sd-daemon: verify NOTIFY_SOCKET path length

Better generate a real error then simply connect to the wrong socket.
ssahani · Nov 3, 2015 · cb086d5 · cb086d5
1 parent 3038389
commit cb086d5
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/src/libsystemd/sd-daemon/sd-daemon.c b/src/libsystemd/sd-daemon/sd-daemon.c
@@ -436,6 +436,11 @@ _public_ int sd_pid_notify_with_fds(pid_t pid, int unset_environment, const char
                 goto finish;
         }
 
+        if (strlen(e) > sizeof(sockaddr.un.sun_path)) {
+                r = -EINVAL;
+                goto finish;
+        }
+
         fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0);
         if (fd < 0) {
                 r = -errno;