0
0
mirror of https://github.com/vim/vim.git synced 2025-07-26 11:04:33 -04:00

19161 Commits

Author SHA1 Message Date
Yegappan Lakshmanan
2a71b54d35
patch 9.0.2162: Vim9: type documentation out-dated
Problem:  Vim9: type documentation out-dated
Solution: Update documentation, fix typo in type alias
          definition

closes: #13684

Signed-off-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-12-14 20:03:03 +01:00
Yegappan Lakshmanan
d2e1c83962
patch 9.0.2161: Vim9: not able to use imported interfaces and classes
Problem:  Vim9: not able to use imported interfaces and classes
Solution: Detect imported class/interfaces names correclty

fixes:  #13661
closes: #13685

Signed-off-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-12-14 19:59:45 +01:00
Ernie Rael
2025af165e
patch 9.0.2160: instanceof() should use varargs as second arg
Problem:  instanceof() should use varargs as second arg
Solution: Modify `instanceof()` to use varargs instead of list

Modify `instanceof()` to use varargs instead of list
Valid `instanceof()` arguments are `type`s. A `type` is not a value;
it cannot be added to a list.

This change is non-compatible with the current usage of instanceof;
but instanceof is relatively new and it's a trivial change.

fixes: #13421
closes: #13644

Signed-off-by: Ernie Rael <errael@raelity.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-12-12 16:58:00 +01:00
zeertzjq
ec54af4e26
patch 9.0.2159: screenpos() may crash with neg. column
Problem:  screenpos() may crash with neg. column
Solution: validate and correct column

closes: #13669

Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-12-12 16:43:44 +01:00
Christian Brabandt
0f28791b21
patch 9.0.2158: [security]: use-after-free in check_argument_type
Problem:  [security]: use-after-free in check_argument_type
Solution: Reset function type pointer when freeing the function type
          list

function pointer fp->uf_func_type may point to the same memory, that was
allocated for fp->uf_type_list. However, when cleaning up a function
definition (e.g. because it was invalid), fp->uf_type_list will be
freed, but fp->uf_func_type may still point to the same (now) invalid
memory address.

So when freeing the fp->uf_type_list, check if fp->func_type points to
any of those types and if it does, reset the fp->uf_func_type pointer to
the t_func_any (default) type pointer

closes: #13652

Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-12-11 17:53:25 +01:00
Christian Brabandt
e4a450a87b
patch 9.0.2157: Vim9: incorrectly parses :def func definitions
Problem:  Vim9: incorrectly parses :def func definitions
Solution: check for more context when parsing function args

Signed-off-by: Christian Brabandt <cb@256bit.org>
Incorrectly parses def function definitions

Vim currently allows to define the following vim9 function:
  def Func(f=
  )
  enddef

It currently thinks a Lambda is following the `=` but it doesn't check,
that there is actually an expression following. So when such a think is
encountered, remember that an expression should be following.

If no expression is coming in the next few lines, fail parsing the
function arguments, which will Vim no longer accept such a function.

Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-12-11 17:50:08 +01:00
Ernie Rael
9ed53752df
patch 9.0.2156: Vim9: can use typealias in assignment
Problem:  Vim9: can use typealias in an assignment
Solution: Generate errors when class/typealias involved in the rhs of an
          assignment

closes: #13637

Signed-off-by: Ernie Rael <errael@raelity.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
Generate errors when class/typealias involved in assignment.
2023-12-11 17:40:46 +01:00
Yegappan Lakshmanan
d33518522a
patch 9.0.2155: Vim9: type not kept when assigning vars
Problem:  Vim9: type not kept when assigning vars
Solution: When assigning a List or a Dict value to a variable of type
          'any', keep the type

closes: #13639
closes: #13646

Signed-off-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-12-08 21:47:22 +01:00
zeertzjq
f48558e10a
patch 9.0.2154: The option[] array is not sorted
Problem:  The options[] array is not sorted alphabetically.
Solution: Sort it alphabetically.  Add a test.  Avoid unnecessary loop
          iterations in findoption().

