Mercurial > vim
view src/config.mk.in @ 33815:08f9e1eac4cf v9.0.2123
patch 9.0.2123: Problem with initializing the length of range() lists
Commit: https://github.com/vim/vim/commit/df63da98d8dc284b1c76cfe1b17fa0acbd6094d8
Author: Christian Brabandt <cb@256bit.org>
Date: Thu Nov 23 20:14:28 2023 +0100
patch 9.0.2123: Problem with initializing the length of range() lists
Problem: Problem with initializing the length of range() lists
Solution: Set length explicitly when it shouldn't contain any items
range() may cause a wrong calculation of list length, which may later
then cause a segfault in list_find(). This is usually not a problem,
because range_list_materialize() calculates the length, when it
materializes the list.
In addition, in list_find() when the length of the range was wrongly
initialized, it may seem to be valid, so the check for list index
out-of-bounds will not be true, because it is called before the list is
actually materialized. And so we may eventually try to access a null
pointer, causing a segfault.
So this patch does 3 things:
- In f_range(), when we know that the list should be empty, explicitly
set the list->lv_len value to zero. This should happen, when
start is larger than end (in case the stride is positive) or
end is larger than start when the stride is negative.
This should fix the underlying issue properly. However,
- as a safety measure, let's check that the requested index is not
out of range one more time, after the list has been materialized
and return NULL in case it suddenly is.
- add a few more tests to verify the behaviour.
fixes: #13557
closes: #13563
Co-authored-by: Tim Pope <tpope@github.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
| author | Christian Brabandt <cb@256bit.org> |
|---|---|
| date | Thu, 23 Nov 2023 20:30:07 +0100 |
| parents | 0f2dd0d07071 |
| children | 748a8a413816 |
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# # config.mk.in -- autoconf template for Vim on Unix vim:ts=8:sw=8: # # DO NOT EDIT config.mk!! It will be overwritten by configure. # Edit Makefile and run "make" or run ./configure with other arguments. # # Configure does not edit the makefile directly. This method is not the # standard use of GNU autoconf, but it has two advantages: # a) The user can override every choice made by configure. # b) Modifications to the makefile are not lost when configure is run. # # I hope this is worth being nonstandard. jw. @SET_MAKE@ VIMNAME = @VIMNAME@ EXNAME = @EXNAME@ VIEWNAME = @VIEWNAME@ CC = @CC@ DEFS = @DEFS@ CFLAGS = @CFLAGS@ CPPFLAGS = @CPPFLAGS@ srcdir = @srcdir@ VPATH = @srcdir@ LDFLAGS = @LDFLAGS@ LIBS = @LIBS@ TAGPRG = @TAGPRG@ CPP = @CPP@ CPP_MM = @CPP_MM@ DEPEND_CFLAGS_FILTER = @DEPEND_CFLAGS_FILTER@ LINK_AS_NEEDED = @LINK_AS_NEEDED@ X_CFLAGS = @X_CFLAGS@ X_LIBS_DIR = @X_LIBS@ X_PRE_LIBS = @X_PRE_LIBS@ X_EXTRA_LIBS = @X_EXTRA_LIBS@ X_LIBS = @X_LIB@ XDIFF_OBJS_USED = @XDIFF_OBJS_USED@ LUA_LIBS = @LUA_LIBS@ LUA_SRC = @LUA_SRC@ LUA_OBJ = @LUA_OBJ@ LUA_CFLAGS = @LUA_CFLAGS@ LUA_CFLAGS_EXTRA = @LUA_CFLAGS_EXTRA@ LUA_PRO = @LUA_PRO@ MZSCHEME_LIBS = @MZSCHEME_LIBS@ MZSCHEME_SRC = @MZSCHEME_SRC@ MZSCHEME_OBJ = @MZSCHEME_OBJ@ MZSCHEME_CFLAGS = @MZSCHEME_CFLAGS@ MZSCHEME_PRO = @MZSCHEME_PRO@ MZSCHEME_EXTRA = @MZSCHEME_EXTRA@ MZSCHEME_MZC = @MZSCHEME_MZC@ PERL = @vi_cv_path_perl@ PERLLIB = @vi_cv_perllib@ PERL_XSUBPP = @vi_cv_perl_xsubpp@ PERL_LIBS = @PERL_LIBS@ SHRPENV = @shrpenv@ PERL_SRC = @PERL_SRC@ PERL_OBJ = @PERL_OBJ@ PERL_PRO = @PERL_PRO@ PERL_CFLAGS = @PERL_CFLAGS@ PERL_CFLAGS_EXTRA = @PERL_CFLAGS_EXTRA@ PYTHON_SRC = @PYTHON_SRC@ PYTHON_OBJ = @PYTHON_OBJ@ PYTHON_CFLAGS = @PYTHON_CFLAGS@ PYTHON_CFLAGS_EXTRA = @PYTHON_CFLAGS_EXTRA@ PYTHON_LIBS = @PYTHON_LIBS@ PYTHON3_SRC = @PYTHON3_SRC@ PYTHON3_OBJ = @PYTHON3_OBJ@ PYTHON3_CFLAGS = @PYTHON3_CFLAGS@ PYTHON3_CFLAGS_EXTRA = @PYTHON3_CFLAGS_EXTRA@ PYTHON3_LIBS = @PYTHON3_LIBS@ TCL = @vi_cv_path_tcl@ TCL_SRC = @TCL_SRC@ TCL_OBJ = @TCL_OBJ@ TCL_PRO = @TCL_PRO@ TCL_CFLAGS = @TCL_CFLAGS@ TCL_CFLAGS_EXTRA = @TCL_CFLAGS_EXTRA@ TCL_LIBS = @TCL_LIBS@ NETBEANS_SRC = @NETBEANS_SRC@ NETBEANS_OBJ = @NETBEANS_OBJ@ CHANNEL_SRC = @CHANNEL_SRC@ CHANNEL_OBJ = @CHANNEL_OBJ@ TERM_SRC = @TERM_SRC@ TERM_OBJ = @TERM_OBJ@ TERM_TEST = @TERM_TEST@ RUBY = @vi_cv_path_ruby@ RUBY_SRC = @RUBY_SRC@ RUBY_OBJ = @RUBY_OBJ@ RUBY_PRO = @RUBY_PRO@ RUBY_CFLAGS = @RUBY_CFLAGS@ RUBY_CFLAGS_EXTRA = @RUBY_CFLAGS_EXTRA@ RUBY_LIBS = @RUBY_LIBS@ AWK = @AWK@ STRIP = @STRIP@ EXEEXT = @EXEEXT@ CROSS_COMPILING = @CROSS_COMPILING@ COMPILEDBY = @compiledby@ INSTALLVIMDIFF = @dovimdiff@ INSTALLGVIMDIFF = @dogvimdiff@ INSTALL_LANGS = @INSTALL_LANGS@ INSTALL_TOOL_LANGS = @INSTALL_TOOL_LANGS@ ### sed command to fix quotes while creating pathdef.c QUOTESED = @QUOTESED@ ### Line break character as octal number for "tr" NL = @line_break@ ### Top directory for everything prefix = @prefix@ ### Top directory for the binary exec_prefix = @exec_prefix@ ### Prefix for location of data files BINDIR = @bindir@ ### For autoconf 2.60 and later (avoid a warning) datarootdir = @datarootdir@ ### Prefix for location of data files DATADIR = @datadir@ ### Prefix for location of man pages MANDIR = @mandir@ ### Do we have a GUI GUI_INC_LOC = @GUI_INC_LOC@ GUI_LIB_LOC = @GUI_LIB_LOC@ GUI_SRC = $(@GUITYPE@_SRC) GUI_OBJ = $(@GUITYPE@_OBJ) GUI_DEFS = $(@GUITYPE@_DEFS) GUI_IPATH = $(@GUITYPE@_IPATH) GUI_LIBS_DIR = $(@GUITYPE@_LIBS_DIR) GUI_LIBS1 = $(@GUITYPE@_LIBS1) GUI_LIBS2 = $(@GUITYPE@_LIBS2) GUI_INSTALL = $(@GUITYPE@_INSTALL) GUI_TARGETS = $(@GUITYPE@_TARGETS) GUI_MAN_TARGETS = $(@GUITYPE@_MAN_TARGETS) GUI_TESTTARGET = $(@GUITYPE@_TESTTARGET) GUI_TESTARG = $(@GUITYPE@_TESTARG) GUI_BUNDLE = $(@GUITYPE@_BUNDLE) NARROW_PROTO = @NARROW_PROTO@ GUI_X_LIBS = @GUI_X_LIBS@ MOTIF_LIBNAME = @MOTIF_LIBNAME@ GTK_LIBNAME = @GTK_LIBNAME@ GLIB_COMPILE_RESOURCES = @GLIB_COMPILE_RESOURCES@ GRESOURCE_SRC = @GRESOURCE_SRC@ GRESOURCE_OBJ = @GRESOURCE_OBJ@ GTK_UPDATE_ICON_CACHE = @GTK_UPDATE_ICON_CACHE@ UPDATE_DESKTOP_DATABASE = @UPDATE_DESKTOP_DATABASE@ ### Any OS dependent extra source and object file OS_EXTRA_SRC = @OS_EXTRA_SRC@ OS_EXTRA_OBJ = @OS_EXTRA_OBJ@ ### If the *.po files are to be translated to *.mo files. MAKEMO = @MAKEMO@ MSGFMT = @MSGFMT@ MSGFMT_DESKTOP = @MSGFMT_DESKTOP@ ### set if $SOURCE_DATE_EPOCH was set when running configure BUILD_DATE_MSG = @BUILD_DATE_MSG@ # Make sure that "make first" will run "make all" once configure has done its # work. This is needed when using the Makefile in the top directory. first: all