Author: markj
Date: Sun Feb 17 19:48:23 2013
New Revision: 246917
URL: http://svnweb.freebsd.org/changeset/base/246917
Log:
Strengthen the check in IS_OUT_OF_BOUNDS to ensure that (j - 1) is a
valid index into the input buffer.
PR: bin/175213
Reviewed by: gabor
Approved by: emaste (co-mentor)
MFC after: 1 week
Modified:
head/usr.bin/grep/regex/tre-fastmatch.c
Modified: head/usr.bin/grep/regex/tre-fastmatch.c
==============================================================================
--- head/usr.bin/grep/regex/tre-fastmatch.c Sun Feb 17 18:42:30 2013
(r246916)
+++ head/usr.bin/grep/regex/tre-fastmatch.c Sun Feb 17 19:48:23 2013
(r246917)
@@ -103,7 +103,7 @@ static int fastcmp(const fastmatch_t *fg
((!fg->reversed \
? ((type == STR_WIDE) ? ((j + fg->wlen) > len) \
: ((j + fg->len) > len)) \
- : (j < 0)))
+ : (j <= 0)))
/*
* Checks whether the new position after shifting in the input string
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