================================================================================
UBSAN: array-index-out-of-bounds in fs/reiserfs/item_ops.c:485:3
index 1 is out of range for type '__u16[1]' (aka 'unsigned short[1]')
CPU: 0 PID: 4581 Comm: syz-executor.3 Not tainted 6.5.0-rc7-syzkaller-00013-g53663f4103ff #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
 ubsan_epilogue lib/ubsan.c:217 [inline]
 __ubsan_handle_out_of_bounds+0x11c/0x150 lib/ubsan.c:348
 direntry_create_vi+0x7a9/0xf50 fs/reiserfs/item_ops.c:485
 create_virtual_node+0xa16/0x1bf0 fs/reiserfs/fix_node.c:115
 ip_check_balance fs/reiserfs/fix_node.c:1412 [inline]
 check_balance fs/reiserfs/fix_node.c:2083 [inline]
 fix_nodes+0x1fa8/0x8ce0 fs/reiserfs/fix_node.c:2635
 reiserfs_insert_item+0x9e8/0xc30 fs/reiserfs/stree.c:2238
 indirect2direct+0x699/0xc00 fs/reiserfs/tail_conversion.c:283
 maybe_indirect_to_direct fs/reiserfs/stree.c:1585 [inline]
 reiserfs_cut_from_item+0xba6/0x2580 fs/reiserfs/stree.c:1692
 reiserfs_do_truncate+0xa16/0x15c0 fs/reiserfs/stree.c:1971
 reiserfs_truncate_file+0x4da/0x820 fs/reiserfs/inode.c:2308
 reiserfs_setattr+0xbc9/0x1140 fs/reiserfs/inode.c:3394
 notify_change+0xc8b/0xf40 fs/attr.c:483
 do_truncate+0x220/0x300 fs/open.c:66
 do_sys_ftruncate+0x2f3/0x390 fs/open.c:194
 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: 0033:0x7fddd3e7cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fddd4c190c8 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
RAX: ffffffffffffffda RBX: 00007fddd3f9c050 RCX: 00007fddd3e7cae9
RDX: 0000000000000000 RSI: 0000000000000e5c RDI: 0000000000000004
RBP: 00007fddd3ec847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fddd3f9c050 R15: 00007ffcd37b06e8
 </TASK>
================================================================================