gnu: qemu: Update to 2.5.0; add fixes for security flaws.

* gnu/packages/patches/qemu-CVE-2015-6855.patch: Delete file.
* gnu/packages/patches/qemu-virtio-9p-use-accessor-to-get-thread-pool.patch,
  gnu/packages/patches/qemu-CVE-2015-8558.patch,
  gnu/packages/patches/qemu-CVE-2015-8567.patch,
  gnu/packages/patches/qemu-CVE-2015-8613.patch,
  gnu/packages/patches/qemu-CVE-2015-8701.patch,
  gnu/packages/patches/qemu-CVE-2015-8743.patch,
  gnu/packages/patches/qemu-CVE-2016-1568.patch,
  gnu/packages/patches/qemu-CVE-2016-1922.patch: New files.
* gnu-system.am (dist_patch_DATA): Remove 'qemu-CVE-2015-6855.patch'; add the
  new patches.
* gnu/packages/qemu.scm (qemu): Update to 2.5.0.
  [source]: Remove old patches and add new ones.
  [arguments]: Add 'disable-test-qga' phase.
  (%glib-memory-vtable-patch, %glib-duplicate-test-patch): Remove variables.

10 files changed, 432 insertions, 166 deletions

diff --git a/gnu/packages/patches/qemu-CVE-2015-6855.patch b/gnu/packages/patches/qemu-CVE-2015-6855.patch
deleted file mode 100644
index e058dadd69..0000000000
--- a/gnu/packages/patches/qemu-CVE-2015-6855.patch
+++ /dev/null
@@ -1,144 +0,0 @@
-From d9033e1d3aa666c5071580617a57bd853c5d794a Mon Sep 17 00:00:00 2001
-From: John Snow <jsnow@redhat.com>
-Date: Thu, 17 Sep 2015 14:17:05 -0400
-Subject: [PATCH] ide: fix ATAPI command permissions
-
-We're a little too lenient with what we'll let an ATAPI drive handle.
-Clamp down on the IDE command execution table to remove CD_OK permissions
-from commands that are not and have never been ATAPI commands.
-
-For ATAPI command validity, please see:
-- ATA4 Section 6.5 ("PACKET Command feature set")
-- ATA8/ACS Section 4.3 ("The PACKET feature set")
-- ACS3 Section 4.3 ("The PACKET feature set")
-
-ACS3 has a historical command validity table in Table B.4
-("Historical Command Assignments") that can be referenced to find when
-a command was introduced, deprecated, obsoleted, etc.
-
-The only reference for ATAPI command validity is by checking that
-version's PACKET feature set section.
-
-ATAPI was introduced by T13 into ATA4, all commands retired prior to ATA4
-therefore are assumed to have never been ATAPI commands.
-
-Mandatory commands, as listed in ATA8-ACS3, are:
-
-- DEVICE RESET
-- EXECUTE DEVICE DIAGNOSTIC
-- IDENTIFY DEVICE
-- IDENTIFY PACKET DEVICE
-- NOP
-- PACKET
-- READ SECTOR(S)
-- SET FEATURES
-
-Optional commands as listed in ATA8-ACS3, are:
-
-- FLUSH CACHE
-- READ LOG DMA EXT
-- READ LOG EXT
-- WRITE LOG DMA EXT
-- WRITE LOG EXT
-
-All other commands are illegal to send to an ATAPI device and should
-be rejected by the device.
-
-CD_OK removal justifications:
-
-0x06 WIN_DSM              Defined in ACS2. Not valid for ATAPI.
-0x21 WIN_READ_ONCE        Retired in ATA5. Not ATAPI in ATA4.
-0x94 WIN_STANDBYNOW2      Retired in ATA4. Did not coexist with ATAPI.
-0x95 WIN_IDLEIMMEDIATE2   Retired in ATA4. Did not coexist with ATAPI.
-0x96 WIN_STANDBY2         Retired in ATA4. Did not coexist with ATAPI.
-0x97 WIN_SETIDLE2         Retired in ATA4. Did not coexist with ATAPI.
-0x98 WIN_CHECKPOWERMODE2  Retired in ATA4. Did not coexist with ATAPI.
-0x99 WIN_SLEEPNOW2        Retired in ATA4. Did not coexist with ATAPI.
-0xE0 WIN_STANDBYNOW1      Not part of ATAPI in ATA4, ACS or ACS3.
