X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Ftimesync%2Ftimesyncd-manager.c;h=bc35662481fb5d4b958cc929666c72a3e71ca5f9;hp=117ea8c98d83c495edb043e566951a5a7f25603f;hb=43fcd650e5cb0836cfc9f667ed74b3bc0283a81c;hpb=50efadb0ae7bcb4fc5ce5e41163c697501ca1d50

diff --git a/src/timesync/timesyncd-manager.c b/src/timesync/timesyncd-manager.c
index 117ea8c98..bc3566248 100644
--- a/src/timesync/timesyncd-manager.c
+++ b/src/timesync/timesyncd-manager.c
@@ -525,7 +525,8 @@ static int manager_receive_response(sd_event_source *source, int fd, uint32_t re
                 return manager_connect(m);
         }
 
-        if (iov.iov_len < sizeof(struct ntp_msg)) {
+        /* Too short or too long packet? */
+        if (iov.iov_len < sizeof(struct ntp_msg) || (msghdr.msg_flags & MSG_TRUNC)) {
                 log_warning("Invalid response from server. Disconnecting.");
                 return manager_connect(m);
         }