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authorBram Moolenaar <Bram@vim.org>2019-02-16 18:07:57 +0100
committerBram Moolenaar <Bram@vim.org>2019-02-16 18:07:57 +0100
commit8bfd9469cef536f171e6666f9d9217192e09d161 (patch)
tree1f5b859c8c2b118440a067103edf130120300ca3
parent985079c514e9ab85598b7bca019c77d3e42526f5 (diff)
downloadvim-git-8bfd9469cef536f171e6666f9d9217192e09d161.tar.gz
patch 8.1.0935: old regexp engine may use invalid bufferv8.1.0935
Problem: Old regexp engine may use invalid buffer for 'iskeyword' or uninitialized buffer pointer. (Kuang-che Wu) Solution: Set rex.reg_buf when compiling the pattern. (closes #3972)
-rw-r--r--src/regexp.c2
-rw-r--r--src/testdir/test_regexp_latin.vim16
-rw-r--r--src/version.c2
3 files changed, 20 insertions, 0 deletions
diff --git a/src/regexp.c b/src/regexp.c
index 30a604b23..836204895 100644
--- a/src/regexp.c
+++ b/src/regexp.c
@@ -7998,6 +7998,8 @@ vim_regcomp(char_u *expr_arg, int re_flags)
bt_regengine.expr = expr;
nfa_regengine.expr = expr;
#endif
+ // reg_iswordc() uses rex.reg_buf
+ rex.reg_buf = curbuf;
/*
* First try the NFA engine, unless backtracking was requested.
diff --git a/src/testdir/test_regexp_latin.vim b/src/testdir/test_regexp_latin.vim
index 09104a142..d63b4f958 100644
--- a/src/testdir/test_regexp_latin.vim
+++ b/src/testdir/test_regexp_latin.vim
@@ -104,3 +104,19 @@ func Test_get_equi_class()
s/^/[[=
call assert_equal(1, search(getline(1)))
endfunc
+
+func Test_rex_init()
+ set noincsearch
+ set re=1
+ new
+ setlocal iskeyword=a-z
+ call setline(1, ['abc', 'ABC'])
+ call assert_equal(1, search('[[:keyword:]]'))
+ new
+ setlocal iskeyword=A-Z
+ call setline(1, ['abc', 'ABC'])
+ call assert_equal(2, search('[[:keyword:]]'))
+ bwipe!
+ bwipe!
+ set re=0
+endfunc
diff --git a/src/version.c b/src/version.c
index dbf408341..8dd86f0b0 100644
--- a/src/version.c
+++ b/src/version.c
@@ -780,6 +780,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
+ 935,
+/**/
934,
/**/
933,