-0xE1 WIN_IDLEIMMDIATE     Not part of ATAPI in ATA4, ACS or ACS3.
-0xE2 WIN_STANDBY          Not part of ATAPI in ATA4, ACS or ACS3.
-0xE3 WIN_SETIDLE1         Not part of ATAPI in ATA4, ACS or ACS3.
-0xE4 WIN_CHECKPOWERMODE1  Not part of ATAPI in ATA4, ACS or ACS3.
-0xE5 WIN_SLEEPNOW1        Not part of ATAPI in ATA4, ACS or ACS3.
-0xF8 WIN_READ_NATIVE_MAX  Obsoleted in ACS3. Not ATAPI in ATA4 or ACS.
-
-This patch fixes a divide by zero fault that can be caused by sending
-the WIN_READ_NATIVE_MAX command to an ATAPI drive, which causes it to
-attempt to use zeroed CHS values to perform sector arithmetic.
-
-Reported-by: Qinghao Tang <luodalongde@gmail.com>
-Signed-off-by: John Snow <jsnow@redhat.com>
-Reviewed-by: Markus Armbruster <armbru@redhat.com>
-Message-id: 1441816082-21031-1-git-send-email-jsnow@redhat.com
-CC: qemu-stable@nongnu.org
----
- hw/ide/core.c | 30 +++++++++++++++---------------
- 1 file changed, 15 insertions(+), 15 deletions(-)
-
-diff --git a/hw/ide/core.c b/hw/ide/core.c
-index 8ba04df..1cc6945 100644
---- a/hw/ide/core.c
-+++ b/hw/ide/core.c
-@@ -1746,11 +1746,11 @@ static const struct {
- } ide_cmd_table[0x100] = {
-     /* NOP not implemented, mandatory for CD */
-     [CFA_REQ_EXT_ERROR_CODE]      = { cmd_cfa_req_ext_error_code, CFA_OK },
--    [WIN_DSM]                     = { cmd_data_set_management, ALL_OK },
-+    [WIN_DSM]                     = { cmd_data_set_management, HD_CFA_OK },
-     [WIN_DEVICE_RESET]            = { cmd_device_reset, CD_OK },
-     [WIN_RECAL]                   = { cmd_nop, HD_CFA_OK | SET_DSC},
-     [WIN_READ]                    = { cmd_read_pio, ALL_OK },
--    [WIN_READ_ONCE]               = { cmd_read_pio, ALL_OK },
-+    [WIN_READ_ONCE]               = { cmd_read_pio, HD_CFA_OK },
-     [WIN_READ_EXT]                = { cmd_read_pio, HD_CFA_OK },
-     [WIN_READDMA_EXT]             = { cmd_read_dma, HD_CFA_OK },
-     [WIN_READ_NATIVE_MAX_EXT]     = { cmd_read_native_max, HD_CFA_OK | SET_DSC },
-@@ -1769,12 +1769,12 @@ static const struct {
-     [CFA_TRANSLATE_SECTOR]        = { cmd_cfa_translate_sector, CFA_OK },
-     [WIN_DIAGNOSE]                = { cmd_exec_dev_diagnostic, ALL_OK },
-     [WIN_SPECIFY]                 = { cmd_nop, HD_CFA_OK | SET_DSC },
--    [WIN_STANDBYNOW2]             = { cmd_nop, ALL_OK },
--    [WIN_IDLEIMMEDIATE2]          = { cmd_nop, ALL_OK },
--    [WIN_STANDBY2]                = { cmd_nop, ALL_OK },
--    [WIN_SETIDLE2]                = { cmd_nop, ALL_OK },
--    [WIN_CHECKPOWERMODE2]         = { cmd_check_power_mode, ALL_OK | SET_DSC },
--    [WIN_SLEEPNOW2]               = { cmd_nop, ALL_OK },
-+    [WIN_STANDBYNOW2]             = { cmd_nop, HD_CFA_OK },
-+    [WIN_IDLEIMMEDIATE2]          = { cmd_nop, HD_CFA_OK },
-+    [WIN_STANDBY2]                = { cmd_nop, HD_CFA_OK },
-+    [WIN_SETIDLE2]                = { cmd_nop, HD_CFA_OK },
-+    [WIN_CHECKPOWERMODE2]         = { cmd_check_power_mode, HD_CFA_OK | SET_DSC },
-+    [WIN_SLEEPNOW2]               = { cmd_nop, HD_CFA_OK },
