REISERFS (device loop4): checking transaction log (loop4)
REISERFS (device loop4): Using r5 hash to sort names
reiserfs: enabling write barrier flush mode
REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage.
================================================================================
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: 12220 Comm: syz-executor.4 Not tainted 6.5.0-rc7-syzkaller-00087-gb5cc3833f13a #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_paste_into_item+0x654/0x870 fs/reiserfs/stree.c:2128
 reiserfs_get_block+0x2250/0x5130 fs/reiserfs/inode.c:1069
 __block_write_begin_int+0x555/0x1a60 fs/buffer.c:2128
 reiserfs_write_begin+0x24d/0x520 fs/reiserfs/inode.c:2773
 generic_cont_expand_simple+0x18b/0x2a0 fs/buffer.c:2488
 reiserfs_setattr+0x57d/0x1140 fs/reiserfs/inode.c:3304
 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: 0033:0x7f9e1fe7cae9
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:00007f9e20c7c0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
RAX: ffffffffffffffda RBX: 00007f9e1ff9bf80 RCX: 00007f9e1fe7cae9
RDX: 0000000000000000 RSI: 0000000006000000 RDI: 0000000000000005
RBP: 00007f9e1fec847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f9e1ff9bf80 R15: 00007ffc424ccef8
 </TASK>
================================================================================