mirror of
git://git.yoctoproject.org/poky.git
synced 2025-07-19 21:09:03 +02:00
vim: Backport fix for CVE-2021-3770
(From OE-Core rev: 54d3d023ce55ba4a7160ed25a283f0918e7d8e2e) Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Richard Purdie
parent
b0bcf539e9
commit
b29863b6ba
|
|
@ -0,0 +1,207 @@
|
|||
From b7081e135a16091c93f6f5f7525a5c58fb7ca9f9 Mon Sep 17 00:00:00 2001
|
||||
From: Bram Moolenaar <Bram@vim.org>
|
||||
Date: Sat, 4 Sep 2021 18:47:28 +0200
|
||||
Subject: [PATCH] patch 8.2.3402: invalid memory access when using :retab with
|
||||
large value
|
||||
|
||||
Problem: Invalid memory access when using :retab with large value.
|
||||
Solution: Check the number is positive.
|
||||
|
||||
CVE: CVE-2021-3770
|
||||
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
|
||||
Upstream-Status: Backport [https://github.com/vim/vim/commit/b7081e135a16091c93f6f5f7525a5c58fb7ca9f9]
|
||||
---
|
||||
src/indent.c | 34 +++++++++++++++++++++-------------
|
||||
src/option.c | 12 ++++++------
|
||||
src/optionstr.c | 4 ++--
|
||||
src/testdir/test_retab.vim | 3 +++
|
||||
src/version.c | 2 ++
|
||||
5 files changed, 34 insertions(+), 21 deletions(-)
|
||||
|
||||
Index: git/src/indent.c
|
||||
===================================================================
|
||||
--- git.orig/src/indent.c
|
||||
+++ git/src/indent.c
|
||||
@@ -18,18 +18,19 @@
|
||||
/*
|
||||
* Set the integer values corresponding to the string setting of 'vartabstop'.
|
||||
* "array" will be set, caller must free it if needed.
|
||||
+ * Return FAIL for an error.
|
||||
*/
|
||||
int
|
||||
tabstop_set(char_u *var, int **array)
|
||||
{
|
||||
- int valcount = 1;
|
||||
- int t;
|
||||
- char_u *cp;
|
||||
+ int valcount = 1;
|
||||
+ int t;
|
||||
+ char_u *cp;
|
||||
|
||||
if (var[0] == NUL || (var[0] == '0' && var[1] == NUL))
|
||||
{
|
||||
*array = NULL;
|
||||
- return TRUE;
|
||||
+ return OK;
|
||||
}
|
||||
|
||||
for (cp = var; *cp != NUL; ++cp)
|
||||
@@ -43,8 +44,8 @@ tabstop_set(char_u *var, int **array)
|
||||
if (cp != end)
|
||||
emsg(_(e_positive));
|
||||
else
|
||||
- emsg(_(e_invarg));
|
||||
- return FALSE;
|
||||
+ semsg(_(e_invarg2), cp);
|
||||
+ return FAIL;
|
||||
}
|
||||
}
|
||||
|
||||
@@ -55,26 +56,33 @@ tabstop_set(char_u *var, int **array)
|
||||
++valcount;
|
||||
continue;
|
||||
}
|
||||
- emsg(_(e_invarg));
|
||||
- return FALSE;
|
||||
+ semsg(_(e_invarg2), var);
|
||||
+ return FAIL;
|
||||
}
|
||||
|
||||
*array = ALLOC_MULT(int, valcount + 1);
|
||||
if (*array == NULL)
|
||||
- return FALSE;
|
||||
+ return FAIL;
|
||||
(*array)[0] = valcount;
|
||||
|
||||
t = 1;
|
||||
for (cp = var; *cp != NUL;)
|
||||
{
|
||||
- (*array)[t++] = atoi((char *)cp);
|
||||
- while (*cp != NUL && *cp != ',')
|
||||
+ int n = atoi((char *)cp);
|
||||
+
|
||||
+ if (n < 0 || n > 9999)
|
||||
+ {
|
||||
+ semsg(_(e_invarg2), cp);
|
||||
+ return FAIL;
|
||||
+ }
|
||||
+ (*array)[t++] = n;
|
||||
+ while (*cp != NUL && *cp != ',')
|
||||
++cp;
|
||||
if (*cp != NUL)
|
||||
++cp;
|
||||
}
|
||||
|
||||
- return TRUE;
|
||||
+ return OK;
|
||||
}
|
||||
|
||||
/*
|
||||
@@ -1556,7 +1564,7 @@ ex_retab(exarg_T *eap)
|
||||
|
||||
#ifdef FEAT_VARTABS
|
||||
new_ts_str = eap->arg;
|
||||
- if (!tabstop_set(eap->arg, &new_vts_array))
|
||||
+ if (tabstop_set(eap->arg, &new_vts_array) == FAIL)
|
||||
return;
|
||||
while (vim_isdigit(*(eap->arg)) || *(eap->arg) == ',')
|
||||
++(eap->arg);
|
||||
Index: git/src/option.c
|
||||
===================================================================
|
||||
--- git.orig/src/option.c
|
||||
+++ git/src/option.c
|
||||
@@ -2292,9 +2292,9 @@ didset_options2(void)
|
||||
#endif
|
||||
#ifdef FEAT_VARTABS
|
||||
vim_free(curbuf->b_p_vsts_array);
|
||||
- tabstop_set(curbuf->b_p_vsts, &curbuf->b_p_vsts_array);
|
||||
+ (void)tabstop_set(curbuf->b_p_vsts, &curbuf->b_p_vsts_array);
|
||||
