From 3dd00461f9cb91a6582653500603882ed1475e51 Mon Sep 17 00:00:00 2001
From: Weverything <rtrieu@google.com>
Date: Tue, 3 May 2022 14:55:34 -0700
Subject: [PATCH] [trace][intelpt] Fix out-of-bounds access.

The StringRef single argument constructor expects a null-terminated
string.  Explicitly pass the size to prevent reading pass the end
of the array.
---
 lldb/source/Plugins/Process/Linux/Procfs.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lldb/source/Plugins/Process/Linux/Procfs.cpp b/lldb/source/Plugins/Process/Linux/Procfs.cpp
index 1ff7c56..756749e 100644
--- a/lldb/source/Plugins/Process/Linux/Procfs.cpp
+++ b/lldb/source/Plugins/Process/Linux/Procfs.cpp
@@ -60,8 +60,8 @@ lldb_private::process_linux::GetAvailableLogicalCoreIDs() {
     if (!cpuinfo)
       return cpuinfo.takeError();
 
-    Expected<std::vector<int>> core_ids = GetAvailableLogicalCoreIDs(
-        StringRef(reinterpret_cast<const char *>(cpuinfo->data())));
+    Expected<std::vector<int>> core_ids = GetAvailableLogicalCoreIDs(StringRef(
+        reinterpret_cast<const char *>(cpuinfo->data()), cpuinfo->size()));
     if (!core_ids)
       return core_ids.takeError();
 
-- 
2.7.4