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From be8834340a2d928ece82025463ae23dee2c333d0 Mon Sep 17 00:00:00 2001
From: Philip Withnall <pwithnall@endlessos.org>
Date: Thu, 4 Feb 2021 13:37:56 +0000
Subject: [PATCH 02/11] gio: Use g_memdup2() instead of g_memdup() in obvious
places
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Convert all the call sites which use `g_memdup()`’s length argument
trivially (for example, by passing a `sizeof()`), so that they use
`g_memdup2()` instead.
In almost all of these cases the use of `g_memdup()` would not have
caused problems, but it will soon be deprecated, so best port away from
it.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #2319
Upstream-Status: Backport [https://mirrors.ocf.berkeley.edu/ubuntu/pool/main/g/glib2.0/glib2.0_2.64.6-1~ubuntu20.04.3.debian.tar.xz]
CVE: CVE-2021-27219
Signed-off-by: Neetika Singh <Neetika.Singh@kpit.com>
Signed-off-by: Ranjitsinh Rathod <ranjitsinh.rathod@kpit.com>
---
gio/gdbusconnection.c | 5 +++--
gio/gdbusinterfaceskeleton.c | 3 ++-
gio/gfile.c | 7 ++++---
gio/gsettingsschema.c | 5 +++--
gio/gwin32registrykey.c | 8 +++++---
gio/tests/async-close-output-stream.c | 6 ++++--
gio/tests/gdbus-export.c | 5 +++--
gio/win32/gwinhttpfile.c | 9 +++++----
8 files changed, 29 insertions(+), 19 deletions(-)
--- a/gio/gdbusconnection.c
+++ b/gio/gdbusconnection.c
@@ -110,6 +110,7 @@
#include "gasyncinitable.h"
#include "giostream.h"
#include "gasyncresult.h"
+#include "gstrfuncsprivate.h"
#include "gtask.h"
#include "gmarshal-internal.h"
@@ -4007,7 +4008,7 @@ _g_dbus_interface_vtable_copy (const GDB
/* Don't waste memory by copying padding - remember to update this
* when changing struct _GDBusInterfaceVTable in gdbusconnection.h
*/
- return g_memdup ((gconstpointer) vtable, 3 * sizeof (gpointer));
+ return g_memdup2 ((gconstpointer) vtable, 3 * sizeof (gpointer));
}
static void
@@ -4024,7 +4025,7 @@ _g_dbus_subtree_vtable_copy (const GDBus
/* Don't waste memory by copying padding - remember to update this
* when changing struct _GDBusSubtreeVTable in gdbusconnection.h
*/
- return g_memdup ((gconstpointer) vtable, 3 * sizeof (gpointer));
+ return g_memdup2 ((gconstpointer) vtable, 3 * sizeof (gpointer));
}
static void
--- a/gio/gdbusinterfaceskeleton.c
+++ b/gio/gdbusinterfaceskeleton.c
@@ -28,6 +28,7 @@
#include "gdbusmethodinvocation.h"
#include "gdbusconnection.h"
#include "gmarshal-internal.h"
+#include "gstrfuncsprivate.h"
#include "gtask.h"
#include "gioerror.h"
@@ -701,7 +702,7 @@ add_connection_locked (GDBusInterfaceSke
* properly before building the hooked_vtable, so we create it
* once at the last minute.
*/
- interface_->priv->hooked_vtable = g_memdup (g_dbus_interface_skeleton_get_vtable (interface_), sizeof (GDBusInterfaceVTable));
+ interface_->priv->hooked_vtable = g_memdup2 (g_dbus_interface_skeleton_get_vtable (interface_), sizeof (GDBusInterfaceVTable));
interface_->priv->hooked_vtable->method_call = skeleton_intercept_handle_method_call;
}
--- a/gio/gfile.c
+++ b/gio/gfile.c
@@ -60,6 +60,7 @@
#include "gasyncresult.h"
#include "gioerror.h"
#include "glibintl.h"
+#include "gstrfuncsprivate.h"
/**
@@ -7854,7 +7855,7 @@ measure_disk_usage_progress (gboolean re
g_main_context_invoke_full (g_task_get_context (task),
g_task_get_priority (task),
measure_disk_usage_invoke_progress,
- g_memdup (&progress, sizeof progress),
+ g_memdup2 (&progress, sizeof progress),
g_free);
}
@@ -7872,7 +7873,7 @@ measure_disk_usage_thread (GTask
data->progress_callback ? measure_disk_usage_progress : NULL, task,
&result.disk_usage, &result.num_dirs, &result.num_files,
&error))
- g_task_return_pointer (task, g_memdup (&result, sizeof result), g_free);
+ g_task_return_pointer (task, g_memdup2 (&result, sizeof result), g_free);
else
g_task_return_error (task, error);
}
@@ -7896,7 +7897,7 @@ g_file_real_measure_disk_usage_async (GF
task = g_task_new (file, cancellable, callback, user_data);
g_task_set_source_tag (task, g_file_real_measure_disk_usage_async);
- g_task_set_task_data (task, g_memdup (&data, sizeof data), g_free);
+ g_task_set_task_data (task, g_memdup2 (&data, sizeof data), g_free);
g_task_set_priority (task, io_priority);
g_task_run_in_thread (task, measure_disk_usage_thread);
--- a/gio/gsettingsschema.c
+++ b/gio/gsettingsschema.c
@@ -20,6 +20,7 @@
#include "gsettingsschema-internal.h"
#include "gsettings.h"
