From: Vern Paxson <vern@ee.lbl.gov>
Date: Thu, 28 Mar 1991 12:01:38 +0000 (+0000)
Subject: Fixed out-of-bounds access bug; patch #7 for release 2.3
X-Git-Tag: flex-2-5-5b~468
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=7fc51ed2881c2ea8cc98dca38723a3e33927e183;p=flex

Fixed out-of-bounds access bug; patch #7 for release 2.3
---

diff --git a/gen.c b/gen.c
index fe5c562..83674c4 100644
--- a/gen.c
+++ b/gen.c
@@ -772,7 +772,6 @@ void gentabs()
 	/* set up accepting structures for the End Of Buffer state */
 	EOB_accepting_list[0] = 0;
 	EOB_accepting_list[1] = end_of_buffer_action;
-	rule_type[end_of_buffer_action] = RULE_NORMAL;
 	accsiz[end_of_buffer_state] = 1;
 	dfaacc[end_of_buffer_state].dfaacc_set = EOB_accepting_list;
 
@@ -800,7 +799,7 @@ void gentabs()
 
 		    if ( variable_trailing_context_rules &&
 			 ! (accnum & YY_TRAILING_HEAD_MASK) &&
-			 accnum > 0 &&
+			 accnum > 0 && accnum <= num_rules &&
 			 rule_type[accnum] == RULE_VARIABLE )
 			{
 			/* special hack to flag accepting number as part