gnu: qemu: Patch CVE-2017-{2615, 5578, 5579, 5856}.

* gnu/packages/qemu.scm (qemu)[source]: Add patches.
* gnu/packages/patches/qemu-CVE-2017-2615,
gnu/packages/patches/qemu-CVE-2017-5578,
gnu/packages/patches/qemu-CVE-2017-5579,
gnu/packages/patches/qemu-CVE-2017-5856: New files.
* gnu/local.mk (dist_patch_DATA): Register them.

4 files changed, 203 insertions, 0 deletions

diff --git a/gnu/packages/patches/qemu-CVE-2017-2615.patch b/gnu/packages/patches/qemu-CVE-2017-2615.patch
new file mode 100644
index 0000000000..ede1f8c89d
--- /dev/null
+++ b/gnu/packages/patches/qemu-CVE-2017-2615.patch
@@ -0,0 +1,52 @@
+http://git.qemu.org/?p=qemu.git;a=patch;h=62d4c6bd5263bb8413a06c80144fc678df6dfb64
+this patch is from qemu-git.
+
+
+From 62d4c6bd5263bb8413a06c80144fc678df6dfb64 Mon Sep 17 00:00:00 2001
+From: Li Qiang <liqiang6-s@360.cn>
+Date: Wed, 1 Feb 2017 09:35:01 +0100
+Subject: [PATCH] cirrus: fix oob access issue (CVE-2017-2615)
+
+When doing bitblt copy in backward mode, we should minus the
+blt width first just like the adding in the forward mode. This
+can avoid the oob access of the front of vga's vram.
+
+Signed-off-by: Li Qiang <liqiang6-s@360.cn>
+
+{ kraxel: with backward blits (negative pitch) addr is the topmost
+          address, so check it as-is against vram size ]
+
+Cc: qemu-stable@nongnu.org
+Cc: P J P <ppandit@redhat.com>
+Cc: Laszlo Ersek <lersek@redhat.com>
+Cc: Paolo Bonzini <pbonzini@redhat.com>
+Cc: Wolfgang Bumiller <w.bumiller@proxmox.com>
+Fixes: d3532a0db02296e687711b8cdc7791924efccea0 (CVE-2014-8106)
+Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
+Message-id: 1485938101-26602-1-git-send-email-kraxel@redhat.com
+Reviewed-by: Laszlo Ersek <lersek@redhat.com>
+---
+ hw/display/cirrus_vga.c | 7 +++----
+ 1 file changed, 3 insertions(+), 4 deletions(-)
+
+diff --git a/hw/display/cirrus_vga.c b/hw/display/cirrus_vga.c
+index 7db6409dc5..16f27e8ac5 100644
+--- a/hw/display/cirrus_vga.c
++++ b/hw/display/cirrus_vga.c
+@@ -274,10 +274,9 @@ static bool blit_region_is_unsafe(struct CirrusVGAState *s,
+ {
+     if (pitch < 0) {
+         int64_t min = addr
+-            + ((int64_t)s->cirrus_blt_height-1) * pitch;
+-        int32_t max = addr
+-            + s->cirrus_blt_width;
+-        if (min < 0 || max > s->vga.vram_size) {
++            + ((int64_t)s->cirrus_blt_height - 1) * pitch
++            - s->cirrus_blt_width;
++        if (min < -1 || addr >= s->vga.vram_size) {
+             return true;
+         }
+     } else {
+-- 
+2.11.0
+
diff --git a/gnu/packages/patches/qemu-CVE-2017-5578.patch b/gnu/packages/patches/qemu-CVE-2017-5578.patch
new file mode 100644
index 0000000000..05655bcd98
--- /dev/null
+++ b/gnu/packages/patches/qemu-CVE-2017-5578.patch
@@ -0,0 +1,39 @@
+http://git.qemu.org/?p=qemu.git;a=patch;h=204f01b30975923c64006f8067f0937b91eea68b
+this patch is from qemu-git.
+
+
+From 204f01b30975923c64006f8067f0937b91eea68b Mon Sep 17 00:00:00 2001
+From: Li Qiang <liq3ea@gmail.com>
+Date: Thu, 29 Dec 2016 04:28:41 -0500
+Subject: [PATCH] virtio-gpu: fix memory leak in resource attach backing
+
+In the resource attach backing function, everytime it will
+allocate 'res->iov' thus can leading a memory leak. This
+patch avoid this.
+
+Signed-off-by: Li Qiang <liq3ea@gmail.com>
+Message-id: 1483003721-65360-1-git-send-email-liq3ea@gmail.com
+Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
+---
+ hw/display/virtio-gpu.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c
+index 6a26258cac..ca88cf478d 100644
+--- a/hw/display/virtio-gpu.c
++++ b/hw/display/virtio-gpu.c
+@@ -714,6 +714,11 @@ virtio_gpu_resource_attach_backing(VirtIOGPU *g,
+         return;
+     }
+ 
++    if (res->iov) {
++        cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC;
++        return;
++    }
++
+     ret = virtio_gpu_create_mapping_iov(&ab, cmd, &res->addrs, &res->iov);
+     if (ret != 0) {
+         cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC;
+-- 
+2.11.0
+
diff --git a/gnu/packages/patches/qemu-CVE-2017-5579.patch b/gnu/packages/patches/qemu-CVE-2017-5579.patch
