app-emulation/qemu: drop vulnerable 2.5.1, bug #592430, and 19 others

Package-Manager: portage-2.2.28

10 files changed, 0 insertions, 915 deletions

diff --git a/app-emulation/qemu/files/qemu-2.5.0-CVE-2015-8558.patch b/app-emulation/qemu/files/qemu-2.5.0-CVE-2015-8558.patch
deleted file mode 100644
index fbc6a0add3d1..000000000000
--- a/app-emulation/qemu/files/qemu-2.5.0-CVE-2015-8558.patch
+++ /dev/null
@@ -1,50 +0,0 @@
-https://bugs.gentoo.org/568246
-
-From 156a2e4dbffa85997636a7a39ef12da6f1b40254 Mon Sep 17 00:00:00 2001
-From: Gerd Hoffmann <kraxel@redhat.com>
-Date: Mon, 14 Dec 2015 09:21:23 +0100
-Subject: [PATCH] ehci: make idt processing more robust
-
-Make ehci_process_itd return an error in case we didn't do any actual
-iso transfer because we've found no active transaction.  That'll avoid
-ehci happily run in circles forever if the guest builds a loop out of
-idts.
-
-This is CVE-2015-8558.
-
-Cc: qemu-stable@nongnu.org
-Reported-by: Qinghao Tang <luodalongde@gmail.com>
-Tested-by: P J P <ppandit@redhat.com>
-Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
----
- hw/usb/hcd-ehci.c | 5 +++--
- 1 file changed, 3 insertions(+), 2 deletions(-)
-
-diff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c
-index 4e2161b..d07f228 100644
---- a/hw/usb/hcd-ehci.c
-+++ b/hw/usb/hcd-ehci.c
-@@ -1389,7 +1389,7 @@ static int ehci_process_itd(EHCIState *ehci,
- {
-     USBDevice *dev;
-     USBEndpoint *ep;
--    uint32_t i, len, pid, dir, devaddr, endp;
-+    uint32_t i, len, pid, dir, devaddr, endp, xfers = 0;
-     uint32_t pg, off, ptr1, ptr2, max, mult;
- 
-     ehci->periodic_sched_active = PERIODIC_ACTIVE;
-@@ -1479,9 +1479,10 @@ static int ehci_process_itd(EHCIState *ehci,
-                 ehci_raise_irq(ehci, USBSTS_INT);
-             }
-             itd->transact[i] &= ~ITD_XACT_ACTIVE;
-+            xfers++;
-         }
-     }
--    return 0;
-+    return xfers ? 0 : -1;
- }
- 
- 
--- 
-2.6.2
-
diff --git a/app-emulation/qemu/files/qemu-2.5.0-CVE-2016-2198.patch b/app-emulation/qemu/files/qemu-2.5.0-CVE-2016-2198.patch
deleted file mode 100644
index d179c33840f7..000000000000
--- a/app-emulation/qemu/files/qemu-2.5.0-CVE-2016-2198.patch
+++ /dev/null
@@ -1,46 +0,0 @@
-From dff0367cf66f489aa772320fa2937a8cac1ca30d Mon Sep 17 00:00:00 2001
-From: Prasad J Pandit <pjp@fedoraproject.org>
-Date: Fri, 29 Jan 2016 18:30:34 +0530
-Subject: [PATCH] usb: ehci: add capability mmio write function
-
-USB Ehci emulation supports host controller capability registers.
-But its mmio '.write' function was missing, which lead to a null
-pointer dereference issue. Add a do nothing 'ehci_caps_write'
-definition to avoid it; Do nothing because capability registers
-are Read Only(RO).
