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[CP] fix empty string global-buffer-overflow in asan

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obdev
2023-07-05 08:42:24 +00:00
committed by ob-robot
parent 6819b7ed03
commit e02783e957
1 changed files with 1 additions and 1 deletions
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src/sql/plan_cache/ob_sql_parameterization.cpp
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@ -2154,7 +2154,7 @@ int ObSqlParameterization::resolve_paramed_const(SelectItemTraverseCtx &ctx)
// there is no need to copy it. paramed_field_name_ should be replaced with '?'
if (0 == ctx.org_expr_name_.case_compare(ObString(param_node->str_len_, param_node->str_value_))) {
// do nothing
} else if (tmp_len > 0) {
} else if (tmp_len > 0 && ctx.org_expr_name_.length() > 0) {
int32_t len = static_cast<int64_t>(tmp_len);
MEMCPY(ctx.param_info_.paramed_field_name_ + ctx.param_info_.name_len_, ctx.org_expr_name_.ptr() + ctx.expr_pos_ - ctx.expr_start_pos_, len);
ctx.param_info_.name_len_ += len;