Mercurial > vim
view .gitignore @ 34309:d7cfd8fb1d75 v9.1.0089
patch 9.1.0089: qsort() comparison functions should be transitive
Commit: https://github.com/vim/vim/commit/e06e43766500ecb4cd1031fa16cf9cbebdb222c1
Author: Christian Brabandt <cb@256bit.org>
Date: Fri Feb 9 19:39:14 2024 +0100
patch 9.1.0089: qsort() comparison functions should be transitive
Problem: qsort() comparison functions should be transitive
Solution: Do not subtract values, but rather use explicit comparisons
Improve qsort() comparison functions
There has been a recent report on qsort() causing out-of-bounds read &
write in glibc for non transitive comparison functions
https://www.qualys.com/2024/01/30/qsort.txt
Even so the bug is in glibc's implementation of the qsort() algorithm,
it's bad style to just use substraction for the comparison functions,
which may cause overflow issues and as hinted at in OpenBSD's manual
page for qsort(): "It is almost always an error to use subtraction to
compute the return value of the comparison function."
So check the qsort() comparison functions and change them to be safe.
closes: #13980
Signed-off-by: Christian Brabandt <cb@256bit.org>
| author | Christian Brabandt <cb@256bit.org> |
|---|---|
| date | Fri, 09 Feb 2024 19:45:06 +0100 |
| parents | 7aeaf20e2ba5 |
| children | 776cb5c73d6f |
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# Unixen: object and executable files. *.o src/vim src/xxd/xxd src/auto/if_perl.c src/auto/gui_gtk_gresources.c src/auto/gui_gtk_gresources.h src/auto/os_haiku.rdef src/objects/.dirstamp src/objects src/types.vim # We do need src/auto/configure. src/auto/config.cache src/auto/config.h src/auto/config.log src/auto/config.mk src/auto/config.status src/auto/osdef.h src/auto/link.log src/auto/link.sed src/auto/pathdef.c # Windows *.exe *.idb *.exp *.map *.obj *.pdb *.ilk *.sln *.suo *.res *.RES vim*.dll vim*.lib src/dobj*/pathdef.c src/gobj*/pathdef.c src/obj*/pathdef.c src/Obj*/pathdef.c gvimext.dll gvimext.lib gvim.lib runtime/doc/uganda.nsis.txt nsis/icons/* /vim90/ .vscode/ # NetBeans nbproject/* # Mac OSX src/xxd/xxd.dSYM .DS_Store # All platforms *.rej *.orig *.mo *.swp *~ *.pyc *.log src/po/vim.pot src/tags /tags /GPATH /GTAGS /GRTAGS nsis/tags # Generated by "make test" src/po/*.ck src/po/*.desktop src/testdir/mbyte.vim src/testdir/mzscheme.vim src/testdir/lua.vim src/testdir/small.vim src/testdir/tiny.vim src/testdir/test*.out src/testdir/test*.failed src/testdir/test.log src/testdir/dostmp/* src/testdir/messages src/testdir/viminfo src/testdir/opt_test.vim src/testdir/failed src/testdir/starttime runtime/indent/testdir/*.out runtime/indent/testdir/*.fail src/memfile_test src/json_test src/message_test src/kword_test # Generated by "make install" runtime/doc/doctags # Generated by "make shadow". The directory names could be anything but we # restrict them to shadow (the default) or shadow-* src/shadow src/shadow-* src/runtime src/pixmaps # other files possibly created by tools src/cscope.out # Linter/language server files /.cache/clangd/ /.ccls-cache/ /compile_commands.json