-     [WIN_PACKETCMD]               = { cmd_packet, CD_OK },
-     [WIN_PIDENTIFY]               = { cmd_identify_packet, CD_OK },
-     [WIN_SMART]                   = { cmd_smart, HD_CFA_OK | SET_DSC },
-@@ -1788,19 +1788,19 @@ static const struct {
-     [WIN_WRITEDMA]                = { cmd_write_dma, HD_CFA_OK },
-     [WIN_WRITEDMA_ONCE]           = { cmd_write_dma, HD_CFA_OK },
-     [CFA_WRITE_MULTI_WO_ERASE]    = { cmd_write_multiple, CFA_OK },
--    [WIN_STANDBYNOW1]             = { cmd_nop, ALL_OK },
--    [WIN_IDLEIMMEDIATE]           = { cmd_nop, ALL_OK },
--    [WIN_STANDBY]                 = { cmd_nop, ALL_OK },
--    [WIN_SETIDLE1]                = { cmd_nop, ALL_OK },
--    [WIN_CHECKPOWERMODE1]         = { cmd_check_power_mode, ALL_OK | SET_DSC },
--    [WIN_SLEEPNOW1]               = { cmd_nop, ALL_OK },
-+    [WIN_STANDBYNOW1]             = { cmd_nop, HD_CFA_OK },
-+    [WIN_IDLEIMMEDIATE]           = { cmd_nop, HD_CFA_OK },
-+    [WIN_STANDBY]                 = { cmd_nop, HD_CFA_OK },
-+    [WIN_SETIDLE1]                = { cmd_nop, HD_CFA_OK },
-+    [WIN_CHECKPOWERMODE1]         = { cmd_check_power_mode, HD_CFA_OK | SET_DSC },
-+    [WIN_SLEEPNOW1]               = { cmd_nop, HD_CFA_OK },
-     [WIN_FLUSH_CACHE]             = { cmd_flush_cache, ALL_OK },
-     [WIN_FLUSH_CACHE_EXT]         = { cmd_flush_cache, HD_CFA_OK },
-     [WIN_IDENTIFY]                = { cmd_identify, ALL_OK },
-     [WIN_SETFEATURES]             = { cmd_set_features, ALL_OK | SET_DSC },
-     [IBM_SENSE_CONDITION]         = { cmd_ibm_sense_condition, CFA_OK | SET_DSC },
-     [CFA_WEAR_LEVEL]              = { cmd_cfa_erase_sectors, HD_CFA_OK | SET_DSC },
--    [WIN_READ_NATIVE_MAX]         = { cmd_read_native_max, ALL_OK | SET_DSC },
-+    [WIN_READ_NATIVE_MAX]         = { cmd_read_native_max, HD_CFA_OK | SET_DSC },
- };
- 
- static bool ide_cmd_permitted(IDEState *s, uint32_t cmd)
--- 
-2.4.3
-
diff --git a/gnu/packages/patches/qemu-CVE-2015-8558.patch b/gnu/packages/patches/qemu-CVE-2015-8558.patch
new file mode 100644
index 0000000000..f755d735cb
--- /dev/null
+++ b/gnu/packages/patches/qemu-CVE-2015-8558.patch
@@ -0,0 +1,48 @@
+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;
+ }
+ 
+ 
+-- 
+2.6.3
+
diff --git a/gnu/packages/patches/qemu-CVE-2015-8567.patch b/gnu/packages/patches/qemu-CVE-2015-8567.patch
new file mode 100644
index 0000000000..0cfd8e9627
--- /dev/null
+++ b/gnu/packages/patches/qemu-CVE-2015-8567.patch
@@ -0,0 +1,93 @@
+From aa4a3dce1c88ed51b616806b8214b7c8428b7470 Mon Sep 17 00:00:00 2001
+From: P J P <ppandit@redhat.com>
+Date: Tue, 15 Dec 2015 12:27:54 +0530
+Subject: [PATCH] net: vmxnet3: avoid memory leakage in activate_device
+
+Vmxnet3 device emulator does not check if the device is active
+before activating it, also it did not free the transmit & receive
+buffers while deactivating the device, thus resulting in memory
+leakage on the host. This patch fixes both these issues to avoid
+host memory leakage.
