Public bug reported:
An unattended upgrade from the 7.0.0-31-generic kernel to the
7.0.0-38-generic kernel started causing random freezes on my Lenovo
Legion 5 15IAX10 laptop, reverting back to 7.0.0-34-generic seems to fix
my issues.
I was able to switch to a tty and take a photo (attached), it seems like
a kernel bug where CPU is stuck on a spin lock waiting for something.
```
$ grep -C 2 -i "linux-image" /var/log/apt/history.log
Start-Date: 2026-10-08 09:10:45
Commandline: /usr/bin/unattended-upgrade
Install: linux-modules-7.0.0-38-generic:amd64 (7.0.0-38.38, automatic),
linux-image-7.0.0-38-generic:amd64 (7.0.0-38.38, automatic),
linux-headers-7.0.0-38-generic:amd64 (7.0.0-38.38, automatic),
linux-tools-7.0.0-38:amd64 (7.0.0-38.38, automatic),
linux-headers-7.0.0-38:amd64 (7.0.0-38.38, automatic),
linux-tools-7.0.0-38-generic:amd64 (7.0.0-38.38, automatic),
linux-main-modules-zfs-7.0.0-38-generic:amd64 (7.0.0-38.38, automatic)
Upgrade: linux-generic-hwe-24.04:amd64 (7.0.0-34.34, 7.0.0-38.38),
linux-image-generic-hwe-26.04:amd64 (7.0.0-34.34, 7.0.0-38.38),
linux-tools-common:amd64 (7.0.0-34.34, 7.0.0-38.38),
linux-headers-generic:amd64 (7.0.0-34.34, 7.0.0-38.38), linux-perf:amd64
(7.0.0-34.34, 7.0.0-38.38), linux-headers-generic-hwe-26.04:amd64 (7.0.0-34.34,
7.0.0-38.38), linux-generic-hwe-26.04:amd64 (7.0.0-34.34, 7.0.0-38.38),
linux-generic:amd64 (7.0.0-34.34, 7.0.0-38.38), linux-image-generic:amd64
(7.0.0-34.34, 7.0.0-38.38), bpftool:amd64 (7.7.0+7.0.0-34.34,
7.7.0+7.0.0-38.38), linux-libc-dev:amd64 (7.0.0-34.34, 7.0.0-38.38)
End-Date: 2026-10-08 09:11:28
--
Start-Date: 2026-10-08 09:12:00
Commandline: /usr/bin/unattended-upgrade
Remove: linux-image-7.0.0-31-generic:amd64 (7.0.0-31.31),
linux-modules-7.0.0-31-generic:amd64 (7.0.0-31.31),
linux-main-modules-zfs-7.0.0-31-generic:amd64 (7.0.0-31.31+2)
End-Date: 2026-10-08 09:12:06
```
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "PXL_20261012_095248920.jpg"
https://bugs.launchpad.net/bugs/2170572/+attachment/6008460/+files/PXL_20261012_095248920.jpg
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https://bugs.launchpad.net/bugs/2170572
Title:
linux-image-7.0.0-38-generic randomly freezes Lenovo Legion 5
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