-
-Reported-by: Zuozhi Fzz <zuozhi.fzz@alibaba-inc.com>
-Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
-Message-id: 1454072434-16045-1-git-send-email-ppandit@redhat.com
-Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
----
- hw/usb/hcd-ehci.c | 6 ++++++
- 1 file changed, 6 insertions(+)
-
-diff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c
-index 1b50601..0f95d0d 100644
---- a/hw/usb/hcd-ehci.c
-+++ b/hw/usb/hcd-ehci.c
-@@ -895,6 +895,11 @@ static uint64_t ehci_caps_read(void *ptr, hwaddr addr,
-     return s->caps[addr];
- }
- 
-+static void ehci_caps_write(void *ptr, hwaddr addr,
-+                             uint64_t val, unsigned size)
-+{
-+}
-+
- static uint64_t ehci_opreg_read(void *ptr, hwaddr addr,
-                                 unsigned size)
- {
-@@ -2315,6 +2320,7 @@ static void ehci_frame_timer(void *opaque)
- 
- static const MemoryRegionOps ehci_mmio_caps_ops = {
-     .read = ehci_caps_read,
-+    .write = ehci_caps_write,
-     .valid.min_access_size = 1,
-     .valid.max_access_size = 4,
-     .impl.min_access_size = 1,
--- 
-2.7.4
-
diff --git a/app-emulation/qemu/files/qemu-2.5.0-rng-stack-corrupt-0.patch b/app-emulation/qemu/files/qemu-2.5.0-rng-stack-corrupt-0.patch
deleted file mode 100644
index 684f6ad3128d..000000000000
--- a/app-emulation/qemu/files/qemu-2.5.0-rng-stack-corrupt-0.patch
+++ /dev/null
@@ -1,98 +0,0 @@
-From 3c52ddcdc548e7fbe65112d8a7bdc9cd105b4750 Mon Sep 17 00:00:00 2001
-From: Ladi Prosek <lprosek@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@redhat.com>
-Reviewed-by: Amit Shah <amit.shah@redhat.com>
-Message-Id: <1456994238-9585-2-git-send-email-lprosek@redhat.com>
-Signed-off-by: Amit Shah <amit.shah@redhat.com>
----
- backends/rng-egd.c   | 12 ------------
- backends/rng.c       |  9 ---------
- include/sysemu/rng.h | 11 -----------
- 3 files changed, 32 deletions(-)
-
-diff --git a/backends/rng-egd.c b/backends/rng-egd.c
-index 2de5cd5..0b2976a 100644
---- a/backends/rng-egd.c
-+++ b/backends/rng-egd.c
-@@ -125,17 +125,6 @@ static void rng_egd_free_requests(RngEgd *s)
-     s->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);
-@@ -213,7 +202,6 @@ static void rng_egd_class_init(ObjectClass *klass, void *data)
-     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;
- }
- 
-diff --git a/backends/rng.c b/backends/rng.c
-index b7820ef..2f2f3ee 100644
---- a/backends/rng.c
-+++ b/backends/rng.c
-@@ -26,15 +26,6 @@ void rng_backend_request_entropy(RngBackend *s, size_t size,
-     }
- }
- 
--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);
-diff --git a/include/sysemu/rng.h b/include/sysemu/rng.h
-index 858be8c..87b3ebe 100644
---- a/include/sysemu/rng.h
-+++ b/include/sysemu/rng.h
-@@ -37,7 +37,6 @@ 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);
- };
-@@ -68,14 +67,4 @@ 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
--- 
-2.7.4
-
diff --git a/app-emulation/qemu/files/qemu-2.5.0-rng-stack-corrupt-1.patch b/app-emulation/qemu/files/qemu-2.5.0-rng-stack-corrupt-1.patch
deleted file mode 100644
index 44ba8a7d7f4d..000000000000
--- a/app-emulation/qemu/files/qemu-2.5.0-rng-stack-corrupt-1.patch
+++ /dev/null
@@ -1,135 +0,0 @@
-From 74074e8a7c60592cf1cc6469dbc2550d24aeded3 Mon Sep 17 00:00:00 2001
-From: Ladi Prosek <lprosek@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@redhat.com>
-Reviewed-by: Amit Shah <amit.shah@redhat.com>
-Message-Id: <1456994238-9585-3-git-send-email-lprosek@redhat.com>
-Signed-off-by: Amit Shah <amit.shah@redhat.com>
----
- backends/rng-egd.c   | 28 +++++++++-------------------
- include/sysemu/rng.h | 11 +++++++++++
- 2 files changed, 20 insertions(+), 19 deletions(-)
-
-diff --git a/backends/rng-egd.c b/backends/rng-egd.c
-index 0b2976a..b061362 100644
---- a/backends/rng-egd.c
-+++ b/backends/rng-egd.c
