Mercurial > vim
view src/testdir/test_wnext.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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" Test :wnext :wNext and :wprevious func Test_wnext() args X1 X2 call setline(1, '1') wnext call assert_equal(['1'], readfile('X1')) call assert_equal('X2', bufname('%')) call setline(1, '2') call assert_fails('wnext', 'E165:') call assert_equal(['2'], readfile('X2')) call assert_equal('X2', bufname('%')) " Test :wnext with a single file. args X1 call assert_equal('X1', bufname('%')) call assert_fails('wnext', 'E163:') " Test :wnext with a count. args X1 X2 X3 call assert_equal('X1', bufname('%')) 2wnext call assert_equal('X3', bufname('%')) " Test :wnext {file}. args X1 X2 X3 wnext X4 call assert_equal(['1'], readfile('X4')) call assert_equal('X2', bufname('%')) call assert_fails('wnext X4', 'E13:') call assert_equal(['1'], readfile('X4')) wnext! X4 call assert_equal(['2'], readfile('X4')) call assert_equal('X3', bufname('%')) args X1 X2 " Commented out as, E13 occurs on Windows instead of E17 "call assert_fails('wnext .', 'E17:') call assert_fails('wnext! .', 'E502:') %bwipe! call delete('X1') call delete('X2') call delete('X3') call delete('X4') endfunc func Test_wprevious() args X1 X2 next call assert_equal('X2', bufname('%')) call setline(1, '2') wprevious call assert_equal(['2'], readfile('X2')) call assert_equal('X1', bufname('%')) call setline(1, '1') call assert_fails('wprevious', 'E164:') call assert_fails('wNext', 'E164:') " Test :wprevious with a single file. args X1 call assert_fails('wprevious', 'E163:') call assert_fails('wNext', 'E163:') " Test :wprevious with a count. args X1 X2 X3 2next call setline(1, '3') call assert_equal('X3', bufname('%')) 2wprevious call assert_equal('X1', bufname('%')) call assert_equal(['3'], readfile('X3')) " Test :wprevious {file} args X1 X2 X3 2next call assert_equal('X3', bufname('%')) wprevious X4 call assert_equal(['3'], readfile('X4')) call assert_equal('X2', bufname('%')) call assert_fails('wprevious X4', 'E13:') call assert_equal(['3'], readfile('X4')) wprevious! X4 call assert_equal(['2'], readfile('X4')) call assert_equal('X1', bufname('%')) args X1 X2 " Commented out as, E13 occurs on Windows instead of E17 "call assert_fails('wprevious .', 'E17:') call assert_fails('wprevious! .', 'E502:') %bwipe! call delete('X1') call delete('X2') call delete('X3') call delete('X4') endfunc " vim: shiftwidth=2 sts=2 expandtab