diff --git a/0006-Adapt-to-bionic-libc-improve-lcov-coverage.patch b/0006-Adapt-to-bionic-libc-improve-lcov-coverage.patch
new file mode 100644
index 0000000..8626af6
--- /dev/null
+++ b/0006-Adapt-to-bionic-libc-improve-lcov-coverage.patch
@@ -0,0 +1,98 @@
+From 88596185a48394d9aea122e80a6b6cf86ac216ba Mon Sep 17 00:00:00 2001
+From: chegJH <hejunjie10@huawei.com>
+Date: Tue, 10 May 2022 18:06:53 +0800
+Subject: [PATCH] Adapt to bionic libc, improve lcov coverage
+
+Signed-off-by: chegJH <hejunjie10@huawei.com>
+---
+ src/utils/cutils/CMakeLists.txt         |  4 ++++
+ test/cutils/utils_pwgr/passwd_sample    |  1 +
+ test/cutils/utils_pwgr/utils_pwgr_ut.cc | 24 ++++++++++++++++++++++++
+ 3 files changed, 29 insertions(+)
+
+diff --git a/src/utils/cutils/CMakeLists.txt b/src/utils/cutils/CMakeLists.txt
+index 0ecad671..30414d91 100644
+--- a/src/utils/cutils/CMakeLists.txt
++++ b/src/utils/cutils/CMakeLists.txt
+@@ -2,6 +2,10 @@
+ aux_source_directory(${CMAKE_CURRENT_SOURCE_DIR} local_cutils_srcs)
+ add_subdirectory(map)
+ 
++if (NOT ANDROID)
++    list(REMOVE_ITEM local_cutils_srcs "${CMAKE_CURRENT_SOURCE_DIR}/utils_pwgr.c")
++endif()
++
+ set(CUTILS_SRCS
+     ${local_cutils_srcs}
+     ${MAP_SRCS}
+diff --git a/test/cutils/utils_pwgr/passwd_sample b/test/cutils/utils_pwgr/passwd_sample
+index d4f3250d..76853454 100644
+--- a/test/cutils/utils_pwgr/passwd_sample
++++ b/test/cutils/utils_pwgr/passwd_sample
+@@ -3,6 +3,7 @@ bin:x:1:1:bin:/bin:/sbin/nologin
+ bin:x:-1:1:bin:/bin:/sbin/nologin
+ uidonly:x:1::bin:/bin:/sbin/nologin
+ ::::1:1:bin:/bin:/sbin/nologin
++root:x:
+ 
+ #npt:*:66:77::/etc/ntp:/sbin/nologin
+ npt:*:66:77::/etc/ntp:/sbin/nologin
+diff --git a/test/cutils/utils_pwgr/utils_pwgr_ut.cc b/test/cutils/utils_pwgr/utils_pwgr_ut.cc
+index 1a121f88..1ed8eaa1 100644
+--- a/test/cutils/utils_pwgr/utils_pwgr_ut.cc
++++ b/test/cutils/utils_pwgr/utils_pwgr_ut.cc
+@@ -24,6 +24,7 @@ TEST(utils_pwgr, test_getpwent_r)
+ 
+     struct passwd pw;
+     struct passwd *ppw = nullptr;
++    struct passwd *ppw_alter = &pw;
+     char buf[BUFSIZ];
+ 
+     std::vector<std::tuple<std::string, std::string, int, int, std::string, std::string, std::string>> testcase = {
+@@ -36,6 +37,17 @@ TEST(utils_pwgr, test_getpwent_r)
+         std::make_tuple("-npt", "*", 0, 0, "", "/etc/ntp", "/sbin/nologin")
+     };
+ 
++    ASSERT_EQ(util_getpwent_r(NULL, &pw, buf, sizeof(buf), &ppw), -1);
++    ASSERT_EQ(util_getpwent_r(f_pw, &pw, NULL, 0, &ppw), -1);
++    ASSERT_EQ(util_getpwent_r(f_pw, &pw, NULL, 1, &ppw), -1);
++    ASSERT_EQ(util_getpwent_r(f_pw, &pw, buf, sizeof(buf), &ppw_alter), -1);
++
++    while (!feof(f_pw)) {
++        (void)getc(f_pw);
++    }
++    ASSERT_EQ(util_getpwent_r(f_pw, &pw, buf, sizeof(buf), &ppw), ENOENT);
++    rewind(f_pw);
++
+     for (const auto &elem : testcase) {
+         ASSERT_EQ(util_getpwent_r(f_pw, &pw, buf, sizeof(buf), &ppw), 0);
+         ASSERT_STREQ(pw.pw_name, std::get<0>(elem).c_str());
+@@ -61,6 +73,7 @@ TEST(utils_pwgr, test_getgrent_r)
+ 
+     struct group gr{0};
+     struct group *pgr = nullptr;
++    struct group *pgr_alter = &gr;
+     char buf[BUFSIZ];
+     size_t i = 0;
+     size_t j = 0;
+@@ -80,6 +93,17 @@ TEST(utils_pwgr, test_getgrent_r)
+         std::make_tuple("adm", "x", 4),
+     };
+ 
++    ASSERT_EQ(util_getgrent_r(NULL, &gr, buf, sizeof(buf), &pgr), -1);
++    ASSERT_EQ(util_getgrent_r(f_gr, &gr, NULL, 0, &pgr), -1);
++    ASSERT_EQ(util_getgrent_r(f_gr, &gr, NULL, 1, &pgr), -1);
++    ASSERT_EQ(util_getgrent_r(f_gr, &gr, buf, sizeof(buf), &pgr_alter), -1);
++
++    while (!feof(f_gr)) {
++        (void)getc(f_gr);
++    }
++    ASSERT_EQ(util_getgrent_r(f_gr, &gr, buf, sizeof(buf), &pgr), ENOENT);
++    rewind(f_gr);
++
+     for (; i < string_list.size(); ++i) {
+         ASSERT_EQ(util_getgrent_r(f_gr, &gr, buf, sizeof(buf), &pgr), 0);
+         ASSERT_STREQ(gr.gr_name, std::get<0>(testcase[i]).c_str());
+-- 
+2.32.0 (Apple Git-132)
+
diff --git a/iSulad.spec b/iSulad.spec
index 706bd16..d2e8648 100644
--- a/iSulad.spec
+++ b/iSulad.spec
@@ -1,5 +1,5 @@
 %global _version 2.0.13
-%global _release 3
+%global _release 4
 %global is_systemd 1
 %global enable_shimv2 1
 %global is_embedded 1
@@ -18,6 +18,7 @@ Patch0002:  0002-refactor-mount-parse-in-spec-module.patch
 Patch0003:  0003-support-isula-wait-even-if-it-s-not-oci-image.patch
 Patch0004:  0004-add-isula-import-restful-mode.patch
 Patch0005:  0005-Adapt-to-bionic-libc-parser-for-passwd-and-group-obj.patch
+Patch0006:  0006-Adapt-to-bionic-libc-improve-lcov-coverage.patch
 
 %ifarch x86_64 aarch64
 Provides:       libhttpclient.so()(64bit)
@@ -245,6 +246,12 @@ fi
 %endif
 
 %changelog
+* Mon May 10 2022 hejunjie<hejunjie10@huawei.com> - 2.0.13-4
+- Type: enhancement
+- ID: NA
+- SUG: NA
+- DESC: bionic adaptation, increase lcov coverage
+
 * Mon May 5 2022 hejunjie<hejunjie10@huawei.com> - 2.0.13-3
 - Type: enhancement
 - ID: NA