+#include "gstrfuncsprivate.h"
#include "gvdb/gvdb-reader.h"
#include "strinfo.c"
@@ -1067,9 +1068,9 @@ g_settings_schema_list_children (GSettin
if (g_str_has_suffix (key, "/"))
{
- gint length = strlen (key);
+ gsize length = strlen (key);
- strv[j] = g_memdup (key, length);
+ strv[j] = g_memdup2 (key, length);
strv[j][length - 1] = '\0';
j++;
}
--- a/gio/gwin32registrykey.c
+++ b/gio/gwin32registrykey.c
@@ -28,6 +28,8 @@
#include <ntstatus.h>
#include <winternl.h>
+#include "gstrfuncsprivate.h"
+
#ifndef _WDMDDK_
typedef enum _KEY_INFORMATION_CLASS {
KeyBasicInformation,
@@ -247,7 +249,7 @@ g_win32_registry_value_iter_copy (const
new_iter->value_name_size = iter->value_name_size;
if (iter->value_data != NULL)
- new_iter->value_data = g_memdup (iter->value_data, iter->value_data_size);
+ new_iter->value_data = g_memdup2 (iter->value_data, iter->value_data_size);
new_iter->value_data_size = iter->value_data_size;
@@ -268,8 +270,8 @@ g_win32_registry_value_iter_copy (const
new_iter->value_data_expanded_charsize = iter->value_data_expanded_charsize;
if (iter->value_data_expanded_u8 != NULL)
- new_iter->value_data_expanded_u8 = g_memdup (iter->value_data_expanded_u8,
- iter->value_data_expanded_charsize);
+ new_iter->value_data_expanded_u8 = g_memdup2 (iter->value_data_expanded_u8,
+ iter->value_data_expanded_charsize);
new_iter->value_data_expanded_u8_size = iter->value_data_expanded_charsize;
--- a/gio/tests/async-close-output-stream.c
+++ b/gio/tests/async-close-output-stream.c
@@ -24,6 +24,8 @@
#include <stdlib.h>
#include <string.h>
+#include "gstrfuncsprivate.h"
+
#define DATA_TO_WRITE "Hello world\n"
typedef struct
@@ -147,9 +149,9 @@ prepare_data (SetupData *data,
data->expected_size = g_memory_output_stream_get_data_size (G_MEMORY_OUTPUT_STREAM (data->data_stream));
- g_assert_cmpint (data->expected_size, >, 0);
+ g_assert_cmpuint (data->expected_size, >, 0);
- data->expected_output = g_memdup (written, (guint)data->expected_size);
+ data->expected_output = g_memdup2 (written, data->expected_size);
/* then recreate the streams and prepare them for the asynchronous close */
destroy_streams (data);
--- a/gio/tests/gdbus-export.c
+++ b/gio/tests/gdbus-export.c
@@ -23,6 +23,7 @@
#include <string.h>
#include "gdbus-tests.h"
+#include "gstrfuncsprivate.h"
/* all tests rely on a shared mainloop */
static GMainLoop *loop = NULL;
@@ -671,7 +672,7 @@ subtree_introspect (GDBusConnection
g_assert_not_reached ();
}
- return g_memdup (interfaces, 2 * sizeof (void *));
+ return g_memdup2 (interfaces, 2 * sizeof (void *));
}
static const GDBusInterfaceVTable *
@@ -727,7 +728,7 @@ dynamic_subtree_introspect (GDBusConnect
{
const GDBusInterfaceInfo *interfaces[2] = { &dyna_interface_info, NULL };
- return g_memdup (interfaces, 2 * sizeof (void *));
+ return g_memdup2 (interfaces, 2 * sizeof (void *));
}
static const GDBusInterfaceVTable *
--- a/gio/win32/gwinhttpfile.c
+++ b/gio/win32/gwinhttpfile.c
@@ -29,6 +29,7 @@
#include "gio/gfile.h"
#include "gio/gfileattribute.h"
#include "gio/gfileinfo.h"
+#include "gstrfuncsprivate.h"
#include "gwinhttpfile.h"
#include "gwinhttpfileinputstream.h"
#include "gwinhttpfileoutputstream.h"
@@ -393,10 +394,10 @@
child = g_object_new (G_TYPE_WINHTTP_FILE, NULL);
child->vfs = winhttp_file->vfs;
child->url = winhttp_file->url;
- child->url.lpszScheme = g_memdup (winhttp_file->url.lpszScheme, (winhttp_file->url.dwSchemeLength+1)*2);
- child->url.lpszHostName = g_memdup (winhttp_file->url.lpszHostName, (winhttp_file->url.dwHostNameLength+1)*2);
- child->url.lpszUserName = g_memdup (winhttp_file->url.lpszUserName, (winhttp_file->url.dwUserNameLength+1)*2);
- child->url.lpszPassword = g_memdup (winhttp_file->url.lpszPassword, (winhttp_file->url.dwPasswordLength+1)*2);
+ child->url.lpszScheme = g_memdup2 (winhttp_file->url.lpszScheme, (winhttp_file->url.dwSchemeLength+1)*2);
+ child->url.lpszHostName = g_memdup2 (winhttp_file->url.lpszHostName, (winhttp_file->url.dwHostNameLength+1)*2);
+ child->url.lpszUserName = g_memdup2 (winhttp_file->url.lpszUserName, (winhttp_file->url.dwUserNameLength+1)*2);
+ child->url.lpszPassword = g_memdup2 (winhttp_file->url.lpszPassword, (winhttp_file->url.dwPasswordLength+1)*2);
child->url.lpszUrlPath = wnew_path;
child->url.dwUrlPathLength = wcslen (wnew_path);
child->url.lpszExtraInfo = NULL;
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