Oops: general protection fault, probably for non-canonical address 0xdffffc0000000081: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000408-0x000000000000040f]
CPU: 0 UID: 0 PID: 7565 Comm: syz.3.338 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:status_show_vhci drivers/usb/usbip/vhci_sysfs.c:80 [inline]
RIP: 0010:status_show+0x30f/0x5d0 drivers/usb/usbip/vhci_sysfs.c:160
Code: 03 80 3c 02 00 0f 85 b3 02 00 00 48 8b 9b 88 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bb 08 04 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 94 02 00 00 4c 8b b3 08 04 00 00 c1 e5 04 41 bc
RSP: 0018:ffffc9000b0dfac0 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9000c64b000
RDX: 0000000000000081 RSI: ffffffff87858fce RDI: 0000000000000408
RBP: 000000000000000f R08: 0000000000000005 R09: 0000000000000000
R10: 000000000000000f R11: 2020766564206470 R12: ffff88803339802d
R13: ffffc9000b0dfb10 R14: ffff888033398000 R15: ffff8880776d2df8
FS:  00007fe1173f66c0(0000) GS:ffff8881248fc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31718ff8 CR3: 000000007c716000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 dev_attr_show+0x56/0xe0 drivers/base/core.c:2421
 sysfs_kf_seq_show+0x216/0x3e0 fs/sysfs/file.c:65
 seq_read_iter+0x50e/0x12d0 fs/seq_file.c:230
 kernfs_fop_read_iter+0x46c/0x610 fs/kernfs/file.c:297
 new_sync_read fs/read_write.c:491 [inline]
 vfs_read+0x8bf/0xcf0 fs/read_write.c:572
 ksys_read+0x12a/0x250 fs/read_write.c:715
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe11918f7c9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe1173f6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fe1193e5fa0 RCX: 00007fe11918f7c9
RDX: 0000000000000049 RSI: 0000200000000200 RDI: 0000000000000006
RBP: 00007fe119213f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe1193e6038 R14: 00007fe1193e5fa0 R15: 00007ffcbadf5e08
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:status_show_vhci drivers/usb/usbip/vhci_sysfs.c:80 [inline]
RIP: 0010:status_show+0x30f/0x5d0 drivers/usb/usbip/vhci_sysfs.c:160
Code: 03 80 3c 02 00 0f 85 b3 02 00 00 48 8b 9b 88 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bb 08 04 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 94 02 00 00 4c 8b b3 08 04 00 00 c1 e5 04 41 bc
RSP: 0018:ffffc9000b0dfac0 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9000c64b000
RDX: 0000000000000081 RSI: ffffffff87858fce RDI: 0000000000000408
RBP: 000000000000000f R08: 0000000000000005 R09: 0000000000000000
R10: 000000000000000f R11: 2020766564206470 R12: ffff88803339802d
R13: ffffc9000b0dfb10 R14: ffff888033398000 R15: ffff8880776d2df8
FS:  00007fe1173f66c0(0000) GS:ffff8881248fc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b316fcff8 CR3: 000000007c716000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	03 80 3c 02 00 0f    	add    0xf00023c(%rax),%eax
   6:	85 b3 02 00 00 48    	test   %esi,0x48000002(%rbx)
   c:	8b 9b 88 00 00 00    	mov    0x88(%rbx),%ebx
  12:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  19:	fc ff df
  1c:	48 8d bb 08 04 00 00 	lea    0x408(%rbx),%rdi
  23:	48 89 fa             	mov    %rdi,%rdx
  26:	48 c1 ea 03          	shr    $0x3,%rdx
* 2a:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1) <-- trapping instruction
  2e:	0f 85 94 02 00 00    	jne    0x2c8
  34:	4c 8b b3 08 04 00 00 	mov    0x408(%rbx),%r14
  3b:	c1 e5 04             	shl    $0x4,%ebp
  3e:	41                   	rex.B
  3f:	bc                   	.byte 0xbc