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| author | Sean Dewar <seandewar@users.noreply.github.com> | 2022-02-12 21:20:29 +0000 |
|---|---|---|
| committer | Sean Dewar <seandewar@users.noreply.github.com> | 2022-02-12 21:23:06 +0000 |
| commit | 700af0ab1d8e85f1f191f4b97f3dda456b5a9551 (patch) | |
| tree | 2ac3ca952d19e0767c2c69d0e9cdcf6712b88ed2 /src | |
| parent | 1b0d6bcd53291d9a9d3e1252976bd22564db4fe5 (diff) | |
| download | rneovim-700af0ab1d8e85f1f191f4b97f3dda456b5a9551.tar.gz rneovim-700af0ab1d8e85f1f191f4b97f3dda456b5a9551.tar.bz2 rneovim-700af0ab1d8e85f1f191f4b97f3dda456b5a9551.zip | |
vim-patch:8.2.4362: :retab may allocate too much memory
Problem: :retab may allocate too much memory.
Solution: Bail out when allocating more than MAXCOL bytes.
https://github.com/vim/vim/commit/33f3c5985491032d5bdfc30e722e85d5a0285e64
Diffstat (limited to 'src')
| -rw-r--r-- | src/nvim/ex_cmds.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/nvim/ex_cmds.c b/src/nvim/ex_cmds.c index f6ef259dbd..306da0ec68 100644 --- a/src/nvim/ex_cmds.c +++ b/src/nvim/ex_cmds.c @@ -814,7 +814,11 @@ void ex_retab(exarg_T *eap) // len is actual number of white characters used len = num_spaces + num_tabs; old_len = (long)STRLEN(ptr); - long new_len = old_len - col + start_col + len + 1; + const long new_len = old_len - col + start_col + len + 1; + if (new_len >= MAXCOL) { + emsg(_(e_resulting_text_too_long)); + break; + } new_line = xmalloc(new_len); if (start_col > 0) { |