-@@ -25,19 +25,8 @@ 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)
-@@ -66,7 +55,7 @@ static void rng_egd_request_entropy(RngBackend *b, size_t size,
-         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)
-@@ -81,7 +70,7 @@ static int rng_egd_chr_can_read(void *opaque)
-     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;
-     }
-@@ -94,8 +83,8 @@ static void rng_egd_chr_read(void *opaque, const uint8_t *buf, int size)
-     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);
-@@ -104,7 +93,8 @@ static void rng_egd_chr_read(void *opaque, const uint8_t *buf, int size)
-         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);
- 
-@@ -117,12 +107,12 @@ static void rng_egd_free_requests(RngEgd *s)
- {
-     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_opened(RngBackend *b, Error **errp)
-diff --git a/include/sysemu/rng.h b/include/sysemu/rng.h
-index 87b3ebe..c744d82 100644
---- a/include/sysemu/rng.h
-+++ b/include/sysemu/rng.h
-@@ -24,6 +24,7 @@
- #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;
- 
-@@ -31,6 +32,15 @@ typedef void (EntropyReceiveFunc)(void *opaque,
-                                   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;
-@@ -47,6 +57,7 @@ struct RngBackend
- 
-     /*< protected >*/
-     bool opened;
-+    GSList *requests;
- };
- 
- /**
--- 
-2.7.4
-
diff --git a/app-emulation/qemu/files/qemu-2.5.0-rng-stack-corrupt-2.patch b/app-emulation/qemu/files/qemu-2.5.0-rng-stack-corrupt-2.patch
deleted file mode 100644
index 1cffcc5c4398..000000000000
--- a/app-emulation/qemu/files/qemu-2.5.0-rng-stack-corrupt-2.patch
+++ /dev/null
@@ -1,155 +0,0 @@
-From 9f14b0add1dcdbfa2ee61051d068211fb0a1fcc9 Mon Sep 17 00:00:00 2001
-From: Ladi Prosek <lprosek@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@redhat.com>
-Reviewed-by: Amit Shah <amit.shah@redhat.com>
-Message-Id: <1456994238-9585-4-git-send-email-lprosek@redhat.com>
-Signed-off-by: Amit Shah <amit.shah@redhat.com>
----
- backends/rng-egd.c   | 25 +------------------------
- backends/rng.c       | 32 ++++++++++++++++++++++++++++++++
- include/sysemu/rng.h | 12 ++++++++++++
- 3 files changed, 45 insertions(+), 24 deletions(-)
-
-diff --git a/backends/rng-egd.c b/backends/rng-egd.c
-index b061362..8f2bd16 100644
---- a/backends/rng-egd.c
-+++ b/backends/rng-egd.c
-@@ -58,12 +58,6 @@ static void rng_egd_request_entropy(RngBackend *b, size_t size,
-     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);
-@@ -93,28 +87,13 @@ static void rng_egd_chr_read(void *opaque, const uint8_t *buf, int size)
-         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);
-@@ -183,8 +162,6 @@ 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)
-diff --git a/backends/rng.c b/backends/rng.c
-index 2f2f3ee..014cb9d 100644
---- a/backends/rng.c
-+++ b/backends/rng.c
-@@ -64,6 +64,30 @@ static void rng_backend_prop_set_opened(Object *obj, bool value, Error **errp)
-     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",
-@@ -72,6 +96,13 @@ 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);
-@@ -84,6 +115,7 @@ 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,
-diff --git a/include/sysemu/rng.h b/include/sysemu/rng.h
-index c744d82..08a2eda 100644
---- a/include/sysemu/rng.h
-+++ b/include/sysemu/rng.h
-@@ -78,4 +79,15 @@ struct RngBackend
- void rng_backend_request_entropy(RngBackend *s, size_t size,
-                                  EntropyReceiveFunc *receive_entropy,
-                                  void *opaque);
-+
-+/**
-+ * rng_backend_free_request:
-+ * @s: the backend that created the request
-+ * @req: the request to finalize
-+ *
-+ * Used by child rng backend classes to finalize requests once they've been
-+ * processed. The request is removed from the list of active requests and
-+ * deleted.
