[oe-commits] [openembedded-core] 17/17: qemu: Security fix CVE-2016-2858

git at git.openembedded.org git at git.openembedded.org
Fri Apr 29 06:55:13 UTC 2016


rpurdie pushed a commit to branch krogoth
in repository openembedded-core.

commit 48909052e7b19ba108ee7813c1efdbed0c2e06ab
Author: Armin Kuster <akuster at mvista.com>
AuthorDate: Thu Apr 28 11:23:31 2016 -0700

    qemu: Security fix CVE-2016-2858
    
    Signed-off-by: Armin Kuster <akuster at mvista.com>
    Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
 .../recipes-devtools/qemu/qemu/CVE-2016-2858.patch | 183 +++++++++++++++++++++
 ...ng_move_request_from_RngEgd_to_RngBackend.patch | 138 ++++++++++++++++
 ...t_queue_cleanup_from_RngEgd_to_RngBackend.patch | 150 +++++++++++++++++
 ...move_the_unused_request_cancellation_code.patch | 101 ++++++++++++
 meta/recipes-devtools/qemu/qemu_2.5.0.bb           |   4 +
 5 files changed, 576 insertions(+)

diff --git a/meta/recipes-devtools/qemu/qemu/CVE-2016-2858.patch b/meta/recipes-devtools/qemu/qemu/CVE-2016-2858.patch
new file mode 100644
index 0000000..d5395e6
--- /dev/null
+++ b/meta/recipes-devtools/qemu/qemu/CVE-2016-2858.patch
@@ -0,0 +1,183 @@
+From 60253ed1e6ec6d8e5ef2efe7bf755f475dce9956 Mon Sep 17 00:00:00 2001
+From: Ladi Prosek <lprosek at redhat.com>
+Date: Thu, 3 Mar 2016 09:37:18 +0100
+Subject: [PATCH] rng: add request queue support to rng-random
+
+Requests are now created in the RngBackend parent class and the
+code path is shared by both rng-egd and rng-random.
+
+This commit fixes the rng-random implementation which processed
+only one request at a time and simply discarded all but the most
+recent one. In the guest this manifested as delayed completion
+of reads from virtio-rng, i.e. a read was completed only after
+another read was issued.
+
+By switching rng-random to use the same request queue as rng-egd,
+the unsafe stack-based allocation of the entropy buffer is
+eliminated and replaced with g_malloc.
+
+Signed-off-by: Ladi Prosek <lprosek at redhat.com>
+Reviewed-by: Amit Shah <amit.shah at redhat.com>
+Message-Id: <1456994238-9585-5-git-send-email-lprosek at redhat.com>
+Signed-off-by: Amit Shah <amit.shah at redhat.com>
+
+Upstream-Status: Backport
+CVE: CVE-2016-2858
+
+http://git.qemu.org/?p=qemu.git;a=commit;h=60253ed1e6ec6d8e5ef2efe7bf755f475
+Signed-off-by: Armin Kuster <akuster at mvista.com>
+
+---
+ backends/rng-egd.c    | 16 ++--------------
+ backends/rng-random.c | 43 +++++++++++++++++++------------------------
+ backends/rng.c        | 13 ++++++++++++-
+ include/sysemu/rng.h  |  3 +--
+ 4 files changed, 34 insertions(+), 41 deletions(-)
+
+Index: qemu-2.5.0/backends/rng-egd.c
+===================================================================
+--- qemu-2.5.0.orig/backends/rng-egd.c
++++ qemu-2.5.0/backends/rng-egd.c
+@@ -26,20 +26,10 @@ typedef struct RngEgd
+     char *chr_name;
+ } RngEgd;
+ 
+-static void rng_egd_request_entropy(RngBackend *b, size_t size,
+-                                    EntropyReceiveFunc *receive_entropy,
+-                                    void *opaque)
++static void rng_egd_request_entropy(RngBackend *b, RngRequest *req)
+ {
+     RngEgd *s = RNG_EGD(b);
+-    RngRequest *req;
+-
+-    req = g_malloc(sizeof(*req));
+-
+-    req->offset = 0;
+-    req->size = size;
+-    req->receive_entropy = receive_entropy;
+-    req->opaque = opaque;
+-    req->data = g_malloc(req->size);
++    size_t size = req->size;
+ 
+     while (size > 0) {
+         uint8_t header[2];
+@@ -53,8 +43,6 @@ static void rng_egd_request_entropy(RngB
+ 
+         size -= len;
+     }
+-
+-    s->parent.requests = g_slist_append(s->parent.requests, req);
+ }
+ 
+ static int rng_egd_chr_can_read(void *opaque)
+Index: qemu-2.5.0/backends/rng-random.c
+===================================================================
+--- qemu-2.5.0.orig/backends/rng-random.c
++++ qemu-2.5.0/backends/rng-random.c
