Skip to main content

Boteraser | Website and Server Security Solutions

🛡️ AZL-77858 — kernel (CVE-2026-23213)

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

CVE-2026-23213 affecting package kernel 6.6.126.1-1

In the Linux kernel, the following vulnerability has been resolved:

drm/amd/pm: Disable MMIO access during SMU Mode 1 reset

During Mode 1 reset, the ASIC undergoes a reset cycle and becomes

temporarily inaccessible via PCIe. Any attempt to access MMIO registers

during this window (e.g., from interrupt handlers or other driver threads)

can result in uncompleted PCIe transactions, leading to NMI panics or

system hangs.

To prevent this, set the no_hw_access flag to true immediately after

triggering the reset. This signals other driver components to skip

register accesses while the device is offline.

A memory barrier smp_mb() is added to ensure the flag update is

globally visible to all cores before the driver enters the sleep/wait

state.

(cherry picked from commit 7edb503fe4b6d67f47d8bb0dfafb8e699bb0f8a4)

Affected software

AZL-77858 is recorded against 1 package.

  • kernel

Timeline and source

Published on 18 February 2026 and last revised on 21 April 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Web)

Other advisories for this package

kernel has other advisories on record. If you are patching this one, these are worth checking on the same host:

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-02-18
Updated 2026-08-20
Modified 2026-04-21
Fix URL N/A

Affected Packages

Software From version Fixed in
kernel — —

Similar Threats

Free Vulnerability Check

Is your site affected by AZL-77858?

BotEraser helps you identify potentially vulnerable plugins and themes by checking your installation against AZL-77858 and other known CVE records.

Scan My Site Free →

No credit card required  ·  Results in minutes

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

Browse related advisories

All advisoriesAzure LinuxAzure Linux Undated
✓