new file mode 100644
index 0000000000..7630012d54
--- /dev/null
+++ b/gnu/packages/patches/qemu-CVE-2017-5579.patch
@@ -0,0 +1,44 @@
+http://git.qemu.org/?p=qemu.git;a=patch;h=8409dc884a201bf74b30a9d232b6bbdd00cb7e2b
+this patch is from qemu-git.
+
+
+From 8409dc884a201bf74b30a9d232b6bbdd00cb7e2b Mon Sep 17 00:00:00 2001
+From: Li Qiang <liqiang6-s@360.cn>
+Date: Wed, 4 Jan 2017 00:43:16 -0800
+Subject: [PATCH] serial: fix memory leak in serial exit
+
+The serial_exit_core function doesn't free some resources.
+This can lead memory leak when hotplug and unplug. This
+patch avoid this.
+
+Signed-off-by: Li Qiang <liqiang6-s@360.cn>
+Message-Id: <586cb5ab.f31d9d0a.38ac3.acf2@mx.google.com>
+Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
+---
+ hw/char/serial.c | 10 ++++++++++
+ 1 file changed, 10 insertions(+)
+
+diff --git a/hw/char/serial.c b/hw/char/serial.c
+index ffbacd8227..67b18eda12 100644
+--- a/hw/char/serial.c
++++ b/hw/char/serial.c
+@@ -906,6 +906,16 @@ void serial_realize_core(SerialState *s, Error **errp)
+ void serial_exit_core(SerialState *s)
+ {
+     qemu_chr_fe_deinit(&s->chr);
++
++    timer_del(s->modem_status_poll);
++    timer_free(s->modem_status_poll);
++
++    timer_del(s->fifo_timeout_timer);
++    timer_free(s->fifo_timeout_timer);
++
++    fifo8_destroy(&s->recv_fifo);
++    fifo8_destroy(&s->xmit_fifo);
++
+     qemu_unregister_reset(serial_reset, s);
+ }
+ 
+-- 
+2.11.0
+
diff --git a/gnu/packages/patches/qemu-CVE-2017-5856.patch b/gnu/packages/patches/qemu-CVE-2017-5856.patch
new file mode 100644
index 0000000000..bee0824c0a
--- /dev/null
+++ b/gnu/packages/patches/qemu-CVE-2017-5856.patch
@@ -0,0 +1,68 @@
+http://git.qemu.org/?p=qemu.git;a=patch;h=765a707000e838c30b18d712fe6cb3dd8e0435f3
+this patch is from qemu-git.
+
+
+From 765a707000e838c30b18d712fe6cb3dd8e0435f3 Mon Sep 17 00:00:00 2001
+From: Paolo Bonzini <pbonzini@redhat.com>
+Date: Mon, 2 Jan 2017 11:03:33 +0100
+Subject: [PATCH] megasas: fix guest-triggered memory leak
+
+If the guest sets the sglist size to a value >=2GB, megasas_handle_dcmd
+will return MFI_STAT_MEMORY_NOT_AVAILABLE without freeing the memory.
+Avoid this by returning only the status from map_dcmd, and loading
+cmd->iov_size in the caller.
+
+Reported-by: Li Qiang <liqiang6-s@360.cn>
+Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
+---
+ hw/scsi/megasas.c |   11 ++++++-----
+ 1 files changed, 6 insertions(+), 5 deletions(-)
+
+diff --git a/hw/scsi/megasas.c b/hw/scsi/megasas.c
+index 67fc1e7..6233865 100644
+--- a/hw/scsi/megasas.c
++++ b/hw/scsi/megasas.c
+@@ -683,14 +683,14 @@ static int megasas_map_dcmd(MegasasState *s, MegasasCmd *cmd)
+         trace_megasas_dcmd_invalid_sge(cmd->index,
+                                        cmd->frame->header.sge_count);
+         cmd->iov_size = 0;
+-        return -1;
++        return -EINVAL;
+     }
+     iov_pa = megasas_sgl_get_addr(cmd, &cmd->frame->dcmd.sgl);
+     iov_size = megasas_sgl_get_len(cmd, &cmd->frame->dcmd.sgl);
+     pci_dma_sglist_init(&cmd->qsg, PCI_DEVICE(s), 1);
+     qemu_sglist_add(&cmd->qsg, iov_pa, iov_size);
+     cmd->iov_size = iov_size;
+-    return cmd->iov_size;
++    return 0;
+ }
+ 
+ static void megasas_finish_dcmd(MegasasCmd *cmd, uint32_t iov_size)
+@@ -1559,19 +1559,20 @@ static const struct dcmd_cmd_tbl_t {
+ 
+ static int megasas_handle_dcmd(MegasasState *s, MegasasCmd *cmd)
+ {
+-    int opcode, len;
++    int opcode;
+     int retval = 0;
++    size_t len;
+     const struct dcmd_cmd_tbl_t *cmdptr = dcmd_cmd_tbl;
+ 
+     opcode = le32_to_cpu(cmd->frame->dcmd.opcode);
+     trace_megasas_handle_dcmd(cmd->index, opcode);
+-    len = megasas_map_dcmd(s, cmd);
+-    if (len < 0) {
++    if (megasas_map_dcmd(s, cmd) < 0) {
+         return MFI_STAT_MEMORY_NOT_AVAILABLE;
+     }
+     while (cmdptr->opcode != -1 && cmdptr->opcode != opcode) {
+         cmdptr++;
+     }
++    len = cmd->iov_size;
+     if (cmdptr->opcode == -1) {
+         trace_megasas_dcmd_unhandled(cmd->index, opcode, len);
+         retval = megasas_dcmd_dummy(s, cmd);
+-- 
+1.7.0.4
+