diff --git a/backport-Fix-segfaults-on-allocation-failure.patch b/backport-Fix-segfaults-on-allocation-failure.patch
new file mode 100644
index 0000000..041081c
--- /dev/null
+++ b/backport-Fix-segfaults-on-allocation-failure.patch
@@ -0,0 +1,34 @@
+From 7d644e7ba27eaadda753febf0b142faa9affbbca Mon Sep 17 00:00:00 2001
+From: hongyang7 <yang.a.hong@intel.com>
+Date: Thu, 16 Dec 2021 19:02:17 +0800
+Subject: [PATCH] Fix segfaults on allocation failure (#4)
+
+Throw std::bad_alloc instead of returning nullptr from
+ue2::AlignedAllocator. Allocators for STL containers are expected never
+to return with an invalid pointer, and instead must throw on failure.
+Violating this expectation can lead to invalid pointer dereferences.
+
+Co-authored-by: johanngan <johanngan.us@gmail.com>
+
+fixes github issue #317 (PR #320)
+---
+ src/util/alloc.h | 6 +++++-
+ 1 file changed, 5 insertions(+), 1 deletion(-)
+
+diff --git a/src/util/alloc.h b/src/util/alloc.h
+index de20c8d02..49b4a824d 100644
+--- a/src/util/alloc.h
++++ b/src/util/alloc.h
+@@ -76,7 +76,11 @@ class AlignedAllocator {
+ 
+     T *allocate(std::size_t size) const {
+         size_t alloc_size = size * sizeof(T);
+-        return static_cast<T *>(aligned_malloc_internal(alloc_size, N));
++        T *ptr = static_cast<T *>(aligned_malloc_internal(alloc_size, N));
++        if (!ptr) {
++            throw std::bad_alloc();
++        }
++        return ptr;
+     }
+ 
+     void deallocate(T *x, std::size_t) const noexcept {
diff --git a/hyperscan.spec b/hyperscan.spec
index b991cc1..d02dc10 100644
--- a/hyperscan.spec
+++ b/hyperscan.spec
@@ -1,6 +1,6 @@
 Name:    hyperscan
 Version: 5.4.0
-Release: 1
+Release: 2
 Summary: High-performance regular expression matching library
 
 License: BSD
@@ -10,6 +10,8 @@ Source0: https://github.com/intel/%{name}/archive/v%{version}.tar.gz#/%{name}-%{
 Patch0: hyperscan-aarch64-support.patch
 Patch1: Fix-build-error-on-x86_64.patch
 Patch2: Fix-hyperscan-gcc10.patch
+# https://github.com/intel/hyperscan/commit/7d644e7ba27eaadda753febf0b142faa9affbbca
+Patch3: backport-Fix-segfaults-on-allocation-failure.patch
 
 BuildRequires:  gcc-c++
 BuildRequires:  boost-devel
@@ -61,6 +63,9 @@ needed for developing Hyperscan applications.
 %install
 %make_install
 
+%check
+./bin/unit-hyperscan
+
 %files
 %doc %{_defaultdocdir}/%{name}/examples/README.md
 %doc %{_defaultdocdir}/%{name}/examples/*.cc
@@ -75,6 +80,9 @@ needed for developing Hyperscan applications.
 %{_includedir}/hs/
 
 %changelog
+* Thu Oct 20 2022 Liu Zixian <liuzixian4@huawei.com> - 5.4.0-2
+- Sync upstream bugfix and enable regression test
+
 * Wed Oct 06 2021 sdlzx <hdu_sdlzx@163.com> - 5.4.0-1
 - Update to 5.4.0