79 lines
2.2 KiB
Diff
79 lines
2.2 KiB
Diff
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From 777e7c21b7627be80961848ac560cb0a9978ff43 Mon Sep 17 00:00:00 2001
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From: Bram Moolenaar <Bram@vim.org>
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Date: Mon, 25 Oct 2021 17:07:04 +0100
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Subject: [PATCH] patch 8.2.3564: invalid memory access when scrolling without
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valid screen
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Problem: Invalid memory access when scrolling without a valid screen.
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Solution: Do not set VALID_BOTLINE in w_valid.
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---
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src/move.c | 1 -
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src/testdir/test_normal.vim | 22 +++++++++++++++++++---
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2 files changed, 19 insertions(+), 4 deletions(-)
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diff --git a/src/move.c b/src/move.c
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index 8e53d8b..10165ef 100644
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--- a/src/move.c
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+++ b/src/move.c
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@@ -198,7 +198,6 @@ update_topline(void)
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{
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curwin->w_topline = curwin->w_cursor.lnum;
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curwin->w_botline = curwin->w_topline;
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- curwin->w_valid |= VALID_BOTLINE|VALID_BOTLINE_AP;
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curwin->w_scbind_pos = 1;
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return;
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}
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diff --git a/src/testdir/test_normal.vim b/src/testdir/test_normal.vim
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index d45cf41..1f0088a 100644
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--- a/src/testdir/test_normal.vim
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+++ b/src/testdir/test_normal.vim
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@@ -33,14 +33,14 @@ func CountSpaces(type, ...)
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else
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silent exe "normal! `[v`]y"
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endif
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- let g:a=strlen(substitute(@@, '[^ ]', '', 'g'))
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+ let g:a = strlen(substitute(@@, '[^ ]', '', 'g'))
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let &selection = sel_save
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let @@ = reg_save
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endfunc
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func OpfuncDummy(type, ...)
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" for testing operatorfunc
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- let g:opt=&linebreak
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+ let g:opt = &linebreak
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if a:0 " Invoked from Visual mode, use gv command.
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silent exe "normal! gvy"
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@@ -51,7 +51,7 @@ func OpfuncDummy(type, ...)
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endif
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" Create a new dummy window
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new
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- let g:bufnr=bufnr('%')
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+ let g:bufnr = bufnr('%')
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endfunc
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fun! Test_normal00_optrans()
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@@ -2705,3 +2705,19 @@ func Test_normal_gk()
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bw!
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set cpoptions& number& numberwidth&
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endfunc
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+
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+func Test_scroll_in_ex_mode()
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+ " This was using invalid memory because w_botline was invalid.
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+ let lines =<< trim END
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+ diffsplit
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+ norm os00(
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+ call writefile(['done'], 'Xdone')
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+ qa!
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+ END
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+ call writefile(lines, 'Xscript')
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+ call assert_equal(1, RunVim([], [], '--clean -X -Z -e -s -S Xscript'))
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+ call assert_equal(['done'], readfile('Xdone'))
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+
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+ call delete('Xscript')
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+ call delete('Xdone')
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+endfunc
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--
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1.8.3.1
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