vim_free(curbuf->b_p_vts_array);
|
||||
- tabstop_set(curbuf->b_p_vts, &curbuf->b_p_vts_array);
|
||||
+ (void)tabstop_set(curbuf->b_p_vts, &curbuf->b_p_vts_array);
|
||||
#endif
|
||||
}
|
||||
|
||||
@@ -5756,7 +5756,7 @@ buf_copy_options(buf_T *buf, int flags)
|
||||
buf->b_p_vsts = vim_strsave(p_vsts);
|
||||
COPY_OPT_SCTX(buf, BV_VSTS);
|
||||
if (p_vsts && p_vsts != empty_option)
|
||||
- tabstop_set(p_vsts, &buf->b_p_vsts_array);
|
||||
+ (void)tabstop_set(p_vsts, &buf->b_p_vsts_array);
|
||||
else
|
||||
buf->b_p_vsts_array = 0;
|
||||
buf->b_p_vsts_nopaste = p_vsts_nopaste
|
||||
@@ -5914,7 +5914,7 @@ buf_copy_options(buf_T *buf, int flags)
|
||||
buf->b_p_isk = save_p_isk;
|
||||
#ifdef FEAT_VARTABS
|
||||
if (p_vts && p_vts != empty_option && !buf->b_p_vts_array)
|
||||
- tabstop_set(p_vts, &buf->b_p_vts_array);
|
||||
+ (void)tabstop_set(p_vts, &buf->b_p_vts_array);
|
||||
else
|
||||
buf->b_p_vts_array = NULL;
|
||||
#endif
|
||||
@@ -5929,7 +5929,7 @@ buf_copy_options(buf_T *buf, int flags)
|
||||
buf->b_p_vts = vim_strsave(p_vts);
|
||||
COPY_OPT_SCTX(buf, BV_VTS);
|
||||
if (p_vts && p_vts != empty_option && !buf->b_p_vts_array)
|
||||
- tabstop_set(p_vts, &buf->b_p_vts_array);
|
||||
+ (void)tabstop_set(p_vts, &buf->b_p_vts_array);
|
||||
else
|
||||
buf->b_p_vts_array = NULL;
|
||||
#endif
|
||||
@@ -6634,7 +6634,7 @@ paste_option_changed(void)
|
||||
if (buf->b_p_vsts_array)
|
||||
vim_free(buf->b_p_vsts_array);
|
||||
if (buf->b_p_vsts && buf->b_p_vsts != empty_option)
|
||||
- tabstop_set(buf->b_p_vsts, &buf->b_p_vsts_array);
|
||||
+ (void)tabstop_set(buf->b_p_vsts, &buf->b_p_vsts_array);
|
||||
else
|
||||
buf->b_p_vsts_array = 0;
|
||||
#endif
|
||||
Index: git/src/optionstr.c
|
||||
===================================================================
|
||||
--- git.orig/src/optionstr.c
|
||||
+++ git/src/optionstr.c
|
||||
@@ -2166,7 +2166,7 @@ did_set_string_option(
|
||||
if (errmsg == NULL)
|
||||
{
|
||||
int *oldarray = curbuf->b_p_vsts_array;
|
||||
- if (tabstop_set(*varp, &(curbuf->b_p_vsts_array)))
|
||||
+ if (tabstop_set(*varp, &(curbuf->b_p_vsts_array)) == OK)
|
||||
{
|
||||
if (oldarray)
|
||||
vim_free(oldarray);
|
||||
@@ -2205,7 +2205,7 @@ did_set_string_option(
|
||||
{
|
||||
int *oldarray = curbuf->b_p_vts_array;
|
||||
|
||||
- if (tabstop_set(*varp, &(curbuf->b_p_vts_array)))
|
||||
+ if (tabstop_set(*varp, &(curbuf->b_p_vts_array)) == OK)
|
||||
{
|
||||
vim_free(oldarray);
|
||||
#ifdef FEAT_FOLDING
|
||||
Index: git/src/testdir/test_retab.vim
|
||||
===================================================================
|
||||
--- git.orig/src/testdir/test_retab.vim
|
||||
+++ git/src/testdir/test_retab.vim
|
||||
@@ -74,4 +74,7 @@ endfunc
|
||||
func Test_retab_error()
|
||||
call assert_fails('retab -1', 'E487:')
|
||||
call assert_fails('retab! -1', 'E487:')
|
||||
+ call assert_fails('ret -1000', 'E487:')
|
||||
+ call assert_fails('ret 10000', 'E475:')
|
||||
+ call assert_fails('ret 80000000000000000000', 'E475:')
|
||||
endfunc
|
||||
Index: git/src/version.c
|
||||
===================================================================
|
||||
--- git.orig/src/version.c
|
||||
+++ git/src/version.c
|
||||
@@ -743,6 +743,8 @@ static char *(features[]) =
|
||||
static int included_patches[] =
|
||||
{ /* Add new patch number below this line */
|
||||
/**/
|
||||
+ 3402,
|
||||
+/**/
|
||||
0
|
||||
};
|
||||
|
||||
|
|
@ -17,7 +17,9 @@ SRC_URI = "git://github.com/vim/vim.git \
|
|||
file://0001-src-Makefile-improve-reproducibility.patch \
|
||||
file://no-path-adjust.patch \
|
||||
file://racefix.patch \
|
||||
file://b7081e135a16091c93f6f5f7525a5c58fb7ca9f9.patch \
|
||||
"
|
||||
|
||||
SRCREV = "98056533b96b6b5d8849641de93185dd7bcadc44"
|
||||
|
||||
# Do not consider .z in x.y.z, as that is updated with every commit
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user