-+ */
-+void rng_backend_finalize_request(RngBackend *s, RngRequest *req);
- #endif
--- 
-2.7.4
-
diff --git a/app-emulation/qemu/files/qemu-2.5.0-rng-stack-corrupt-3.patch b/app-emulation/qemu/files/qemu-2.5.0-rng-stack-corrupt-3.patch
deleted file mode 100644
index ca9340a471d7..000000000000
--- a/app-emulation/qemu/files/qemu-2.5.0-rng-stack-corrupt-3.patch
+++ /dev/null
@@ -1,179 +0,0 @@
-From 60253ed1e6ec6d8e5ef2efe7bf755f475dce9956 Mon Sep 17 00:00:00 2001
-From: Ladi Prosek <lprosek@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@redhat.com>
-Reviewed-by: Amit Shah <amit.shah@redhat.com>
-Message-Id: <1456994238-9585-5-git-send-email-lprosek@redhat.com>
-Signed-off-by: Amit Shah <amit.shah@redhat.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(-)
-
-diff --git a/backends/rng-egd.c b/backends/rng-egd.c
-index 8f2bd16..30332ed 100644
---- a/backends/rng-egd.c
-+++ b/backends/rng-egd.c
-@@ -27,20 +27,10 @@ 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];
-@@ -54,8 +44,6 @@ static void rng_egd_request_entropy(RngBackend *b, size_t size,
- 
-         size -= len;
-     }
--
--    s->parent.requests = g_slist_append(s->parent.requests, req);
- }
- 
- static int rng_egd_chr_can_read(void *opaque)
-diff --git a/backends/rng-random.c b/backends/rng-random.c
-index 8cdad6a..a6cb385 100644
---- a/backends/rng-random.c
-+++ b/backends/rng-random.c
-@@ -22,10 +22,6 @@ struct RndRandom
- 
-     int fd;
-     char *filename;
--
--    EntropyReceiveFunc *receive_func;
--    void *opaque;
--    size_t size;
- };
- 
- /**
-@@ -38,36 +34,35 @@ 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);
- 
--    s->receive_func(s->opaque, buffer, len);
--    s->receive_func = NULL;
-+        req->receive_entropy(req->opaque, req->data, len);
- 
-+        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)
-diff --git a/backends/rng.c b/backends/rng.c
-index 014cb9d..277a41b 100644
---- a/backends/rng.c
-+++ b/backends/rng.c
-@@ -20,9 +20,20 @@ void rng_backend_request_entropy(RngBackend *s, size_t size,
-                                  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);
-     }
- }
- 
-diff --git a/include/sysemu/rng.h b/include/sysemu/rng.h
-index 08a2eda..4fffd68 100644
---- a/include/sysemu/rng.h
-+++ b/include/sysemu/rng.h
-@@ -45,8 +45,7 @@ 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);
- };
--- 
-2.7.4
-
diff --git a/app-emulation/qemu/files/qemu-2.5.1-CVE-2015-8558.patch b/app-emulation/qemu/files/qemu-2.5.1-CVE-2015-8558.patch
deleted file mode 100644
index cf1a4c3182ac..000000000000
--- a/app-emulation/qemu/files/qemu-2.5.1-CVE-2015-8558.patch
+++ /dev/null
@@ -1,107 +0,0 @@
-https://bugs.gentoo.org/580426
-https://bugs.gentoo.org/568246
-
-From a49923d2837d20510d645d3758f1ad87c32d0730 Mon Sep 17 00:00:00 2001
-From: Gerd Hoffmann <kraxel@redhat.com>
-Date: Mon, 18 Apr 2016 09:20:54 +0200
-Subject: [PATCH] Revert "ehci: make idt processing more robust"
-
-This reverts commit 156a2e4dbffa85997636a7a39ef12da6f1b40254.
