From e057fb8e349d81bd3996c6d5e68719c015969bac Mon Sep 17 00:00:00 2001
From: Pierre Pebay <pebay.pierre@gmail.com>
Date: Tue, 26 Nov 2024 19:46:53 +0100
Subject: [PATCH] #2302: Add more buffer boundary check

---
 src/vt/metrics/perf_data.cc | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/vt/metrics/perf_data.cc b/src/vt/metrics/perf_data.cc
index d3b637b422..13efad550f 100644
--- a/src/vt/metrics/perf_data.cc
+++ b/src/vt/metrics/perf_data.cc
@@ -146,6 +146,11 @@ std::unordered_map<std::string, uint64_t> PerfData::getTaskMeasurements() {
     uint64_t count = 0;
 
     if (event_fds_[i] != -1) {
+      if (sizeof(count) != sizeof(uint64_t)) {
+          vtAbort("Buffer size mismatch: expected " + std::to_string(sizeof(uint64_t)) +
+                  " bytes, but got " + std::to_string(sizeof(count)));
+      }
+
       ssize_t bytesRead = read(event_fds_[i], &count, sizeof(count));
 
       if (bytesRead == sizeof(count)) {