diff --git a/poky/meta/classes/cve-check.bbclass b/poky/meta/classes/cve-check.bbclass
index da7f933..4b4ea78 100644
--- a/poky/meta/classes/cve-check.bbclass
+++ b/poky/meta/classes/cve-check.bbclass
@@ -1,3 +1,9 @@
+#
+# Copyright OpenEmbedded Contributors
+#
+# SPDX-License-Identifier: MIT
+#
+
 # This class is used to check recipes against public CVEs.
 #
 # In order to use this class just inherit the class in the
@@ -139,17 +145,18 @@
     """
     from oe.cve_check import get_patched_cves
 
-    if os.path.exists(d.getVar("CVE_CHECK_DB_FILE")):
-        try:
-            patched_cves = get_patched_cves(d)
-        except FileNotFoundError:
-            bb.fatal("Failure in searching patches")
-        ignored, patched, unpatched, status = check_cves(d, patched_cves)
-        if patched or unpatched or (d.getVar("CVE_CHECK_COVERAGE") == "1" and status):
-            cve_data = get_cve_info(d, patched + unpatched + ignored)
-            cve_write_data(d, patched, unpatched, ignored, cve_data, status)
-    else:
-        bb.note("No CVE database found, skipping CVE check")
+    with bb.utils.fileslocked([d.getVar("CVE_CHECK_DB_FILE_LOCK")], shared=True):
+        if os.path.exists(d.getVar("CVE_CHECK_DB_FILE")):
+            try:
+                patched_cves = get_patched_cves(d)
+            except FileNotFoundError:
+                bb.fatal("Failure in searching patches")
+            ignored, patched, unpatched, status = check_cves(d, patched_cves)
+            if patched or unpatched or (d.getVar("CVE_CHECK_COVERAGE") == "1" and status):
+                cve_data = get_cve_info(d, patched + unpatched + ignored)
+                cve_write_data(d, patched, unpatched, ignored, cve_data, status)
+        else:
+            bb.note("No CVE database found, skipping CVE check")
 
 }
 
@@ -290,7 +297,8 @@
             vendor = "%"
 
         # Find all relevant CVE IDs.
-        for cverow in conn.execute("SELECT DISTINCT ID FROM PRODUCTS WHERE PRODUCT IS ? AND VENDOR LIKE ?", (product, vendor)):
+        cve_cursor = conn.execute("SELECT DISTINCT ID FROM PRODUCTS WHERE PRODUCT IS ? AND VENDOR LIKE ?", (product, vendor))
+        for cverow in cve_cursor:
             cve = cverow[0]
 
             if cve in cve_ignore:
@@ -309,7 +317,8 @@
             vulnerable = False
             ignored = False
 
-            for row in conn.execute("SELECT * FROM PRODUCTS WHERE ID IS ? AND PRODUCT IS ? AND VENDOR LIKE ?", (cve, product, vendor)):
+            product_cursor = conn.execute("SELECT * FROM PRODUCTS WHERE ID IS ? AND PRODUCT IS ? AND VENDOR LIKE ?", (cve, product, vendor))
+            for row in product_cursor:
                 (_, _, _, version_start, operator_start, version_end, operator_end) = row
                 #bb.debug(2, "Evaluating row " + str(row))
                 if cve in cve_ignore:
@@ -353,10 +362,12 @@
                         bb.note("%s-%s is vulnerable to %s" % (pn, real_pv, cve))
                         cves_unpatched.append(cve)
                     break
+            product_cursor.close()
 
             if not vulnerable:
                 bb.note("%s-%s is not vulnerable to %s" % (pn, real_pv, cve))
                 patched_cves.add(cve)
+        cve_cursor.close()
 
         if not cves_in_product:
             bb.note("No CVE records found for product %s, pn %s" % (product, pn))
@@ -381,14 +392,15 @@
     conn = sqlite3.connect(db_file, uri=True)
 
     for cve in cves:
-        for row in conn.execute("SELECT * FROM NVD WHERE ID IS ?", (cve,)):
+        cursor = conn.execute("SELECT * FROM NVD WHERE ID IS ?", (cve,))
+        for row in cursor:
             cve_data[row[0]] = {}
             cve_data[row[0]]["summary"] = row[1]
             cve_data[row[0]]["scorev2"] = row[2]
             cve_data[row[0]]["scorev3"] = row[3]
             cve_data[row[0]]["modified"] = row[4]
             cve_data[row[0]]["vector"] = row[5]
-
+        cursor.close()
     conn.close()
     return cve_data