Package: linux-image-amd64
Version: 6.12.88-1
Severity: important
Tags: upstream
X-Debbugs-Cc: [email protected], [email protected]
User: [email protected]
Usertags: amd64
Dear Maintainer,
*** Reporter, please consider answering these questions, where appropriate ***
* What led up to the situation?
After upgrading from linux-image-6.12.85+deb13-amd64 to
linux-image-6.12.85+deb13-amd64 for fix of CVE-2026-31431, and
to linux-image-6.12.88+deb13-amd64 for fix of later CVE(s), my
ThinkPad T16 AMD 2023 frequently goes black after resuming from
suspend state. The problem can be reproduced when I was running
linux-image-6.12.85+deb13-amd64 or linux-image-6.12.88+deb13-amd64.
Call Trace from journalctl --dmesg that keep appearing during the
problematic period:
<TASK>
__schedule+0x505/0xc00
schedule+0x27/0xf0
schedule_timeout+0x12f/0x160
wait_for_completion+0x8a/0x160
__flush_work+0x269/0x350
? __pfx_wq_barrier_func+0x10/0x10
__lru_add_drain_all+0x143/0x1e0
khugepaged+0x65/0x940
? __pfx_autoremove_wake_function+0x10/0x10
? __pfx_khugepaged+0x10/0x10
kthread+0xcf/0x100
? __pfx_kthread+0x10/0x10
ret_from_fork+0x31/0x50
? __pfx_kthread+0x10/0x10
ret_from_fork_asm+0x1a/0x30
</TASK>
I can provide more kernel log if requested. I assume this is an
upstream issue, but up until current latest stable Debian kernel
as of 2026-05-20 the problem persist. Can't reproduce the issue
on 6.12.74+deb13.
* What exactly did you do (or not do) that was effective (or
ineffective)?
Suspend and then resume my laptop.
* What was the outcome of this action?
When the screen goes black, I can not use my laptop locally as
there is no feedback. Closing the laptop lid and opening it again
makes the screen go back to normal for a dozen of seconds and it
would went black again.
* What outcome did you expect instead?
Suspend and resuming would work normally.
To prevent affecting my daily usage, I have to reboot back into
linux-image-6.12.74+deb13+1-amd64 and keep using workarounds of
recent LPE CVEs.
-- System Information:
Debian Release: 13.5
APT prefers stable-security
APT policy: (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 6.12.74+deb13+1-amd64 (SMP w/12 CPU threads; PREEMPT)
Locale: LANG=zh_CN.UTF-8, LC_CTYPE=zh_CN.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages linux-image-amd64 depends on:
ii linux-image-6.12.88+deb13-amd64 6.12.88-1
linux-image-amd64 recommends no packages.
linux-image-amd64 suggests no packages.
-- no debconf information