-
-Breaks FreeBSD.
-
-Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
----
- hw/usb/hcd-ehci.c | 5 ++---
- 1 file changed, 2 insertions(+), 3 deletions(-)
-
-diff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c
-index d5c0e1c..43a8f7a 100644
---- a/hw/usb/hcd-ehci.c
-+++ b/hw/usb/hcd-ehci.c
-@@ -1397,7 +1397,7 @@ static int ehci_process_itd(EHCIState *ehci,
- {
-     USBDevice *dev;
-     USBEndpoint *ep;
--    uint32_t i, len, pid, dir, devaddr, endp, xfers = 0;
-+    uint32_t i, len, pid, dir, devaddr, endp;
-     uint32_t pg, off, ptr1, ptr2, max, mult;
- 
-     ehci->periodic_sched_active = PERIODIC_ACTIVE;
-@@ -1489,10 +1489,9 @@ static int ehci_process_itd(EHCIState *ehci,
-                 ehci_raise_irq(ehci, USBSTS_INT);
-             }
-             itd->transact[i] &= ~ITD_XACT_ACTIVE;
--            xfers++;
-         }
-     }
--    return xfers ? 0 : -1;
-+    return 0;
- }
- 
- 
--- 
-2.7.4
-
-From 1ae3f2f178087711f9591350abad133525ba93f2 Mon Sep 17 00:00:00 2001
-From: Gerd Hoffmann <kraxel@redhat.com>
-Date: Mon, 18 Apr 2016 09:11:38 +0200
-Subject: [PATCH] ehci: apply limit to iTD/sidt descriptors
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-Commit "156a2e4 ehci: make idt processing more robust" tries to avoid a
-DoS by the guest (create a circular iTD queue and let qemu ehci
-emulation run in circles forever).  Unfortunately this has two problems:
-First it misses the case of siTDs, and second it reportedly breaks
-FreeBSD.
-
-So lets go for a different approach: just count the number of iTDs and
-siTDs we have seen per frame and apply a limit.  That should really
-catch all cases now.