+@@ -21,10 +21,6 @@ struct RndRandom
+ 
+     int fd;
+     char *filename;
+-
+-    EntropyReceiveFunc *receive_func;
+-    void *opaque;
+-    size_t size;
+ };
+ 
+ /**
+@@ -37,36 +33,35 @@ struct RndRandom
+ static void entropy_available(void *opaque)
+ {
+     RndRandom *s = RNG_RANDOM(opaque);
+-    uint8_t buffer[s->size];
+-    ssize_t len;
+ 
+-    len = read(s->fd, buffer, s->size);
+-    if (len < 0 && errno == EAGAIN) {
+-        return;
+-    }
+-    g_assert(len != -1);
++    while (s->parent.requests != NULL) {
++        RngRequest *req = s->parent.requests->data;
++        ssize_t len;
++
++        len = read(s->fd, req->data, req->size);
++        if (len < 0 && errno == EAGAIN) {
++            return;
++        }
++        g_assert(len != -1);
++
++        req->receive_entropy(req->opaque, req->data, len);
+ 
+-    s->receive_func(s->opaque, buffer, len);
+-    s->receive_func = NULL;
++        rng_backend_finalize_request(&s->parent, req);
++    }
+ 
++    /* We've drained all requests, the fd handler can be reset. */
+     qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
+ }
+ 
+-static void rng_random_request_entropy(RngBackend *b, size_t size,
+-                                        EntropyReceiveFunc *receive_entropy,
+-                                        void *opaque)
++static void rng_random_request_entropy(RngBackend *b, RngRequest *req)
+ {
+     RndRandom *s = RNG_RANDOM(b);
+ 
+-    if (s->receive_func) {
+-        s->receive_func(s->opaque, NULL, 0);
++    if (s->parent.requests == NULL) {
++        /* If there are no pending requests yet, we need to
++         * install our fd handler. */
++        qemu_set_fd_handler(s->fd, entropy_available, NULL, s);
+     }
+-
+-    s->receive_func = receive_entropy;
+-    s->opaque = opaque;
+-    s->size = size;
+-
+-    qemu_set_fd_handler(s->fd, entropy_available, NULL, s);
+ }
+ 
+ static void rng_random_opened(RngBackend *b, Error **errp)
+Index: qemu-2.5.0/backends/rng.c
+===================================================================
+--- qemu-2.5.0.orig/backends/rng.c
++++ qemu-2.5.0/backends/rng.c
+@@ -19,9 +19,20 @@ void rng_backend_request_entropy(RngBack
+                                  void *opaque)
+ {
+     RngBackendClass *k = RNG_BACKEND_GET_CLASS(s);
++    RngRequest *req;
+ 
+     if (k->request_entropy) {
+-        k->request_entropy(s, size, receive_entropy, opaque);
++        req = g_malloc(sizeof(*req));
++
++        req->offset = 0;
++        req->size = size;
++        req->receive_entropy = receive_entropy;
++        req->opaque = opaque;
++        req->data = g_malloc(req->size);
++
++        k->request_entropy(s, req);
++
++        s->requests = g_slist_append(s->requests, req);
+     }
+ }
+ 
+Index: qemu-2.5.0/include/sysemu/rng.h
+===================================================================
+--- qemu-2.5.0.orig/include/sysemu/rng.h
++++ qemu-2.5.0/include/sysemu/rng.h
+@@ -46,8 +46,7 @@ struct RngBackendClass
+ {
+     ObjectClass parent_class;
+ 
+-    void (*request_entropy)(RngBackend *s, size_t size,
+-                            EntropyReceiveFunc *receive_entropy, void *opaque);
++    void (*request_entropy)(RngBackend *s, RngRequest *req);
+ 
+     void (*opened)(RngBackend *s, Error **errp);
+ };
diff --git a/meta/recipes-devtools/qemu/qemu/rng_move_request_from_RngEgd_to_RngBackend.patch b/meta/recipes-devtools/qemu/qemu/rng_move_request_from_RngEgd_to_RngBackend.patch
new file mode 100644
index 0000000..01928f9
--- /dev/null
+++ b/meta/recipes-devtools/qemu/qemu/rng_move_request_from_RngEgd_to_RngBackend.patch
@@ -0,0 +1,138 @@
+From 74074e8a7c60592cf1cc6469dbc2550d24aeded3 Mon Sep 17 00:00:00 2001
+From: Ladi Prosek <lprosek at redhat.com>
+Date: Thu, 3 Mar 2016 09:37:16 +0100
+Subject: [PATCH] rng: move request queue from RngEgd to RngBackend
+
+The 'requests' field now lives in the RngBackend parent class.
