basic/fileio: fix memleak when discarding an invalid variable

Fixes #5405.

diff --git a/src/basic/fileio.c b/src/basic/fileio.c
index b9a9f748928058dbe30b99f06ad8346996c9791c..13c03b4f5591f5514ca564b6e6b8f9df4ce881df 100644 (file)
--- a/src/basic/fileio.c
+++ b/src/basic/fileio.c
@@ -780,6 +780,7 @@ static int merge_env_file_push(
 
         if (!env_name_is_valid(key)) {
                 log_error("%s:%u: invalid variable name \"%s\", ignoring.", strna(filename), line, key);
+                free(value);
                 return 0;
         }