[oe-commits] [openembedded-core] 01/24: gcc: CVE-2016-4490
git at git.openembedded.org
git at git.openembedded.org
Fri Jul 8 14:56:58 UTC 2016
rpurdie pushed a commit to branch master-next
in repository openembedded-core.
commit 709dd94cd2a6011738b4ab10bd09839b07f44eac
Author: Armin Kuster <akuster at mvista.com>
AuthorDate: Thu Jul 7 14:33:08 2016 -0700
gcc: CVE-2016-4490
[Yocto #9632]
not in 6.1.1 so back porting.
Signed-off-by: Armin Kuster <akuster at mvista.com>
Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
.../gcc/gcc-6.1/CVE-2016-4490.patch | 289 +++++++++++++++++++++
1 file changed, 289 insertions(+)
diff --git a/meta/recipes-devtools/gcc/gcc-6.1/CVE-2016-4490.patch b/meta/recipes-devtools/gcc/gcc-6.1/CVE-2016-4490.patch
new file mode 100644
index 0000000..aaef2be
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-6.1/CVE-2016-4490.patch
@@ -0,0 +1,289 @@
+From 7d235b1b5ea35352c54957ef5530d9a02c46962f Mon Sep 17 00:00:00 2001
+From: bernds <bernds at 138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Mon, 2 May 2016 17:06:40 +0000
+Subject: [PATCH] =?UTF-8?q?Demangler=20integer=20overflow=20fixes=20from?=
+ =?UTF-8?q?=20Marcel=20B=C3=B6hme.?=
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+ PR c++/70498
+ * cp-demangle.c: Parse numbers as integer instead of long to avoid
+ overflow after sanity checks. Include <limits.h> if available.
+ (INT_MAX): Define if necessary.
+ (d_make_template_param): Takes integer argument instead of long.
+ (d_make_function_param): Likewise.
+ (d_append_num): Likewise.
+ (d_identifier): Likewise.
+ (d_number): Parse as and return integer.
+ (d_compact_number): Handle overflow.
+ (d_source_name): Change variable type to integer for parsed number.
+ (d_java_resource): Likewise.
+ (d_special_name): Likewise.
+ (d_discriminator): Likewise.
+ (d_unnamed_type): Likewise.
+ * testsuite/demangle-expected: Add regression test cases.
+
+
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@235767 138bc75d-0d04-0410-961f-82ee72b054a4
+
+Upstream-Status: Backport
+CVE: CVE-2016-4490
+
+Signed-off-by: Armin Kuster <akuster at mvista.com>
+
+---
+ libiberty/ChangeLog | 19 +++++++++++++
+ libiberty/cp-demangle.c | 52 ++++++++++++++++++++---------------
+ libiberty/testsuite/demangle-expected | 14 ++++++++--
+ 3 files changed, 61 insertions(+), 24 deletions(-)
+
+Index: git/libiberty/ChangeLog
+===================================================================
+--- git.orig/libiberty/ChangeLog
++++ git/libiberty/ChangeLog
+@@ -1,3 +1,22 @@
++2016-05-02 Marcel Böhme <boehme.marcel at gmail.com>
++
++ PR c++/70498
++ * cp-demangle.c: Parse numbers as integer instead of long to avoid
++ overflow after sanity checks. Include <limits.h> if available.
++ (INT_MAX): Define if necessary.
++ (d_make_template_param): Takes integer argument instead of long.
++ (d_make_function_param): Likewise.
++ (d_append_num): Likewise.
++ (d_identifier): Likewise.
++ (d_number): Parse as and return integer.
++ (d_compact_number): Handle overflow.
++ (d_source_name): Change variable type to integer for parsed number.
++ (d_java_resource): Likewise.
++ (d_special_name): Likewise.
++ (d_discriminator): Likewise.
++ (d_unnamed_type): Likewise.
++ * testsuite/demangle-expected: Add regression test cases.
++
+ 2016-04-27 Release Manager
+
+ * GCC 6.1.0 released.
+Index: git/libiberty/cp-demangle.c
+===================================================================
+--- git.orig/libiberty/cp-demangle.c
++++ git/libiberty/cp-demangle.c
+@@ -128,6 +128,13 @@ extern char *alloca ();
+ # endif /* alloca */
+ #endif /* HAVE_ALLOCA_H */
+
++#ifdef HAVE_LIMITS_H
++#include <limits.h>
++#endif
++#ifndef INT_MAX
++# define INT_MAX (int)(((unsigned int) ~0) >> 1) /* 0x7FFFFFFF */
++#endif
++
+ #include "ansidecl.h"
+ #include "libiberty.h"
+ #include "demangle.h"
+@@ -398,7 +405,7 @@ d_make_dtor (struct d_info *, enum gnu_v
+ struct demangle_component *);
+
+ static struct demangle_component *
+-d_make_template_param (struct d_info *, long);
++d_make_template_param (struct d_info *, int);
+
+ static struct demangle_component *
+ d_make_sub (struct d_info *, const char *, int);
+@@ -421,9 +428,9 @@ static struct demangle_component *d_unqu
+
+ static struct demangle_component *d_source_name (struct d_info *);
+
+-static long d_number (struct d_info *);
++static int d_number (struct d_info *);
+
+-static struct demangle_component *d_identifier (struct d_info *, long);
++static struct demangle_component *d_identifier (struct d_info *, int);
+
+ static struct demangle_component *d_operator_name (struct d_info *);
+
+@@ -1119,7 +1126,7 @@ d_make_dtor (struct d_info *di, enum gnu
