general protection fault, probably for non-canonical address 0xdffffc0000000827: 0000 [#1] PREEMPT SMP KASAN
KASAN: probably user-memory-access in range [0x0000000000004138-0x000000000000413f]
CPU: 1 PID: 5260 Comm: syz-executor.2 Not tainted 6.3.0-rc7-syzkaller-00060-g789b4a41c247 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023
RIP: 0010:d_really_is_negative include/linux/dcache.h:466 [inline]
RIP: 0010:open_xa_root fs/reiserfs/xattr.c:124 [inline]
RIP: 0010:open_xa_dir+0x105/0x610 fs/reiserfs/xattr.c:152
Code: 05 00 00 49 03 1e 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 f9 a6 b0 ff 4c 8b 3b 49 83 c7 68 4c 89 fb 48 c1 eb 03 <42> 80 3c 23 00 74 08 4c 89 ff e8 dc a6 b0 ff 49 8b 3f 48 85 ff 0f
RSP: 0018:ffffc9000b5af500 EFLAGS: 00010206
RAX: 1ffff11005b6f4b3 RBX: 0000000000000827 RCX: 0000000000000000
RDX: 0000000000000011 RSI: 0000000000000000 RDI: ffffc9000b5af571
RBP: ffffc9000b5af5f8 R08: dffffc0000000000 R09: ffffc9000b5af560
R10: ffffffffffffffff R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff110060368cf R14: ffff8880301b4678 R15: 000000000000413a
FS:  00007f29ad721700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe511645e8 CR3: 000000002b616000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 xattr_lookup+0x24/0x280 fs/reiserfs/xattr.c:395
 reiserfs_xattr_get+0xfd/0x570 fs/reiserfs/xattr.c:677
 reiserfs_get_acl+0x7e/0x650 fs/reiserfs/xattr_acl.c:215
 __get_acl+0x288/0x470 fs/posix_acl.c:160
 check_acl+0x3a/0x150 fs/namei.c:307
 acl_permission_check fs/namei.c:352 [inline]
 generic_permission+0x362/0x550 fs/namei.c:405
 do_inode_permission fs/namei.c:459 [inline]
 inode_permission+0x233/0x460 fs/namei.c:526
 may_open+0x2d6/0x440 fs/namei.c:3188
 do_open fs/namei.c:3558 [inline]
 path_openat+0x2652/0x3170 fs/namei.c:3715
 do_filp_open+0x234/0x490 fs/namei.c:3742
 do_sys_openat2+0x13f/0x500 fs/open.c:1348
 do_sys_open fs/open.c:1364 [inline]
 __do_sys_openat fs/open.c:1380 [inline]
 __se_sys_openat fs/open.c:1375 [inline]
 __x64_sys_openat+0x247/0x290 fs/open.c:1375
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f29aca3e2f4
Code: 84 00 00 00 00 00 44 89 54 24 0c e8 96 f9 ff ff 44 8b 54 24 0c 44 89 e2 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 89 44 24 0c e8 c8 f9 ff ff 8b 44
RSP: 002b:00007f29ad720f10 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00000000000005d8 RCX: 00007f29aca3e2f4
RDX: 0000000000010000 RSI: 00000000200005c0 RDI: 00000000ffffff9c
RBP: 00000000200005c0 R08: 0000000000000000 R09: 0000000001008002
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000010000
R13: 00000000200005c0 R14: 00007f29ad720fe0 R15: 00000000200000c0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:d_really_is_negative include/linux/dcache.h:466 [inline]
RIP: 0010:open_xa_root fs/reiserfs/xattr.c:124 [inline]
RIP: 0010:open_xa_dir+0x105/0x610 fs/reiserfs/xattr.c:152
Code: 05 00 00 49 03 1e 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 f9 a6 b0 ff 4c 8b 3b 49 83 c7 68 4c 89 fb 48 c1 eb 03 <42> 80 3c 23 00 74 08 4c 89 ff e8 dc a6 b0 ff 49 8b 3f 48 85 ff 0f
RSP: 0018:ffffc9000b5af500 EFLAGS: 00010206
RAX: 1ffff11005b6f4b3 RBX: 0000000000000827 RCX: 0000000000000000
RDX: 0000000000000011 RSI: 0000000000000000 RDI: ffffc9000b5af571
RBP: ffffc9000b5af5f8 R08: dffffc0000000000 R09: ffffc9000b5af560
R10: ffffffffffffffff R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff110060368cf R14: ffff8880301b4678 R15: 000000000000413a
FS:  00007f29ad721700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555676e848 CR3: 000000002b616000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	00 00                	add    %al,(%rax)
   2:	49 03 1e             	add    (%r14),%rbx
   5:	48 89 d8             	mov    %rbx,%rax
   8:	48 c1 e8 03          	shr    $0x3,%rax
   c:	42 80 3c 20 00       	cmpb   $0x0,(%rax,%r12,1)
  11:	74 08                	je     0x1b
  13:	48 89 df             	mov    %rbx,%rdi
  16:	e8 f9 a6 b0 ff       	callq  0xffb0a714
  1b:	4c 8b 3b             	mov    (%rbx),%r15
  1e:	49 83 c7 68          	add    $0x68,%r15
  22:	4c 89 fb             	mov    %r15,%rbx
  25:	48 c1 eb 03          	shr    $0x3,%rbx
* 29:	42 80 3c 23 00       	cmpb   $0x0,(%rbx,%r12,1) <-- trapping instruction
  2e:	74 08                	je     0x38
  30:	4c 89 ff             	mov    %r15,%rdi
  33:	e8 dc a6 b0 ff       	callq  0xffb0a714
  38:	49 8b 3f             	mov    (%r15),%rdi
  3b:	48 85 ff             	test   %rdi,%rdi
  3e:	0f                   	.byte 0xf