+There are no functional changes in this commit.
+
+Signed-off-by: Ladi Prosek <lprosek at redhat.com>
+Reviewed-by: Amit Shah <amit.shah at redhat.com>
+Message-Id: <1456994238-9585-3-git-send-email-lprosek at redhat.com>
+Signed-off-by: Amit Shah <amit.shah at redhat.com>
+
+Upstream-Status: Backport
+in support of CVE-2016-2858
+
+Signed-off-by: Armin Kuster <akuster at mvista.com>
+
+---
+ backends/rng-egd.c   | 28 +++++++++-------------------
+ include/sysemu/rng.h | 11 +++++++++++
+ 2 files changed, 20 insertions(+), 19 deletions(-)
+
+Index: qemu-2.5.0/backends/rng-egd.c
+===================================================================
+--- qemu-2.5.0.orig/backends/rng-egd.c
++++ qemu-2.5.0/backends/rng-egd.c
+@@ -24,19 +24,8 @@ typedef struct RngEgd
+ 
+     CharDriverState *chr;
+     char *chr_name;
+-
+-    GSList *requests;
+ } RngEgd;
+ 
+-typedef struct RngRequest
+-{
+-    EntropyReceiveFunc *receive_entropy;
+-    uint8_t *data;
+-    void *opaque;
+-    size_t offset;
+-    size_t size;
+-} RngRequest;
+-
+ static void rng_egd_request_entropy(RngBackend *b, size_t size,
+                                     EntropyReceiveFunc *receive_entropy,
+                                     void *opaque)
+@@ -65,7 +54,7 @@ static void rng_egd_request_entropy(RngB
+         size -= len;
+     }
+ 
+-    s->requests = g_slist_append(s->requests, req);
++    s->parent.requests = g_slist_append(s->parent.requests, req);
+ }
+ 
+ static void rng_egd_free_request(RngRequest *req)
+@@ -80,7 +69,7 @@ static int rng_egd_chr_can_read(void *op
+     GSList *i;
+     int size = 0;
+ 
+-    for (i = s->requests; i; i = i->next) {
++    for (i = s->parent.requests; i; i = i->next) {
+         RngRequest *req = i->data;
+         size += req->size - req->offset;
+     }
+@@ -93,8 +82,8 @@ static void rng_egd_chr_read(void *opaqu
+     RngEgd *s = RNG_EGD(opaque);
+     size_t buf_offset = 0;
+ 
+-    while (size > 0 && s->requests) {
+-        RngRequest *req = s->requests->data;
++    while (size > 0 && s->parent.requests) {
++        RngRequest *req = s->parent.requests->data;
+         int len = MIN(size, req->size - req->offset);
+ 
+         memcpy(req->data + req->offset, buf + buf_offset, len);
+@@ -103,7 +92,8 @@ static void rng_egd_chr_read(void *opaqu
+         size -= len;
+ 
+         if (req->offset == req->size) {
+-            s->requests = g_slist_remove_link(s->requests, s->requests);
++            s->parent.requests = g_slist_remove_link(s->parent.requests,
++                                                     s->parent.requests);
+ 
+             req->receive_entropy(req->opaque, req->data, req->size);
+ 
+@@ -116,12 +106,12 @@ static void rng_egd_free_requests(RngEgd
+ {
+     GSList *i;
+ 
+-    for (i = s->requests; i; i = i->next) {
++    for (i = s->parent.requests; i; i = i->next) {
+         rng_egd_free_request(i->data);
+     }
+ 
+-    g_slist_free(s->requests);
+-    s->requests = NULL;
++    g_slist_free(s->parent.requests);
++    s->parent.requests = NULL;
+ }
+ 
+ static void rng_egd_cancel_requests(RngBackend *b)
+Index: qemu-2.5.0/include/sysemu/rng.h
+===================================================================
