program: r0 = syz_open_dev$tty1(0xc, 0x4, 0x1) ioctl$KDSKBENT(r0, 0x4b47, 0x0) r1 = syz_open_dev$usbmon(&(0x7f0000000000), 0x5dc0, 0xa502) r2 = openat$vim2m(0xffffffffffffff9c, &(0x7f0000000040), 0x2, 0x0) r3 = syz_open_dev$dri(&(0x7f0000000000), 0x2, 0x0) ioctl$DRM_IOCTL_SYNCOBJ_FD_TO_HANDLE_SYNC_FILE(r3, 0xc01064c2, &(0x7f00000000c0)) fcntl$dupfd(r1, 0x406, r2) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./mysys\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./mysys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r4 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./mysys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0) write(r4, &(0x7f0000000200)='dummy_hcd.0', 0xb) r5 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./mysys/bus/platform/drivers/dummy_hcd/bind\x00', 0x1, 0x0) r6 = syz_open_dev$tty1(0xc, 0x4, 0x1) ioctl$KDFONTOP_COPY(r6, 0x4b72, &(0x7f00000009c0)={0x3, 0x0, 0x18, 0x1e, 0xd7, 0x0}) r7 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000000)=ANY=[@ANYBLOB="12013f00000000407f04ffff000000000001090224000100000000090400001503000000092140000001220f00090581d7"], 0x0) syz_usb_control_io$hid(r7, 0x0, 0x0) syz_usb_control_io$hid(r7, &(0x7f00000002c0)={0x24, 0x0, 0x0, &(0x7f0000000200)=ANY=[@ANYBLOB="00220f000000540b4550182195f57584b3"], 0x0}, 0x0) ioctl$XFS_IOC_FSGROWFSRT(r1, 0x40105870, &(0x7f0000000140)={0x7, 0x4}) r8 = syz_open_dev$hiddev(&(0x7f0000000540), 0x0, 0x0) ioctl$HIDIOCGREPORTINFO(r8, 0xc00c4809, &(0x7f0000000100)={0x3, 0x100, 0x8003d8}) write(r5, &(0x7f0000000400)='dummy_hcd.0', 0xb) [ 94.604789][ T5323] dummy_hcd dummy_hcd.0: remove, state 4 [ 94.610222][ T5323] usb usb5: USB disconnect, device number 1 [ 94.637016][ T4650] Bluetooth: hci0: command tx timeout [ 94.721290][ T5323] dummy_hcd dummy_hcd.0: stopped [ 94.723605][ T5323] dummy_hcd dummy_hcd.0: USB bus 5 deregistered [ 96.667809][ T4650] Bluetooth: hci0: command tx timeout [ 97.602344][ T5322] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN NOPTI [ 97.607714][ T5322] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 97.611249][ T5322] CPU: 0 UID: 0 PID: 5322 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 97.615092][ T5322] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 97.619302][ T5322] RIP: 0010:set_link_state+0x27/0x1000 [ 97.621612][ T5322] 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 80 b1 0e fa 4c 89 f0 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 f7 e8 0b e4 7d fa 49 8b 16 4d 8d a6 a3 00 [ 97.629449][ T5322] RSP: 0018:ffffc9000f7cf780 EFLAGS: 00010046 [ 97.631970][ T5322] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff88801c322540 [ 97.635352][ T5322] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 97.638663][ T5322] RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004 [ 97.642054][ T5322] R10: dffffc0000000000 R11: fffff52001ef9eec R12: 0000000000000246 [ 97.645391][ T5322] R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000 [ 97.648714][ T5322] FS: 0000000000000000(0000) GS:ffff88808c540000(0000) knlGS:0000000000000000 [ 97.652432][ T5322] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 97.655260][ T5322] CR2: 0000556447789660 CR3: 00000000505cf000 CR4: 0000000000352ef0 [ 97.658601][ T5322] Call Trace: [ 97.659999][ T5322] [ 97.661280][ T5322] ? rcu_is_watching+0x15/0xb0 [ 97.663409][ T5322] ? __pfx_dummy_pullup+0x10/0x10 [ 97.665608][ T5322] dummy_pullup+0xc4/0x120 [ 97.667575][ T5322] ? __pfx_dummy_pullup+0x10/0x10 [ 97.669691][ T5322] usb_gadget_disconnect_locked+0x126/0x480 [ 97.672163][ T5322] gadget_unbind_driver+0xc2/0x410 [ 97.674475][ T5322] ? __pfx_gadget_unbind_driver+0x10/0x10 [ 97.676794][ T5322] device_release_driver_internal+0x48b/0x880 [ 97.679388][ T5322] driver_detach+0x1f3/0x2d0 [ 97.681405][ T5322] bus_remove_driver+0x226/0x320 [ 97.683600][ T5322] usb_gadget_unregister_driver+0x4e/0x70 [ 97.685827][ T5322] raw_release+0xd7/0x260 [ 97.687554][ T5322] ? __pfx_raw_release+0x10/0x10 [ 97.689687][ T5322] __fput+0x418/0xa50 [ 97.691472][ T5322] task_work_run+0x1d9/0x270 [ 97.693423][ T5322] ? __pfx_task_work_run+0x10/0x10 [ 97.695552][ T5322] ? do_raw_spin_unlock+0x4d/0x210 [ 97.697692][ T5322] do_exit+0x73a/0x2360 [ 97.699545][ T5322] ? __pfx_do_exit+0x10/0x10 [ 97.701612][ T5322] ? do_raw_spin_lock+0x12b/0x2f0 [ 97.703782][ T5322] do_group_exit+0x22d/0x2f0 [ 97.705768][ T5322] ? _raw_spin_unlock_irq+0x23/0x50 [ 97.707982][ T5322] get_signal+0x121b/0x12c0 [ 97.710192][ T5322] arch_do_signal_or_restart+0xbb/0x860 [ 97.712796][ T5322] ? kvm_clock_get_cycles+0x47/0x60 [ 97.714964][ T5322] ? __pfx_arch_do_signal_or_restart+0x10/0x10 [ 97.717632][ T5322] exit_to_user_mode_loop+0x104/0x730 [ 97.719898][ T5322] ? rcu_is_watching+0x15/0xb0 [ 97.721908][ T5322] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 97.724554][ T5322] do_syscall_64+0x353/0x580 [ 97.726569][ T5322] ? clear_bhb_loop+0x40/0x90 [ 97.728623][ T5322] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 97.731244][ T5322] RIP: 0033:0x7f05c639e019 [ 97.733193][ T5322] Code: Unable to access opcode bytes at 0x7f05c639dfef. [ 97.736086][ T5322] RSP: 002b:00007ffe6b0ee988 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 97.739483][ T5322] RAX: fffffffffffffdfc RBX: 000000000001714f RCX: 00007f05c639e019 [ 97.742979][ T5322] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f05c662609c [ 97.746290][ T5322] RBP: 0000000000000bea R08: 3fffffffffffffff R09: 0000000000000000 [ 97.749713][ T5322] R10: 00007ffe6b0eea90 R11: 0000000000000246 R12: 00007ffe6b0eeab0 [ 97.752546][ T5322] R13: 00007f05c662609c R14: 0000000000017d39 R15: 00007ffe6b0eea90 [ 97.755414][ T5322] [ 97.756566][ T5322] Modules linked in: [ 97.758083][ T5322] ---[ end trace 0000000000000000 ]--- [ 97.760348][ T5322] RIP: 0010:set_link_state+0x27/0x1000 [ 97.762754][ T5322] 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 80 b1 0e fa 4c 89 f0 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 f7 e8 0b e4 7d fa 49 8b 16 4d 8d a6 a3 00 [ 97.770586][ T5322] RSP: 0018:ffffc9000f7cf780 EFLAGS: 00010046 [ 97.773270][ T5322] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff88801c322540 [ 97.776707][ T5322] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 97.779989][ T5322] RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004 [ 97.783457][ T5322] R10: dffffc0000000000 R11: fffff52001ef9eec R12: 0000000000000246 [ 97.786649][ T5322] R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000 [ 97.789982][ T5322] FS: 0000000000000000(0000) GS:ffff88808c540000(0000) knlGS:0000000000000000 [ 97.793715][ T5322] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 97.796504][ T5322] CR2: 0000556447789660 CR3: 00000000505cf000 CR4: 0000000000352ef0 [ 97.799945][ T5322] Kernel panic - not syncing: Fatal exception [ 97.802947][ T5322] Kernel Offset: disabled [ 97.804845][ T5322] Rebooting in 86400 seconds..