general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 0 PID: 298 Comm: syz-executor357 Not tainted 5.10.234-syzkaller-00023-g3f5f2283d684 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:traverse_mounts fs/namei.c:1357 [inline]
RIP: 0010:handle_mounts fs/namei.c:1477 [inline]
RIP: 0010:step_into+0x1b9/0xec0 fs/namei.c:1782
Code: 24 0f 85 cf 0a 00 00 44 8b 3a 43 80 3c 2c 00 74 0a 48 8b 7c 24 18 e8 c6 93 f3 ff 48 8b 9c 24 b8 00 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 c1 0a 00 00 8b 1b 89 de 81 e6 00 00 07
RSP: 0018:ffffc90000bb77e0 EFLAGS: 00010203
RAX: 0000000000000001 RBX: 000000000000000f RCX: ffff88810d0a93c0
RDX: ffffc90000bb7bf8 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000bb7910 R08: ffffffff81b4ca8f R09: ffffed1024205f65
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000176f13
R13: dffffc0000000000 R14: ffffc90000bb7bc0 R15: 0000000000000010
FS:  00007fdc36bb16c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdc36bb1d58 CR3: 000000011a602000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 walk_component+0x359/0x610 fs/namei.c:1958
 link_path_walk+0x5c7/0xbd0
 path_parentat fs/namei.c:2479 [inline]
 filename_parentat+0x264/0x670 fs/namei.c:2501
 filename_create+0xf7/0x750 fs/namei.c:3590
 user_path_create fs/namei.c:3665 [inline]
 do_mkdirat+0xcc/0x2c0 fs/namei.c:3805
 __do_sys_mkdir fs/namei.c:3828 [inline]
 __se_sys_mkdir fs/namei.c:3826 [inline]
 __x64_sys_mkdir+0x60/0x70 fs/namei.c:3826
 do_syscall_64+0x34/0x70
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fdc36c12687
Code: ff ff 77 07 31 c0 c3 0f 1f 40 00 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fdc36bb10f8 EFLAGS: 00000206 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 00007fdc36c9d3f8 RCX: 00007fdc36c12687
RDX: 00000000000f4240 RSI: 00000000000001ff RDI: 0000400000000200
RBP: 0000400000000200 R08: 0000000000000000 R09: 0000000000000000
R10: 00007ffc694f62a7 R11: 0000000000000206 R12: 0000000000000001
R13: 000040000000c280 R14: 00007ffc694f61c0 R15: 00007ffc694f62a8
Modules linked in:
---[ end trace 312f618c49864899 ]---
RIP: 0010:traverse_mounts fs/namei.c:1357 [inline]
RIP: 0010:handle_mounts fs/namei.c:1477 [inline]
RIP: 0010:step_into+0x1b9/0xec0 fs/namei.c:1782
Code: 24 0f 85 cf 0a 00 00 44 8b 3a 43 80 3c 2c 00 74 0a 48 8b 7c 24 18 e8 c6 93 f3 ff 48 8b 9c 24 b8 00 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 c1 0a 00 00 8b 1b 89 de 81 e6 00 00 07
RSP: 0018:ffffc90000bb77e0 EFLAGS: 00010203
RAX: 0000000000000001 RBX: 000000000000000f RCX: ffff88810d0a93c0
RDX: ffffc90000bb7bf8 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000bb7910 R08: ffffffff81b4ca8f R09: ffffed1024205f65
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000176f13
R13: dffffc0000000000 R14: ffffc90000bb7bc0 R15: 0000000000000010
FS:  00007fdc36bb16c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdc36bb1d58 CR3: 000000011a602000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	24 0f                	and    $0xf,%al
   2:	85 cf                	test   %ecx,%edi
   4:	0a 00                	or     (%rax),%al
   6:	00 44 8b 3a          	add    %al,0x3a(%rbx,%rcx,4)
   a:	43 80 3c 2c 00       	cmpb   $0x0,(%r12,%r13,1)
   f:	74 0a                	je     0x1b
  11:	48 8b 7c 24 18       	mov    0x18(%rsp),%rdi
  16:	e8 c6 93 f3 ff       	call   0xfff393e1
  1b:	48 8b 9c 24 b8 00 00 	mov    0xb8(%rsp),%rbx
  22:	00
  23:	48 89 d8             	mov    %rbx,%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 c1 0a 00 00    	jne    0xaf8
  37:	8b 1b                	mov    (%rbx),%ebx
  39:	89 de                	mov    %ebx,%esi
  3b:	81                   	.byte 0x81
  3c:	e6 00                	out    %al,$0x0
  3e:	00 07                	add    %al,(%rdi)