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vim-patch:9.0.1857: [security] heap-use-after-free in is_qf_win()

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Problem:  heap-use-after-free in is_qf_win()
Solution: Check buffer is valid before accessing it

fc68299d43

Co-authored-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
zeertzjq
2023-11-17 08:56:41 +08:00
parent 748198f5bf
commit a589156b4d
4 changed files with 38 additions and 13 deletions
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2
src/nvim/main.c
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@@ -698,7 +698,7 @@ void getout(int exitval)
for (const tabpage_T *tp = first_tabpage; tp != NULL; tp = next_tp) {
next_tp = tp->tp_next;
FOR_ALL_WINDOWS_IN_TAB(wp, tp) {
if (wp->w_buffer == NULL) {
if (wp->w_buffer == NULL || !buf_valid(wp->w_buffer)) {
// Autocmd must have close the buffer already, skip.
continue;
}