CVE-2026-23094: uacce: fix isolate sysfs check condition
In the Linux kernel, the following vulnerability has been resolved:
uacce: fix isolate sysfs check condition
uacce supports the device isolation feature. If the driver implements the isolateerrthresholdread and isolateerrthresholdwrite callback functions, uacce will create sysfs files now. Users can read and configure the isolation policy through sysfs. Currently, sysfs files are created as long as either isolateerrthresholdread or isolateerrthresholdwrite callback functions are present.
However, accessing a non-existent callback function may cause the system to crash. Therefore, intercept the creation of sysfs if neither read nor write exists; create sysfs if either is supported, but intercept unsupported operations at the call site.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2026-23094?
The severity of CVE-2026-23094 is categorized as medium risk due to potential unauthorized access to device isolation features.
How do I fix CVE-2026-23094?
To fix CVE-2026-23094, update the Linux kernel to the latest version that contains the patch for this vulnerability.
What systems are affected by CVE-2026-23094?
CVE-2026-23094 affects the Linux kernel, specifically systems utilizing the uacce device isolation feature.
What is the impact of CVE-2026-23094?
CVE-2026-23094 may allow an attacker to bypass device isolation, potentially leading to privilege escalation.
When was CVE-2026-23094 disclosed?
CVE-2026-23094 was disclosed in 2026 as part of ongoing security updates to the Linux kernel.