+
+Reported-by: Qinghao Tang <luodalongde@gmail.com>
+Reviewed-by: Dmitry Fleytman <dmitry@daynix.com>
+Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
+Cc: qemu-stable@nongnu.org
+Signed-off-by: Jason Wang <jasowang@redhat.com>
+---
+ hw/net/vmxnet3.c | 24 ++++++++++++++++--------
+ 1 file changed, 16 insertions(+), 8 deletions(-)
+
+diff --git a/hw/net/vmxnet3.c b/hw/net/vmxnet3.c
+index a5dd79a..9c1adfc 100644
+--- a/hw/net/vmxnet3.c
++++ b/hw/net/vmxnet3.c
+@@ -1194,8 +1194,13 @@ static void vmxnet3_reset_mac(VMXNET3State *s)
+ 
+ static void vmxnet3_deactivate_device(VMXNET3State *s)
+ {
+-    VMW_CBPRN("Deactivating vmxnet3...");
+-    s->device_active = false;
++    if (s->device_active) {
++        VMW_CBPRN("Deactivating vmxnet3...");
++        vmxnet_tx_pkt_reset(s->tx_pkt);
++        vmxnet_tx_pkt_uninit(s->tx_pkt);
++        vmxnet_rx_pkt_uninit(s->rx_pkt);
++        s->device_active = false;
++    }
+ }
+ 
+ static void vmxnet3_reset(VMXNET3State *s)
+@@ -1204,7 +1209,6 @@ static void vmxnet3_reset(VMXNET3State *s)
+ 
+     vmxnet3_deactivate_device(s);
+     vmxnet3_reset_interrupt_states(s);
+-    vmxnet_tx_pkt_reset(s->tx_pkt);
+     s->drv_shmem = 0;
+     s->tx_sop = true;
+     s->skip_current_tx_pkt = false;
+@@ -1431,6 +1435,12 @@ static void vmxnet3_activate_device(VMXNET3State *s)
+         return;
+     }
+ 
++    /* Verify if device is active */
++    if (s->device_active) {
++        VMW_CFPRN("Vmxnet3 device is active");
++        return;
++    }
++
+     vmxnet3_adjust_by_guest_type(s);
+     vmxnet3_update_features(s);
+     vmxnet3_update_pm_state(s);
+@@ -1627,7 +1637,7 @@ static void vmxnet3_handle_command(VMXNET3State *s, uint64_t cmd)
+         break;
+ 
+     case VMXNET3_CMD_QUIESCE_DEV:
+-        VMW_CBPRN("Set: VMXNET3_CMD_QUIESCE_DEV - pause the device");
++        VMW_CBPRN("Set: VMXNET3_CMD_QUIESCE_DEV - deactivate the device");
+         vmxnet3_deactivate_device(s);
+         break;
+ 
+@@ -1741,7 +1751,7 @@ vmxnet3_io_bar1_write(void *opaque,
+          * shared address only after we get the high part
+          */
+         if (val == 0) {
+-            s->device_active = false;
++            vmxnet3_deactivate_device(s);
+         }
+         s->temp_shared_guest_driver_memory = val;
+         s->drv_shmem = 0;
+@@ -2021,9 +2031,7 @@ static bool vmxnet3_peer_has_vnet_hdr(VMXNET3State *s)
+ static void vmxnet3_net_uninit(VMXNET3State *s)
+ {
+     g_free(s->mcast_list);
+-    vmxnet_tx_pkt_reset(s->tx_pkt);
+-    vmxnet_tx_pkt_uninit(s->tx_pkt);
+-    vmxnet_rx_pkt_uninit(s->rx_pkt);
++    vmxnet3_deactivate_device(s);
+     qemu_del_nic(s->nic);
+ }
+ 
+-- 
+2.6.3
+
diff --git a/gnu/packages/patches/qemu-CVE-2015-8613.patch b/gnu/packages/patches/qemu-CVE-2015-8613.patch
new file mode 100644
index 0000000000..3bcc6ab8d6
--- /dev/null
+++ b/gnu/packages/patches/qemu-CVE-2015-8613.patch
@@ -0,0 +1,35 @@
+From 36fef36b91f7ec0435215860f1458b5342ce2811 Mon Sep 17 00:00:00 2001
+From: P J P <ppandit@redhat.com>
+Date: Mon, 21 Dec 2015 15:13:13 +0530
+Subject: [PATCH] scsi: initialise info object with appropriate size
+
+While processing controller 'CTRL_GET_INFO' command, the routine
+'megasas_ctrl_get_info' overflows the '&info' object size. Use its
+appropriate size to null initialise it.