+--- qemu-2.5.0.orig/include/sysemu/rng.h
++++ qemu-2.5.0/include/sysemu/rng.h
+@@ -25,6 +25,7 @@
+ #define RNG_BACKEND_CLASS(klass) \
+     OBJECT_CLASS_CHECK(RngBackendClass, (klass), TYPE_RNG_BACKEND)
+ 
++typedef struct RngRequest RngRequest;
+ typedef struct RngBackendClass RngBackendClass;
+ typedef struct RngBackend RngBackend;
+ 
+@@ -32,6 +33,15 @@ typedef void (EntropyReceiveFunc)(void *
+                                   const void *data,
+                                   size_t size);
+ 
++struct RngRequest
++{
++    EntropyReceiveFunc *receive_entropy;
++    uint8_t *data;
++    void *opaque;
++    size_t offset;
++    size_t size;
++};
++
+ struct RngBackendClass
+ {
+     ObjectClass parent_class;
+@@ -49,6 +59,7 @@ struct RngBackend
+ 
+     /*< protected >*/
+     bool opened;
++    GSList *requests;
+ };
+ 
+ /**
diff --git a/meta/recipes-devtools/qemu/qemu/rng_move_request_queue_cleanup_from_RngEgd_to_RngBackend.patch b/meta/recipes-devtools/qemu/qemu/rng_move_request_queue_cleanup_from_RngEgd_to_RngBackend.patch
new file mode 100644
index 0000000..afe8bf6
--- /dev/null
+++ b/meta/recipes-devtools/qemu/qemu/rng_move_request_queue_cleanup_from_RngEgd_to_RngBackend.patch
@@ -0,0 +1,150 @@
+From 9f14b0add1dcdbfa2ee61051d068211fb0a1fcc9 Mon Sep 17 00:00:00 2001
+From: Ladi Prosek <lprosek at redhat.com>
+Date: Thu, 3 Mar 2016 09:37:17 +0100
+Subject: [PATCH] rng: move request queue cleanup from RngEgd to RngBackend
+
+RngBackend is now in charge of cleaning up the linked list on
+instance finalization. It also exposes a function to finalize
+individual RngRequest instances, called by its child classes.
+
+Signed-off-by: Ladi Prosek <lprosek at redhat.com>
+Reviewed-by: Amit Shah <amit.shah at redhat.com>
+Message-Id: <1456994238-9585-4-git-send-email-lprosek at redhat.com>
+Signed-off-by: Amit Shah <amit.shah at redhat.com>
+
+Upstream-Status: Backport
+in support of CVE-2016-2858
+
+Signed-off-by: Armin Kuster <akuster at mvista.com>
+
+---
+ backends/rng-egd.c   | 25 +------------------------
+ backends/rng.c       | 32 ++++++++++++++++++++++++++++++++
+ include/sysemu/rng.h | 12 ++++++++++++
+ 3 files changed, 45 insertions(+), 24 deletions(-)
+
+Index: qemu-2.5.0/backends/rng-egd.c
+===================================================================
+--- qemu-2.5.0.orig/backends/rng-egd.c
++++ qemu-2.5.0/backends/rng-egd.c
+@@ -57,12 +57,6 @@ static void rng_egd_request_entropy(RngB
+     s->parent.requests = g_slist_append(s->parent.requests, req);
+ }
+ 
+-static void rng_egd_free_request(RngRequest *req)
+-{
+-    g_free(req->data);
+-    g_free(req);
+-}
+-
+ static int rng_egd_chr_can_read(void *opaque)
+ {
+     RngEgd *s = RNG_EGD(opaque);
+@@ -92,28 +86,13 @@ static void rng_egd_chr_read(void *opaqu
+         size -= len;
+ 
+         if (req->offset == req->size) {
+-            s->parent.requests = g_slist_remove_link(s->parent.requests,
+-                                                     s->parent.requests);
+ 
+             req->receive_entropy(req->opaque, req->data, req->size);
+-
+-            rng_egd_free_request(req);
++            rng_backend_finalize_request(&s->parent, req);
