From ecc87a40818266254872ffa5616f6335ea7814ab Mon Sep 17 00:00:00 2001
From: max <max@example.com>
Date: Mon, 6 Jul 2026 03:55:06 +0200
Subject: [PATCH] fix(sort): avoid int64 overflow comparing large integers

The int/int comparator returned int(lhs - rhs); the int64 subtraction overflows for large-magnitude values, giving the wrong sign. Compare directly instead.
---
 pkg/yqlib/operator_sort.go      | 7 ++++++-
 pkg/yqlib/operator_sort_test.go | 9 +++++++++
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/pkg/yqlib/operator_sort.go b/pkg/yqlib/operator_sort.go
index 2bcf2157..7f364ece 100644
--- a/pkg/yqlib/operator_sort.go
+++ b/pkg/yqlib/operator_sort.go
@@ -166,7 +166,12 @@ func (a sortableNodeArray) compare(lhs *CandidateNode, rhs *CandidateNode, dateT
 		if err != nil {
 			panic(err)
 		}
-		return int(lhsNum - rhsNum)
+		if lhsNum < rhsNum {
+			return -1
+		} else if lhsNum > rhsNum {
+			return 1
+		}
+		return 0
 	} else if (lhsTag == "!!int" || lhsTag == "!!float") && (rhsTag == "!!int" || rhsTag == "!!float") {
 		lhsNum, err := strconv.ParseFloat(lhs.Value, 64)
 		if err != nil {
diff --git a/pkg/yqlib/operator_sort_test.go b/pkg/yqlib/operator_sort_test.go
index 39ba2347..33f1f5dc 100644
--- a/pkg/yqlib/operator_sort_test.go
+++ b/pkg/yqlib/operator_sort_test.go
@@ -171,6 +171,15 @@ var sortByOperatorScenarios = []expressionScenario{
 			"D0, P[], (!!seq)::# abc\n- def\n# ghi\n",
 		},
 	},
+	{
+		skipDoc:     true,
+		description: "Sort large integers (no int64 subtraction overflow)",
+		document:    "[5000000000000000000, -5000000000000000000]",
+		expression:  `sort`,
+		expected: []string{
+			"D0, P[], (!!seq)::[-5000000000000000000, 5000000000000000000]\n",
+		},
+	},
 }
 
 func TestSortByOperatorScenarios(t *testing.T) {