Oops: general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]
CPU: 0 UID: 0 PID: 491 Comm: syz.2.17 Not tainted syzkaller #0 9a077ad61207b204f3e54e8aa22fe650e62d66fb
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:__d_entry_type include/linux/dcache.h:414 [inline]
RIP: 0010:d_is_miss include/linux/dcache.h:419 [inline]
RIP: 0010:d_is_negative include/linux/dcache.h:465 [inline]
RIP: 0010:d_is_positive include/linux/dcache.h:475 [inline]
RIP: 0010:security_path_rename+0x95/0x2a0 security/security.c:2021
Code: 00 44 8b 2b 44 89 ee 81 e6 00 02 00 00 31 db 31 ff e8 ff 8b 15 ff 41 81 e5 00 02 00 00 0f 85 cd 00 00 00 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 e4 00 00 00 41 8b 1e 89 de 81 e6 00 00
RSP: 0018:ffffc90000ecfcf0 EFLAGS: 00010202
RAX: 0000000000000002 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88811e36df00 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000ecfd30 R08: 0000000000000000 R09: 1ffff1103edca178
R10: dffffc0000000000 R11: ffffed103edca179 R12: ffff88811377ddd0
R13: 0000000000000000 R14: 0000000000000010 R15: dffffc0000000000
FS:  00007f14534766c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1453476d58 CR3: 000000011dd42000 CR4: 00000000003526b0
Call Trace:
 <TASK>
 do_renameat2+0x634/0xc40 fs/namei.c:5165
 __do_sys_rename fs/namei.c:5225 [inline]
 __se_sys_rename fs/namei.c:5223 [inline]
 __x64_sys_rename+0x86/0xa0 fs/namei.c:5223
 x64_sys_call+0x150b/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:83
 do_syscall_x64 arch/x86/entry/common.c:47 [inline]
 do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f145259aeb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1453476028 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007f1452816180 RCX: 00007f145259aeb9
RDX: 0000000000000000 RSI: 0000200000000140 RDI: 0000200000000100
RBP: 00007f1452608c1f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f1452816218 R14: 00007f1452816180 R15: 00007ffd2ee37fa8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__d_entry_type include/linux/dcache.h:414 [inline]
RIP: 0010:d_is_miss include/linux/dcache.h:419 [inline]
RIP: 0010:d_is_negative include/linux/dcache.h:465 [inline]
RIP: 0010:d_is_positive include/linux/dcache.h:475 [inline]
RIP: 0010:security_path_rename+0x95/0x2a0 security/security.c:2021
Code: 00 44 8b 2b 44 89 ee 81 e6 00 02 00 00 31 db 31 ff e8 ff 8b 15 ff 41 81 e5 00 02 00 00 0f 85 cd 00 00 00 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 e4 00 00 00 41 8b 1e 89 de 81 e6 00 00
RSP: 0018:ffffc90000ecfcf0 EFLAGS: 00010202

RAX: 0000000000000002 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88811e36df00 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000ecfd30 R08: 0000000000000000 R09: 1ffff1103edca178
R10: dffffc0000000000 R11: ffffed103edca179 R12: ffff88811377ddd0
R13: 0000000000000000 R14: 0000000000000010 R15: dffffc0000000000
FS:  00007f14534766c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1453476d58 CR3: 000000011dd42000 CR4: 00000000003526b0
----------------
Code disassembly (best guess):
   0:	00 44 8b 2b          	add    %al,0x2b(%rbx,%rcx,4)
   4:	44 89 ee             	mov    %r13d,%esi
   7:	81 e6 00 02 00 00    	and    $0x200,%esi
   d:	31 db                	xor    %ebx,%ebx
   f:	31 ff                	xor    %edi,%edi
  11:	e8 ff 8b 15 ff       	call   0xff158c15
  16:	41 81 e5 00 02 00 00 	and    $0x200,%r13d
  1d:	0f 85 cd 00 00 00    	jne    0xf0
  23:	4c 89 f0             	mov    %r14,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 0f b6 04 38       	movzbl (%rax,%r15,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	0f 85 e4 00 00 00    	jne    0x11b
  37:	41 8b 1e             	mov    (%r14),%ebx
  3a:	89 de                	mov    %ebx,%esi
  3c:	81                   	.byte 0x81
  3d:	e6 00                	out    %al,$0x0