general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 PID: 4378 Comm: syz.4.5 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:vhci_hcd_probe+0x43/0x370 drivers/usb/usbip/vhci_hcd.c:1365
Code: 83 1b e8 fa 49 8d 9e 80 00 00 00 48 89 d8 48 c1 e8 03 80 3c 28 00 74 08 48 89 df e8 27 48 39 fb 48 8b 1b 48 89 d8 48 c1 e8 03 <80> 3c 28 00 74 08 48 89 df e8 0f 48 39 fb 4c 8b 2b 48 c7 c0 20 82
RSP: 0018:ffffc90004affa78 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc9000ebe1000 RSI: 0000000000002622 RDI: 0000000000002623
RBP: dffffc0000000000 R08: ffff8881453c7743 R09: 1ffff11028a78ee8
R10: dffffc0000000000 R11: ffffed1028a78ee9 R12: ffff888144aff3d0
R13: ffffffff8d8119a0 R14: ffff888144aff000 R15: 1ffffffff1b02334
FS:  00007f24890176c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c38fbd8 CR3: 000000007e0a8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 platform_probe+0x137/0x1c0 drivers/base/platform.c:1400
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x24a/0xb40 drivers/base/dd.c:638
 __driver_probe_device+0x1f5/0x390 drivers/base/dd.c:804
 device_driver_attach+0xd9/0x1c0 drivers/base/dd.c:1131
 bind_store+0x33b/0x380 drivers/base/bus.c:216
 kernfs_fop_write_iter+0x3a0/0x520 fs/kernfs/file.c:352
 call_write_iter include/linux/fs.h:2265 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x482/0x9a0 fs/read_write.c:584
 ksys_write+0x14d/0x260 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f248819e0d9
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
RSP: 002b:00007f2489017028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f2488425fa0 RCX: 00007f248819e0d9
RDX: 0000000000000006 RSI: 00002000000001c0 RDI: 0000000000000004
RBP: 00007f2488235024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2488426038 R14: 00007f2488425fa0 R15: 00007ffc151c90a8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:vhci_hcd_probe+0x43/0x370 drivers/usb/usbip/vhci_hcd.c:1365
Code: 83 1b e8 fa 49 8d 9e 80 00 00 00 48 89 d8 48 c1 e8 03 80 3c 28 00 74 08 48 89 df e8 27 48 39 fb 48 8b 1b 48 89 d8 48 c1 e8 03 <80> 3c 28 00 74 08 48 89 df e8 0f 48 39 fb 4c 8b 2b 48 c7 c0 20 82
RSP: 0018:ffffc90004affa78 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc9000ebe1000 RSI: 0000000000002622 RDI: 0000000000002623
RBP: dffffc0000000000 R08: ffff8881453c7743 R09: 1ffff11028a78ee8
R10: dffffc0000000000 R11: ffffed1028a78ee9 R12: ffff888144aff3d0
R13: ffffffff8d8119a0 R14: ffff888144aff000 R15: 1ffffffff1b02334
FS:  00007f24890176c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f24881eb7c0 CR3: 000000007e0a8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	83 1b e8             	sbbl   $0xffffffe8,(%rbx)
   3:	fa                   	cli
   4:	49 8d 9e 80 00 00 00 	lea    0x80(%r14),%rbx
   b:	48 89 d8             	mov    %rbx,%rax
   e:	48 c1 e8 03          	shr    $0x3,%rax
  12:	80 3c 28 00          	cmpb   $0x0,(%rax,%rbp,1)
  16:	74 08                	je     0x20
  18:	48 89 df             	mov    %rbx,%rdi
  1b:	e8 27 48 39 fb       	call   0xfb394847
  20:	48 8b 1b             	mov    (%rbx),%rbx
  23:	48 89 d8             	mov    %rbx,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	80 3c 28 00          	cmpb   $0x0,(%rax,%rbp,1) <-- trapping instruction
  2e:	74 08                	je     0x38
  30:	48 89 df             	mov    %rbx,%rdi
  33:	e8 0f 48 39 fb       	call   0xfb394847
  38:	4c 8b 2b             	mov    (%rbx),%r13
  3b:	48                   	rex.W
  3c:	c7                   	.byte 0xc7
  3d:	c0 20 82             	shlb   $0x82,(%rax)