CVE-2024-44931: linux kernel — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: gpio: prevent potential speculation leaks in gpio_device_get_desc() Userspace may trigger a speculative read of an address outside the gpio descriptor array. Users can do that by calling gpio_ioctl() with an offset out of range. Offset is copied from user and then used as an array index to get the gpio descriptor without sanitization in gpio_device_get_desc(). This change ensures that the offset is sanitized by using array_index_nospec() to mitigate any possibility of speculative information leaks. This bug was discovered and resolved using Coverity Static Analysis Security Testing (SAST) by Synopsys, Inc.

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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:H/I:N/A:N

Affected Products

Vendor	Product	Versions
linux	linux_kernel	< 6.6.46
linux	linux_kernel	6.7 — 6.10.5

References

Advisories & Patches

https://git.kernel.org/stable/c/1b955f786a4bcde8c0ccb2b7d519def2acb6f3cc https://git.kernel.org/stable/c/d776c0486b03a5c4afca65b8ff44573592bf93bb https://git.kernel.org/stable/c/d795848ecce24a75dfd46481aee066ae6fe39775

Other References

https://git.kernel.org/stable/c/18504710442671b02d00e6db9804a0ad26c5a479 https://git.kernel.org/stable/c/672c19165fc96dfad531a5458e0b3cdab414aae4 https://git.kernel.org/stable/c/9ae2d8e75b741dbcb0da374753f972410e83b5f3 https://git.kernel.org/stable/c/9d682e89c44bd5819b01f3fbb45a8e3681a4b6d0 https://git.kernel.org/stable/c/c65ab97efcd438cb4e9f299400f2ea55251f3a67 https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html

Frequently Asked Questions

What is CVE-2024-44931? +

In the Linux kernel, the following vulnerability has been resolved: gpio: prevent potential speculation leaks in gpio_device_get_desc() Userspace may trigger a speculative read of an address outside the gpio descriptor array. Users can do that by calling gpio_ioctl() with an offset out of range. Offset is copied from user and then used as an array index to get the gpio descriptor without sanitization in gpio_device_get_desc(). This change ensures that the offset is sanitized by using array_index_nospec() to mitigate any possibility of speculative information leaks. This bug was discovered and resolved using Coverity Static Analysis Security Testing (SAST) by Synopsys, Inc. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-44931? +

CVE-2024-44931 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-2024-44931? +

CVE-2024-44931 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-2024-44931? +

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-2024-44931