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Fix traverse does not check overflow resulting in stack overflow

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lf0 2021-09-17 19:09:35 +08:00 committed by wangzelin.wzl
parent cedd8a0188
commit 875865e081
1 changed files with 10 additions and 2 deletions
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12
src/sql/plan_cache/ob_ps_sql_utils.cpp
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@ -62,8 +62,16 @@ int ObPsSqlParamHelper::traverse(
TraverseContext& ctx, ObIArray<int64_t>& no_check_type_offsets, ObIArray<int64_t>& not_param_offsets)
{
int ret = OB_SUCCESS;
if (OB_ISNULL(ctx.node_)) {
// ignore
bool is_overflow = false;
if (OB_FAIL(check_stack_overflow(is_overflow))) {
LOG_WARN("failed to check stack overflow", K(ret));
} else if (is_overflow) {
ret = OB_SIZE_OVERFLOW;
LOG_WARN("too deep recusive", K(ret));
}
if (OB_FAIL(ret)) {
} else if (OB_ISNULL(ctx.node_)) {
//ignore
} else {
bool is_set = false;
const ParseNode& parent = *ctx.node_;