CVE-2024-42135: linux kernel — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: vhost_task: Handle SIGKILL by flushing work and exiting Instead of lingering until the device is closed, this has us handle SIGKILL by: 1. marking the worker as killed so we no longer try to use it with new virtqueues and new flush operations. 2. setting the virtqueue to worker mapping so no new works are queued. 3. running all the exiting works.

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CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Products

Vendor	Product	Versions
linux	linux_kernel	< 6.6.39
linux	linux_kernel	6.7 — 6.9.9

References

Advisories & Patches

https://git.kernel.org/stable/c/abe067dc3a662eef7d5cddbbc41ed50a0b68b0af https://git.kernel.org/stable/c/db5247d9bf5c6ade9fd70b4e4897441e0269b233 https://git.kernel.org/stable/c/dec987fe2df670827eb53b97c9552ed8dfc63ad4 https://git.kernel.org/stable/c/abe067dc3a662eef7d5cddbbc41ed50a0b68b0af https://git.kernel.org/stable/c/db5247d9bf5c6ade9fd70b4e4897441e0269b233 https://git.kernel.org/stable/c/dec987fe2df670827eb53b97c9552ed8dfc63ad4

Frequently Asked Questions

What is CVE-2024-42135? +

In the Linux kernel, the following vulnerability has been resolved: vhost_task: Handle SIGKILL by flushing work and exiting Instead of lingering until the device is closed, this has us handle SIGKILL by: 1. marking the worker as killed so we no longer try to use it with new virtqueues and new flush operations. 2. setting the virtqueue to worker mapping so no new works are queued. 3. running all the exiting works. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-42135? +

CVE-2024-42135 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-42135? +

CVE-2024-42135 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-42135? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2024-42135