+
+Reported-by: Qinghao Tang <luodalongde@gmail.com>
+Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
+Message-Id: <alpine.LFD.2.20.1512211501420.22471@wniryva>
+Cc: qemu-stable@nongnu.org
+Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
+Signed-off-by: P J P <ppandit@redhat.com>
+---
+ hw/scsi/megasas.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/hw/scsi/megasas.c b/hw/scsi/megasas.c
+index d7dc667..576f56c 100644
+--- a/hw/scsi/megasas.c
++++ b/hw/scsi/megasas.c
+@@ -718,7 +718,7 @@ static int megasas_ctrl_get_info(MegasasState *s, MegasasCmd *cmd)
+     BusChild *kid;
+     int num_pd_disks = 0;
+ 
+-    memset(&info, 0x0, cmd->iov_size);
++    memset(&info, 0x0, dcmd_size);
+     if (cmd->iov_size < dcmd_size) {
+         trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
+                                             dcmd_size);
+-- 
+2.6.3
+
diff --git a/gnu/packages/patches/qemu-CVE-2015-8701.patch b/gnu/packages/patches/qemu-CVE-2015-8701.patch
new file mode 100644
index 0000000000..c7ab7b68b0
--- /dev/null
+++ b/gnu/packages/patches/qemu-CVE-2015-8701.patch
@@ -0,0 +1,47 @@
+From 007cd223de527b5f41278f2d886c1a4beb3e67aa Mon Sep 17 00:00:00 2001
+From: Prasad J Pandit <pjp@fedoraproject.org>
+Date: Mon, 28 Dec 2015 16:24:08 +0530
+Subject: [PATCH] net: rocker: fix an incorrect array bounds check
+
+While processing transmit(tx) descriptors in 'tx_consume' routine
+the switch emulator suffers from an off-by-one error, if a
+descriptor was to have more than allowed(ROCKER_TX_FRAGS_MAX=16)
+fragments. Fix an incorrect bounds check to avoid it.
+
+Reported-by: Qinghao Tang <luodalongde@gmail.com>
+Cc: qemu-stable@nongnu.org
+Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
+Signed-off-by: Jason Wang <jasowang@redhat.com>
+---
+ hw/net/rocker/rocker.c | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/hw/net/rocker/rocker.c b/hw/net/rocker/rocker.c
+index c57f1a6..2e77e50 100644
+--- a/hw/net/rocker/rocker.c
++++ b/hw/net/rocker/rocker.c
+@@ -232,6 +232,9 @@ static int tx_consume(Rocker *r, DescInfo *info)
+         frag_addr = rocker_tlv_get_le64(tlvs[ROCKER_TLV_TX_FRAG_ATTR_ADDR]);
+         frag_len = rocker_tlv_get_le16(tlvs[ROCKER_TLV_TX_FRAG_ATTR_LEN]);
+ 
++        if (iovcnt >= ROCKER_TX_FRAGS_MAX) {
++            goto err_too_many_frags;
++        }
+         iov[iovcnt].iov_len = frag_len;
+         iov[iovcnt].iov_base = g_malloc(frag_len);
+         if (!iov[iovcnt].iov_base) {
+@@ -244,10 +247,7 @@ static int tx_consume(Rocker *r, DescInfo *info)
+             err = -ROCKER_ENXIO;
+             goto err_bad_io;
+         }
+-
+-        if (++iovcnt > ROCKER_TX_FRAGS_MAX) {
+-            goto err_too_many_frags;
+-        }
++        iovcnt++;
+     }
+ 
+     if (iovcnt) {
+-- 
+2.6.3
+
diff --git a/gnu/packages/patches/qemu-CVE-2015-8743.patch b/gnu/packages/patches/qemu-CVE-2015-8743.patch
new file mode 100644
index 0000000000..4a9d0e2f2d
--- /dev/null
+++ b/gnu/packages/patches/qemu-CVE-2015-8743.patch
@@ -0,0 +1,48 @@
+From aa7f9966dfdff500bbbf1956d9e115b1fa8987a6 Mon Sep 17 00:00:00 2001
+From: Prasad J Pandit <pjp@fedoraproject.org>
+Date: Thu, 31 Dec 2015 17:05:27 +0530
+Subject: [PATCH] net: ne2000: fix bounds check in ioport operations
+
+While doing ioport r/w operations, ne2000 device emulation suffers
+from OOB r/w errors. Update respective array bounds check to avoid
+OOB access.
