mirror of
https://git.in.rschanz.org/ryan77627/guix.git
synced 2024-12-28 23:32:24 -05:00
8b5cb8d054
* gnu/packages/patches/qemu-CVE-2017-8112.patch, gnu/packages/patches/qemu-CVE-2017-8309.patch, gnu/packages/patches/qemu-CVE-2017-8379.patch, gnu/packages/patches/qemu-CVE-2017-8380.patch: New files. * gnu/local.mk (dist_patch_DATA): Add them. * gnu/packages/qemu.scm (qemu)[source]: Use them.
98 lines
3.4 KiB
Diff
98 lines
3.4 KiB
Diff
Fix CVE-2017-8379:
|
|
|
|
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8379
|
|
|
|
Patch copied from upstream source repository:
|
|
|
|
http://git.qemu.org/?p=qemu.git;a=commitdiff;h=fa18f36a461984eae50ab957e47ec78dae3c14fc
|
|
|
|
From fa18f36a461984eae50ab957e47ec78dae3c14fc Mon Sep 17 00:00:00 2001
|
|
From: Gerd Hoffmann <kraxel@redhat.com>
|
|
Date: Fri, 28 Apr 2017 10:42:37 +0200
|
|
Subject: [PATCH] input: limit kbd queue depth
|
|
|
|
Apply a limit to the number of items we accept into the keyboard queue.
|
|
|
|
Impact: Without this limit vnc clients can exhaust host memory by
|
|
sending keyboard events faster than qemu feeds them to the guest.
|
|
|
|
Fixes: CVE-2017-8379
|
|
Cc: P J P <ppandit@redhat.com>
|
|
Cc: Huawei PSIRT <PSIRT@huawei.com>
|
|
Reported-by: jiangxin1@huawei.com
|
|
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
|
|
Message-id: 20170428084237.23960-1-kraxel@redhat.com
|
|
---
|
|
ui/input.c | 14 +++++++++++---
|
|
1 file changed, 11 insertions(+), 3 deletions(-)
|
|
|
|
diff --git a/ui/input.c b/ui/input.c
|
|
index ed88cda6d6..fb1f404095 100644
|
|
--- a/ui/input.c
|
|
+++ b/ui/input.c
|
|
@@ -41,6 +41,8 @@ static QTAILQ_HEAD(QemuInputEventQueueHead, QemuInputEventQueue) kbd_queue =
|
|
QTAILQ_HEAD_INITIALIZER(kbd_queue);
|
|
static QEMUTimer *kbd_timer;
|
|
static uint32_t kbd_default_delay_ms = 10;
|
|
+static uint32_t queue_count;
|
|
+static uint32_t queue_limit = 1024;
|
|
|
|
QemuInputHandlerState *qemu_input_handler_register(DeviceState *dev,
|
|
QemuInputHandler *handler)
|
|
@@ -268,6 +270,7 @@ static void qemu_input_queue_process(void *opaque)
|
|
break;
|
|
}
|
|
QTAILQ_REMOVE(queue, item, node);
|
|
+ queue_count--;
|
|
g_free(item);
|
|
}
|
|
}
|
|
@@ -282,6 +285,7 @@ static void qemu_input_queue_delay(struct QemuInputEventQueueHead *queue,
|
|
item->delay_ms = delay_ms;
|
|
item->timer = timer;
|
|
QTAILQ_INSERT_TAIL(queue, item, node);
|
|
+ queue_count++;
|
|
|
|
if (start_timer) {
|
|
timer_mod(item->timer, qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL)
|
|
@@ -298,6 +302,7 @@ static void qemu_input_queue_event(struct QemuInputEventQueueHead *queue,
|
|
item->src = src;
|
|
item->evt = evt;
|
|
QTAILQ_INSERT_TAIL(queue, item, node);
|
|
+ queue_count++;
|
|
}
|
|
|
|
static void qemu_input_queue_sync(struct QemuInputEventQueueHead *queue)
|
|
@@ -306,6 +311,7 @@ static void qemu_input_queue_sync(struct QemuInputEventQueueHead *queue)
|
|
|
|
item->type = QEMU_INPUT_QUEUE_SYNC;
|
|
QTAILQ_INSERT_TAIL(queue, item, node);
|
|
+ queue_count++;
|
|
}
|
|
|
|
void qemu_input_event_send_impl(QemuConsole *src, InputEvent *evt)
|
|
@@ -381,7 +387,7 @@ void qemu_input_event_send_key(QemuConsole *src, KeyValue *key, bool down)
|
|
qemu_input_event_send(src, evt);
|
|
qemu_input_event_sync();
|
|
qapi_free_InputEvent(evt);
|
|
- } else {
|
|
+ } else if (queue_count < queue_limit) {
|
|
qemu_input_queue_event(&kbd_queue, src, evt);
|
|
qemu_input_queue_sync(&kbd_queue);
|
|
}
|
|
@@ -409,8 +415,10 @@ void qemu_input_event_send_key_delay(uint32_t delay_ms)
|
|
kbd_timer = timer_new_ms(QEMU_CLOCK_VIRTUAL, qemu_input_queue_process,
|
|
&kbd_queue);
|
|
}
|
|
- qemu_input_queue_delay(&kbd_queue, kbd_timer,
|
|
- delay_ms ? delay_ms : kbd_default_delay_ms);
|
|
+ if (queue_count < queue_limit) {
|
|
+ qemu_input_queue_delay(&kbd_queue, kbd_timer,
|
|
+ delay_ms ? delay_ms : kbd_default_delay_ms);
|
|
+ }
|
|
}
|
|
|
|
InputEvent *qemu_input_event_new_btn(InputButton btn, bool down)
|
|
--
|
|
2.13.0
|
|
|