basic/fileio: fix memleak when discarding an invalid variable

Fixes #5405.

diff --git a/src/basic/fileio.c b/src/basic/fileio.c
index eadc8b7ea0f31c880996bdb3a375664a64126702..5cf33b48bb0cbaab5c415767916ca9ab254ef864 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;
         }