1 files changed, 33 insertions, 0 deletions
diff --git a/boost-1.78-locale-Fix-access-to-first-element-of-empty-vector.patch b/boost-1.78-locale-Fix-access-to-first-element-of-empty-vector.patch
new file mode 100644
index 0000000..50e08a4
--- /dev/null
+++ b/boost-1.78-locale-Fix-access-to-first-element-of-empty-vector.patch
@@ -0,0 +1,33 @@
+From 1ff0ead837b32b9415dc840dfef6549e8754b98d Mon Sep 17 00:00:00 2001
+From: Alexander Grund <Flamefire@users.noreply.github.com>
+Date: Fri, 10 Dec 2021 17:53:01 +0100
+Subject: [PATCH] Fix access to first element of empty vector
+
+Trying to access tmp[0] causes a crash on Fedora when assertion on STL
+are enabled.
+
+/usr/include/c++/10/bits/stl_vector.h:1045: std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::operator[](std::vector<_Tp, _Alloc>::size_type) [with _Tp = unsigned char; _Alloc = std::allocator<unsigned char>; std::vector<_Tp, _Alloc>::reference = unsigned char&; std::vector<_Tp, _Alloc>::size_type = long unsigned int]: Assertion '__builtin_expect(__n < this->size(), true)' failed.
+
+Fix is to never have an empty vector as ICU sort keys include the NULL
+terminator, hence we need at least `length + 1` bytes which means the
+vector has at least 1 element: The NULL terminator
+---
+ src/icu/collator.cpp | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/libs/locale/src/icu/collator.cpp b/libs/locale/src/icu/collator.cpp
+index 7f1ea6ae..79668aa6 100644
+--- a/libs/locale/src/icu/collator.cpp
++++ b/libs/locale/src/icu/collator.cpp
+@@ -91,9 +91,9 @@ namespace boost {
+                 {
+                     icu::UnicodeString str=cvt_.icu(b,e);
+                     std::vector<uint8_t> tmp;
+-                    tmp.resize(str.length());
++                    tmp.resize(str.length() + 1u);
+                     icu::Collator *collate = get_collator(level);
+-                    int len = collate->getSortKey(str,&tmp[0],tmp.size());
++                    const int len = collate->getSortKey(str,&tmp[0],tmp.size());
+                     if(len > int(tmp.size())) {
+                         tmp.resize(len);
+                         collate->getSortKey(str,&tmp[0],tmp.size());