core: fix potential crash in BPFProgram=

diff --git a/src/core/load-fragment.c b/src/core/load-fragment.c
index cbc85d9695f2fd6b903aff4da5634bceee323a9b..c09627e5b0daf35ca1910d009da336f2b704d051 100644 (file)
--- a/src/core/load-fragment.c
+++ b/src/core/load-fragment.c
@@ -5630,7 +5630,7 @@ 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) {
                 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse foreign BPF program, ignoring: %s", rvalue);
                 return 0;
         }