+
+Reported-by: Ling Liu <liuling-it@360.cn>
+Cc: qemu-stable@nongnu.org
+Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
+Signed-off-by: Jason Wang <jasowang@redhat.com>
+---
+ hw/net/ne2000.c | 10 ++++++----
+ 1 file changed, 6 insertions(+), 4 deletions(-)
+
+diff --git a/hw/net/ne2000.c b/hw/net/ne2000.c
+index 010f9ef..a3dffff 100644
+--- a/hw/net/ne2000.c
++++ b/hw/net/ne2000.c
+@@ -467,8 +467,9 @@ static inline void ne2000_mem_writel(NE2000State *s, uint32_t addr,
+                                      uint32_t val)
+ {
+     addr &= ~1; /* XXX: check exact behaviour if not even */
+-    if (addr < 32 ||
+-        (addr >= NE2000_PMEM_START && addr < NE2000_MEM_SIZE)) {
++    if (addr < 32
++        || (addr >= NE2000_PMEM_START
++            && addr + sizeof(uint32_t) <= NE2000_MEM_SIZE)) {
+         stl_le_p(s->mem + addr, val);
+     }
+ }
+@@ -497,8 +498,9 @@ static inline uint32_t ne2000_mem_readw(NE2000State *s, uint32_t addr)
+ static inline uint32_t ne2000_mem_readl(NE2000State *s, uint32_t addr)
+ {
+     addr &= ~1; /* XXX: check exact behaviour if not even */
+-    if (addr < 32 ||
+-        (addr >= NE2000_PMEM_START && addr < NE2000_MEM_SIZE)) {
++    if (addr < 32
++        || (addr >= NE2000_PMEM_START
++            && addr + sizeof(uint32_t) <= NE2000_MEM_SIZE)) {
+         return ldl_le_p(s->mem + addr);
+     } else {
+         return 0xffffffff;
+-- 
+2.6.3
+
diff --git a/gnu/packages/patches/qemu-CVE-2016-1568.patch b/gnu/packages/patches/qemu-CVE-2016-1568.patch
new file mode 100644
index 0000000000..53863704cd
--- /dev/null
+++ b/gnu/packages/patches/qemu-CVE-2016-1568.patch
@@ -0,0 +1,39 @@
+From 4ab0359a8ae182a7ac5c99609667273167703fab Mon Sep 17 00:00:00 2001
+From: Prasad J Pandit <pjp@fedoraproject.org>
+Date: Mon, 11 Jan 2016 14:10:42 -0500
+Subject: [PATCH] ide: ahci: reset ncq object to unused on error
+
+When processing NCQ commands, AHCI device emulation prepares a
+NCQ transfer object; To which an aio control block(aiocb) object
+is assigned in 'execute_ncq_command'. In case, when the NCQ
+command is invalid, the 'aiocb' object is not assigned, and NCQ
+transfer object is left as 'used'. This leads to a use after
+free kind of error in 'bdrv_aio_cancel_async' via 'ahci_reset_port'.
+Reset NCQ transfer object to 'unused' to avoid it.