-
-Reported-by: 杜少博 <dushaobo@360.cn>
-Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
----
- hw/usb/hcd-ehci.c | 6 +++++-
- 1 file changed, 5 insertions(+), 1 deletion(-)
-
-diff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c
-index 159f58d..d5c0e1c 100644
---- a/hw/usb/hcd-ehci.c
-+++ b/hw/usb/hcd-ehci.c
-@@ -2011,6 +2011,7 @@ static int ehci_state_writeback(EHCIQueue *q)
- static void ehci_advance_state(EHCIState *ehci, int async)
- {
-     EHCIQueue *q = NULL;
-+    int itd_count = 0;
-     int again;
- 
-     do {
-@@ -2035,10 +2036,12 @@ static void ehci_advance_state(EHCIState *ehci, int async)
- 
-         case EST_FETCHITD:
-             again = ehci_state_fetchitd(ehci, async);
-+            itd_count++;
-             break;
- 
-         case EST_FETCHSITD:
-             again = ehci_state_fetchsitd(ehci, async);
-+            itd_count++;
-             break;
- 
-         case EST_ADVANCEQUEUE:
-@@ -2087,7 +2090,8 @@ static void ehci_advance_state(EHCIState *ehci, int async)
-             break;
-         }
- 
--        if (again < 0) {
-+        if (again < 0 || itd_count > 16) {
-+            /* TODO: notify guest (raise HSE irq?) */
-             fprintf(stderr, "processing error - resetting ehci HC\n");
-             ehci_reset(ehci);
-             again = 0;
--- 
-2.7.4
-
diff --git a/app-emulation/qemu/files/qemu-2.5.1-CVE-2016-4020.patch b/app-emulation/qemu/files/qemu-2.5.1-CVE-2016-4020.patch
deleted file mode 100644
index e3115c1ba9a7..000000000000
--- a/app-emulation/qemu/files/qemu-2.5.1-CVE-2016-4020.patch
+++ /dev/null
@@ -1,16 +0,0 @@
-https://lists.gnu.org/archive/html/qemu-devel/2016-04/msg01106.html
-https://bugs.gentoo.org/580040
-
-diff --git a/hw/i386/kvmvapic.c b/hw/i386/kvmvapic.c
-index c69f374..ff1e31a 100644
---- a/hw/i386/kvmvapic.c
-+++ b/hw/i386/kvmvapic.c
-@@ -394,7 +394,7 @@ static void patch_instruction(VAPICROMState *s, X86CPU *cpu, target_ulong ip)
-     CPUX86State *env = &cpu->env;
-     VAPICHandlers *handlers;
-     uint8_t opcode[2];
--    uint32_t imm32;
-+    uint32_t imm32 = 0;
-     target_ulong current_pc = 0;
-     target_ulong current_cs_base = 0;
-     int current_flags = 0;
diff --git a/app-emulation/qemu/files/qemu-2.5.1-stellaris_enet-overflow.patch b/app-emulation/qemu/files/qemu-2.5.1-stellaris_enet-overflow.patch
deleted file mode 100644
index ab7d3f3e2990..000000000000
--- a/app-emulation/qemu/files/qemu-2.5.1-stellaris_enet-overflow.patch
+++ /dev/null
@@ -1,47 +0,0 @@
-From 3a15cc0e1ee7168db0782133d2607a6bfa422d66 Mon Sep 17 00:00:00 2001
-From: Prasad J Pandit <pjp@fedoraproject.org>
-Date: Fri, 8 Apr 2016 11:33:48 +0530
-Subject: [PATCH] net: stellaris_enet: check packet length against receive
- buffer
-
-When receiving packets over Stellaris ethernet controller, it
-uses receive buffer of size 2048 bytes. In case the controller
-accepts large(MTU) packets, it could lead to memory corruption.
-Add check to avoid it.
-
-Reported-by: Oleksandr Bazhaniuk <oleksandr.bazhaniuk@intel.com>
-Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
-Message-id: 1460095428-22698-1-git-send-email-ppandit@redhat.com
-Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
-Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
----
- hw/net/stellaris_enet.c | 12 +++++++++++-
- 1 file changed, 11 insertions(+), 1 deletion(-)
-
-diff --git a/hw/net/stellaris_enet.c b/hw/net/stellaris_enet.c
-index 84cf60b..6880894 100644
---- a/hw/net/stellaris_enet.c
-+++ b/hw/net/stellaris_enet.c
-@@ -236,8 +236,18 @@ static ssize_t stellaris_enet_receive(NetClientState *nc, const uint8_t *buf, si
-     n = s->next_packet + s->np;
-     if (n >= 31)
-         n -= 31;
--    s->np++;
- 
-+    if (size >= sizeof(s->rx[n].data) - 6) {
-+        /* If the packet won't fit into the
-+         * emulated 2K RAM, this is reported
-+         * as a FIFO overrun error.
