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CVE-2022-1851: patch 8.2.5013: after text formatting cursor may be in an invalid pos… · vim/vim@78d5288
Out-of-bounds Read in GitHub repository vim/vim prior to 8.2.
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patch 8.2.5013: after text formatting cursor may be in an invalid pos…
…ition
Problem: After text formatting the cursor may be in an invalid position. Solution: Correct the cursor position after formatting.
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1 parent 53737b5 commit 78d52883e10d71f23ab72a3d8b9733b00da8c9ad
Showing with 17 additions and 0 deletions.
- +12 −0 src/testdir/test_textformat.vim
- +3 −0 src/textformat.c
- +2 −0 src/version.c
@@ -1291,4 +1291,16 @@ func Test_fo_2()
close!
endfunc
" This was leaving the cursor after the end of a line. Complicated way to
" have the problem show up with valgrind.
func Test_correct_cursor_position()
set encoding=iso8859
new
norm a0000
sil! norm gggg0i0gw0gg
bwipe!
set encoding=utf8
endfunc
" vim: shiftwidth=2 sts=2 expandtab
@@ -870,6 +870,9 @@ op_format(
{
curwin->w_cursor = saved_cursor;
saved_cursor.lnum = 0;
// formatting may have made the cursor position invalid
check_cursor();
}
if (oap->is_VIsual)
@@ -734,6 +734,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
5013,
/**/
5012,
/**/
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