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vim-patch:8.2.4281: using freed memory with :lopen and :bwipe

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Problem:    Using freed memory with :lopen and :bwipe.
Solution:   Do not use a wiped out buffer.
9b4a80a665

Cherry-pick some indent changes from patch 8.2.1432.
This commit is contained in:
zeertzjq
2022-03-24 12:29:26 +08:00
parent 9530c2d6d8
commit 19bbc43947
2 changed files with 106 additions and 82 deletions
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11
src/nvim/buffer.c
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@@ -1486,8 +1486,15 @@ void set_curbuf(buf_T *buf, int action)
// An autocommand may have deleted "buf", already entered it (e.g., when
// it did ":bunload") or aborted the script processing!
// If curwin->w_buffer is null, enter_buffer() will make it valid again
if ((buf_valid(buf) && buf != curbuf && !aborting()) || curwin->w_buffer == NULL) {
enter_buffer(buf);
bool valid = buf_valid(buf);
if ((valid && buf != curbuf && !aborting()) || curwin->w_buffer == NULL) {
// If the buffer is not valid but curwin->w_buffer is NULL we must
// enter some buffer. Using the last one is hopefully OK.
if (!valid) {
enter_buffer(lastbuf);
} else {
enter_buffer(buf);
}
if (old_tw != curbuf->b_p_tw) {
check_colorcolumn(curwin);
}