Mercurial > vim
view src/testdir/test_shift.vim @ 33863:3b8089d550eb v9.0.2141
patch 9.0.2141: [security]: buffer-overflow in suggest_trie_walk
Commit: https://github.com/vim/vim/commit/0fb375aae608d7306b4baf9c1f906961f32e2abf
Author: Christian Brabandt <cb@256bit.org>
Date: Wed Nov 29 10:23:39 2023 +0100
patch 9.0.2141: [security]: buffer-overflow in suggest_trie_walk
Problem: [security]: buffer-overflow in suggest_trie_walk
Solution: Check n before using it as index into byts array
Basically, n as an index into the byts array, can point to beyond the byts
array. So let's double check, that n is within the expected range after
incrementing it from sp->ts_curi and bail out if it would be invalid.
Reported by @henices, thanks!
Signed-off-by: Christian Brabandt <cb@256bit.org>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Sun, 10 Dec 2023 15:16:03 +0100 |
parents | 08940efa6b4e |
children |
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line source
" Test shifting lines with :> and :< source check.vim func Test_ex_shift_right() set shiftwidth=2 " shift right current line. call setline(1, range(1, 5)) 2 > 3 >> call assert_equal(['1', \ ' 2', \ ' 3', \ '4', \ '5'], getline(1, '$')) " shift right with range. call setline(1, range(1, 4)) 2,3>> call assert_equal(['1', \ ' 2', \ ' 3', \ '4', \ '5'], getline(1, '$')) " shift right with range and count. call setline(1, range(1, 4)) 2>3 call assert_equal(['1', \ ' 2', \ ' 3', \ ' 4', \ '5'], getline(1, '$')) bw! set shiftwidth& endfunc func Test_ex_shift_left() set shiftwidth=2 call setline(1, range(1, 5)) %>>> " left shift current line. 2< 3<< 4<<<<< call assert_equal([' 1', \ ' 2', \ ' 3', \ '4', \ ' 5'], getline(1, '$')) " shift right with range. call setline(1, range(1, 5)) %>>> 2,3<< call assert_equal([' 1', \ ' 2', \ ' 3', \ ' 4', \ ' 5'], getline(1, '$')) " shift right with range and count. call setline(1, range(1, 5)) %>>> 2<<3 call assert_equal([' 1', \ ' 2', \ ' 3', \ ' 4', \ ' 5'], getline(1, '$')) bw! set shiftwidth& endfunc func Test_ex_shift_rightleft() CheckFeature rightleft set shiftwidth=2 rightleft call setline(1, range(1, 4)) 2,3<< call assert_equal(['1', \ ' 2', \ ' 3', \ '4'], getline(1, '$')) 3,4> call assert_equal(['1', \ ' 2', \ ' 3', \ '4'], getline(1, '$')) bw! set rightleft& shiftwidth& endfunc func Test_ex_shift_errors() call assert_fails('><', 'E488:') call assert_fails('<>', 'E488:') call assert_fails('>!', 'E477:') call assert_fails('<!', 'E477:') call assert_fails('2,1>', 'E493:') call assert_fails('2,1<', 'E493:') endfunc " vim: shiftwidth=2 sts=2 expandtab