diff --git a/SOURCES/0001-wait-child-with-os-wait.patch b/SOURCES/0001-wait-child-with-os-wait.patch
new file mode 100644
index 0000000..73b59e3
--- /dev/null
+++ b/SOURCES/0001-wait-child-with-os-wait.patch
@@ -0,0 +1,52 @@
+commit e7b3e6817421763eee37cb35ef8627bdd37a3690
+Author: Chunyu Hu <chuhu@redhat.com>
+Date:   Wed May 6 18:59:43 2020 +0800
+
+    Wait child with os.wait()
+    
+    os.popen() is an async method, it fork() child and exec() in child
+    with the arg command. If it's slow enough, main process could get
+    incomplete result.
+    
+    During our test, we find python3 is faster than python2,after coverting
+    to python3, 'groupadd' usually doesn't finish when the followed step iter
+    on groups, we would get '-1' as the groupid and lead to error.
+    
+    To reproduce it with python3:
+    /root/rpmbuild/BUILD/libhugetlbfs-2.21/huge_page_setup_helper.py <<EOF
+    128
+    hugepages
+    hugepages root
+    EOF
+    
+    ...
+    hugeadm:ERROR: Invalid group specification (-1)
+    ...
+    
+    Signed-off-by: Chunyu Hu <chuhu@redhat.com>
+
+diff --git a/huge_page_setup_helper.py b/huge_page_setup_helper.py
+index a9ba2bf..01fc8dc 100755
+--- a/huge_page_setup_helper.py
++++ b/huge_page_setup_helper.py
+@@ -169,6 +169,10 @@ else:
+         os.popen("/usr/sbin/groupadd %s" % userGroupReq)
+     else:
+         print("/usr/sbin/groupadd %s" % userGroupReq)
++
++    # wait for the groupadd finish
++    os.wait()
++
+     groupNames = os.popen("/usr/bin/getent group %s" % userGroupReq).readlines()
+     for line in groupNames:
+         curGroupName = line.split(":")[0]
+@@ -244,6 +248,9 @@ else:
+     print("/usr/bin/hugeadm --set-recommended-shmmax")
+     print()
+ 
++# wait for the hugepage setups finish
++os.wait()
++
+ # figure out what that shmmax value we just set was
+ hugeadmexplain = os.popen("/usr/bin/hugeadm --explain 2>/dev/null").readlines()
+ for line in hugeadmexplain:
diff --git a/SPECS/libhugetlbfs.spec b/SPECS/libhugetlbfs.spec
index 772c801..7a92b44 100644
--- a/SPECS/libhugetlbfs.spec
+++ b/SPECS/libhugetlbfs.spec
@@ -1,6 +1,6 @@
 Name: libhugetlbfs
 Version: 2.21
-Release: 16%{?dist}
+Release: 17%{?dist}
 Summary: A library which provides easy access to huge pages of memory
 Group: System Environment/Libraries
 License: LGPLv2+
@@ -38,6 +38,10 @@ Patch7: huge_page_setup_helper-python3-convert.patch
 # Fixes for downstream COVSCAN and RPMDiff execshield complaints:
 Patch8: tests-fix-covscan-SHELLCHECK_WARNING-complaints.patch
 Patch9: tests-include-missing-LDFLAGS-to-make-targets.patch
+# Patch10: RHBZ#1832243 "hugeadm: ERROR: Invalid group specification (-1)" fix
+# upstream pull request
+# https://github.com/libhugetlbfs/libhugetlbfs/pull/48/commits/e7b3e6817421763eee37cb35ef8627bdd37a3690
+Patch10: 0001-wait-child-with-os-wait.patch
 
 # Upstream follow-ups for libhugetlbfs-2.21
 Patch50: 0001-tests-Add-utility-to-check-for-a-minimum-number-of-o.patch
@@ -150,6 +154,7 @@ to verify the libhugetlbfs functionality and validate the library.
 %patch7 -p1
 %patch8 -p1
 %patch9 -p1
+%patch10 -p1
 
 pathfix.py -i %{__python3} -pn huge_page_setup_helper.py \
                                       tests/run_tests.py
@@ -224,6 +229,9 @@ rm -fr $RPM_BUILD_ROOT/%{_sbindir}/
 %{_libdir}/libhugetlbfs
 
 %changelog
+* Tue May 26 2020 Rafael Aquini <aquini@redhat.com> - 2.21-17
+- hugeadm: "ERROR: Invalid group specification" fix (1832243)
+
 * Mon Apr 13 2020 Rafael Aquini <aquini@redhat.com> - 2.21-16
 - libhugetlbfs-tests: harden the testcases to satisfy EXECSHIELD RPMDiff checks (1785296)