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UBSAN: array-index-out-of-bounds in fs/reiserfs/item_ops.c:485:21
index 1 is out of range for type '__u16 [1]'
CPU: 0 PID: 5586 Comm: syz-executor.1 Not tainted 6.5.0-syzkaller-00700-g97efd28334e2 #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+0x125/0x1b0 lib/dump_stack.c:106
 ubsan_epilogue lib/ubsan.c:217 [inline]
 __ubsan_handle_out_of_bounds+0x111/0x150 lib/ubsan.c:348
 direntry_create_vi+0x94d/0xa40 fs/reiserfs/item_ops.c:485
 create_virtual_node+0x73d/0x1a40 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+0x4166/0x8a80 fs/reiserfs/fix_node.c:2635
 reiserfs_paste_into_item+0x443/0x7c0 fs/reiserfs/stree.c:2128
 reiserfs_get_block+0x1180/0x47a0 fs/reiserfs/inode.c:1069
 __block_write_begin_int+0x3c0/0x1470 fs/buffer.c:2128
 reiserfs_write_begin+0x351/0xa40 fs/reiserfs/inode.c:2771
 generic_cont_expand_simple+0x11f/0x200 fs/buffer.c:2488
 reiserfs_setattr+0x36d/0x12a0 fs/reiserfs/inode.c:3302
 notify_change+0x742/0x11c0 fs/attr.c:499
 do_truncate+0x15c/0x220 fs/open.c:66
 do_sys_ftruncate+0x6a2/0x790 fs/open.c:194
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f076987c959
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:00007f076a56c0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
RAX: ffffffffffffffda RBX: 00007f076999bf80 RCX: 00007f076987c959
RDX: 0000000000000000 RSI: 0000000002007fff RDI: 0000000000000006
RBP: 00007f07698d8c88 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f076999bf80 R15: 00007ffc359dc3f8
 </TASK>
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