This bug was fixed in the package linux - 4.13.0-46.51
---------------
linux (4.13.0-46.51) artful; urgency=medium
* linux: 4.13.0-46.51 -proposed tracker (LP: #1776333)
* register on binfmt_misc may overflow and crash the system (LP: #1775856)
- fs/binfmt_misc.c: do not allow offset overflow
* CVE-2018-11508
- compat: fix 4-byte infoleak via uninitialized struct field
* rfi-flush: Switch to new linear fallback flush (LP: #1744173)
- SAUCE: rfi-flush: Factor out init_fallback_flush()
- SAUCE: rfi-flush: Move rfi_flush_fallback_area to end of paca
- powerpc/64s: Improve RFI L1-D cache flush fallback
- powerpc/rfi-flush: Make it possible to call setup_rfi_flush() again
- powerpc/rfi-flush: Differentiate enabled and patched flush types
- powerpc/rfi-flush: Call setup_rfi_flush() after LPM migration
* Fix enabling bridge MMIO windows (LP: #1771344)
- powerpc/eeh: Fix enabling bridge MMIO windows
* CVE-2018-1130
- dccp: check sk for closed state in dccp_sendmsg()
* CVE-2018-7757
- scsi: libsas: fix memory leak in sas_smp_get_phy_events()
* cpum_sf: ensure sample freq is non-zero (LP: #1772593)
- s390/cpum_sf: ensure sample frequency of perf event attributes is non-zero
* wlp3s0: failed to remove key (1, ff:ff:ff:ff:ff:ff) from hardware (-22)
(LP: #1720930)
- iwlwifi: mvm: fix "failed to remove key" message
* CVE-2018-6927
- futex: Prevent overflow by strengthen input validation
* After update to 4.13-43 Intel Graphics are Laggy (LP: #1773520)
- SAUCE: Revert "drm/i915/edp: Allow alternate fixed mode for eDP if
available."
* ELANPAD ELAN0612 does not work, patch available (LP: #1773509)
- SAUCE: Input: elan_i2c - add ELAN0612 to the ACPI table
* kernel backtrace when receiving large UDP packages (LP: #1772031)
- iov_iter: fix page_copy_sane for compound pages
* FS-Cache: Assertion failed: FS-Cache: 6 == 5 is false (LP: #1774336)
- SAUCE: CacheFiles: fix a read_waiter/read_copier race
* CVE-2018-5803
- sctp: verify size of a new chunk in _sctp_make_chunk()
* enable mic-mute hotkey and led on Lenovo M820z and M920z (LP: #1774306)
- ALSA: hda/realtek - Enable mic-mute hotkey for several Lenovo AIOs
* CVE-2018-7755
- SAUCE: floppy: Do not copy a kernel pointer to user memory in FDGETPRM
ioctl
* CVE-2018-5750
- ACPI: sbshc: remove raw pointer from printk() message
-- Khalid Elmously <khalid.elmou...@canonical.com> Mon, 11 Jun 2018
23:25:30 +0000
** Changed in: linux (Ubuntu Artful)
Status: Fix Committed => Fix Released
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-1130
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-11508
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-5750
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-5803
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-6927
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-7755
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-7757
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1771344
Title:
Fix enabling bridge MMIO windows
Status in The Ubuntu-power-systems project:
Fix Committed
Status in linux package in Ubuntu:
Fix Committed
Status in linux source package in Artful:
Fix Released
Status in linux source package in Bionic:
Fix Released
Status in linux source package in Cosmic:
Fix Committed
Bug description:
== SRU Justification ==
IBM is requesting this patch in Bionic and Artful to fix a regression. The
regression was introduced in v3.11-rc1. The patch fixes enabling bridge
MMIO windows. Commit 13a83eac373c was also cc'd to upstream stable, and
has already landed in Xenial via upstream stable updates.
== Fix ==
13a83eac373c ("powerpc/eeh: Fix enabling bridge MMIO windows")
== Regression Potential ==
Low. Limited to powerpc and fixes a current regression.
== Test Case ==
A test kernel was built with this patch and tested by the original bug
reporter.
The bug reporter states the test kernel resolved the bug.
== Comment: #0 - Breno Leitao <bren...@br.ibm.com>
On boot we save the configuration space of PCIe bridges. We do this so
when we get an EEH event and everything gets reset that we can restore
them.
Unfortunately we save this state before we've enabled the MMIO space
on the bridges. Hence if we have to reset the bridge when we come back
MMIO is not enabled and we end up taking an PE freeze when the driver
starts accessing again.
This patch forces the memory/MMIO and bus mastering on when restoring
bridges on EEH. Ideally we'd do this correctly by saving the
configuration space writes later, but that will have to come later in
a larger EEH rewrite. For now we have this simple fix.
The original bug can be triggered on a boston machine by doing:
echo 0x8000000000000000 >
/sys/kernel/debug/powerpc/PCI0001/err_injct_outbound
On boston, this PHB has a PCIe switch on it. Without this patch,
you'll see two EEH events, 1 expected and 1 the failure we are fixing
here. The second EEH event causes the anything under the PHB to
disappear (i.e. the i40e eth).
With this patch, only 1 EEH event occurs and devices properly recover.
This is commit id 13a83eac373c49c0a081cbcd137e79210fe78acd and should
be part of Ubuntu 18.04 kernel.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-power-systems/+bug/1771344/+subscriptions
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
