Mercurial > vim
changeset 27380:7c07681f8a05 v8.2.4218
patch 8.2.4218: illegal memory access with bracketed paste in Ex mode
Commit: https://github.com/vim/vim/commit/806d037671e133bd28a7864248763f643967973a
Author: Bram Moolenaar <Bram@vim.org>
Date: Tue Jan 25 20:45:16 2022 +0000
patch 8.2.4218: illegal memory access with bracketed paste in Ex mode
Problem: Illegal memory access with bracketed paste in Ex mode.
Solution: Reserve space for the trailing NUL.
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Tue, 25 Jan 2022 22:00:04 +0100 |
| parents | 98292ddfcc61 |
| children | c4d24fdb7fe5 |
| files | src/edit.c src/testdir/test_paste.vim src/version.c |
| diffstat | 3 files changed, 7 insertions(+), 1 deletions(-) [+] |
line wrap: on
line diff
--- a/src/edit.c +++ b/src/edit.c @@ -4452,7 +4452,8 @@ bracketed_paste(paste_mode_T mode, int d break; case PASTE_EX: - if (gap != NULL && ga_grow(gap, idx) == OK) + // add one for the NUL that is going to be appended + if (gap != NULL && ga_grow(gap, idx + 1) == OK) { mch_memmove((char *)gap->ga_data + gap->ga_len, buf, (size_t)idx);
--- a/src/testdir/test_paste.vim +++ b/src/testdir/test_paste.vim @@ -90,6 +90,9 @@ func Test_paste_ex_mode() unlet! foo call feedkeys("Qlet foo=\"\<Esc>[200~foo\<CR>bar\<Esc>[201~\"\<CR>vi\<CR>", 'xt') call assert_equal("foo\rbar", foo) + + " pasting more than 40 bytes + exe "norm Q\<PasteStart>0000000000000000000000000000000000000000000000000000000000000000000000\<C-C>" endfunc func Test_paste_onechar()