REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
REISERFS (device loop3): checking transaction log (loop3)
REISERFS (device loop3): Using tea hash to sort names
==================================================================
BUG: KASAN: out-of-bounds in leaf_paste_entries+0x698/0xb10 fs/reiserfs/lbalance.c:1377
Read of size 18446744073709551600 at addr ffff00017d2b2f94 by task syz-executor.3/14652

CPU: 0 PID: 14652 Comm: syz-executor.3 Not tainted 6.5.0-rc7-syzkaller-gfe4469582053 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
Call trace:
 dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:233
 show_stack+0x2c/0x44 arch/arm64/kernel/stacktrace.c:240
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:364 [inline]
 print_report+0x174/0x514 mm/kasan/report.c:475
 kasan_report+0xd8/0x138 mm/kasan/report.c:588
 kasan_check_range+0x254/0x294 mm/kasan/generic.c:187
 __asan_memmove+0x3c/0x84 mm/kasan/shadow.c:94
 leaf_paste_entries+0x698/0xb10 fs/reiserfs/lbalance.c:1377
 balance_leaf_finish_node_paste_dirent fs/reiserfs/do_balan.c:1295 [inline]
 balance_leaf_finish_node_paste fs/reiserfs/do_balan.c:1321 [inline]
 balance_leaf_finish_node fs/reiserfs/do_balan.c:1364 [inline]
 balance_leaf+0xa0d4/0xe860 fs/reiserfs/do_balan.c:1452
 do_balance+0x27c/0x788 fs/reiserfs/do_balan.c:1888
 reiserfs_paste_into_item+0x630/0x744 fs/reiserfs/stree.c:2157
 reiserfs_add_entry+0x8ec/0xcc4 fs/reiserfs/namei.c:565
 reiserfs_mkdir+0x588/0x77c fs/reiserfs/namei.c:860
 xattr_mkdir fs/reiserfs/xattr.c:77 [inline]
 create_privroot fs/reiserfs/xattr.c:890 [inline]
 reiserfs_xattr_init+0x2b4/0x638 fs/reiserfs/xattr.c:1006
 reiserfs_fill_super+0x1bfc/0x2028 fs/reiserfs/super.c:2175
 mount_bdev+0x24c/0x328 fs/super.c:1391
 get_super_block+0x44/0x58 fs/reiserfs/super.c:2601
 legacy_get_tree+0xd4/0x16c fs/fs_context.c:611
 vfs_get_tree+0x90/0x274 fs/super.c:1519
 do_new_mount+0x25c/0x8c8 fs/namespace.c:3335
 path_mount+0x590/0xe04 fs/namespace.c:3662
 do_mount fs/namespace.c:3675 [inline]
 __do_sys_mount fs/namespace.c:3884 [inline]
 __se_sys_mount fs/namespace.c:3861 [inline]
 __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3861
 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155
 el0_svc+0x58/0x16c arch/arm64/kernel/entry-common.c:678
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591

The buggy address belongs to the physical page:
page:00000000ec63d27d refcount:2 mapcount:0 mapping:0000000075f9e583 index:0x213 pfn:0x1bd2b2
memcg:ffff0000dba02000
aops:def_blk_aops ino:700003
flags: 0x5ffc00000002032(referenced|lru|active|private|node=0|zone=2|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 05ffc00000002032 fffffc0005f952c8 ffff0000de4c6030 ffff0000c1495918
raw: 0000000000000213 ffff000135ab82b8 00000002ffffffff ffff0000dba02000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff00017d2b2e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff00017d2b2f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff00017d2b2f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                         ^
 ffff00017d2b3000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff00017d2b3080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================
REISERFS warning (device loop3): vs-13060 reiserfs_update_sd_size: stat data of object [1 2 0x0 SD] (nlink == 1) not found (pos 2)
REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage.