cve-check: don't warn if a patch is remote

We don't make do_cve_check depend on do_unpack because that would be a
waste of time 99% of the time.  The compromise here is that we can't
scan remote patches for issues, but this isn't a problem so downgrade
the warning to a note.

Also move the check for CVEs in the filename before the local file check
so that even with remote patches, we still check for CVE references in
the name.

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit 0251cad677579f5b4dcc25fa2f8552c6040ac2cf)
Signed-off-by: Steve Sakoman <steve@sakoman.com>

1 files changed, 6 insertions, 5 deletions

diff --git a/meta/lib/oe/cve_check.py b/meta/lib/oe/cve_check.py
index b4c9f6ffe3..8acd2879bf 100644
--- a/meta/lib/oe/cve_check.py
+++ b/meta/lib/oe/cve_check.py
@@ -95,11 +95,6 @@ def get_patched_cves(d):
     for url in oe.patch.src_patches(d):
         patch_file = bb.fetch.decodeurl(url)[2]
 
-        # Remote compressed patches may not be unpacked, so silently ignore them
-        if not os.path.isfile(patch_file):
-            bb.warn("%s does not exist, cannot extract CVE list" % patch_file)
-            continue
-
         # Check patch file name for CVE ID
         fname_match = cve_file_name_match.search(patch_file)
         if fname_match:
@@ -107,6 +102,12 @@ def get_patched_cves(d):
             patched_cves.add(cve)
             bb.debug(2, "Found CVE %s from patch file name %s" % (cve, patch_file))
 
+        # Remote patches won't be present and compressed patches won't be
+        # unpacked, so say we're not scanning them
+        if not os.path.isfile(patch_file):
+            bb.note("%s is remote or compressed, not scanning content" % patch_file)
+            continue
+
         with open(patch_file, "r", encoding="utf-8") as f:
             try:
                 patch_text = f.read()