From adcfdceb8644a2fcbff92edc0eb81dbdf9e47409 Mon Sep 17 00:00:00 2001
From: hemanth94 <cosmichemanth94@gmail.com>
Date: Sat, 15 Feb 2025 14:30:05 +0530
Subject: [PATCH] fix: Checking overflow in Sliced function (#21207)

---
 crates/polars-arrow/src/array/mod.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/crates/polars-arrow/src/array/mod.rs b/crates/polars-arrow/src/array/mod.rs
index 45189274d057..76d68d0a1b5a 100644
--- a/crates/polars-arrow/src/array/mod.rs
+++ b/crates/polars-arrow/src/array/mod.rs
@@ -444,8 +444,11 @@ macro_rules! impl_sliced {
         #[inline]
         #[must_use]
         pub fn sliced(self, offset: usize, length: usize) -> Self {
+            let total = offset
+                .checked_add(length)
+                .expect("offset + length overflowed");
             assert!(
-                offset + length <= self.len(),
+                total <= self.len(),
                 "the offset of the new Buffer cannot exceed the existing length"
             );
             unsafe { Self::sliced_unchecked(self, offset, length) }