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Google: sys-kernel/lakitu-kernel-6_1: security update to 18244.85.5

medium Tenable Cloud Security Plugin ID 451673

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - In the Linux kernel, the following vulnerability has been resolved: vfio/pci: Create persistent INTx
 handler A vulnerability exists where the eventfd for INTx signaling can be deconfigured, which unregisters
 the IRQ handler but still allows eventfds to be signaled with a NULL context through the SET_IRQS ioctl or
 through unmask irqfd if the device interrupt is pending. Ideally this could be solved with some additional
 locking; the igate mutex serializes the ioctl and config space accesses, and the interrupt handler is
 unregistered relative to the trigger, but the irqfd path runs asynchronous to those. The igate mutex
 cannot be acquired from the atomic context of the eventfd wake function. Disabling the irqfd relative to
 the eventfd registration is potentially incompatible with existing userspace. As a result, the solution
 implemented here moves configuration of the INTx interrupt handler to track the lifetime of the INTx
 context object and irq_type configuration, rather than registration of a particular trigger eventfd.
 Synchronization is added between the ioctl path and eventfd_signal() wrapper such that the eventfd trigger
 can be dynamically updated relative to in-flight interrupts or irqfd callbacks. (CVE-2024-26812)

Solution

Update the sys-kernel/lakitu-kernel-6_1 library and its related packages to version 18244.85.5 or later.

See Also

https://storage.googleapis.com/cos-oval-vulnerability-feed/cos-113.oval.xml.tar.gz

Plugin Details

Severity: Medium

ID: 451673

Version: Revision 1.2

Type: Local

Published: 10/1/2026

Updated: 10/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

Vendor

Vendor Severity: MEDIUM

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C

CVSS Score Source: CVE-2024-26812

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Reference Information

CVE: CVE-2024-26812