From 7a99da43d14671cc91a302bcfa34d37a35eaa28d Mon Sep 17 00:00:00 2001 From: Bram Moolenaar Date: Sun, 28 Aug 2022 22:21:01 +0100 Subject: patch 9.0.0309: invalid memory access when cmdheight is zero Problem: Invalid memory access when cmdheight is zero. Solution: Check index in w_lines is smaller than Rows. --- src/drawscreen.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'src/drawscreen.c') diff --git a/src/drawscreen.c b/src/drawscreen.c index de091e81d8..aa5b8f7eb7 100644 --- a/src/drawscreen.c +++ b/src/drawscreen.c @@ -830,6 +830,9 @@ after_updating_screen(int may_resize_shell UNUSED) // handle the drop now. handle_any_postponed_drop(); #endif + + // in case it was changed in dont_use_message_window() + cmdline_row = Rows - p_ch; } /* @@ -2426,7 +2429,8 @@ win_update(win_T *wp) if (wp->w_lines_valid > wp->w_height) wp->w_lines_valid = wp->w_height; for (i = wp->w_lines_valid; i - j >= idx; --i) - wp->w_lines[i] = wp->w_lines[i - j]; + if (i < Rows) + wp->w_lines[i] = wp->w_lines[i - j]; // The w_lines[] entries for inserted lines are // now invalid, but wl_size may be used above. -- cgit v1.2.3