X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fbasic%2Ftime-util.c;h=6a76b655120d9bd73672e1ba095176dcec4553b0;hb=a61ff8a1eea921800d6225ff137b24e0a0fb60e1;hp=265f5995a2e1b21e145c71a424f8ddb2a284a9c0;hpb=f082899f180431f04553e4ee3b0968020ef59188;p=elogind.git

diff --git a/src/basic/time-util.c b/src/basic/time-util.c
index 265f5995a..6a76b6551 100644
--- a/src/basic/time-util.c
+++ b/src/basic/time-util.c
@@ -857,6 +857,8 @@ from_tm:
                 return -EINVAL;
 
 finish:
+        if (ret + plus < ret) /* overflow? */
+                return -EINVAL;
         ret += plus;
         if (ret > USEC_TIMESTAMP_FORMATTABLE_MAX)
                 return -EINVAL;