program: syz_usb_connect(0x0, 0x24, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000297ff8208582005109bc10102030109021200010100800009048f0000bf575a00"], 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./mysys\x00', 0x1ff) mount(&(0x7f0000000040)=@filename='none\x00', &(0x7f0000000080)='./mysys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./mysys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0) write(r0, &(0x7f0000000200)='dummy_hcd.0\x00', 0xb) close(r0) r1 = openat(r0, &(0x7f0000000300)='./mysys/bus/platform/drivers/dummy_hcd/bind\x00', 0x200081, 0x0) write$P9_RREADLINK(r1, &(0x7f0000000140)={0x36, 0x17, 0x2, {0x2d, './mysys/bus/platform/drivers/dummy_hcd/unbind'}}, 0x36) write(r1, &(0x7f0000000400)='dummy_hcd.0\x00', 0xb) close(r1) [ 86.568845][ T4637] Bluetooth: hci0: command tx timeout [ 86.692241][ T10] cfg80211: failed to load regulatory.db [ 86.857612][ T5295] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 87.007676][ T5295] usb 5-1: Using ep0 maxpacket: 8 [ 87.011622][ T5295] usb 5-1: New USB device found, idVendor=2058, idProduct=1005, bcdDevice=c1.9b [ 87.017955][ T5295] usb 5-1: config 1 has an invalid interface number: 143 but max is 0 [ 87.021262][ T5295] usb 5-1: config 1 has no interface number 0 [ 87.026008][ T5295] usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 87.029584][ T5295] usb 5-1: Product: syz [ 87.031141][ T5295] usb 5-1: Manufacturer: syz [ 87.032780][ T5295] usb 5-1: SerialNumber: syz [ 87.158817][ T5295] viperboard 5-1:1.143: version 0.00 found at bus 005 address 002 [ 87.200317][ T5295] viperboard-i2c viperboard-i2c.3.auto: error -EIO: failure setting i2c_bus_freq to 100 [ 87.204989][ T5295] viperboard-i2c viperboard-i2c.3.auto: probe with driver viperboard-i2c failed with error -5 [ 87.302028][ T5313] dummy_hcd dummy_hcd.0: remove, state 1 [ 87.307298][ T5313] usb usb5: USB disconnect, device number 1 [ 87.313339][ T5313] usb 5-1: USB disconnect, device number 2 [ 87.450872][ T5313] dummy_hcd dummy_hcd.0: stopped [ 87.455856][ T5313] dummy_hcd dummy_hcd.0: USB bus 5 deregistered [ 87.479753][ T5312] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN NOPTI [ 87.485013][ T5312] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 87.488656][ T5312] CPU: 0 UID: 0 PID: 5312 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 87.492937][ T5312] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 87.497864][ T5312] RIP: 0010:set_link_state+0x27/0x1000 [ 87.500481][ T5312] 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 00 89 09 fa 4c 89 f0 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 f7 e8 4b d1 7a fa 49 8b 16 4d 8d a6 a3 00 [ 87.509461][ T5312] RSP: 0018:ffffc9000eb7fb20 EFLAGS: 00010046 [ 87.512396][ T5312] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff88803ef64b00 [ 87.515840][ T5312] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 87.519277][ T5312] RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004 [ 87.522501][ T5312] R10: dffffc0000000000 R11: fffff52001d6ff60 R12: 0000000000000246 [ 87.525656][ T5312] R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000 [ 87.528782][ T5312] FS: 0000555569f17540(0000) GS:ffff88808c30a000(0000) knlGS:0000000000000000 [ 87.532332][ T5312] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 87.535196][ T5312] CR2: 00007f143781eb10 CR3: 000000001f971000 CR4: 0000000000352ef0 [ 87.538713][ T5312] Call Trace: [ 87.540216][ T5312] [ 87.541552][ T5312] ? rcu_is_watching+0x16/0xb0 [ 87.543678][ T5312] ? __pfx_dummy_pullup+0x10/0x10 [ 87.545934][ T5312] dummy_pullup+0xc4/0x120 [ 87.548027][ T5312] ? __pfx_dummy_pullup+0x10/0x10 [ 87.550260][ T5312] usb_gadget_disconnect_locked+0x126/0x480 [ 87.552828][ T5312] gadget_unbind_driver+0xc2/0x410 [ 87.555100][ T5312] ? __pfx_gadget_unbind_driver+0x10/0x10 [ 87.557579][ T5312] device_release_driver_internal+0x48b/0x880 [ 87.560296][ T5312] driver_detach+0x1f3/0x2d0 [ 87.562287][ T5312] bus_remove_driver+0x226/0x320 [ 87.564405][ T5312] usb_gadget_unregister_driver+0x4e/0x70 [ 87.566881][ T5312] raw_release+0xd7/0x260 [ 87.568772][ T5312] ? __pfx_raw_release+0x10/0x10 [ 87.570950][ T5312] __fput+0x418/0xa50 [ 87.572704][ T5312] task_work_run+0x1d9/0x270 [ 87.574833][ T5312] ? __pfx_task_work_run+0x10/0x10 [ 87.577090][ T5312] exit_to_user_mode_loop+0x204/0x770 [ 87.579131][ T5312] ? rcu_is_watching+0x16/0xb0 [ 87.581134][ T5312] do_syscall_64+0x328/0x520 [ 87.583059][ T5312] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 87.585759][ T5312] ? clear_bhb_loop+0x70/0xc0 [ 87.587877][ T5312] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 87.590486][ T5312] RIP: 0033:0x7f143759e0d9 [ 87.592439][ T5312] 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 [ 87.600646][ T5312] RSP: 002b:00007ffff83b7558 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 87.604205][ T5312] RAX: 0000000000000000 RBX: 00007f1437827da0 RCX: 00007f143759e0d9 [ 87.607613][ T5312] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 [ 87.611119][ T5312] RBP: 00007f1437827da0 R08: 00007f1437826038 R09: 0000000000000000 [ 87.614472][ T5312] R10: 0000000000df3090 R11: 0000000000000246 R12: 0000000000016049 [ 87.617854][ T5312] R13: 00007f143782609c R14: 00000000000154c2 R15: 00007f1437826090 [ 87.621041][ T5312] [ 87.622330][ T5312] Modules linked in: [ 87.623905][ T5312] ---[ end trace 0000000000000000 ]--- [ 87.626157][ T5312] RIP: 0010:set_link_state+0x27/0x1000 [ 87.628572][ T5312] 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 00 89 09 fa 4c 89 f0 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 f7 e8 4b d1 7a fa 49 8b 16 4d 8d a6 a3 00 [ 87.636664][ T5312] RSP: 0018:ffffc9000eb7fb20 EFLAGS: 00010046 [ 87.639190][ T5312] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff88803ef64b00 [ 87.642581][ T5312] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 87.645942][ T5312] RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004 [ 87.649597][ T5312] R10: dffffc0000000000 R11: fffff52001d6ff60 R12: 0000000000000246 [ 87.653072][ T5312] R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000 [ 87.656471][ T5312] FS: 0000555569f17540(0000) GS:ffff88808c30a000(0000) knlGS:0000000000000000 [ 87.660543][ T5312] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 87.663447][ T5312] CR2: 00007f143781eb10 CR3: 000000001f971000 CR4: 0000000000352ef0 [ 87.666975][ T5312] Kernel panic - not syncing: Fatal exception [ 87.670169][ T5312] Kernel Offset: disabled [ 87.672103][ T5312] Rebooting in 86400 seconds..