closes: #13648

Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-12-08 21:36:55 +01:00
Zoltan Arpadffy
1c8e233cb8
patch 9.0.2153: no support to build on OpenVMS
Problem:  no support to build on OpenVMS
Solution: Add OpenVMS X86_64 platform port

closes: #13623

Co-authored-by: errael <errael@raelity.com>
Co-authored-by: K.Takata <kentkt@csc.jp>
Signed-off-by: Zoltan Arpadffy <zoltan.arpadffy@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-12-05 16:04:23 +01:00
Yegappan Lakshmanan
668971958c
patch 9.0.2152: Using type unknown for List/Dict containers
Problem:  Using type unknown for List/Dict containers
Solution: Use 'any' instead

fixes: #13582
closes: #13625

Signed-off-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-12-05 15:51:50 +01:00
zeertzjq
588f20dece
patch 9.0.2151: 'breakindent' is not drawn after diff filler lines
Problem:  'breakindent' is not drawn after diff filler lines.
Solution: Correct check for whether 'breakindent' should be drawn.

closes: #13624

Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-12-05 15:49:47 +01:00
Mike Williams
620f011694
patch 9.0.2150: Using int for errbuflen in option funcs
Problem:  Using int for errbuflen in option funcs
Solution: Use size_t for errbuflen in string option functions

Use size_t for errbuflen in string option functions

This started as size_t to int warning on Windows in
do_set_option_string().  Other option setting functions are using size_t
for errbuflen so I changed the type in the argument list and then chased
further compiler warnings into the string option functions in
optionstr.c changing ints to size_t as I went.

I also changed the type of os_errbuflen in optset_T to size_t and
updated related argument lists in optionstr.c, as well as updating
set_string_option() to also use size_t for errbuflen for consistency
with other string option setting functions.

closes: #13628

Signed-off-by: Mike Williams <mikew@globalgraphics.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-12-05 15:38:33 +01:00
Christian Brabandt
5dd41d4b63
patch 9.0.2149: [security]: use-after-free in exec_instructions()
Problem:  [security]: use-after-free in exec_instructions()
Solution: get tv pointer again

[security]: use-after-free in exec_instructions()

exec_instructions may access freed memory, if the GA_GROWS_FAILS()
re-allocates memory. When this happens, the typval tv may still point to
now already freed memory. So let's get that pointer again and compare it
with tv. If those two pointers differ, tv is now invalid and we have to
refresh the tv pointer.

closes: #13621

Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-12-04 22:54:43 +01:00
Ronan Pigott
1e5d66408e
patch 9.0.2148: Vim does not detect pacman.log file
Problem:  Vim does not detect pacman.log file
Solution: Detect pacmanlogs and add syntax highlighting

pacman.log is a filetype common to Arch Liux and related distributions.
Add some simple syntax highlighting for the pacmanlog filetype.

closes: #13618

Signed-off-by: Ronan Pigott <ronan@rjp.ie>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-12-04 20:46:15 +01:00
Yegappan Lakshmanan
3ee25965e4
patch 9.0.2147: Type check tests fail without the channel feature
Problem:  Type check tests fail without the channel feature
Solution: only run tests, when Vim was build with +channel

fixes: #13617
closes: #13619

Signed-off-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-12-04 20:31:14 +01:00
Christian Brabandt
0d0b3b1951
patch 9.0.2146: text-property without type errors when joining
Problem:  text-property without type errors when joining
Solution: count all text-properties, with or without type
          before joining lines

Error when joining lines with text properties without a proper type

When joining lines, we need to consider all text properties that are
attached to a line, even when those text properties are invalid and do
not have a type attached to them.

