diff --git a/backport-aarch64-unw_step-validates-address-before-calling-dwarf_get.patch b/backport-aarch64-unw_step-validates-address-before-calling-dwarf_get.patch
new file mode 100644
index 0000000000000000000000000000000000000000..7be6a50be562faee61324d6b791f7c26ed0e9381
--- /dev/null
+++ b/backport-aarch64-unw_step-validates-address-before-calling-dwarf_get.patch
@@ -0,0 +1,48 @@
+From 8a0e2fa6579085dc8f51b2bdd90d8b00a2e7d6ab Mon Sep 17 00:00:00 2001
+From: he7850 <im.bin.hu@gmail.com>
+Date: Wed, 3 May 2023 15:18:27 +0800
+Subject: [PATCH] aarch64: unw_step() validates address before calling
+ dwarf_get
+
+Signed-off-by: he7850 <im.bin.hu@gmail.com>
+---
+ src/aarch64/Gstep.c | 16 +++++++++++++---
+ 1 file changed, 13 insertions(+), 3 deletions(-)
+
+diff --git a/src/aarch64/Gstep.c b/src/aarch64/Gstep.c
+index f4ef369d3..a2ed9bc35 100644
+--- a/src/aarch64/Gstep.c
++++ b/src/aarch64/Gstep.c
+@@ -156,18 +156,28 @@ unw_step (unw_cursor_t *cursor)
+       dwarf_get (&c->dwarf, c->dwarf.loc[UNW_AARCH64_X30], &c->dwarf.ip);
+     }
+ 
+-  /* Restore default memory validation state */
+-  c->validate = validate;
+-
+   ret = dwarf_step (&c->dwarf);
+   Debug(1, "dwarf_step()=%d\n", ret);
+ 
++  /* Restore default memory validation state */
++  c->validate = validate;
++
+   if (unlikely (ret == -UNW_ESTOPUNWIND))
+     return ret;
+ 
+   if (unlikely (ret < 0))
+     {
+       /* DWARF failed. */
++
++      /*
++       * We could get here because of missing/bad unwind information.
++       * Validate all addresses before dereferencing.
++       */
++      if (c->dwarf.as == unw_local_addr_space)
++	  {
++	      c->validate = 1;
++	  }
++
+       if (is_plt_entry (&c->dwarf))
+         {
+           Debug (2, "found plt entry\n");
+
diff --git a/libunwind.spec b/libunwind.spec
index a981dde82095139ce555143cc624498d3db7bba6..f6168fae2f7ff6d4bce6799000bdec10e1636e13 100644
--- a/libunwind.spec
+++ b/libunwind.spec
@@ -1,7 +1,7 @@
 Name: libunwind
 Epoch: 2
 Version: 1.6.2
-Release: 4
+Release: 5
 Summary: Libunwind provides a C ABI to determine the call-chain of a program
 License: BSD
 URL: http://savannah.nongnu.org/projects/libunwind
@@ -10,6 +10,7 @@ Source: http://download-mirror.savannah.gnu.org/releases/libunwind/libunwind-%{v
 Patch0001: 0001-fix-byte_order_is_valid-function-logic.patch
 Patch2: backport-check-namespace.sh-adjust-aarch64-symbols.patch
 Patch3: backport-tests-run-coredump-unwind-Skip-test-if-no-coredump-h.patch
+Patch4: backport-aarch64-unw_step-validates-address-before-calling-dwarf_get.patch
 
 ExclusiveArch: aarch64 %{ix86} x86_64
 
@@ -87,6 +88,12 @@ make check || true
 %{_mandir}/*/*
 
 %changelog
+* Tue Jun 20 2023 wangjiang <wangjiang37@h-partners.com> - 2:1.6.2-5
+- Type:bugfix
+- ID:NA
+- SUG:NA
+- DESC:fix failed testcase
+
 * Mon Feb 20 2023 shixuantong <shixuantong1@huawei.com> - 2:1.6.2-4
 - Type:bugfix
 - ID:NA