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: 304 Comm: syz-executor414 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:traverse_mounts fs/namei.c:1386 [inline]
RIP: 0010:handle_mounts fs/namei.c:1506 [inline]
RIP: 0010:step_into+0x122/0xce0 fs/namei.c:1814
Code: 24 10 4c 8d 73 38 c6 44 24 5f 00 43 0f b6 04 2c 84 c0 0f 85 57 0a 00 00 45 8b 36 4c 8b bc 24 88 00 00 00 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 56 0a 00 00 45 8b 3f 44 89 fe 81 e6 00
RSP: 0018:ffffc900009a78c0 EFLAGS: 00010203
RAX: 0000000000000001 RBX: ffffc900009a7ac0 RCX: ffff88810b40a800
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900009a79a8 R08: 0000000000000000 R09: 1ffff110244d01c4
R10: dffffc0000000000 R11: ffffed10244d01c5 R12: 1ffff92000134f5f
R13: dffffc0000000000 R14: 0000000000004005 R15: 000000000000000f
FS:  00007fdea8c416c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000000a000 CR3: 000000012540b000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 walk_component+0x263/0x460 fs/namei.c:1990
 lookup_last fs/namei.c:2439 [inline]
 path_lookupat+0x155/0x430 fs/namei.c:2463
 filename_lookup+0x21e/0x550 fs/namei.c:2492
 user_path_at_empty+0x46/0x1c0 fs/namei.c:2891
 user_path_at include/linux/namei.h:57 [inline]
 vfs_statx+0x109/0xa20 fs/stat.c:221
 do_statx fs/stat.c:615 [inline]
 __do_sys_statx fs/stat.c:638 [inline]
 __se_sys_statx fs/stat.c:633 [inline]
 __x64_sys_statx+0x1ba/0x260 fs/stat.c:633
 x64_sys_call+0x610/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:333
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fdea8c5ff39
Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 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 d0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fdea8c41218 EFLAGS: 00000246 ORIG_RAX: 000000000000014c
RAX: ffffffffffffffda RBX: 00007fdea8d10b68 RCX: 00007fdea8c5ff39
RDX: 0000000000001000 RSI: 0000200000000640 RDI: 00000000ffffff9c
RBP: 00007fdea8d10b60 R08: 0000000000000000 R09: 33203a6b63617473
R10: 0000000000000100 R11: 0000000000000246 R12: 00007fdea8cde424
R13: 0000200000008200 R14: 00002000000020c0 R15: 00007fdea8cda03a
 </TASK>
Modules linked in:
---[ end trace 365f97c73b6779da ]---
RIP: 0010:traverse_mounts fs/namei.c:1386 [inline]
RIP: 0010:handle_mounts fs/namei.c:1506 [inline]
RIP: 0010:step_into+0x122/0xce0 fs/namei.c:1814
Code: 24 10 4c 8d 73 38 c6 44 24 5f 00 43 0f b6 04 2c 84 c0 0f 85 57 0a 00 00 45 8b 36 4c 8b bc 24 88 00 00 00 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 56 0a 00 00 45 8b 3f 44 89 fe 81 e6 00
RSP: 0018:ffffc900009a78c0 EFLAGS: 00010203
RAX: 0000000000000001 RBX: ffffc900009a7ac0 RCX: ffff88810b40a800
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900009a79a8 R08: 0000000000000000 R09: 1ffff110244d01c4
R10: dffffc0000000000 R11: ffffed10244d01c5 R12: 1ffff92000134f5f
R13: dffffc0000000000 R14: 0000000000004005 R15: 000000000000000f
FS:  00007fdea8c416c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000000a000 CR3: 000000012540b000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	24 10                	and    $0x10,%al
   2:	4c 8d 73 38          	lea    0x38(%rbx),%r14
   6:	c6 44 24 5f 00       	movb   $0x0,0x5f(%rsp)
   b:	43 0f b6 04 2c       	movzbl (%r12,%r13,1),%eax
  10:	84 c0                	test   %al,%al
  12:	0f 85 57 0a 00 00    	jne    0xa6f
  18:	45 8b 36             	mov    (%r14),%r14d
  1b:	4c 8b bc 24 88 00 00 	mov    0x88(%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 56 0a 00 00    	jne    0xa8d
  37:	45 8b 3f             	mov    (%r15),%r15d
  3a:	44 89 fe             	mov    %r15d,%esi
  3d:	81                   	.byte 0x81
  3e:	e6 00                	out    %al,$0x0