Mercurial > vim
diff src/memline.c @ 27453:c7f614c9ceb3 v8.2.4255
patch 8.2.4255: theoretical computation overflow
Commit: https://github.com/vim/vim/commit/d5cec1f1f055316c353cfa15ad8d5eb0952d50a0
Author: =?UTF-8?q?Dundar=20G=C3=B6c?= <gocdundar@gmail.com>
Date: Sat Jan 29 15:19:23 2022 +0000
patch 8.2.4255: theoretical computation overflow
Problem: Theoretical computation overflow.
Solution: Perform multiplication in a wider type. (closes https://github.com/vim/vim/issues/9657)
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Sat, 29 Jan 2022 16:30:03 +0100 |
| parents | 41e0dcf38521 |
| children | 2d24aad37e60 |
line wrap: on
line diff
--- a/src/memline.c +++ b/src/memline.c @@ -5778,7 +5778,7 @@ ml_find_line_or_offset(buf_T *buf, linen && lnum >= curline + buf->b_ml.ml_chunksize[curix].mlcs_numlines) || (offset != 0 && offset > size + buf->b_ml.ml_chunksize[curix].mlcs_totalsize - + ffdos * buf->b_ml.ml_chunksize[curix].mlcs_numlines))) + + (long)ffdos * buf->b_ml.ml_chunksize[curix].mlcs_numlines))) { curline += buf->b_ml.ml_chunksize[curix].mlcs_numlines; size += buf->b_ml.ml_chunksize[curix].mlcs_totalsize;