However, since patch v9.0.0993
(commit: 89469d157aea01513bde826b4519dd6b5fbceae4)
those text properties won't be counted when joining lines and therefore
this will cause the adjustment for text properties on joining to go
wrong (and may later cause SIGABRT with an invalid free pointer)

I am not sure, why the condition to not count text properties with a
valid type was added in patch v9.0.993, because no test fails if those
condition is removed. So let's just remove this condition and add a test
that verifies, that we are able to join lines, even when the text
properties attached to it do not have a valid type.

fixes: #13609
closes: #13614

Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-12-03 17:56:43 +01:00
zeertzjq
5b4d1fcbf0
patch 9.0.2145: wrong scrolling in insert mode with smoothscroll
Problem:  Wrong scrolling in Insert mode with 'smoothscroll' at the
          bottom of the window.
Solution: Don't use set_topline() when 'smoothscroll' is set.

fixes: #13612
closes: #13613

Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-12-03 17:54:10 +01:00
zeertzjq
4e26a9aab6
patch 9.0.2144: Text properties causes wrong line wrapping
Problem:  Text properties causes wrong line wrapping to be drawn.
Solution: Find the index of the last text property that inserts text.

closes: #13611

Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-12-03 17:50:47 +01:00
Christian Brabandt
c089c3816b
CI: disable the test_terminal_resize2() test for GH CI in gui mode (#13615)
becaues it tends to time-out CI for unknown reasons.

related: #13566

Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-12-03 17:48:29 +01:00
Christian Brabandt
abfa13ebe9
patch 9.0.2143: [security]: buffer-overflow in ex_substitute
Problem:  [security]: buffer-overflow in ex_substitute
Solution: clear memory after allocating

When allocating the new_start pointer in ex_substitute() the memory
pointer points to some garbage that the following for loop in
ex_cmds.c:4743 confuses and causes it to accessing the new_start pointer
beyond it's size, leading to a buffer-overlow.

So fix this by using alloc_clear() instead of alloc(), which will
clear the memory by NUL and therefore cause the loop to terminate
correctly.

Reported by @henices, thanks!

closes: #13596
Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-12-01 18:58:51 +01:00
Christian Brabandt
b39b240c38
patch 9.0.2142: [security]: stack-buffer-overflow in option callback functions
Problem:  [security]: stack-buffer-overflow in option callback functions
Solution: pass size of errbuf down the call stack, use snprintf()
          instead of sprintf()

We pass the error buffer down to the option callback functions, but in
some parts of the code, we simply use sprintf(buf) to write into the error
buffer, which can overflow.

So let's pass down the length of the error buffer and use sprintf(buf, size)
instead.

Reported by @henices, thanks!

Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-12-01 18:58:51 +01:00
Christian Brabandt
0fb375aae6
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>
2023-12-01 18:58:50 +01:00
Christian Brabandt
eec0c2b3a4
patch 9.0.2140: [security]: use-after-free in win-enter
Problem:  [security]: use-after-free in win-enter
Solution: validate window pointer before calling win_enter()

win_goto() may stop visual mode, if it is active. However, this may in
turn trigger the ModeChanged autocommand, which could potentially free
the wp pointer which was valid before now became stale and points to now
freed memory.

So before calling win_enter(), let's verify one more time, that the
wp pointer still points to a valid window structure.

Reported by @henices, thanks!

Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-12-01 18:58:50 +01:00
Christian Brabandt
4f3480c943
patch 9.0.2139: html.angular ft is problematic
Problem:  html.angular ft is problematic
Solution: partly revert v9.0.2137

The html.angular filetype causes issues and does not trigger FileType
autocommands for the html or angular filetypes.

So let's roll back that particular change and detect this only as html
file

related: https://github.com/vim/vim/pull/13594#issuecomment-1834465890

closes: #13604

Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-12-01 18:01:17 +01:00
Christian Brabandt
926c3f45a2
CI: disable the test_terminal_resize() test for GH CI in GUI (#13603)
fixes: #13566

Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-12-01 17:59:32 +01:00
Ernie Rael
fda700cb04
patch 9.0.2138: Overflow logic requires long long
Problem:  Overflow logic requires long long
Solution: Define vimlong_T data type to make life easier
          for porters

closes: #13598

Signed-off-by: Ernie Rael <errael@raelity.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-11-30 18:20:00 +01:00
ObserverOfTime
7bed263c34
patch 9.0.2137: Can't detect angular & mustache filetypes
Problem:  Can't detect angular & mustache filetypes
Solution: Detect *.mustache as Mustache filetype;
          detect *.component.html as html.angular filetype

closes: #13594

Signed-off-by: ObserverOfTime <chronobserver@disroot.org>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-11-30 17:41:19 +01:00
Shawn Hatori
8ceb99001b
patch 9.0.2136: MSVC errorformat can be improved
Problem:  MSVC errorformat can be improved
Solution: parse error type and column number in MSVC errorformat

closes: #13587

Signed-off-by: Shawn Hatori <shawn.hatori@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-11-28 20:51:07 +01:00
zeertzjq
fcaeb3d42b
patch 9.0.2135: No test for mode() when executing Ex commands
Problem:  No test for mode() when executing Ex commands
Solution: Add some test cases and simplify several other test cases.
          Also add a few more test cases for ModeChanged.

closes: #13588

Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-11-28 20:46:29 +01:00
Christian Brabandt
c4ffeddfe5
patch 9.0.2134: ml_get error when scrolling
Problem:  ml_get error when scrolling after delete
Solution: mark topline to be validated in main_loop
          if it is larger than current buffers line
          count

reset_lnums() is called after e.g. TextChanged autocommands and it may
accidentally cause curwin->w_topline to become invalid, e.g. if the
autocommand has deleted some lines.

So verify that curwin->w_topline points to a valid line and if not, mark
the window to have w_topline recalculated in main_loop() in
update_topline() after reset_lnums() returns.

fixes: #13568
fixes: #13578

Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-11-27 23:25:03 +01:00
Sam-programs
d1c3ef1f47
patch 9.0.2133: Cannot detect overstrike mode in Cmdline mode
Problem:  Cannot detect overstrike mode in Cmdline mode
Solution: Make mode() return "cr" for overstrike

closes: #13569

Signed-off-by: Sam-programs <None>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-11-27 22:22:51 +01:00
Christian Brabandt
5c23343770
patch 9.0.2132: Duplicate Netbeans Error Message
Problem:  Duplicate Netbeans Error Message
Solution: Remove duplicate message

We have 2 error Messages used for the Netbeans interface:

- EXTERN char e_invalid_buffer_identifier_in_close[]
  INIT(= N_("E648: Invalid buffer identifier in close"));
- EXTERN char e_invalid_buffer_identifier_in_close_2[]
  INIT(= N_("E649: Invalid buffer identifier in close"));

Since the error message is exactly the same, get rid of the  second
message.

closes: #13584

Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-11-27 20:04:24 +01:00
Daniel Buch Hansen
b9efc72c24
patch 9.0.2131: not all nushell files detected
Problem:  not all nushell files detected
Solution: use *.nu to detect nushell files

closes: #13586

Signed-off-by: Daniel Buch Hansen <boogiewasthere@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-11-27 20:00:56 +01:00
Christian Brabandt
c6754de5dd
translation(de): Updated German translations (#13585)
Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-11-27 19:59:15 +01:00
Antonio Giovanni Colombo
4e7727dd88
translation(it): updated Italian translation
Signed-off-by: Antonio Giovanni Colombo <azc100@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-11-26 10:11:54 +01:00
Ken Takata
075ad70474
patch 9.0.2130: some errors with translation Makefiles
Problem:  some errors with translation Makefiles
Solution: fix issues

Update src/po/ makefiles after 9.0.2127

* Change how to check `%LANGUAGE%`.
  Check it only when needed.
* Add double quotes to where `GETTEXT_PATH` is used.
  Before 9.0.2127, this worked: `nmake -f Make_mvc.mak GETTEXT_PATH="\"C:\Program Files\Git\usr\bin\""` (which was a bit tricky.)
  9.0.2127 broke this and syntax error occurred.
  This doesn't work either in 9.0.2127: `nmake -f Make_mvc.mak GETTEXT_PATH="C:\Program Files\Git\usr\bin"`
  With this Commit, this works: `nmake -f Make_mvc.mak GETTEXT_PATH="C:\Program Files\Git\usr\bin"`
* Better error report for the `check` target.
  Show the line number of the error. (Imported from vim-jp/lang-ja.)

