diff --git a/backport-grep-fix-regex-compilation-memory-leaks.patch b/backport-grep-fix-regex-compilation-memory-leaks.patch
new file mode 100644
index 0000000000000000000000000000000000000000..8b306edd503d852dd878230cd0014fadbb09c8f7
--- /dev/null
+++ b/backport-grep-fix-regex-compilation-memory-leaks.patch
@@ -0,0 +1,61 @@
+ec8c91e9d6ed3fc76f9f145dec8a456ce623a Mon Sep 17 00:00:00 2001
+From: Paul Eggert <eggert@cs.ucla.edu>
+Date: Fri, 24 Jun 2022 17:53:34 -0500
+Subject: grep: fix regex compilation memory leaks
+
+Problem reported by Jim Meyering in:
+https://lists.gnu.org/r/grep-devel/2022-06/msg00012.html
+* src/dfasearch.c (regex_compile): Fix memory leaks when SYNTAX_ONLY.
+---
+ src/dfasearch.c | 24 ++++++++++++++++--------
+ 1 file changed, 16 insertions(+), 8 deletions(-)
+
+diff --git a/src/dfasearch.c b/src/dfasearch.c
+index 8d832f0..2720b3a 100644
+--- a/src/dfasearch.c
++++ b/src/dfasearch.c
+@@ -148,24 +148,32 @@ regex_compile (struct dfa_comp *dc, char const *p, idx_t len,
+                idx_t pcount, idx_t lineno, reg_syntax_t syntax_bits,
+                bool syntax_only)
+ {
+-  struct re_pattern_buffer pat0;
+-  struct re_pattern_buffer *pat = syntax_only ? &pat0 : &dc->patterns[pcount];
+-  pat->buffer = NULL;
+-  pat->allocated = 0;
++  struct re_pattern_buffer pat;
++  pat.buffer = NULL;
++  pat.allocated = 0;
+ 
+   /* Do not use a fastmap with -i, to work around glibc Bug#20381.  */
+   verify (UCHAR_MAX < IDX_MAX);
+   idx_t uchar_max = UCHAR_MAX;
+-  pat->fastmap = (syntax_only | match_icase) ? NULL : ximalloc (uchar_max + 1);
++  pat.fastmap = syntax_only | match_icase ? NULL : ximalloc (uchar_max + 1);
+ 
+-  pat->translate = NULL;
++  pat.translate = NULL;
+ 
+   if (syntax_only)
+     re_set_syntax (syntax_bits | RE_NO_SUB);
+   else
+     re_set_syntax (syntax_bits);
+ 
+-  char const *err = re_compile_pattern (p, len, pat);
++  char const *err = re_compile_pattern (p, len, &pat);
+   if (!err)
+-    return true;
++    {
++      if (syntax_only)
++        regfree (&pat);
++      else
++        dc->patterns[pcount] = pat;
++
++      return true;
++    }
++
++  free (pat.fastmap);
+ 
+   /* Emit a filename:lineno: prefix for patterns taken from files.  */
+   idx_t pat_lineno;
+-- 
+cgit v1.1
\ No newline at end of file
diff --git a/grep.spec b/grep.spec
index 0f07167123e1ee4d9c1e1743021103eeef9a0855..40ffc3381037c1bcb7cc5c5179d6649820b32ed4 100644
--- a/grep.spec
+++ b/grep.spec
@@ -12,6 +12,7 @@ Source3: grepconf.sh
 Patch1: backport-grep-avoid-sticky-problem-with-f-f.patch
 Patch2: backport-grep-s-does-not-suppress-binary-file-matches.patch
 Patch3: backport-grep-bug-backref-in-last-of-multiple-patter.patch
+Patch4: backport-grep-fix-regex-compilation-memory-leaks.patch
 
 BuildRequires: gcc pcre-devel >= 3.9-10 texinfo gettext libsigsegv-devel automake
 Provides: /bin/egrep /bin/fgrep /bin/grep bundled(gnulib)
@@ -56,6 +57,9 @@ make check
 
 
 %changelog
+* Mon Apr 3 2023 renchunhui <renchunhui2@huawei.com> - 3.7-6
+- backport patch from upstream
+
 * Mon Dec 26 2022 gaoruoshu <gaoruoshu@huawei.com> - 3.7-5
 - backport patch from upstream