+
+[Maintainer edit: s/ACHI/AHCI/ in the commit message. --js]
+
+Reported-by: Qinghao Tang <luodalongde@gmail.com>
+Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
+Reviewed-by: John Snow <jsnow@redhat.com>
+Message-id: 1452282511-4116-1-git-send-email-ppandit@redhat.com
+Signed-off-by: John Snow <jsnow@redhat.com>
+---
+ hw/ide/ahci.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/hw/ide/ahci.c b/hw/ide/ahci.c
+index dd1912e..17f1cbd 100644
+--- a/hw/ide/ahci.c
++++ b/hw/ide/ahci.c
+@@ -910,6 +910,7 @@ static void ncq_err(NCQTransferState *ncq_tfs)
+     ide_state->error = ABRT_ERR;
+     ide_state->status = READY_STAT | ERR_STAT;
+     ncq_tfs->drive->port_regs.scr_err |= (1 << ncq_tfs->tag);
++    ncq_tfs->used = 0;
+ }
+ 
+ static void ncq_finish(NCQTransferState *ncq_tfs)
+-- 
+2.6.3
+
diff --git a/gnu/packages/patches/qemu-CVE-2016-1922.patch b/gnu/packages/patches/qemu-CVE-2016-1922.patch
new file mode 100644
index 0000000000..36d9bd2591
--- /dev/null
+++ b/gnu/packages/patches/qemu-CVE-2016-1922.patch
@@ -0,0 +1,65 @@
+From 4c1396cb576c9b14425558b73de1584c7a9735d7 Mon Sep 17 00:00:00 2001
+From: P J P <ppandit@redhat.com>
+Date: Fri, 18 Dec 2015 11:35:07 +0530
+Subject: [PATCH] i386: avoid null pointer dereference
+
+    Hello,
+
+A null pointer dereference issue was reported by Mr Ling Liu, CC'd here. It
+occurs while doing I/O port write operations via hmp interface. In that,
+'current_cpu' remains null as it is not called from cpu_exec loop, which
+results in the said issue.
+
+Below is a proposed (tested)patch to fix this issue; Does it look okay?
+
+===
+From ae88a4947fab9a148cd794f8ad2d812e7f5a1d0f Mon Sep 17 00:00:00 2001
+From: Prasad J Pandit <pjp@fedoraproject.org>
+Date: Fri, 18 Dec 2015 11:16:07 +0530
+Subject: [PATCH] i386: avoid null pointer dereference
+
+When I/O port write operation is called from hmp interface,
+'current_cpu' remains null, as it is not called from cpu_exec()
+loop. This leads to a null pointer dereference in vapic_write
+routine. Add check to avoid it.
+
+Reported-by: Ling Liu <liuling-it@360.cn>
+Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
+Message-Id: <alpine.LFD.2.20.1512181129320.9805@wniryva>
+Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
+Signed-off-by: P J P <ppandit@redhat.com>
+---
+ hw/i386/kvmvapic.c | 15 ++++++++++-----
+ 1 file changed, 10 insertions(+), 5 deletions(-)
+
+diff --git a/hw/i386/kvmvapic.c b/hw/i386/kvmvapic.c
+index c6d34b2..f0922da 100644
+--- a/hw/i386/kvmvapic.c
++++ b/hw/i386/kvmvapic.c
+@@ -634,13 +634,18 @@ static int vapic_prepare(VAPICROMState *s)
+ static void vapic_write(void *opaque, hwaddr addr, uint64_t data,
+                         unsigned int size)
+ {
+-    CPUState *cs = current_cpu;
+-    X86CPU *cpu = X86_CPU(cs);
+-    CPUX86State *env = &cpu->env;
+-    hwaddr rom_paddr;
+     VAPICROMState *s = opaque;
++    X86CPU *cpu;
++    CPUX86State *env;
++    hwaddr rom_paddr;
+ 
+-    cpu_synchronize_state(cs);
++    if (!current_cpu) {
++        return;
++    }
++
++    cpu_synchronize_state(current_cpu);
++    cpu = X86_CPU(current_cpu);
++    env = &cpu->env;
+ 
+     /*
+      * The VAPIC supports two PIO-based hypercalls, both via port 0x7E.
+-- 
+2.6.3
+
diff --git a/gnu/packages/patches/qemu-virtio-9p-use-accessor-to-get-thread-pool.patch b/gnu/packages/patches/qemu-virtio-9p-use-accessor-to-get-thread-pool.patch
new file mode 100644
index 0000000000..497e49f1d9
--- /dev/null
+++ b/gnu/packages/patches/qemu-virtio-9p-use-accessor-to-get-thread-pool.patch
@@ -0,0 +1,34 @@
+From 4b3a4f2d458ca5a7c6c16ac36a8d9ac22cc253d6 Mon Sep 17 00:00:00 2001
+From: Greg Kurz <gkurz@linux.vnet.ibm.com>
+Date: Wed, 23 Dec 2015 10:56:58 +0100
+Subject: [PATCH] virtio-9p: use accessor to get thread_pool
+
+The aio_context_new() function does not allocate a thread pool. This is
+deferred to the first call to the aio_get_thread_pool() accessor. It is
+hence forbidden to access the thread_pool field directly, as it may be
+NULL. The accessor *must* be used always.
