general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 1 PID: 16878 Comm: syz.8.5663 Tainted: G        W          syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:traverse_mounts fs/namei.c:1430 [inline]
RIP: 0010:handle_mounts fs/namei.c:1542 [inline]
RIP: 0010:step_into+0x11d/0xf30 fs/namei.c:1835
Code: 74 24 08 c6 44 24 7f 00 43 0f b6 04 3c 84 c0 4d 89 fd 0f 85 08 0c 00 00 45 8b 36 4c 8b bc 24 a8 00 00 00 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 07 0c 00 00 45 8b 3f 44 89 fe 81 e6 00
RSP: 0018:ffffc90005caf8a0 EFLAGS: 00010202
RAX: 0000000000000001 RBX: ffffc90005cafae0 RCX: 0000000000080000
RDX: ffffc900093d2000 RSI: 000000000000016e RDI: 000000000000016f
RBP: ffffc90005caf9b8 R08: dffffc0000000000 R09: ffffed1027238bcd
R10: ffffed1027238bcd R11: 1ffff11027238bcc R12: 1ffff92000b95f63
R13: dffffc0000000000 R14: 0000000000004005 R15: 0000000000000008
FS:  00007f5a9277e6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5a9275cf98 CR3: 000000012eb7e000 CR4: 00000000003526a0
Call Trace:
 <TASK>
 walk_component+0x24c/0x420 fs/namei.c:2003
 lookup_last fs/namei.c:2454 [inline]
 path_lookupat+0x180/0x490 fs/namei.c:2478
 filename_lookup+0x1f0/0x500 fs/namei.c:2507
 vfs_statx+0x10b/0x660 fs/stat.c:229
 do_statx fs/stat.c:643 [inline]
 __do_sys_statx fs/stat.c:670 [inline]
 __se_sys_statx fs/stat.c:661 [inline]
 __x64_sys_statx+0x1c2/0x250 fs/stat.c:661
 x64_sys_call+0x602/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:333
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f5a9198efc9
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:00007f5a9277e038 EFLAGS: 00000246 ORIG_RAX: 000000000000014c
RAX: ffffffffffffffda RBX: 00007f5a91be5fa0 RCX: 00007f5a9198efc9
RDX: 0000000000001000 RSI: 0000200000000640 RDI: ffffffffffffff9c
RBP: 00007f5a91a11f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5a91be6038 R14: 00007f5a91be5fa0 R15: 00007ffe86895448
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:traverse_mounts fs/namei.c:1430 [inline]
RIP: 0010:handle_mounts fs/namei.c:1542 [inline]
RIP: 0010:step_into+0x11d/0xf30 fs/namei.c:1835
Code: 74 24 08 c6 44 24 7f 00 43 0f b6 04 3c 84 c0 4d 89 fd 0f 85 08 0c 00 00 45 8b 36 4c 8b bc 24 a8 00 00 00 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 07 0c 00 00 45 8b 3f 44 89 fe 81 e6 00
RSP: 0018:ffffc90005caf8a0 EFLAGS: 00010202

RAX: 0000000000000001 RBX: ffffc90005cafae0 RCX: 0000000000080000
RDX: ffffc900093d2000 RSI: 000000000000016e RDI: 000000000000016f
RBP: ffffc90005caf9b8 R08: dffffc0000000000 R09: ffffed1027238bcd
R10: ffffed1027238bcd R11: 1ffff11027238bcc R12: 1ffff92000b95f63
R13: dffffc0000000000 R14: 0000000000004005 R15: 0000000000000008
FS:  00007f5a9277e6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000000a000 CR3: 000000012eb7e000 CR4: 00000000003526a0
----------------
Code disassembly (best guess):
   0:	74 24                	je     0x26
   2:	08 c6                	or     %al,%dh
   4:	44 24 7f             	rex.R and $0x7f,%al
   7:	00 43 0f             	add    %al,0xf(%rbx)
   a:	b6 04                	mov    $0x4,%dh
   c:	3c 84                	cmp    $0x84,%al
   e:	c0 4d 89 fd          	rorb   $0xfd,-0x77(%rbp)
  12:	0f 85 08 0c 00 00    	jne    0xc20
  18:	45 8b 36             	mov    (%r14),%r14d
  1b:	4c 8b bc 24 a8 00 00 	mov    0xa8(%rsp),%r15
  22:	00
  23:	4c 89 f8             	mov    %r15,%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 07 0c 00 00    	jne    0xc3e
  37:	45 8b 3f             	mov    (%r15),%r15d
  3a:	44 89 fe             	mov    %r15d,%esi
  3d:	81                   	.byte 0x81
  3e:	e6 00                	out    %al,$0x0