ACPICA Handler Object Type Validation Vulnerability in Linux Package
Summary
DEBIAN-CVE-2026-97450: In the Linux kernel, the following vulnerability has been resolved: ACPICA: validate handler object type in two places ACPICA: validate handler object type in acpi_ev_has_default_handler() and acpi_ev_find_region_handler... Affects linux versions 6.1.106-1 – 7.2~rc7-1~exp1. No fix is published. How to fix ↓
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Background
The Linux kernel is a core component of the Debian operating system, responsible for managing hardware resources and providing essential services for software applications. It is known for its stability, performance, and security features. However, vulnerabilities can arise, impacting the integrity and security of the system. This specific vulnerability relates to the ACPICA (ACPI Component Architecture) subsystem, which handles power management and hardware configuration in a standardized way.
Vulnerability Detail
In the Linux kernel, a vulnerability has been identified in the ACPICA subsystem where the handler object type is not properly validated in two functions: acpi_ev_has_default_handler() and acpi_ev_find_region_handler(). This oversight could potentially allow an attacker to exploit the system by manipulating handler objects, leading to unauthorized access or system instability. The vulnerability is cataloged as CVE-2026-97450.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
Currently, there are no specific workarounds mentioned for this vulnerability. It is advisable to monitor the system for any unusual activity until the patch is applied.
Conclusion
The ACPICA handler object type validation vulnerability in the Linux kernel poses a significant risk to system security. It is crucial for users to update their systems to the patched version as soon as it becomes available to mitigate potential threats. Utilizing tools like Vulert can help in monitoring vulnerabilities effectively.
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FAQ
CVE-2026-97450 is a vulnerability in the Linux kernel's ACPICA subsystem that involves improper validation of handler object types.
This vulnerability could potentially allow attackers to manipulate handler objects, leading to unauthorized access or system instability.
Yes, a patch is available for Debian 14 (forky) in version 7.2.6-1. Other versions may not have a patch yet.
You can use the Vulert platform to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected.
If you cannot update immediately, monitor your system for any unusual activity and consider implementing additional security measures until the patch is applied.
References
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