yurex 5-1:0.150: yurex_interrupt - unknown status received: -71
usb 5-1: USB disconnect, device number 55
yurex 5-1:0.150: yurex_interrupt - unknown status received: -71
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] SMP KASAN PTI
CPU: 0 PID: 5356 Comm: syz-executor.4 Not tainted 5.1.0-rc5-319617-gd34f951 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:dev_name include/linux/device.h:1087 [inline]
RIP: 0010:__dev_printk+0x3f/0x215 drivers/base/core.c:3208
Code: 89 f5 53 e8 1e 24 1c fc 48 85 ed 0f 84 c9 01 00 00 e8 10 24 1c fc 48 8d 7d 50 b8 ff ff 37 00 48 89 fa 48 c1 e0 2a 48 c1 ea 03 <80> 3c 02 00 74 05 e8 31 39 53 fc 4c 8b 7d 50 4d 85 ff 75 28 e8 e3
RSP: 0018:ffff8880ad007930 EFLAGS: 00010002
RAX: dffffc0000000000 RBX: ffffed1015a00f2d RCX: 00000000ffffffed
RDX: 0000000000000010 RSI: ffffffff85559bf0 RDI: 0000000000000080
RBP: 0000000000000030 R08: ffff888092d6c980 R09: ffffed1015a04fc9
R10: ffffed1015a04fc8 R11: ffff8880ad027e47 R12: ffffffff8f031a00
R13: ffff8880ad007988 R14: 0000000000000000 R15: ffff88809548e100
FS:  0000000000a57940(0000) GS:ffff8880ad000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff548a2ec8 CR3: 0000000074002000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 _dev_err+0xdc/0x10e drivers/base/core.c:3251
 yurex_interrupt.cold+0x12e/0x13d drivers/usb/misc/yurex.c:183
 __usb_hcd_giveback_urb+0x1f4/0x470 drivers/usb/core/hcd.c:1758
 usb_hcd_giveback_urb+0x346/0x400 drivers/usb/core/hcd.c:1823
 dummy_timer+0x100b/0x32c0 drivers/usb/gadget/udc/dummy_hcd.c:1968
 call_timer_fn+0x161/0x5f0 kernel/time/timer.c:1325
 expire_timers kernel/time/timer.c:1362 [inline]
 __run_timers kernel/time/timer.c:1681 [inline]
 __run_timers kernel/time/timer.c:1649 [inline]
 run_timer_softirq+0x58b/0x1400 kernel/time/timer.c:1694
 __do_softirq+0x22a/0x8cd kernel/softirq.c:293
 invoke_softirq kernel/softirq.c:374 [inline]
 irq_exit+0x187/0x1b0 kernel/softirq.c:414
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0xfe/0x4a0 arch/x86/kernel/apic/apic.c:1062
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807
 </IRQ>
RIP: 0010:link_path_walk.part.0+0x89a/0x1230 fs/namei.c:2124
Code: 48 b9 00 00 00 00 00 fc ff df 48 c1 e8 03 0f b6 04 08 84 c0 74 08 3c 03 0f 8e 43 08 00 00 41 8b 6e 38 49 89 df e9 ce f8 ff ff <e8> 91 7f bc ff 49 83 c7 01 48 b9 00 00 00 00 00 fc ff df 4c 89 f8
RSP: 0018:ffff88807400fa70 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 000000000000002f RCX: ffffffff81b53c5a
RDX: 000000000000002f RSI: 0000000000000000 RDI: 0000000000000001
RBP: 00000000dbe9da91 R08: ffff888092d6c980 R09: 0000000000000000
R10: 0000000000000020 R11: 0000000000000000 R12: ffff88807400fce4
R13: 00000001dbe9da91 R14: ffff88807400fca0 R15: ffff88809578e621
 link_path_walk fs/namei.c:2070 [inline]
 path_mountpoint+0xe5/0x1a90 fs/namei.c:2692
 filename_mountpoint+0x195/0x3c0 fs/namei.c:2715
 ksys_umount+0x154/0xe30 fs/namespace.c:1687
 __do_sys_umount fs/namespace.c:1713 [inline]
 __se_sys_umount fs/namespace.c:1711 [inline]
 __x64_sys_umount+0x55/0x80 fs/namespace.c:1711
 do_syscall_64+0xcf/0x4f0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45b677
Code: 44 00 00 b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 4d 8e fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 2d 8e fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fff548a2ec8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: ffffffffffffffda RBX: 0000000000000058 RCX: 000000000045b677
RDX: 000000000000000c RSI: 0000000000000002 RDI: 00007fff548a4000
RBP: 0000000000000148 R08: 0000000000000001 R09: 0000000000a57940
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff548a4000
R13: 00007fff548a3ff0 R14: 0000000000000000 R15: 00007fff548a4000
Modules linked in:
---[ end trace bc73aa74283c3732 ]---
RIP: 0010:dev_name include/linux/device.h:1087 [inline]
RIP: 0010:__dev_printk+0x3f/0x215 drivers/base/core.c:3208
Code: 89 f5 53 e8 1e 24 1c fc 48 85 ed 0f 84 c9 01 00 00 e8 10 24 1c fc 48 8d 7d 50 b8 ff ff 37 00 48 89 fa 48 c1 e0 2a 48 c1 ea 03 <80> 3c 02 00 74 05 e8 31 39 53 fc 4c 8b 7d 50 4d 85 ff 75 28 e8 e3
RSP: 0018:ffff8880ad007930 EFLAGS: 00010002
RAX: dffffc0000000000 RBX: ffffed1015a00f2d RCX: 00000000ffffffed
RDX: 0000000000000010 RSI: ffffffff85559bf0 RDI: 0000000000000080
RBP: 0000000000000030 R08: ffff888092d6c980 R09: ffffed1015a04fc9
R10: ffffed1015a04fc8 R11: ffff8880ad027e47 R12: ffffffff8f031a00
R13: ffff8880ad007988 R14: 0000000000000000 R15: ffff88809548e100
FS:  0000000000a57940(0000) GS:ffff8880ad000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff548a2ec8 CR3: 0000000074002000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400