From 8bf9fcf48853021ac713d7675b89143e4e8b1ce5 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Mon, 2 Dec 2013 23:10:28 +0100
Subject: [PATCH 1/1] core: extra paranoia when deserializing kdbus fd

---
 src/core/manager.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/manager.c b/src/core/manager.c
index badf19e95..19493861e 100644
--- a/src/core/manager.c
+++ b/src/core/manager.c
@@ -2172,7 +2172,7 @@ int manager_deserialize(Manager *m, FILE *f, FDSet *fds) {
                 } else if (startswith(l, "kdbus-fd=")) {
                         int fd;
 
-                        if (safe_atoi(l + 9, &fd) < 0 || !fdset_contains(fds, fd))
+                        if (safe_atoi(l + 9, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
                                 log_debug("Failed to parse kdbus fd: %s", l + 9);
                         else {
                                 if (m->kdbus_fd >= 0)
-- 
2.30.2