This bug was fixed in the package linux - 6.5.0-7.7
---------------
linux (6.5.0-7.7) mantic; urgency=medium
* mantic/linux: 6.5.0-7.7 -proposed tracker (LP: #2037611)
* kexec enable to load/kdump zstd compressed zimg (LP: #2037398)
- [Packaging] Revert arm64 image format to Image.gz
* Mantic minimized/minimal cloud images do not receive IP address during
provisioning (LP: #2036968)
- [Config] Enable virtio-net as built-in to avoid race
* Miscellaneous Ubuntu changes
- SAUCE: Add mdev_set_iommu_device() kABI
- [Config] update gcc version in annotations
-- Andrea Righi <andrea.ri...@canonical.com> Thu, 28 Sep 2023 10:19:24
+0200
** Changed in: linux (Ubuntu)
Status: Confirmed => Fix Released
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Packages, which is subscribed to linux-oem-6.1 in Ubuntu.
https://bugs.launchpad.net/bugs/2029199
Title:
NULL pointer dereference on CS35L41 HDA AMP
Status in HWE Next:
New
Status in linux package in Ubuntu:
Fix Released
Status in linux-oem-6.1 package in Ubuntu:
Invalid
Status in linux-oem-6.5 package in Ubuntu:
Invalid
Status in linux source package in Jammy:
Won't Fix
Status in linux-oem-6.1 source package in Jammy:
Fix Released
Status in linux-oem-6.5 source package in Jammy:
Fix Released
Status in linux source package in Lunar:
Fix Committed
Status in linux-oem-6.1 source package in Lunar:
Invalid
Status in linux-oem-6.5 source package in Lunar:
Invalid
Bug description:
[Impact]
NULL pointer dereference happens because the HDA driver is trying to use
CS35L41 HDA AMP before its probe routine is fully realized.
[Fix]
Use device link to enforce proper probe order.
Since the fixing commit is part of a patch series, pull in the entire series
which has several other important fixes too.
[Test]
Use dmesg to see if there's error. With the fix applied, no more kernel splat
can be found. Hence the system can perform suspend, reboot and shutdown
normally.
[Where problems could occur]
Though the entire series isn't trivia, it's not a major overhaul either. The
entire changeset is limited to CS35L41 AMP, so the scope of regression risk is
constrained.
One possible risk factor is that it may require newer DSP firmware, and we'll
monitor it closely on such scenario.
To manage notifications about this bug go to:
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