+
+Fixes: ebac1202c95a4f1b76b6ef3f0f63926fa76e753e
+Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
+Tested-by: Michael Tokarev <mjt@tls.msk.ru>
+Cc: qemu-stable@nongnu.org
+Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
+---
+ hw/9pfs/virtio-9p-coth.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/hw/9pfs/virtio-9p-coth.c b/hw/9pfs/virtio-9p-coth.c
+index fb6e8f8..ab9425c 100644
+--- a/hw/9pfs/virtio-9p-coth.c
++++ b/hw/9pfs/virtio-9p-coth.c
+@@ -36,6 +36,6 @@ static int coroutine_enter_func(void *arg)
+ void co_run_in_worker_bh(void *opaque)
+ {
+     Coroutine *co = opaque;
+-    thread_pool_submit_aio(qemu_get_aio_context()->thread_pool,
++    thread_pool_submit_aio(aio_get_thread_pool(qemu_get_aio_context()),
+                            coroutine_enter_func, co, coroutine_enter_cb, co);
+ }
+-- 
+2.6.3
+
diff --git a/gnu/packages/qemu.scm b/gnu/packages/qemu.scm
index a6abb48913..7624cdcae9 100644
--- a/gnu/packages/qemu.scm
+++ b/gnu/packages/qemu.scm
@@ -1,6 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2013, 2014, 2015 Ludovic Courtès <ludo@gnu.org>
-;;; Copyright © 2015 Mark H Weaver <mhw@netris.org>
+;;; Copyright © 2015, 2016 Mark H Weaver <mhw@netris.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -51,35 +51,27 @@
     (sha256 sha256)
     (file-name file-name)))
 
-(define %glib-memory-vtable-patch
-  (qemu-patch "deb847bf"
-              "qemu-glib-memory-vtable.patch"
-              (base32
-               "0afb7rvxy14104jxmhr7m02w5baiz0c7vhq3h642h09jgxrcmzzi")))
-
-(define %glib-duplicate-test-patch
-  (qemu-patch "98cf48f6"
-              "qemu-glib-duplicate-test.patch"
-              (base32
-               "1aicbplzdj5s5y13jmqyvfajay05x9dnkzd197waz8v6kha7d9d5")))
-
 (define-public qemu
   (package
     (name "qemu")
-    (version "2.4.0.1")
+    (version "2.5.0")
     (source (origin
              (method url-fetch)
              (uri (string-append "http://wiki.qemu-project.org/download/qemu-"
                                  version ".tar.bz2"))
              (sha256
               (base32
-               "1nqv5p94zpnhcaqkifnn83ap7dd0qrb0qiicswbyhhby0f48pzpc"))
-             (patches (list (search-patch "qemu-CVE-2015-6855.patch")
-
-                            ;; These two patches allow QEMU's tests to run
-                            ;; correctly with 'gtester' from the latest GLib.
-                            %glib-memory-vtable-patch
-                            %glib-duplicate-test-patch))))
+               "1m3j6xl7msrniidkvr5pw9d44yba5m7hm42xz8xy77v105s8hhrl"))
+             (patches
+              (map search-patch
+                   '("qemu-virtio-9p-use-accessor-to-get-thread-pool.patch"
+                     "qemu-CVE-2015-8558.patch"
+                     "qemu-CVE-2015-8567.patch"
+                     "qemu-CVE-2016-1922.patch"
+                     "qemu-CVE-2015-8613.patch"
+                     "qemu-CVE-2015-8701.patch"
+                     "qemu-CVE-2015-8743.patch"
+                     "qemu-CVE-2016-1568.patch")))))
     (build-system gnu-build-system)
     (arguments
      '(#:phases (alist-replace
@@ -120,7 +112,16 @@
                                               (string-append infodir "/" info)))
                                            (find-files "." "\\.info$"))
                                  #t)))))
-                  %standard-phases))))
+                  (alist-cons-before
+                   'check 'disable-test-qga
+                   (lambda _
+                     (substitute* "tests/Makefile"
+                       ;; Comment out the test-qga test, which needs /sys and
+                       ;; fails within the build environment.
+                       (("check-unit-.* tests/test-qga" all)
+                        (string-append "# " all)))
+                     #t)
+                   %standard-phases)))))
 
     (inputs                                       ; TODO: Add optional inputs.
      `(("sdl" ,sdl)