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: 377 Comm: syz.2.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026
RIP: 0010:do_rmdir+0x1fa/0x6b0 fs/namei.c:4251
Code: ff ff 49 89 c6 48 3d 01 f0 ff ff 72 0d e8 ee 59 ae ff 45 89 f7 e9 94 00 00 00 4c 89 74 24 20 4d 8d 7e 30 4c 89 f8 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 ff e8 77 e4 f3 ff 49 83 3f 00 4c 8b 34
RSP: 0018:ffffc900017f7e20 EFLAGS: 00010203
RAX: 0000000000000008 RBX: 1ffff920002fefcc RCX: ffff8881149f2880
RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffff8881149f2880
RBP: ffffc900017f7ee8 R08: ffffc900017f7d07 R09: 1ffff920002fefa0
R10: dffffc0000000000 R11: fffff520002fefa1 R12: 00000000ffffff9c
R13: dffffc0000000000 R14: 0000000000000014 R15: 0000000000000044
FS:  00007f4f755a56c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001940 CR3: 0000000114c39000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __do_sys_rmdir fs/namei.c:4278 [inline]
 __se_sys_rmdir fs/namei.c:4276 [inline]
 __x64_sys_rmdir+0x49/0x50 fs/namei.c:4276
 x64_sys_call+0x68e/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:85
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f4f7479de99
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:00007f4f755a5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000054
RAX: ffffffffffffffda RBX: 00007f4f74a25fa0 RCX: 00007f4f7479de99
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000040
RBP: 00007f4f74833eaf R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f4f74a26038 R14: 00007f4f74a25fa0 R15: 00007ffca5ddb898
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:do_rmdir+0x1fa/0x6b0 fs/namei.c:4251
Code: ff ff 49 89 c6 48 3d 01 f0 ff ff 72 0d e8 ee 59 ae ff 45 89 f7 e9 94 00 00 00 4c 89 74 24 20 4d 8d 7e 30 4c 89 f8 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 ff e8 77 e4 f3 ff 49 83 3f 00 4c 8b 34
RSP: 0018:ffffc900017f7e20 EFLAGS: 00010203
RAX: 0000000000000008 RBX: 1ffff920002fefcc RCX: ffff8881149f2880
RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffff8881149f2880
RBP: ffffc900017f7ee8 R08: ffffc900017f7d07 R09: 1ffff920002fefa0
R10: dffffc0000000000 R11: fffff520002fefa1 R12: 00000000ffffff9c
R13: dffffc0000000000 R14: 0000000000000014 R15: 0000000000000044
FS:  00007f4f755a56c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001940 CR3: 0000000114c39000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	49 89 c6             	mov    %rax,%r14
   3:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   9:	72 0d                	jb     0x18
   b:	e8 ee 59 ae ff       	call   0xffae59fe
  10:	45 89 f7             	mov    %r14d,%r15d
  13:	e9 94 00 00 00       	jmp    0xac
  18:	4c 89 74 24 20       	mov    %r14,0x20(%rsp)
  1d:	4d 8d 7e 30          	lea    0x30(%r14),%r15
  21:	4c 89 f8             	mov    %r15,%rax
  24:	48 c1 e8 03          	shr    $0x3,%rax
* 28:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1) <-- trapping instruction
  2d:	74 08                	je     0x37
  2f:	4c 89 ff             	mov    %r15,%rdi
  32:	e8 77 e4 f3 ff       	call   0xfff3e4ae
  37:	49 83 3f 00          	cmpq   $0x0,(%r15)
  3b:	4c                   	rex.WR
  3c:	8b                   	.byte 0x8b
  3d:	34                   	.byte 0x34