This bug was fixed in the package linux - 3.13.0-161.211
---------------
linux (3.13.0-161.211) trusty; urgency=medium
* linux: 3.13.0-161.211 -proposed tracker (LP: #1795595)
* CVE-2017-0794
- scsi: sg: protect accesses to 'reserved' page array
- scsi: sg: reset 'res_in_use' after unlinking reserved array
- scsi: sg: recheck MMAP_IO request length with lock held
* CVE-2017-15299
- KEYS: don't let add_key() update an uninstantiated key
* CVE-2015-8539
- KEYS: Fix handling of stored error in a negatively instantiated user key
* CVE-2018-7566
- ALSA: seq: Fix racy pool initializations
- ALSA: seq: More protection for concurrent write and ioctl races
* CVE-2018-1000004. // CVE-2018-7566
- ALSA: seq: Don't allow resizing pool in use
* CVE-2018-1000004
- ALSA: seq: Make ioctls race-free
* CVE-2017-18216
- ocfs2: subsystem.su_mutex is required while accessing the item->ci_parent
* CVE-2016-7913
- tuner-xc2028: Don't try to sleep twice
- xc2028: avoid use after free
- xc2028: unlock on error in xc2028_set_config()
- xc2028: Fix use-after-free bug properly
* The VM hang happens because of pending interrupts not reinjected when
migrating the VM several times (LP: #1791286)
- KVM: ioapic: merge ioapic_deliver into ioapic_service
- KVM: ioapic: clear IRR for edge-triggered interrupts at delivery
- KVM: ioapic: extract body of kvm_ioapic_set_irq
- KVM: ioapic: reinject pending interrupts on KVM_SET_IRQCHIP
* CVE-2018-5390
- SAUCE: tcp: Correct the backport of the CVE-2018-5390 fix
* CVE-2018-9518
- NFC: llcp: Limit size of SDP URI
* Improvements to the kernel source package preparation (LP: #1793461)
- [Packaging] startnewrelease: add support for backport kernels
-- Stefan Bader <stefan.ba...@canonical.com> Wed, 03 Oct 2018 16:41:42
+0200
** Changed in: linux (Ubuntu Trusty)
Status: Fix Committed => Fix Released
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2015-8539
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2016-7913
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-0794
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-15299
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-18216
** CVE added: https://cve.mitre.org/cgi-
bin/cvename.cgi?name=2018-1000004
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-5390
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-7566
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-9518
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https://bugs.launchpad.net/bugs/1791286
Title:
The VM hang happens because of pending interrupts not reinjected when
migrating the VM several times
Status in linux package in Ubuntu:
Incomplete
Status in linux source package in Trusty:
Fix Released
Bug description:
[Impact]
After the VM(Guest OS is Windows Server 2012R2) has been live-migrated
several times, the screen is blacked out or freeze when the VM is
connected via VNC.
The Windows Guest OS Server has been investigated that all of kernel
threads of Windows Server OS are waiting(idle state) for interrupt
request(IRQ) from hypervisor.
The following environment is tested:
* Host OS: Ubuntu 14.04(kernel 3.13.0-40.69)
* qemu-kvm_2.0.0+dfsg-2ubuntu1.22
* libvert-bin_1.2.2-0ubuntu13.1.5
* nova-compute_1:2014.2.3-0ubuntu1.2~cloud0
* GuestOS: Windows Server 2012R2
* virtio-win-0.1.126
[Fix]
The patch set is needed:
673f7b4257a1 KVM: ioapic: reinject pending interrupts on KVM_SET_IRQCHIP
44847dea7975 KVM: ioapic: extract body of kvm_ioapic_set_irq
0bc830b05c66 KVM: ioapic: clear IRR for edge-triggered interrupts at delivery
0b10a1c87a2b KVM: ioapic: merge ioapic_deliver into ioapic_service
[Test]
Prepare two machines with the same environment mentioned above and run
the following script.
#!/bin/bash
INSTANCE="test"
FROM="elite"
virsh -c qemu+ssh://ubuntu@${FROM}/system list| grep -q ${INSTANCE}
if [[ $? != 0 ]]; then
FROM="dixie";
TO="elite";
else
TO="dixie"
fi
echo "= Migrating ${INSTANCE} from ${FROM} to ${TO} ="
ssh ubuntu@${FROM} -- virsh migrate --live --domain ${INSTANCE}
--desturi qemu+ssh://ubuntu@${TO}/system
The VNC script I use to keep track of the VNC console is:
#!/bin/bash
INSTANCE="test"
while true; do
HOST="elite"
virsh -c qemu+ssh://ubuntu@${HOST}/system list| grep -q ${INSTANCE}
if [[ $? != 0 ]]; then HOST="dixie"; fi
virt-viewer -c qemu+ssh://ubuntu@${HOST}/system test
sleep 3
done
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