bus-unit-util: do not trigger assertion on "ExecStart=@"

extract_first_word() normalizes empty string to NULL, triggering the assertion on input string in strv_split_full().
2025-05-07 18:32:18 +02:00
parent 72758ef117
commit 91d5fad9fb
1 changed files with 4 additions and 0 deletions
@@ -354,6 +354,10 @@ static int bus_append_exec_command(sd_bus_message *m, const char *field, const c
                r = extract_first_word(&eq, &path, NULL, EXTRACT_UNQUOTE|EXTRACT_CUNESCAPE);
                if (r < 0)
                        return log_error_errno(r, "Failed to parse path: %m");
+                if (r == 0)
+                        return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "No executable path specified, refusing.");
+                if (isempty(eq))
+                        return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Got empty command line, refusing.");
        }

        r = strv_split_full(&l, eq, NULL, EXTRACT_UNQUOTE|EXTRACT_CUNESCAPE);