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patch 8.1.0934: invalid memory access in search pattern

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Problem:    Invalid memory access in search pattern. (Kuang-che Wu)
Solution:   Check for incomplete equivalence class. (closes #3970)
This commit is contained in:
Bram Moolenaar 2019-02-16 17:07:47 +01:00
parent 6982f42f33
commit 985079c514
3 changed files with 10 additions and 1 deletions
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2
src/regexp.c
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@ -730,7 +730,7 @@ get_equi_class(char_u **pp)
int l = 1;
char_u *p = *pp;
if (p[1] == '=')
if (p[1] == '=' && p[2] != NUL)
{
if (has_mbyte)
l = (*mb_ptr2len)(p + 2);

7
src/testdir/test_regexp_latin.vim
View File

@ -97,3 +97,10 @@ func Test_out_of_memory()
" This will be slow...
call assert_fails('call search("\\v((n||<)+);")', 'E363:')
endfunc
func Test_get_equi_class()
new
" Incomplete equivalence class caused invalid memory access
s/^/[[=
call assert_equal(1, search(getline(1)))
endfunc

2
src/version.c
View File

@ -779,6 +779,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
934,
/**/
933,
/**/