This bug was fixed in the package linux-oem-5.17 - 5.17.0-1025.26
---------------
linux-oem-5.17 (5.17.0-1025.26) jammy; urgency=medium
* jammy/linux-oem-5.17: 5.17.0-1025.26 -proposed tracker (LP:
#1997739)
* Packaging resync (LP: #1786013)
- debian/dkms-versions -- update from kernel-versions (main/2022.11.14)
* Rear Audio port sometimes has no audio output after reboot(Cirrus Logic)
(LP: #1998905)
- SAUCE: ALSA: hda/cirrus: Add extra 10 ms delay to allow PLL settle and
lock.
* Micron NVME storage failure [1344,5407] (LP: #1998883)
- nvme: add a bogus subsystem NQN quirk for Micron MTFDKBA2T0TFH
* CVE-2022-42896
- Bluetooth: L2CAP: Fix l2cap_global_chan_by_psm
* Fix AMD-PState driver for Genoa CPU (LP: #1998106)
- Documentation: amd-pstate: add tracer tool introduction
- Documentation: amd-pstate: grammar and sentence structure updates
- Documentation: amd-pstate: Add unit test introduction
- cpufreq: amd-pstate: cpufreq: amd-pstate: reset MSR_AMD_PERF_CTL register
at
init
- cpufreq: amd-pstate: change amd-pstate driver to be built-in type
- cpufreq: amd-pstate: add amd-pstate driver parameter for mode selection
- Documentation: amd-pstate: add driver working mode introduction
- Documentation: add amd-pstate kernel command line options
* Mediatek WLAN RZ616(MT7922) SAR table control (LP: #1997200)
- mt76: add 6 GHz band support in mt76_sar_freq_ranges
- mt76: mt7921: introduce ACPI SAR support
- mt76: mt7921: introduce ACPI SAR config in tx power
- wifi: mt76: mt7921: fix use after free in mt7921_acpi_read()
* Add cs35l41 firmware loading support (LP: #1995957)
- ASoC: cs35l41: Remove unnecessary param
- ALSA: cs35l41: Unify hardware configuration
- ALSA: cs35l41: Check hw_config before using it
- ALSA: cs35l41: Move cs35l41_gpio_config to shared lib
- ALSA: hda: cs35l41: Fix I2S params comments
- ALSA: hda: cs35l41: Always configure the DAI
- ALSA: hda: cs35l41: Add Boost type flag
- ALSA: hda: cs35l41: Put the device into safe mode for external boost
- ALSA: hda: cs35l41: Mute the device before shutdown
- ALSA: cs35l41: Enable Internal Boost in shared lib
- ALSA: hda: cs35l41: Move boost config to initialization code
- ALSA: hda: cs35l41: Remove cs35l41_hda_reg_sequence struct
- ALSA: hda: cs35l41: Reorganize log for playback actions
- ALSA: hda: cs35l41: Handle all external boost setups the same way
- ALSA: hda: cs35l41: Move external boost handling to lib for ASoC use
- ASoC: cs35l41: Document CS35l41 External Boost
- ASoC: cs35l41: Support external boost
- ALSA: hda: cs35l41: Fix error in spi cs35l41 hda driver name
- ALSA: hda: cs35l41: Set Speaker Position for CLSA0100 Laptop
- ALSA: hda: cs35l41: Remove Set Channel Map api from binding
- ALSA: hda: cs35l41: Add Support for Interrupts
- ALSA: hda: cs35l41: Enable GPIO2 Interrupt for CLSA0100 laptops
- ASoC: cs35l41: Move cs35l41_set_cspl_mbox_cmd to shared code
- ASoC: cs35l41: Move cs35l41 fs errata into shared code
- ASoC: cs35l41: Move cs_dsp config struct into shared code
- ALSA: hda: cs35l41: Add Amp Name based on channel and index
- ASoC: cs35l41: Move cs35l41 exit hibernate function into shared code
- ASoC: cs35l41: Add common cs35l41 enter hibernate function
- ASoC: cs35l41: Do not print error when waking from hibernation
- ALSA: hda: cs35l41: Don't dereference fwnode handle
- ALSA: hda: cs35l41: Allow compilation test on non-ACPI configurations
- ALSA: hda: cs35l41: Drop wrong use of ACPI_PTR()
- ALSA: hda: cs35l41: Consolidate selections under SND_HDA_SCODEC_CS35L41
- ALSA: hda: hda_cs_dsp_ctl: Add Library to support CS_DSP ALSA controls
- ALSA: hda: hda_cs_dsp_ctl: Add apis to write the controls directly
- ALSA: hda: cs35l41: Save codec object inside component struct
- ALSA: hda: cs35l41: Add initial DSP support and firmware loading
- ALSA: hda: cs35l41: Save Subsystem ID inside CS35L41 Driver
- ALSA: hda: cs35l41: Support reading subsystem id from ACPI
- ALSA: hda: cs35l41: Support multiple load paths for firmware
- ALSA: hda: cs35l41: Support Speaker ID for laptops
- ALSA: hda: cs35l41: Support Hibernation during Suspend
- ALSA: hda: cs35l41: Read Speaker Calibration data from UEFI variables
- ALSA: hda: hda_cs_dsp_ctl: Add fw id strings
- ALSA: hda: cs35l41: Add defaulted values into dsp bypass config sequence
- ALSA: hda: cs35l41: Support Firmware switching and reloading
- ALSA: hda: cs35l41: Add module parameter to control firmware load
- Revert "ALSA: hda: cs35l41: Allow compilation test on non-ACPI
configurations"
- [Config] updateconfigs for SND_HDA_CS_DSP_CONTROLS
