sbom-cve-check-common: print warnings on unpatched CVEs

The now removed cve-check class used to print warnings when CVEs with
status "Unpatched" were found. Add this feature to the
sbom-cve-check class with the same default value (enabled).

For now it only does so when the cvecheck report type is enabled. It may
be possible to do the same for the SPDX report type.

Sample output:

WARNING: core-image-minimal-1.0-r0 do_sbom_cve_check: busybox-1.37.0: Found unpatched CVEs: CVE-2024-58251
WARNING: core-image-minimal-1.0-r0 do_sbom_cve_check: expat-2.7.5: Found unpatched CVEs: CVE-2025-66382, CVE-2026-41080
WARNING: core-image-minimal-1.0-r0 do_sbom_cve_check: glibc-2.43+git: Found unpatched CVEs: CVE-2010-4756, CVE-2026-4046

Signed-off-by: Antonin Godard <antonin.godard@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/meta/classes/sbom-cve-check-common.bbclass b/meta/classes/sbom-cve-check-common.bbclass
index 6963ad71c617d0640a5e1814b509a3b2e3ebd3b1..32c29a0ec2c3d54dea4ba41f235001f7f18711b3 100644 (file)
--- a/meta/classes/sbom-cve-check-common.bbclass
+++ b/meta/classes/sbom-cve-check-common.bbclass
@@ -48,6 +48,32 @@ SBOM_CVE_CHECK_UPDATE_DB_DEPENDENCIES ?= " \
     sbom-cve-check-update-nvd-native:do_patch \
 "
 
+SBOM_CVE_CHECK_SHOW_WARNINGS ?= "1"
+SBOM_CVE_CHECK_SHOW_WARNINGS[doc] = "Show warning messages when unpatched CVEs are found. \
+Requires the SBOM_CVE_CHECK_EXPORT_CVECHECK report type to be enabled"
+
+def show_warnings_from_file(cvecheck_export_file):
+    import json
+
+    try:
+        with open(cvecheck_export_file, "r") as f:
+            report = json.load(f)
+    except (json.JSONDecodeError, UnicodeDecodeError) as e:
+        bb.error(f"Failed to open JSON report file {f}: {e}")
+        return
+
+    packages = report.get("package", [])
+    for package in packages:
+        unpatched = []
+        cves = package.get("issue", [])
+        for cve in cves:
+            if cve["status"] == "Unpatched":
+                unpatched.append(cve["id"])
+        if unpatched:
+            pname = package["name"]
+            version = package["version"]
+            bb.warn(f"{pname}-{version}: Found unpatched CVEs: {', '.join(unpatched)}")
+
 def run_sbom_cve_check(d, sbom_path, export_base_name, export_link_name=None):
     import os
     import bb
@@ -94,9 +120,13 @@ def run_sbom_cve_check(d, sbom_path, export_base_name, export_link_name=None):
         bb.error(f"sbom-cve-check failed: {e}")
         return
 
+    show_warnings = bb.utils.to_boolean(d.getVar("SBOM_CVE_CHECK_SHOW_WARNINGS"))
+
     for export_type, export_file, export_link in export_files:
         bb.note(f"sbom-cve-check exported: {export_file}")
         if export_link:
             update_symlinks(export_file, export_link)
+        if show_warnings and export_type == d.getVarFlag("SBOM_CVE_CHECK_EXPORT_CVECHECK", "type"):
+            show_warnings_from_file(export_file)