+         }
+     }
+ }
+ 
+-static void rng_egd_free_requests(RngEgd *s)
+-{
+-    GSList *i;
+-
+-    for (i = s->parent.requests; i; i = i->next) {
+-        rng_egd_free_request(i->data);
+-    }
+-
+-    g_slist_free(s->parent.requests);
+-    s->parent.requests = NULL;
+-}
+-
+ static void rng_egd_opened(RngBackend *b, Error **errp)
+ {
+     RngEgd *s = RNG_EGD(b);
+@@ -182,8 +161,6 @@ static void rng_egd_finalize(Object *obj
+     }
+ 
+     g_free(s->chr_name);
+-
+-    rng_egd_free_requests(s);
+ }
+ 
+ static void rng_egd_class_init(ObjectClass *klass, void *data)
+Index: qemu-2.5.0/backends/rng.c
+===================================================================
+--- qemu-2.5.0.orig/backends/rng.c
++++ qemu-2.5.0/backends/rng.c
+@@ -63,6 +63,30 @@ static void rng_backend_prop_set_opened(
+     s->opened = true;
+ }
+ 
++static void rng_backend_free_request(RngRequest *req)
++{
++    g_free(req->data);
++    g_free(req);
++}
++
++static void rng_backend_free_requests(RngBackend *s)
++{
++    GSList *i;
++
++    for (i = s->requests; i; i = i->next) {
++        rng_backend_free_request(i->data);
++    }
++
++    g_slist_free(s->requests);
++    s->requests = NULL;
++}
++
++void rng_backend_finalize_request(RngBackend *s, RngRequest *req)
++{
++    s->requests = g_slist_remove(s->requests, req);
++    rng_backend_free_request(req);
++}
++
+ static void rng_backend_init(Object *obj)
+ {
+     object_property_add_bool(obj, "opened",
+@@ -71,6 +95,13 @@ static void rng_backend_init(Object *obj
+                              NULL);
+ }
+ 
++static void rng_backend_finalize(Object *obj)
++{
++    RngBackend *s = RNG_BACKEND(obj);
++
++    rng_backend_free_requests(s);
++}
++
+ static void rng_backend_class_init(ObjectClass *oc, void *data)
+ {
+     UserCreatableClass *ucc = USER_CREATABLE_CLASS(oc);
+@@ -83,6 +114,7 @@ static const TypeInfo rng_backend_info =
+     .parent = TYPE_OBJECT,
+     .instance_size = sizeof(RngBackend),
+     .instance_init = rng_backend_init,
++    .instance_finalize = rng_backend_finalize,
+     .class_size = sizeof(RngBackendClass),
+     .class_init = rng_backend_class_init,
+     .abstract = true,
+Index: qemu-2.5.0/include/sysemu/rng.h
+===================================================================
+--- qemu-2.5.0.orig/include/sysemu/rng.h
++++ qemu-2.5.0/include/sysemu/rng.h
+@@ -61,6 +61,7 @@ struct RngBackend
+     GSList *requests;
+ };
+ 
++
+ /**
+  * rng_backend_request_entropy:
+  * @s: the backend to request entropy from
diff --git a/meta/recipes-devtools/qemu/qemu/rng_remove_the_unused_request_cancellation_code.patch b/meta/recipes-devtools/qemu/qemu/rng_remove_the_unused_request_cancellation_code.patch
new file mode 100644
index 0000000..51296bc
--- /dev/null
+++ b/meta/recipes-devtools/qemu/qemu/rng_remove_the_unused_request_cancellation_code.patch
@@ -0,0 +1,101 @@
+From 3c52ddcdc548e7fbe65112d8a7bdc9cd105b4750 Mon Sep 17 00:00:00 2001
+From: Ladi Prosek <lprosek at redhat.com>
+Date: Thu, 3 Mar 2016 09:37:15 +0100
+Subject: [PATCH] rng: remove the unused request cancellation code
+
+rng_backend_cancel_requests had no callers and none of the code
+deleted in this commit ever ran.
