general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 PID: 19006 Comm: syz-executor.1 Not tainted 6.1.68-syzkaller-00023-g92432f07d663 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
RIP: 0010:__d_entry_type include/linux/dcache.h:394 [inline]
RIP: 0010:d_is_miss include/linux/dcache.h:399 [inline]
RIP: 0010:d_is_negative include/linux/dcache.h:445 [inline]
RIP: 0010:do_renameat2+0x62e/0x1480 fs/namei.c:4884
Code: 08 9c ac ff 41 89 de 4c 8b 64 24 40 e9 0f 06 00 00 4c 89 b4 24 f0 00 00 00 49 89 de 49 c1 ee 03 48 b8 00 00 00 00 00 fc ff df <41> 0f b6 04 06 84 c0 4c 8b 64 24 40 0f 85 2d 08 00 00 48 89 1c 24
RSP: 0018:ffffc9000c577c40 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000040000
RDX: ffffc900034d4000 RSI: 0000000000000301 RDI: 0000000000000302
RBP: ffffc9000c577ef8 R08: ffffffff81caef3b R09: fffff520018aef67
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff888164c86ee0 R14: 0000000000000000 R15: ffff8881478451a0
FS:  00007fd4913796c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd491399fa8 CR3: 000000013b588000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __do_sys_rename fs/namei.c:4981 [inline]
 __se_sys_rename fs/namei.c:4979 [inline]
 __x64_sys_rename+0x86/0x90 fs/namei.c:4979
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd49067dda9
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:00007fd4913790c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007fd4907ac050 RCX: 00007fd49067dda9
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000020000100
RBP: 00007fd4906ca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fd4907ac050 R15: 00007ffc4b3205a8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__d_entry_type include/linux/dcache.h:394 [inline]
RIP: 0010:d_is_miss include/linux/dcache.h:399 [inline]
RIP: 0010:d_is_negative include/linux/dcache.h:445 [inline]
RIP: 0010:do_renameat2+0x62e/0x1480 fs/namei.c:4884
Code: 08 9c ac ff 41 89 de 4c 8b 64 24 40 e9 0f 06 00 00 4c 89 b4 24 f0 00 00 00 49 89 de 49 c1 ee 03 48 b8 00 00 00 00 00 fc ff df <41> 0f b6 04 06 84 c0 4c 8b 64 24 40 0f 85 2d 08 00 00 48 89 1c 24
RSP: 0018:ffffc9000c577c40 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000040000
RDX: ffffc900034d4000 RSI: 0000000000000301 RDI: 0000000000000302
RBP: ffffc9000c577ef8 R08: ffffffff81caef3b R09: fffff520018aef67
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff888164c86ee0 R14: 0000000000000000 R15: ffff8881478451a0
FS:  00007fd4913796c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd491379d58 CR3: 000000013b588000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	08 9c ac ff 41 89 de 	or     %bl,-0x2176be01(%rsp,%rbp,4)
   7:	4c 8b 64 24 40       	mov    0x40(%rsp),%r12
   c:	e9 0f 06 00 00       	jmp    0x620
  11:	4c 89 b4 24 f0 00 00 	mov    %r14,0xf0(%rsp)
  18:	00
  19:	49 89 de             	mov    %rbx,%r14
  1c:	49 c1 ee 03          	shr    $0x3,%r14
  20:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  27:	fc ff df
* 2a:	41 0f b6 04 06       	movzbl (%r14,%rax,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	4c 8b 64 24 40       	mov    0x40(%rsp),%r12
  36:	0f 85 2d 08 00 00    	jne    0x869
  3c:	48 89 1c 24          	mov    %rbx,(%rsp)