Accept + within kernel versions

CHANGELOG.md

@@ -56,6 +56,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 ### Changed
 
 - Explicitly ignore compat-style NIS lines in passwd/group during syncuser. #1286
+- Accept `+` within kernel version. #1268
 
 ## v4.5.4, 2024-06-12
 

internal/pkg/kernel/kernel.go

@@ -252,7 +252,7 @@ func FindKernel(root string) (kPath string, version string, err error) {
 		}
 		for _, foundKernel := range potentialKernel {
 			wwlog.Debug("Parsing out kernel version for %s", foundKernel)
-			re := regexp.MustCompile(fmt.Sprintf(path.Join(root, searchPath), `([\w\d-\.]*)`))
+			re := regexp.MustCompile(fmt.Sprintf(path.Join(root, searchPath), `([\w\d-\.+]*)`))
 			version := re.FindAllStringSubmatch(foundKernel, -1)
 			if version == nil {
 				return foundKernel, "", fmt.Errorf("could not parse kernel version")