core: fix crash in BPFProgram parsing

Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33270.
2021-05-05 17:15:04 +02:00
parent 07b3075fad
commit 3968ccd0cd
2 changed files with 1 additions and 1 deletions
@@ -5600,7 +5600,7 @@ int config_parse_bpf_foreign_program(
        r = extract_first_word(&rvalue, &word, ":", 0);
        if (r == -ENOMEM)
                return log_oom();
-        if (r <= 0) {
+        if (r <= 0 || isempty(rvalue)) {
                log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse foreign BPF program, ignoring: %s", rvalue);
                return 0;
        }