+ /* Add a new template parameter. */
+
+ static struct demangle_component *
+-d_make_template_param (struct d_info *di, long i)
++d_make_template_param (struct d_info *di, int i)
+ {
+ struct demangle_component *p;
+
+@@ -1135,7 +1142,7 @@ d_make_template_param (struct d_info *di
+ /* Add a new function parameter. */
+
+ static struct demangle_component *
+-d_make_function_param (struct d_info *di, long i)
++d_make_function_param (struct d_info *di, int i)
+ {
+ struct demangle_component *p;
+
+@@ -1620,7 +1627,7 @@ d_unqualified_name (struct d_info *di)
+ static struct demangle_component *
+ d_source_name (struct d_info *di)
+ {
+- long len;
++ int len;
+ struct demangle_component *ret;
+
+ len = d_number (di);
+@@ -1633,12 +1640,12 @@ d_source_name (struct d_info *di)
+
+ /* number ::= [n] <(non-negative decimal integer)> */
+
+-static long
++static int
+ d_number (struct d_info *di)
+ {
+ int negative;
+ char peek;
+- long ret;
++ int ret;
+
+ negative = 0;
+ peek = d_peek_char (di);
+@@ -1681,7 +1688,7 @@ d_number_component (struct d_info *di)
+ /* identifier ::= <(unqualified source code identifier)> */
+
+ static struct demangle_component *
+-d_identifier (struct d_info *di, long len)
++d_identifier (struct d_info *di, int len)
+ {
+ const char *name;
+
+@@ -1702,7 +1709,7 @@ d_identifier (struct d_info *di, long le
+ /* Look for something which looks like a gcc encoding of an
+ anonymous namespace, and replace it with a more user friendly
+ name. */
+- if (len >= (long) ANONYMOUS_NAMESPACE_PREFIX_LEN + 2
++ if (len >= (int) ANONYMOUS_NAMESPACE_PREFIX_LEN + 2
+ && memcmp (name, ANONYMOUS_NAMESPACE_PREFIX,
+ ANONYMOUS_NAMESPACE_PREFIX_LEN) == 0)
+ {
+@@ -1870,7 +1877,7 @@ d_java_resource (struct d_info *di)
+ {
+ struct demangle_component *p = NULL;
+ struct demangle_component *next = NULL;
+- long len, i;
++ int len, i;
+ char c;
+ const char *str;
+
+@@ -2012,7 +2019,7 @@ d_special_name (struct d_info *di)
+ case 'C':
+ {
+ struct demangle_component *derived_type;
+- long offset;
++ int offset;
+ struct demangle_component *base_type;
+
+ derived_type = cplus_demangle_type (di);
+@@ -2946,10 +2953,10 @@ d_pointer_to_member_type (struct d_info
+
+ /* <non-negative number> _ */
+
+-static long
++static int
+ d_compact_number (struct d_info *di)
+ {
+- long num;
++ int num;
+ if (d_peek_char (di) == '_')
+ num = 0;
+ else if (d_peek_char (di) == 'n')
+@@ -2957,7 +2964,7 @@ d_compact_number (struct d_info *di)
+ else
+ num = d_number (di) + 1;
+
+- if (! d_check_char (di, '_'))
++ if (num < 0 || ! d_check_char (di, '_'))
+ return -1;
+ return num;
+ }
+@@ -2969,7 +2976,7 @@ d_compact_number (struct d_info *di)
+ static struct demangle_component *
+ d_template_param (struct d_info *di)
+ {
+- long param;
++ int param;
+
+ if (! d_check_char (di, 'T'))
+ return NULL;
+@@ -3171,9 +3178,10 @@ d_expression_1 (struct d_info *di)
+ }
+ else
+ {
+- index = d_compact_number (di) + 1;
+- if (index == 0)
++ index = d_compact_number (di);
++ if (index == INT_MAX || index == -1)
+ return NULL;
++ index ++;
+ }
+ return d_make_function_param (di, index);
+ }
+@@ -3502,7 +3510,7 @@ d_local_name (struct d_info *di)
+ static int
+ d_discriminator (struct d_info *di)
+ {
+- long discrim;
++ int discrim;
+
+ if (d_peek_char (di) != '_')
+ return 1;
+@@ -3558,7 +3566,7 @@ static struct demangle_component *
+ d_unnamed_type (struct d_info *di)
+ {
+ struct demangle_component *ret;
+- long num;
++ int num;
+
+ if (! d_check_char (di, 'U'))
+ return NULL;
+@@ -4086,10 +4094,10 @@ d_append_string (struct d_print_info *dp
+ }
+
+ static inline void
+-d_append_num (struct d_print_info *dpi, long l)
++d_append_num (struct d_print_info *dpi, int l)
+ {
+ char buf[25];
+- sprintf (buf,"%ld", l);
++ sprintf (buf,"%d", l);
+ d_append_string (dpi, buf);
+ }
+
+Index: git/libiberty/testsuite/demangle-expected
+===================================================================
+--- git.orig/libiberty/testsuite/demangle-expected
++++ git/libiberty/testsuite/demangle-expected
+@@ -4422,12 +4422,22 @@ void baz<int>(A<sizeof (foo((int)(), (fl
+ _Z3fooI1FEN1XIXszdtcl1PclcvT__EEE5arrayEE4TypeEv
+ X<sizeof ((P(((F)())())).array)>::Type foo<F>()
+ #
+-# Tests a use-after-free problem
++# Tests a use-after-free problem PR70481
+
+ _Q.__0
+ ::Q.(void)
+ #
+-# Tests a use-after-free problem
++# Tests a use-after-free problem PR70481
+
+ _Q10-__9cafebabe.
+ cafebabe.::-(void)
++#
++# Tests integer overflow problem PR70492
++
++__vt_90000000000cafebabe
++__vt_90000000000cafebabe
++#
++# Tests write access violation PR70498
++
++_Z80800000000000000000000
++_Z80800000000000000000000
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