From 4fcd8cea7ee1594c25b9e7eec42ae3ce6775d93a Mon Sep 17 00:00:00 2001 From: Greg Hudson Date: Fri, 25 Jan 2013 13:11:27 -0500 Subject: [PATCH] Check for negative poll timeout in k5_sendto_kdc (cherry picked from commit 74bee54227deb64a41c2e79f57dd2a2c5ea010a3) ticket: 7578 (new) version_fixed: 1.10.4 status: resolved --- src/lib/krb5/os/sendto_kdc.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/src/lib/krb5/os/sendto_kdc.c b/src/lib/krb5/os/sendto_kdc.c index 63dbcd8f41..7ee5951301 100644 --- a/src/lib/krb5/os/sendto_kdc.c +++ b/src/lib/krb5/os/sendto_kdc.c @@ -523,6 +523,10 @@ cm_select_or_poll(const struct select_state *in, struct select_state *out, return e; timeout = (in->end_time.tv_sec - now.tv_sec) * 1000 + (in->end_time.tv_usec - now.tv_usec) / 1000; + if (timeout < 0) { + *sret = 0; + return 0; + } } /* We don't need a separate copy of the selstate for poll, but use one * anyone for consistency with the select wrapper. */ -- 2.47.2