From: Nickolai Zeldovich <nickolai@csail.mit.edu>
Date: Sun, 6 Jan 2013 04:45:46 +0000 (-0500)
Subject: lwp/iomgr.c: avoid off-by-one out-of-bounds access
X-Git-Tag: upstream/1.8.0_pre1^2~1673
X-Git-Url: https://git.michaelhowe.org/gitweb/?a=commitdiff_plain;h=bd850e5b980d34236ee98d16b9717860b63af306;p=packages%2Fo%2Fopenafs.git

lwp/iomgr.c: avoid off-by-one out-of-bounds access

Avoid accessing sigDelivered[NSIG] and sigEvents[NSIG], which are
out-of-bounds by one.

Change-Id: Id6a1798cba901987b8103f287e0869b31040b45b
Reviewed-on: http://gerrit.openafs.org/8883
Reviewed-by: Derrick Brashear <shadow@your-file-system.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>
Tested-by: BuildBot <buildbot@rampaginggeek.com>
---

diff --git a/src/lwp/iomgr.c b/src/lwp/iomgr.c
index 64e9f9c6b..b7dd1c2b5 100644
--- a/src/lwp/iomgr.c
+++ b/src/lwp/iomgr.c
@@ -672,7 +672,7 @@ static int SignalSignals (void)
 	sigProc[i] = 0;
     }
 
-    for (i = 1; i <= NSIG; ++i)  /* forall !badsig(i) */
+    for (i = 1; i < NSIG; ++i)  /* forall !badsig(i) */
 	if ((sigsHandled & mysigmask(i)) && sigDelivered[i] == TRUE) {
 	    sigDelivered[i] = FALSE;
 	    LWP_NoYieldSignal (sigEvents[i]);