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49 lines
1.4 KiB
49 lines
1.4 KiB
From 85b6747abc15a7a81086db31289cf1b8b17e6cb1 Mon Sep 17 00:00:00 2001 |
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From: Bram Moolenaar <Bram@vim.org> |
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Date: Tue, 25 Jan 2022 11:55:02 +0000 |
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Subject: [PATCH] patch 8.2.4214: illegal memory access with large 'tabstop' in |
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Ex mode |
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Problem: Illegal memory access with large 'tabstop' in Ex mode. |
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Solution: Allocate enough memory. |
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--- |
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src/ex_getln.c | 2 +- |
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src/testdir/test_ex_mode.vim | 10 ++++++++++ |
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src/version.c | 2 ++ |
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3 files changed, 13 insertions(+), 1 deletion(-) |
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diff --git a/src/ex_getln.c b/src/ex_getln.c |
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index 5dc43d845..097b97eeb 100644 |
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--- a/src/ex_getln.c |
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+++ b/src/ex_getln.c |
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@@ -1513,7 +1513,7 @@ init_ccline(int firstc, int indent) |
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ccline.cmdindent = (firstc > 0 ? indent : 0); |
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// alloc initial ccline.cmdbuff |
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- alloc_cmdbuff(exmode_active ? 250 : indent + 1); |
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+ alloc_cmdbuff(indent + 50); |
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if (ccline.cmdbuff == NULL) |
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return FAIL; |
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ccline.cmdlen = ccline.cmdpos = 0; |
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diff --git a/src/testdir/test_ex_mode.vim b/src/testdir/test_ex_mode.vim |
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index 7031115fc..2642a16d2 100644 |
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--- a/src/testdir/test_ex_mode.vim |
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+++ b/src/testdir/test_ex_mode.vim |
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@@ -241,4 +241,14 @@ func Test_ex_mode_count_overflow() |
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call delete('Xexmodescript') |
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endfunc |
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+func Test_ex_mode_large_indent() |
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+ new |
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+ set ts=500 ai |
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+ call setline(1, "\t") |
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+ exe "normal gQi\<CR>." |
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+ set ts=8 noai |
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+ bwipe! |
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+endfunc |
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+ |
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+ |
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" vim: shiftwidth=2 sts=2 expandtab |
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-- |
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2.34.1 |
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