REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are!
REISERFS (device loop2): Using r5 hash to sort names
REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are!
==================================================================
BUG: KASAN: out-of-bounds in memmove include/linux/string.h:392 [inline]
BUG: KASAN: out-of-bounds in leaf_paste_entries+0x449/0x910 fs/reiserfs/lbalance.c:1378
Read of size 18446744073709551584 at addr ffff88804a0b9fa4 by task syz-executor.0/26751

CPU: 1 PID: 26751 Comm: syz-executor.0 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 print_address_description.cold+0x54/0x219 mm/kasan/report.c:256
 kasan_report_error.cold+0x8a/0x1b9 mm/kasan/report.c:354
 kasan_report+0x8f/0xa0 mm/kasan/report.c:412
 memmove+0x20/0x50 mm/kasan/kasan.c:293
 memmove include/linux/string.h:392 [inline]
 leaf_paste_entries+0x449/0x910 fs/reiserfs/lbalance.c:1378
 balance_leaf_finish_node_paste_dirent fs/reiserfs/do_balan.c:1306 [inline]
 balance_leaf_finish_node_paste fs/reiserfs/do_balan.c:1332 [inline]
 balance_leaf_finish_node fs/reiserfs/do_balan.c:1375 [inline]
 balance_leaf+0x8fd7/0xca70 fs/reiserfs/do_balan.c:1463
 do_balance+0x30a/0x760 fs/reiserfs/do_balan.c:1899
 reiserfs_paste_into_item+0x636/0x7d0 fs/reiserfs/stree.c:2169
 reiserfs_add_entry+0x89a/0xcc0 fs/reiserfs/namei.c:566
 reiserfs_mkdir+0x66e/0x980 fs/reiserfs/namei.c:858
 create_privroot fs/reiserfs/xattr.c:880 [inline]
 reiserfs_xattr_init+0x406/0xae0 fs/reiserfs/xattr.c:1002
 reiserfs_fill_super+0x1f54/0x2d80 fs/reiserfs/super.c:2188
 mount_bdev+0x2fc/0x3b0 fs/super.c:1158
 mount_fs+0xa3/0x310 fs/super.c:1261
 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961
 vfs_kern_mount fs/namespace.c:951 [inline]
 do_new_mount fs/namespace.c:2492 [inline]
 do_mount+0x115c/0x2f50 fs/namespace.c:2822
 ksys_mount+0xcf/0x130 fs/namespace.c:3038
 __do_sys_mount fs/namespace.c:3052 [inline]
 __se_sys_mount fs/namespace.c:3049 [inline]
 __x64_sys_mount+0xba/0x150 fs/namespace.c:3049
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f7dfd5e660a
REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage.
Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7dfbb56f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00000000000010fc RCX: 00007f7dfd5e660a
RDX: 0000000020001100 RSI: 0000000020001140 RDI: 00007f7dfbb56fe0
RBP: 00007f7dfbb57020 R08: 00007f7dfbb57020 R09: 0000000000010080
R10: 0000000000010080 R11: 0000000000000202 R12: 0000000020001100
R13: 0000000020001140 R14: 00007f7dfbb56fe0 R15: 0000000020000340

The buggy address belongs to the page:
page:ffffea0001282e40 count:2 mapcount:0 mapping:ffff8880b1b52aa0 index:0x213
flags: 0xfff00000001064(referenced|lru|active|private)
raw: 00fff00000001064 ffffea00009a6b88 ffffea0000bb14c8 ffff8880b1b52aa0
raw: 0000000000000213 ffff888043fcebd0 00000002ffffffff ffff8880b59f68c0
page dumped because: kasan: bad access detected
page->mem_cgroup:ffff8880b59f68c0

Memory state around the buggy address:
 ffff88804a0b9e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88804a0b9f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88804a0b9f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                               ^
 ffff88804a0ba000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88804a0ba080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal
REISERFS (device loop5): using ordered data mode
reiserfs: using flush barriers
----------------
Code disassembly (best guess):
   0:	48 c7 c2 b8 ff ff ff 	mov    $0xffffffffffffffb8,%rdx
   7:	f7 d8                	neg    %eax
   9:	64 89 02             	mov    %eax,%fs:(%rdx)
   c:	b8 ff ff ff ff       	mov    $0xffffffff,%eax
  11:	eb d2                	jmp    0xffffffe5
  13:	e8 b8 04 00 00       	callq  0x4d0
  18:	0f 1f 84 00 00 00 00 	nopl   0x0(%rax,%rax,1)
  1f:	00
  20:	49 89 ca             	mov    %rcx,%r10
  23:	b8 a5 00 00 00       	mov    $0xa5,%eax
  28:	0f 05                	syscall
* 2a:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax <-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	retq
  33:	48 c7 c1 b8 ff ff ff 	mov    $0xffffffffffffffb8,%rcx
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W