* Screen freeze after resuming from suspend (nvme0: I/O timeout)
(LP: #1996048)
- SAUCE: PCI: vmd: Disable MSI remapping after suspend
* Screen cannot turn on after screen off with Matrox G200eW3 [102b:0536]
(LP: #1995573)
- drm: Add DRM-managed mutex_init()
- drm/mgag200: Protect concurrent access to I/O registers with lock
- drm/mgag200: Acquire I/O lock while reading EDID
- drm/mgag200: Optimize damage clips
- drm/mgag200: Add FB_DAMAGE_CLIPS support
- drm/mgag200: Enable atomic gamma lut update
* Fix ath11k deadlock on WCN6855 (LP: #1995041)
- SAUCE: wifi: ath11k: avoid deadlock during regulatory update in
ath11k_regd_update()
* TEE Support for CCP driver (LP: #1991608)
- SAUCE: crypto: ccp: Add support for TEE for PCI ID 0x14CA
* [SRU][J/OEM-5.17][PATCH 0/1] Fix oled brightness set above frame-average
luminance (LP: #1978986)
- drm: New function to get luminance range based on static hdr metadata
- drm/amdgpu_dm: Rely on split out luminance calculation function
- drm/i915: Use luminance range calculated during edid parsing
* Fix Thunderbolt device hotplug fail when connect via thunderbolt dock
(LP: #1991366)
- PCI: Fix used_buses calculation in pci_scan_child_bus_extend()
- PCI: Pass available buses even if the bridge is already configured
- PCI: Move pci_assign_unassigned_root_bus_resources()
- PCI: Distribute available resources for root buses, too
- PCI: Fix whitespace and indentation
- PCI: Fix typo in pci_scan_child_bus_extend()
* support for same series backports versioning numbers (LP: #1993563)
- [Packaging] sameport -- add support for sameport versioning
* Miscellaneous Ubuntu changes
- Fix getabis to check for build2 ppa.
* Miscellaneous upstream changes
- Bluetooth: L2CAP: Fix accepting connection request for invalid SPSM
-- Timo Aaltonen <timo.aalto...@canonical.com> Wed, 07 Dec 2022
13:58:14 +0200
** Changed in: linux-oem-5.17 (Ubuntu Jammy)
Status: Fix Committed => Fix Released
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2022-42896
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https://bugs.launchpad.net/bugs/1995041
Title:
Fix ath11k deadlock on WCN6855
Status in HWE Next:
In Progress
Status in linux package in Ubuntu:
Fix Released
Status in linux-oem-5.17 package in Ubuntu:
Invalid
Status in linux-oem-6.0 package in Ubuntu:
Invalid
Status in linux source package in Jammy:
Fix Committed
Status in linux-oem-5.17 source package in Jammy:
Fix Released
Status in linux-oem-6.0 source package in Jammy:
Fix Released
Status in linux source package in Kinetic:
Fix Committed
Status in linux-oem-5.17 source package in Kinetic:
Invalid
Status in linux-oem-6.0 source package in Kinetic:
Invalid
Bug description:
[Impact]
ath11k is in deadlock when stress reboot or suspend on WCN6855.
sometimes kernel hang.
Aug 19 01:29:28 Thor-P3-AMD-2 kernel: Call Trace:
Aug 19 01:29:28 Thor-P3-AMD-2 kernel: <TASK>
Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __schedule+0x240/0x5a0
Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? resched_curr+0x52/0xc0
Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule+0x55/0xd0
Aug 19 01:29:28 Thor-P3-AMD-2 kernel: schedule_timeout+0x115/0x150
Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? raw_spin_rq_unlock+0x10/0x30
Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? try_to_wake_up+0x211/0x600
Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? ath11k_ce_send+0x17a/0x2e0 [ath11k]
Aug 19 01:29:28 Thor-P3-AMD-2 kernel: wait_for_completion+0x8b/0xf0
Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __flush_work.isra.0+0x171/0x270
Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ? flush_workqueue_prep_pwqs+0x140/0x140
Aug 19 01:29:28 Thor-P3-AMD-2 kernel: __cancel_work_timer+0x11b/0x1a0
Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ?
ath11k_mac_config_mon_status_default+0xcc/0x170 [ath11k]
Aug 19 01:29:28 Thor-P3-AMD-2 kernel: cancel_work_sync+0x10/0x20
Aug 19 01:29:28 Thor-P3-AMD-2 kernel: ath11k_mac_op_stop+0x9f/0x1e0 [ath11k]
Aug 19 01:29:28 Thor-P3-AMD-2 kernel: drv_stop+0x45/0x110 [mac80211]
[Fix]
Fix this by switching from using regulatory_set_wiphy_regd_sync() to
regulatory_set_wiphy_regd(). Now cfg80211 will schedule another workqueue
which
handles the locking on it's own. So the ath11k workqueue can simply exit
without
taking any locks, avoiding the deadlock.
[Test]
Verified on hardware, stress reboot and suspend 30 times OK.
[Where problems could occur]
It may break ath11k wifi driver.
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