general protection fault, probably for non-canonical address 0xdffffc0000000008: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000040-0x0000000000000047]
CPU: 0 PID: 328 Comm: syz-executor.0 Not tainted 5.10.237-syzkaller-1007474-gcf6ed0f1511d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:vfs_rename+0x106/0xef0 fs/namei.c:4371
Code: c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 b2 f8 f4 ff 48 8b 03 48 89 44 24 50 4c 89 74 24 40 4d 8d 6e 30 4c 89 eb 48 c1 eb 03 <42> 80 3c 3b 00 74 08 4c 89 ef e8 8b f8 f4 ff 49 8b 55 00 4c 89 64
RSP: 0018:ffffc90000d87c20 EFLAGS: 00010202
RAX: ffff888121c1db00 RBX: 0000000000000008 RCX: 0000000000000000
RDX: ffff88810bbfe2c0 RSI: 0000000000400000 RDI: 0000000000200000
RBP: ffffc90000d87d70 R08: ffffc90000d87e30 R09: 0000000000000000
R10: ffffed10238f3d1c R11: 1ffff110238f3d1b R12: ffff888121c1cd80
R13: 0000000000000040 R14: 0000000000000010 R15: dffffc0000000000
FS:  00007f17734c56c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1773483d58 CR3: 000000010d120000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 do_renameat2+0x6f8/0xe60 fs/namei.c:4619
 __do_sys_rename fs/namei.c:4670 [inline]
 __se_sys_rename fs/namei.c:4668 [inline]
 __x64_sys_rename+0x86/0x90 fs/namei.c:4668
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f1773942ae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f17734c50c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007f1773a61f80 RCX: 00007f1773942ae9
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000020000100
RBP: 00007f177398e47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f1773a61f80 R15: 00007ffca599be98
Modules linked in:
---[ end trace f3dae1e7ba3662b2 ]---
RIP: 0010:vfs_rename+0x106/0xef0 fs/namei.c:4371
Code: c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 b2 f8 f4 ff 48 8b 03 48 89 44 24 50 4c 89 74 24 40 4d 8d 6e 30 4c 89 eb 48 c1 eb 03 <42> 80 3c 3b 00 74 08 4c 89 ef e8 8b f8 f4 ff 49 8b 55 00 4c 89 64
RSP: 0018:ffffc90000d87c20 EFLAGS: 00010202

RAX: ffff888121c1db00 RBX: 0000000000000008 RCX: 0000000000000000
RDX: ffff88810bbfe2c0 RSI: 0000000000400000 RDI: 0000000000200000
RBP: ffffc90000d87d70 R08: ffffc90000d87e30 R09: 0000000000000000
R10: ffffed10238f3d1c R11: 1ffff110238f3d1b R12: ffff888121c1cd80
R13: 0000000000000040 R14: 0000000000000010 R15: dffffc0000000000
FS:  00007f17734c56c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020007000 CR3: 000000010d120000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	c1 e8 03             	shr    $0x3,%eax
   3:	42 80 3c 38 00       	cmpb   $0x0,(%rax,%r15,1)
   8:	74 08                	je     0x12
   a:	48 89 df             	mov    %rbx,%rdi
   d:	e8 b2 f8 f4 ff       	call   0xfff4f8c4
  12:	48 8b 03             	mov    (%rbx),%rax
  15:	48 89 44 24 50       	mov    %rax,0x50(%rsp)
  1a:	4c 89 74 24 40       	mov    %r14,0x40(%rsp)
  1f:	4d 8d 6e 30          	lea    0x30(%r14),%r13
  23:	4c 89 eb             	mov    %r13,%rbx
  26:	48 c1 eb 03          	shr    $0x3,%rbx
* 2a:	42 80 3c 3b 00       	cmpb   $0x0,(%rbx,%r15,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	4c 89 ef             	mov    %r13,%rdi
  34:	e8 8b f8 f4 ff       	call   0xfff4f8c4
  39:	49 8b 55 00          	mov    0x0(%r13),%rdx
  3d:	4c                   	rex.WR
  3e:	89                   	.byte 0x89
  3f:	64                   	fs