic - not syncing: Fatal exception [ 136.852797][ T5326] Kernel Offset: disabled [ 136.854553][ T5326] Rebooting in 86400 seconds..