general protection fault, probably for non-canonical address 0xdffffc00000000e3: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000718-0x000000000000071f]
CPU: 1 PID: 5908 Comm: syz.1.22 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:ucsi_acpi_probe+0x6c/0x500 drivers/usb/typec/ucsi/ucsi_acpi.c:223
Code: 89 74 24 08 4c 8b 23 4c 89 e7 e8 9f 24 a4 fd 49 83 c4 f0 45 31 f6 84 c0 4d 0f 45 f4 49 81 c6 1c 07 00 00 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 47 04 00 00 41 8b 2e 31 ff 89 ee e8 6b
RSP: 0018:ffffc90005057b08 EFLAGS: 00010203
RAX: 00000000000000e3 RBX: ffff88801be94420 RCX: 0000000000080000
RDX: ffffc9000caca000 RSI: 0000000000000913 RDI: 0000000000000914
RBP: 0000000000000000 R08: ffff888026b3e8bb R09: 1ffff11004d67d17
R10: dffffc0000000000 R11: ffffed1004d67d18 R12: fffffffffffffff0
R13: dffffc0000000000 R14: 000000000000071c R15: 1ffff110037d2884
FS:  00007fa971e4e6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c43ffc0 CR3: 000000002eeea000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 platform_probe+0x13b/0x1c0 drivers/base/platform.c:1376
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x247/0xae0 drivers/base/dd.c:717
 __driver_probe_device+0x1f5/0x390 drivers/base/dd.c:879
 device_driver_attach+0xe0/0x1d0 drivers/base/dd.c:1206
 bind_store+0x1cc/0x210 drivers/base/bus.c:267
 kernfs_fop_write_iter+0x3a4/0x520 fs/kernfs/file.c:352
 call_write_iter include/linux/fs.h:2018 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x474/0x9a0 fs/read_write.c:584
 ksys_write+0x151/0x260 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fa970f9e0d9
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:00007fa971e4e028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fa971225fa0 RCX: 00007fa970f9e0d9
RDX: 0000000000000006 RSI: 00002000000001c0 RDI: 0000000000000003
RBP: 00007fa971035024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa971226038 R14: 00007fa971225fa0 R15: 00007ffe12efbd08
 </TASK>
Modules linked in:
RSP: 0018:ffffc90005057b08 EFLAGS: 00010203
RAX: 00000000000000e3 RBX: ffff88801be94420 RCX: 0000000000080000
RDX: ffffc9000caca000 RSI: 0000000000000913 RDI: 0000000000000914
RBP: 0000000000000000 R08: ffff888026b3e8bb R09: 1ffff11004d67d17
R10: dffffc0000000000 R11: ffffed1004d67d18 R12: fffffffffffffff0
R13: dffffc0000000000 R14: 000000000000071c R15: 1ffff110037d2884
FS:  00007fa971e4e6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa971e2cff8 CR3: 000000002eeea000 CR4: 00000000003506f0
----------------
Code disassembly (best guess):
   0:	89 74 24 08          	mov    %esi,0x8(%rsp)
   4:	4c 8b 23             	mov    (%rbx),%r12
   7:	4c 89 e7             	mov    %r12,%rdi
   a:	e8 9f 24 a4 fd       	call   0xfda424ae
   f:	49 83 c4 f0          	add    $0xfffffffffffffff0,%r12
  13:	45 31 f6             	xor    %r14d,%r14d
  16:	84 c0                	test   %al,%al
  18:	4d 0f 45 f4          	cmovne %r12,%r14
  1c:	49 81 c6 1c 07 00 00 	add    $0x71c,%r14
  23:	4c 89 f0             	mov    %r14,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 0f b6 04 28       	movzbl (%rax,%r13,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	0f 85 47 04 00 00    	jne    0x47e
  37:	41 8b 2e             	mov    (%r14),%ebp
  3a:	31 ff                	xor    %edi,%edi
  3c:	89 ee                	mov    %ebp,%esi
  3e:	e8                   	.byte 0xe8
  3f:	6b                   	.byte 0x6b