diff --git a/tests/zfs-tests/tests/functional/acl/acl.cfg b/tests/zfs-tests/tests/functional/acl/acl.cfg
index fbebe3884..8fa85d673 100644
--- a/tests/zfs-tests/tests/functional/acl/acl.cfg
+++ b/tests/zfs-tests/tests/functional/acl/acl.cfg
@@ -26,7 +26,7 @@
 
 . $STF_SUITE/include/libtest.shlib
 
-export NISSTAFILE=/var/tmp/nis_state
+export NISSTAFILE=$TEST_BASE_DIR/nis_state
 export TESTFILE=testfile$$
 export TESTFILE0=testfile0.$$
 export TESTFILE2=testfile2.$$
diff --git a/tests/zfs-tests/tests/functional/acl/acl_common.kshlib b/tests/zfs-tests/tests/functional/acl/acl_common.kshlib
index 0fe6d2b6a..a81cd76ba 100644
--- a/tests/zfs-tests/tests/functional/acl/acl_common.kshlib
+++ b/tests/zfs-tests/tests/functional/acl/acl_common.kshlib
@@ -92,8 +92,8 @@ function compare_acls #<src> <tgt>
 	(( ${#src} == 0 || ${#tgt} == 0 )) && return 1
 	[[ $src == $tgt ]] && return 0
 
-	typeset tmpsrc=/tmp/compare_acls.src.$$
-	typeset tmptgt=/tmp/compare_acls.tgt.$$
+	typeset tmpsrc=$TEST_BASE_DIR/compare_acls.src.$$
+	typeset tmptgt=$TEST_BASE_DIR/compare_acls.tgt.$$
 
 	get_acl $src > $tmpsrc
 	get_acl $tgt > $tmptgt
@@ -160,8 +160,8 @@ function compare_xattrs #<src> <tgt>
 	(( ${#src} == 0 || ${#tgt} == 0 )) && return 1
 	[[ $src == $tgt ]] && return 0
 
-	typeset tmpsrc=/tmp/compare_xattrs.src.$$
-	typeset tmptgt=/tmp/compare_xattrs.tgt.$$
+	typeset tmpsrc=$TEST_BASE_DIR/compare_xattrs.src.$$
+	typeset tmptgt=$TEST_BASE_DIR/compare_xattrs.tgt.$$
 
 	get_xattr $src > $tmpsrc
 	get_xattr $tgt > $tmptgt
@@ -276,7 +276,7 @@ function get_ACE #<file or dir name> <specified number> <verbose|compact>
 	typeset format=${3:-verbose}
 	typeset -i next_num=-1
 
-        typeset tmpfile=/tmp/tmp_get_ACE.$$
+        typeset tmpfile=$TEST_BASE_DIR/tmp_get_ACE.$$
         typeset line=""
 	typeset args
 
diff --git a/tests/zfs-tests/tests/functional/acl/posix/posix_003_pos.ksh b/tests/zfs-tests/tests/functional/acl/posix/posix_003_pos.ksh
index c45b2ecd1..dc6ef0d24 100755
--- a/tests/zfs-tests/tests/functional/acl/posix/posix_003_pos.ksh
+++ b/tests/zfs-tests/tests/functional/acl/posix/posix_003_pos.ksh
@@ -36,7 +36,6 @@
 verify_runnable "both"
 log_assert "Verify regular and default POSIX ACLs survive  remount"
 
-typeset output=/tmp/zfs-posixacl.$$
 typeset acl_str1="^group:$ZFS_ACL_STAFF_GROUP:-wx$"
 typeset acl_str2="^default:group:$ZFS_ACL_STAFF_GROUP:-wx$"
 typeset ACLDIR="$TESTDIR/dir.1"