This bug was fixed in the package linux - 4.18.0-16.17
---------------
linux (4.18.0-16.17) cosmic; urgency=medium
* linux: 4.18.0-16.17 -proposed tracker (LP: #1814749)
* Packaging resync (LP: #1786013)
- [Packaging] update helper scripts
* CVE-2018-16880
- vhost: fix OOB in get_rx_bufs()
* RTL8822BE WiFi Disabled in Kernel 4.18.0-12 (LP: #1806472)
- SAUCE: staging: rtlwifi: allow RTLWIFI_DEBUG_ST to be disabled
- [Config] CONFIG_RTLWIFI_DEBUG_ST=n
- SAUCE: Add r8822be to signature inclusion list
* kernel oops in bcache module (LP: #1793901)
- SAUCE: bcache: never writeback a discard operation
* CVE-2018-18397
- userfaultfd: use ENOENT instead of EFAULT if the atomic copy user fails
- userfaultfd: shmem: allocate anonymous memory for MAP_PRIVATE shmem
- userfaultfd: shmem/hugetlbfs: only allow to register VM_MAYWRITE vmas
- userfaultfd: shmem: add i_size checks
- userfaultfd: shmem: UFFDIO_COPY: set the page dirty if VM_WRITE is not set
* Ignore "incomplete report" from Elan touchpanels (LP: #1813733)
- HID: i2c-hid: Ignore input report if there's no data present on Elan
touchpanels
* Vsock connect fails with ENODEV for large CID (LP: #1813934)
- vhost/vsock: fix vhost vsock cid hashing inconsistent
* Fix non-working pinctrl-intel (LP: #1811777)
- pinctrl: intel: Do pin translation in other GPIO operations as well
* ip6_gre: fix tunnel list corruption for x-netns (LP: #1812875)
- ip6_gre: fix tunnel list corruption for x-netns
* Backported commit breaks audio (fixed upstream) (LP: #1811566)
- ASoC: intel: cht_bsw_max98090_ti: Add quirk for boards using pmc_plt_clk_0
- ASoC: intel: cht_bsw_max98090_ti: Add pmc_plt_clk_0 quirk for Chromebook
Clapper
- ASoC: intel: cht_bsw_max98090_ti: Add pmc_plt_clk_0 quirk for Chromebook
Gnawty
* kvm_stat : missing python dependency (LP: #1798776)
- tools/kvm_stat: switch to python3
* [SRU] Fix Xorg crash with nomodeset when BIOS enable 64-bit fb addr
(LP: #1812797)
- vgaarb: Add support for 64-bit frame buffer address
- vgaarb: Keep adding VGA device in queue
* Fix non-working QCA Rome Bluetooth after S3 (LP: #1812812)
- USB: Add new USB LPM helpers
- USB: Consolidate LPM checks to avoid enabling LPM twice
* [SRU] IO's are issued with incorrect Scatter Gather Buffer (LP: #1795453)
- scsi: megaraid_sas: Use 63-bit DMA addressing
* x86/mm: Found insecure W+X mapping at address (ptrval)/0xc00a0000
(LP: #1813532)
- x86/mm: Do not warn about PCI BIOS W+X mappings
* CVE-2019-6133
- fork: record start_time late
* Fix not working Goodix touchpad (LP: #1811929)
- HID: i2c-hid: Disable runtime PM on Goodix touchpad
* bluetooth controller not detected with 4.15 kernel (LP: #1810797)
- SAUCE: btqcomsmd: introduce BT_QCOMSMD_HACK
- [Config] arm64: snapdragon: BT_QCOMSMD_HACK=y
* X1 Extreme: only one of the two SSDs is loaded (LP: #1811755)
- nvme-core: rework a NQN copying operation
- nvme: pad fake subsys NQN vid and ssvid with zeros
- nvme: introduce NVME_QUIRK_IGNORE_DEV_SUBNQN
* Crash on "ip link add foo type ipip" (LP: #1811803)
- SAUCE: fan: Fix NULL pointer dereference
-- Stefan Bader <stefan.ba...@canonical.com> Thu, 07 Feb 2019 23:23:02
+0100
** Changed in: linux (Ubuntu Cosmic)
Status: Fix Committed => Fix Released
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-16880
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-18397
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2019-6133
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https://bugs.launchpad.net/bugs/1811566
Title:
Backported commit breaks audio (fixed upstream)
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Cosmic:
Fix Released
Status in linux source package in Disco:
Fix Released
Bug description:
== Justification ==
Commit 648e921888ad96ea3dc922739e96716ad3225d7f (clk: x86: Stop marking
clocks as CLK_IS_CRITICAL) backported to Cosmic kernel fixed the bug that keeps
unused clocks on, but it is breaking the audio support on some Chromebooks
(Swanky / Clapper/ Gnawty) since we were not using
the right clock in the cht_bsw_max98090_ti machine driver.
== Fix ==
a182ecd (ASoC: intel: cht_bsw_max98090_ti: Add quirk for boards
using pmc_plt_clk_0)
984bfb3 (ASoC: intel: cht_bsw_max98090_ti: Add pmc_plt_clk_0 quirk)
94ea56c (ASoC: intel: cht_bsw_max98090_ti: Add pmc_plt_clk_0 quirk)
These 3 patches can be cherry-picked to Cosmic.
== Test ==
Test kernel with these 3 patches could be found in:
http://people.canonical.com/~phlin/kernel/lp-1811566-chromebook-Gnawty/
Bug reporter stated that this kernel can fix the audio issue as
expected.
== Regression potential ==
Low,
changes are limited in the cht_bsw_max98090_ti driver with a new DMI based
quirk table that contains these 3 Chromebook models and some logic to determine
the right clock to use.
It seems that commit 648e921888ad96ea3dc922739e96716ad3225d7f was
backported to ubuntu's 4.18 kernel. That commit breaks audio for some
devices (chromebook gnawty) (from 4.19 on). Now 4.19, 4.20, 5.0 are
fixed, with patch on commit:
47148001ae12292984ba1b38d9babefb9a46cd3e
ASoC: intel: cht_bsw_max98090_ti: Add pmc_plt_clk_0 quirk for Chromebook
Gnawty
Bug reported:
https://bugzilla.kernel.org/show_bug.cgi?id=201787
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