Mercurial > vim
view src/testdir/test_move.vim @ 35150:42f061099b39 v9.1.0404
patch 9.1.0404: [security] xxd: buffer-overflow with specific flags
Commit: https://github.com/vim/vim/commit/67797191e039196128c69ba1538ccaf2a4711323
Author: Lennard Hofmann <lennard.hofmann@web.de>
Date: Fri May 10 14:17:26 2024 +0200
patch 9.1.0404: [security] xxd: buffer-overflow with specific flags
Problem: [security] xxd: buffer-overflow with specific flags
Solution: Correctly calculate the required buffer space
(Lennard Hofmann)
xxd writes each output line into a global buffer before printing.
The maximum size of that buffer was not calculated correctly.
This command was crashing in AddressSanitizer:
$ xxd -Ralways -g1 -c256 -d -o 9223372036854775808 /etc/passwd
This prints a line of 6680 bytes but the buffer only had room for 6549 bytes.
If the output from "-b" was colored, the line could be even longer.
closes: #14738
Co-authored-by: K.Takata <kentkt@csc.jp>
Signed-off-by: Lennard Hofmann <lennard.hofmann@web.de>
Signed-off-by: Christian Brabandt <cb@256bit.org>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Fri, 10 May 2024 14:45:03 +0200 |
parents | 984969b81d63 |
children |
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" Test the ":move" command. source check.vim source screendump.vim func Test_move() enew! call append(0, ['line 1', 'line 2', 'line 3']) g /^$/ delete _ set nomodified move . call assert_equal(['line 1', 'line 2', 'line 3'], getline(1, 3)) call assert_false(&modified) 1,2move 0 call assert_equal(['line 1', 'line 2', 'line 3'], getline(1, 3)) call assert_false(&modified) 1,3move 3 call assert_equal(['line 1', 'line 2', 'line 3'], getline(1, 3)) call assert_false(&modified) 1move 2 call assert_equal(['line 2', 'line 1', 'line 3'], getline(1, 3)) call assert_true(&modified) set nomodified 3move 0 call assert_equal(['line 3', 'line 2', 'line 1'], getline(1, 3)) call assert_true(&modified) set nomodified 2,3move 0 call assert_equal(['line 2', 'line 1', 'line 3'], getline(1, 3)) call assert_true(&modified) set nomodified call assert_fails('1,2move 1', 'E134:') call assert_fails('2,3move 2', 'E134:') call assert_fails("move -100", 'E16:') call assert_fails("move +100", 'E16:') call assert_fails('move', 'E16:') call assert_fails("move 'r", 'E20:') %bwipeout! endfunc func Test_move_undo() CheckRunVimInTerminal let lines =<< trim END call setline(1, ['First', 'Second', 'Third', 'Fourth']) END call writefile(lines, 'Xtest_move_undo.vim', 'D') let buf = RunVimInTerminal('-S Xtest_move_undo.vim', #{rows: 10, cols: 60, statusoff: 2}) call term_sendkeys(buf, "gg:move +1\<CR>") call VerifyScreenDump(buf, 'Test_move_undo_1', {}) " here the display would show the last few lines scrolled down call term_sendkeys(buf, "u") call term_sendkeys(buf, ":\<Esc>") call VerifyScreenDump(buf, 'Test_move_undo_2', {}) call StopVimInTerminal(buf) endfunc " vim: shiftwidth=2 sts=2 expandtab