closes: #13567

Signed-off-by: Ken Takata <kentkt@csc.jp>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-11-25 15:51:00 +01:00
mityu
a555069b7d
patch 9.0.2129: [security]: use-after-free in call_dfunc()
Problem:  [security]: use-after-free in call_dfunc()
Solution: Refresh dfunc pointer

closes: #13571

This Commit fixes a SEGV caused by a use-after-free bug in call_dfunc().
When calling check_ufunc_arg_types() from the call_dfunc() it may cause
def functions to be re-compiled and if there are too many def functions,
the def_functions array will be re-allocated.  Which means, that the
dfunc pointer in call_dfunc() now starts pointing to freed memory.

So we need to reset the dfunc pointer after calling
check_ufunc_arg_types().

Let's also add a test, to ensure we do not regress.

Signed-off-by: mityu <mityu.mail@gmail.com>
Signed-off-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-11-25 15:41:20 +01:00
Julien Marrec
2e31065a65
patch 9.0.2128: runtime(swig): add syntax and filetype plugins
Add syntax and filetype plugins for SWIG (Simplified Wrapper Interface
Generator) description files.

The default syntax for .i files highlights comments in a reverse
color scheme which doesn't look well.  This syntax builds
on vim's c++ syntax by adding highlighting for common swig
directives and user defined directives.  For an alternative
syntax, see vimscript #1247 (which I found after writing this).

closes: #13562

Co-authored-by: Matěj Cepl <mcepl@cepl.eu>
Co-authored-by: Julien Marrec <julien.marrec@gmail.com>
Signed-off-by: Julien Marrec <julien.marrec@gmail.com>
Signed-off-by: Doug Kearns <dougkearns@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-11-25 15:30:46 +01:00
RestorerZ
e214692718
patch 9.0.2127: translation Makefiles can be improved
Problem:  translation Makefiles can be improved
Solution: Modified and extended po-related Makefiles and
          related files

closes: #13518

Signed-off-by: RestorerZ <restorer@mail2k.ru>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-11-23 20:58:32 +01:00
zeertzjq
00624a2fa0
patch 9.0.2126: unused assignments when checking 'listchars'
Problem:  Unused assignments when checking the value of 'listchars'.
Solution: Loop only once when just checking the value.  Add a test to
          check that this change doesn't cause double-free.

closes: #13559

Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-11-23 20:47:16 +01:00
zeertzjq
40ed6711bd
patch 9.0.2125: File info disappears when 'cmdheight' has decreased
Problem:  File info disappears immediately when 'cmdheight' has just
          decreased due to switching tabpage and 'shortmess' doesn't
          contain 'o' or 'O'.
Solution: Make sure msg_row isn't smaller than cmdline_row.

fixes: #13560
closes: #13561

Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-11-23 20:37:01 +01:00
Ernie Rael
2b0882fa65
patch 9.0.2124: INT overflow detection logic can be simplified
Problem:  INT overflow logic can be simplified
Solution: introduce trim_to_int() function

closes: #13556

Signed-off-by: Ernie Rael <errael@raelity.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-11-23 20:33:05 +01:00
Christian Brabandt
df63da98d8
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>
2023-11-23 20:14:28 +01:00
Christian Brabandt
3770574e4a
patch 9.0.2122: [security]: prevent overflow in indenting
Problem:  [security]: prevent overflow in indenting
Solution: use long long and remove cast to (int)

The shiftwidth option values are defined as being long. However, when
calculating the actual amount of indent, we cast down to (int), which
may cause the shiftwidth value to become negative and later it may even
cause Vim to try to allocate a huge amount of memory.

