From b6361a3836a50f9bbe06dba4bf5740c3bfb1af3d Mon Sep 17 00:00:00 2001
From: Dave Reisner <dreisner@archlinux.org>
Date: Sat, 7 Mar 2020 13:48:36 -0500
Subject: only add modules if the filename value looks like a path

This is a defensive measure against the bug raised in FS#65725. While
it does technically avoid the bug, it isn't IMO the proper fix. We'll
address that in another patch.
---
 functions | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/functions b/functions
index 1c72b56..bc9c528 100644
--- a/functions
+++ b/functions
@@ -376,11 +376,17 @@ add_module() {
     while IFS=':= ' read -r -d '' field value; do
         case "$field" in
             filename)
-                found=1
-                module=${value##*/} module=${module%.ko*}
-                quiet "adding module: %s" "$module"
-                _modpaths["$value"]=1
-                _addedmodules["${module//-/_}"]=1
+                # Only add modules with filenames that look like paths (e.g.
+                # it might be reported as "(builtin)"). We'll defer actually
+                # checking whether or not the file exists -- any errors can be
+                # handled during module install time.
+                if [[ $value = /* ]]; then
+                    found=1
+                    module=${value##*/} module=${module%.ko*}
+                    quiet "adding module: %s (%s)" "$module" "$value"
+                    _modpaths["$value"]=1
+                    _addedmodules["${module//-/_}"]=1
+                fi
                 ;;
             depends)
                 IFS=',' read -r -a deps <<< "$value"
-- 
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