+
+Signed-off-by: Ladi Prosek <lprosek at redhat.com>
+Reviewed-by: Amit Shah <amit.shah at redhat.com>
+Message-Id: <1456994238-9585-2-git-send-email-lprosek at redhat.com>
+Signed-off-by: Amit Shah <amit.shah at redhat.com>
+
+Upstream-Status: Backport
+in support of CVE-2016-2858
+
+Signed-off-by: Armin Kuster <akuster at mvista.com>
+
+---
+ backends/rng-egd.c   | 12 ------------
+ backends/rng.c       |  9 ---------
+ include/sysemu/rng.h | 11 -----------
+ 3 files changed, 32 deletions(-)
+
+Index: qemu-2.5.0/backends/rng-egd.c
+===================================================================
+--- qemu-2.5.0.orig/backends/rng-egd.c
++++ qemu-2.5.0/backends/rng-egd.c
+@@ -114,17 +114,6 @@ static void rng_egd_free_requests(RngEgd
+     s->parent.requests = NULL;
+ }
+ 
+-static void rng_egd_cancel_requests(RngBackend *b)
+-{
+-    RngEgd *s = RNG_EGD(b);
+-
+-    /* We simply delete the list of pending requests.  If there is data in the 
+-     * queue waiting to be read, this is okay, because there will always be
+-     * more data than we requested originally
+-     */
+-    rng_egd_free_requests(s);
+-}
+-
+ static void rng_egd_opened(RngBackend *b, Error **errp)
+ {
+     RngEgd *s = RNG_EGD(b);
+@@ -202,7 +191,6 @@ static void rng_egd_class_init(ObjectCla
+     RngBackendClass *rbc = RNG_BACKEND_CLASS(klass);
+ 
+     rbc->request_entropy = rng_egd_request_entropy;
+-    rbc->cancel_requests = rng_egd_cancel_requests;
+     rbc->opened = rng_egd_opened;
+ }
+ 
+Index: qemu-2.5.0/backends/rng.c
+===================================================================
+--- qemu-2.5.0.orig/backends/rng.c
++++ qemu-2.5.0/backends/rng.c
+@@ -25,15 +25,6 @@ void rng_backend_request_entropy(RngBack
+     }
+ }
+ 
+-void rng_backend_cancel_requests(RngBackend *s)
+-{
+-    RngBackendClass *k = RNG_BACKEND_GET_CLASS(s);
+-
+-    if (k->cancel_requests) {
+-        k->cancel_requests(s);
+-    }
+-}
+-
+ static bool rng_backend_prop_get_opened(Object *obj, Error **errp)
+ {
+     RngBackend *s = RNG_BACKEND(obj);
+Index: qemu-2.5.0/include/sysemu/rng.h
+===================================================================
+--- qemu-2.5.0.orig/include/sysemu/rng.h
++++ qemu-2.5.0/include/sysemu/rng.h
+@@ -48,7 +48,6 @@ struct RngBackendClass
+ 
+     void (*request_entropy)(RngBackend *s, size_t size,
+                             EntropyReceiveFunc *receive_entropy, void *opaque);
+-    void (*cancel_requests)(RngBackend *s);
+ 
+     void (*opened)(RngBackend *s, Error **errp);
+ };
+@@ -80,14 +79,4 @@ struct RngBackend
+ void rng_backend_request_entropy(RngBackend *s, size_t size,
+                                  EntropyReceiveFunc *receive_entropy,
+                                  void *opaque);
+-
+-/**
+- * rng_backend_cancel_requests:
+- * @s: the backend to cancel all pending requests in
+- *
+- * Cancels all pending requests submitted by @rng_backend_request_entropy.  This
+- * should be used by a device during reset or in preparation for live migration
+- * to stop tracking any request.
+- */
+-void rng_backend_cancel_requests(RngBackend *s);
+ #endif
diff --git a/meta/recipes-devtools/qemu/qemu_2.5.0.bb b/meta/recipes-devtools/qemu/qemu_2.5.0.bb
index 7622386..03a6cbe 100644
--- a/meta/recipes-devtools/qemu/qemu_2.5.0.bb
+++ b/meta/recipes-devtools/qemu/qemu_2.5.0.bb
@@ -12,6 +12,10 @@ SRC_URI += "file://configure-fix-Darwin-target-detection.patch \
             file://CVE-2016-2198.patch \
             file://pathlimit.patch \
             file://CVE-2016-2857.patch \
+            file://rng_move_request_from_RngEgd_to_RngBackend.patch \
+            file://rng_remove_the_unused_request_cancellation_code.patch \
+            file://rng_move_request_queue_cleanup_from_RngEgd_to_RngBackend.patch \
+            file://CVE-2016-2858.patch \
            "
 SRC_URI_prepend = "http://wiki.qemu-project.org/download/${BP}.tar.bz2"
 SRC_URI[md5sum] = "f469f2330bbe76e3e39db10e9ac4f8db"

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