We already use long and long long variable types to calculate the indent
(and detect possible overflows), so the cast to (int) seems superfluous
and can be safely removed. So let's just remove the (int) cast and
calculate the indent using longs.

Additionally, the 'shiftwidth' option value is also used when determining
the actual 'cino' options. There it can again cause another overflow, so
make sure it is safe in parse_cino() as well.

fixes: #13554
closes: #13555

Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-11-22 22:18:35 +01:00
Christian Brabandt
26c11c5688
patch 9.0.2121: [security]: use-after-free in ex_substitute
Problem:  [security]: use-after-free in ex_substitute
Solution: always allocate memory

closes: #13552

A recursive :substitute command could cause a heap-use-after free in Vim
(CVE-2023-48706).

The whole reproducible test is a bit tricky, I can only reproduce this
reliably when no previous substitution command has been used yet
(which is the reason, the test needs to run as first one in the
test_substitute.vim file) and as a combination of the `:~` command
together with a :s command that contains the special substitution atom `~\=`
which will make use of a sub-replace special atom and calls a vim script
function.

There was a comment in the existing :s code, that already makes the
`sub` variable allocate memory so that a recursive :s call won't be able
to cause any issues here, so this was known as a potential problem
already.  But for the current test-case that one does not work, because
the substitution does not start with `\=` but with `~\=` (and since
there does not yet exist a previous substitution atom, Vim will simply
increment the `sub` pointer (which then was not allocated dynamically)
and later one happily use a sub-replace special expression (which could
then free the `sub` var).

The following commit fixes this, by making the sub var always using
allocated memory, which also means we need to free the pointer whenever
we leave the function. Since sub is now always an allocated variable,
we also do no longer need the sub_copy variable anymore, since this one
was used to indicated when sub pointed to allocated memory (and had
therefore to be freed on exit) and when not.

Github Security Advisory:
https://github.com/vim/vim/security/advisories/GHSA-c8qm-x72m-q53q

Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-11-22 21:52:45 +01:00
Christian Brabandt
4e5c3cf07b
patch 9.0.2120: un-used assignment in do_source_buffer_init
Problem:  un-used assignment in do_source_buffer_init
Solution: Remove it

Coverity warns about assigning NULL to line in scriptfile.c:1408,
because right after that assignment, in the next iteration of the loop,
line will be overwritten by the next value from vim_strsave().

And in case this was the last iteration, the line variable is no longer
used until the function returns. So we can safely remove that assignment.

closes: #13547

Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-11-21 19:59:54 +01:00
Christian Brabandt
6b36645f07
patch 9.0.2119: remove dead-condition in ex_class
Problem:  remove dead-condition in ex_class()
Solution: remove the extra condition

The variable is_class must be true once we reach the

,----
| else if (has_static)
`----

in line 1750, because we break out earlier if is_class is false in line
1598 of vim9class.c. And once 'has_static = TRUE', we must be in a
class and there fore is_class is true.

Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-11-21 19:57:05 +01:00
Christian Brabandt
a5218a7330
patch 9.0.2118: [security]: avoid double-free in get_style_font_variants
Problem:  [security]: avoid double-free
Solution: Only fee plain_font, when it is not the same as bold_font

When plain_font == bold_font and bold_font is not NULL, we may end up
trying to free bold_font again, which already has been freed a few lines
above.

So only free bold_font, when the condition gui.font_can_bold is true,
which means that bold_font is not pointing to plain_font (so it needs to
be freed separately).

Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-11-21 19:54:12 +01:00
Christian Brabandt
567cae2630
patch 9.0.2117: [security] use-after-free in qf_free_items
Problem:  [security] use-after-free in qf_free_items
Solution: only access qfpnext, if it hasn't been freed

Coverity discovered a possible use-after-free in qf_free_items. When
freeing the qfline items, we may access freed memory, when qfp ==
qfpnext.

So only access qfpnext, when it hasn't been freed.

Signed-off-by: Christian Brabandt <cb@256bit.org>
2023-11-21 19:52:12 +01:00