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Robert Förster 7 years ago
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ee5b5151bf
  1. 50
      app-emulation/qemu/files/qemu-2.5.0-CVE-2015-8558.patch
  2. 95
      app-emulation/qemu/files/qemu-2.5.0-CVE-2015-8567.patch
  3. 49
      app-emulation/qemu/files/qemu-2.5.0-CVE-2015-8701.patch
  4. 50
      app-emulation/qemu/files/qemu-2.5.0-CVE-2015-8743.patch
  5. 41
      app-emulation/qemu/files/qemu-2.5.0-CVE-2016-1568.patch
  6. 6
      app-emulation/qemu/qemu-2.5.0-r1.ebuild

50
app-emulation/qemu/files/qemu-2.5.0-CVE-2015-8558.patch

@ -0,0 +1,50 @@
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

95
app-emulation/qemu/files/qemu-2.5.0-CVE-2015-8567.patch

@ -0,0 +1,95 @@
https://bugs.gentoo.org/567868
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);
}
--
2.6.2

49
app-emulation/qemu/files/qemu-2.5.0-CVE-2015-8701.patch

@ -0,0 +1,49 @@
https://bugs.gentoo.org/570110
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) {
--
2.6.2

50
app-emulation/qemu/files/qemu-2.5.0-CVE-2015-8743.patch

@ -0,0 +1,50 @@
https://bugs.gentoo.org/570988
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;
--
2.6.2

41
app-emulation/qemu/files/qemu-2.5.0-CVE-2016-1568.patch

@ -0,0 +1,41 @@
https://bugs.gentoo.org/571566
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)
--
2.6.2

6
app-emulation/qemu/qemu-2.5.0.ebuild → app-emulation/qemu/qemu-2.5.0-r1.ebuild

@ -315,6 +315,12 @@ src_prepare() {
EPATCH_FORCE=yes EPATCH_SUFFIX="patch" EPATCH_SOURCE="${S}/patches" \
epatch
epatch "${FILESDIR}"/${P}-CVE-2015-8567.patch #567868
epatch "${FILESDIR}"/${P}-CVE-2015-8558.patch #568246
epatch "${FILESDIR}"/${P}-CVE-2015-8701.patch #570110
epatch "${FILESDIR}"/${P}-CVE-2015-8743.patch #570988
epatch "${FILESDIR}"/${P}-CVE-2016-1568.patch #571566
# Fix ld and objcopy being called directly
tc-export AR LD OBJCOPY
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