sd-boot: Fix possible null pointer dereference

Auto entries are showing garbage for the version in print_status()
because StrDuplicate does not expect null pointers.

diff --git a/src/boot/efi/boot.c b/src/boot/efi/boot.c
index d0a3bce159d6eefe1f9b7eabaa94f32be5e20d97..54d704f0d13629e8cf66681f2b67ab3a11d1c1a0 100644 (file)
--- a/src/boot/efi/boot.c
+++ b/src/boot/efi/boot.c
@@ -1722,7 +1722,7 @@ static ConfigEntry *config_entry_add_loader(
         *entry = (ConfigEntry) {
                 .type = type,
                 .title = StrDuplicate(title),
-                .version = StrDuplicate(version),
+                .version = version ? StrDuplicate(version) : NULL,
                 .device = device,
                 .loader = StrDuplicate(loader),
                 .id = StrDuplicate(id),