From: Bram Moolenaar <Bram@vim.org>
Date: Sun, 26 Feb 2017 14:27:23 +0000 (+0100)
Subject: patch 8.0.0376: size computations in spell file reading are off
X-Git-Tag: v8.0.0376
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=6d3c8586fc81b022e9f06c611b9926108fb878c7;p=vim

patch 8.0.0376: size computations in spell file reading are off

Problem:    Size computations in spell file reading are not exactly right.
Solution:   Make "len" a "long" and check with LONG_MAX.
---

diff --git a/src/spellfile.c b/src/spellfile.c
index 8b1a3a633..00ef019a6 100644
--- a/src/spellfile.c
+++ b/src/spellfile.c
@@ -1585,7 +1585,7 @@ spell_read_tree(
     int		prefixtree,	/* TRUE for the prefix tree */
     int		prefixcnt)	/* when "prefixtree" is TRUE: prefix count */
 {
-    int		len;
+    long	len;
     int		idx;
     char_u	*bp;
     idx_T	*ip;
@@ -1595,7 +1595,7 @@ spell_read_tree(
     len = get4c(fd);
     if (len < 0)
 	return SP_TRUNCERROR;
-    if (len >= 0x3ffffff)
+    if (len >= LONG_MAX / (long)sizeof(int))
 	/* Invalid length, multiply with sizeof(int) would overflow. */
 	return SP_FORMERROR;
     if (len > 0)
diff --git a/src/version.c b/src/version.c
index 58ece754d..8d1454197 100644
--- a/src/version.c
+++ b/src/version.c
@@ -764,6 +764,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    376,
 /**/
     375,
 /**/