-+         */
-+        s->ris |= SE_INT_FOV;
-+        stellaris_enet_update(s);
-+        return -1;
-+    }
-+
-+    s->np++;
-     s->rx[n].len = size + 6;
-     p = s->rx[n].data;
-     *(p++) = (size + 6);
--- 
-2.7.4
-
diff --git a/app-emulation/qemu/files/qemu-2.5.1-xfs-linux-headers.patch b/app-emulation/qemu/files/qemu-2.5.1-xfs-linux-headers.patch
deleted file mode 100644
index 743171b49dd4..000000000000
--- a/app-emulation/qemu/files/qemu-2.5.1-xfs-linux-headers.patch
+++ /dev/null
@@ -1,82 +0,0 @@
-https://bugs.gentoo.org/577810
-
-From 277abf15a60f7653bfb05ffb513ed74ffdaea1b7 Mon Sep 17 00:00:00 2001
-From: Jan Vesely <jano.vesely@gmail.com>
-Date: Fri, 29 Apr 2016 13:15:23 -0400
-Subject: [PATCH] configure: Check if struct fsxattr is available from linux
- header
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-Fixes build failure with --enable-xfsctl and
-new linux headers (>=4.5) and older xfsprogs(<4.5):
-In file included from /usr/include/xfs/xfs.h:38:0,
-                 from /var/tmp/portage/app-emulation/qemu-2.5.0-r1/work/qemu-2.5.0/block/raw-posix.c:97:
-/usr/include/xfs/xfs_fs.h:42:8: error: redefinition of ‘struct fsxattr’
- struct fsxattr {
-        ^
-In file included from /var/tmp/portage/app-emulation/qemu-2.5.0-r1/work/qemu-2.5.0/block/raw-posix.c:60:0:
-/usr/include/linux/fs.h:155:8: note: originally defined here
- struct fsxattr {
-
-This is really a bug in the system headers, but we can work around it
-by defining HAVE_FSXATTR in the QEMU headers if linux/fs.h provides
-the struct, so that xfs_fs.h doesn't try to define it as well.
-
-CC: qemu-trivial@nongnu.org
-CC: Markus Armbruster <armbru@redhat.com>
-CC: Peter Maydell <peter.maydell@linaro.org>
-CC: Stefan Weil <sw@weilnetz.de>
-Tested-by: Stefan Weil <sw@weilnetz.de>
-Signed-off-by: Jan Vesely <jano.vesely@gmail.com>
-[PMM: adjusted commit message, comments]
-Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
----
- configure | 23 +++++++++++++++++++++++
- 1 file changed, 23 insertions(+)
-
-diff --git a/configure b/configure
-index ab54f3c..c37fc5f 100755
---- a/configure
-+++ b/configure
-@@ -4494,6 +4494,21 @@ if test "$fortify_source" != "no"; then
- fi
- 
- ##########################################
-+# check if struct fsxattr is available via linux/fs.h
-+
-+have_fsxattr=no
-+cat > $TMPC << EOF
-+#include <linux/fs.h>
-+struct fsxattr foo;
-+int main(void) {
-+  return 0;
-+}
-+EOF
-+if compile_prog "" "" ; then
-+    have_fsxattr=yes
-+fi
-+
-+##########################################
- # End of CC checks
- # After here, no more $cc or $ld runs
- 
-@@ -5160,6 +5175,14 @@ fi
- if test "$have_ifaddrs_h" = "yes" ; then
-     echo "HAVE_IFADDRS_H=y" >> $config_host_mak
- fi
-+
-+# Work around a system header bug with some kernel/XFS header
-+# versions where they both try to define 'struct fsxattr':
-+# xfs headers will not try to redefine structs from linux headers
-+# if this macro is set.
-+if test "$have_fsxattr" = "yes" ; then
-+    echo "HAVE_FSXATTR=y" >> $config_host_mak
-+fi
- if test "$vte" = "yes" ; then
-   echo "CONFIG_VTE=y" >> $config_host_mak
-   echo "VTE_CFLAGS=$vte_cflags" >> $config_host_mak
--- 
-2.8.2
-