Module Name:    src
Committed By:   rin
Date:           Fri Nov 10 14:35:25 UTC 2017

Modified Files:
        src/external/bsd/nvi/dist/common: vi_db1.c
        src/external/bsd/nvi/dist/ex: ex.c

Log Message:
PR bin/52716 fix buffer overrun found by libasan


To generate a diff of this commit:
cvs rdiff -u -r1.8 -r1.9 src/external/bsd/nvi/dist/common/vi_db1.c
cvs rdiff -u -r1.4 -r1.5 src/external/bsd/nvi/dist/ex/ex.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/external/bsd/nvi/dist/common/vi_db1.c
diff -u src/external/bsd/nvi/dist/common/vi_db1.c:1.8 src/external/bsd/nvi/dist/common/vi_db1.c:1.9
--- src/external/bsd/nvi/dist/common/vi_db1.c:1.8	Sat Nov 28 13:20:03 2015
+++ src/external/bsd/nvi/dist/common/vi_db1.c	Fri Nov 10 14:35:25 2017
@@ -15,7 +15,7 @@
 static const char sccsid[] = "Id: db1.c,v 10.1 2002/03/09 12:53:57 skimo Exp  (Berkeley) Date: 2002/03/09 12:53:57 ";
 #endif /* not lint */
 #else
-__RCSID("$NetBSD: vi_db1.c,v 1.8 2015/11/28 13:20:03 christos Exp $");
+__RCSID("$NetBSD: vi_db1.c,v 1.9 2017/11/10 14:35:25 rin Exp $");
 #endif
 
 #include <sys/types.h>
@@ -184,7 +184,7 @@ err3:		if (lenp != NULL)
 			nlen = data.size;
 			goto retry;
 		} else
-			memcpy(sp->c_lp, data.data, nlen);
+			memcpy(sp->c_lp, data.data, data.size);
 	}
 
 	if (FILE2INT(sp, data.data, data.size, wp, wlen)) {

Index: src/external/bsd/nvi/dist/ex/ex.c
diff -u src/external/bsd/nvi/dist/ex/ex.c:1.4 src/external/bsd/nvi/dist/ex/ex.c:1.5
--- src/external/bsd/nvi/dist/ex/ex.c:1.4	Sun Jan 26 21:43:45 2014
+++ src/external/bsd/nvi/dist/ex/ex.c	Fri Nov 10 14:35:25 2017
@@ -1,4 +1,4 @@
-/*	$NetBSD: ex.c,v 1.4 2014/01/26 21:43:45 christos Exp $ */
+/*	$NetBSD: ex.c,v 1.5 2017/11/10 14:35:25 rin Exp $ */
 /*-
  * Copyright (c) 1992, 1993, 1994
  *	The Regents of the University of California.  All rights reserved.
@@ -16,7 +16,7 @@
 static const char sccsid[] = "Id: ex.c,v 10.75 2004/03/16 14:13:35 skimo Exp  (Berkeley) Date: 2004/03/16 14:13:35 ";
 #endif /* not lint */
 #else
-__RCSID("$NetBSD: ex.c,v 1.4 2014/01/26 21:43:45 christos Exp $");
+__RCSID("$NetBSD: ex.c,v 1.5 2017/11/10 14:35:25 rin Exp $");
 #endif
 
 #include <sys/types.h>
@@ -2259,7 +2259,7 @@ ex_comm_search(SCR *sp, CHAR_T *name, si
 			return (NULL);
 		if (cp->name[0] != name[0])
 			continue;
-		if (!MEMCMP(name, cp->name, len))
+		if (STRLEN(cp->name) >= len && !MEMCMP(name, cp->name, len))
 			return (cp);
 	}
 	return (NULL);

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