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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: 8095 Comm: syz-executor.4 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
 dump_stack+0x1c/0x28 lib/dump_stack.c:113
 ubsan_epilogue lib/ubsan.c:217 [inline]
 __ubsan_handle_out_of_bounds+0xfc/0x148 lib/ubsan.c:348
 direntry_create_vi+0x5f8/0xbb0 fs/reiserfs/item_ops.c:485
 create_virtual_node+0x844/0x1744 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+0x1748/0x7068 fs/reiserfs/fix_node.c:2635
 reiserfs_insert_item+0x860/0xa84 fs/reiserfs/stree.c:2238
 indirect2direct+0x58c/0xa40 fs/reiserfs/tail_conversion.c:283
 maybe_indirect_to_direct fs/reiserfs/stree.c:1585 [inline]
 reiserfs_cut_from_item+0x854/0x1c98 fs/reiserfs/stree.c:1692
 reiserfs_do_truncate+0x89c/0x11c8 fs/reiserfs/stree.c:1971
 reiserfs_truncate_file+0x510/0xb18 fs/reiserfs/inode.c:2308
 reiserfs_setattr+0xa14/0xedc fs/reiserfs/inode.c:3394
 notify_change+0xa84/0xd20 fs/attr.c:483
 do_truncate+0x1c0/0x28c fs/open.c:66
 do_sys_ftruncate+0x284/0x318 fs/open.c:194
 __do_sys_ftruncate fs/open.c:205 [inline]
 __se_sys_ftruncate fs/open.c:203 [inline]
 __arm64_sys_ftruncate+0x60/0x74 fs/open.c:203
 __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
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