What is CVE-2024-35831?

CVE-2024-35831 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Memory Leak flaw (CWE-401), affecting Linux kernel versions from 6.5.7 onward and patched in 6.6.23, 6.7.11, 6.8.2 and others. CVE-2024-35831 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-35831?

CVE-2024-35831 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2024-35831?

Yes, CVE-2024-35831 has been patched. Fixed versions include 6.6.23, 6.7.11, 6.8.2 and others. If you are running Linux kernel 6.5.7 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-35831 actively exploited?

CVE-2024-35831 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Memory Leak (CWE-401)?

The product does not release memory after use, causing gradual resource exhaustion. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/401.html

CVE-2024-35831

Medium

In the Linux kernel, the following vulnerability has been resolved: io_uring: Fix release of pinned pages when __io_uaddr_map fails Looking at the error path of __io_uaddr_map, if we fail after pinning the pages for any reasons, ret will be set to -EINVAL and the error handler won't properly release the pinned pages. I didn't manage to trigger it without forcing a failure, but it can happen in real life when memory is heavily fragmented.

Package Linux Kernel

Published 2024-05-17

Last modified 2025-09-26

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-401

CVE-2024-35831 is a Memory Leak vulnerability

What is Memory Leak?

The product does not release memory after use, causing gradual resource exhaustion. Learn more on MITRE CWE

Affected versions

Linux kernel versions 6.5.7, 6.6 and later are affected. Fixed in 6.6.23, 6.7.11, 6.8.2, 6.9 and their respective stable series.

Affected from

≥ 6.5.7 ≥ 6.6

Fixed in

✓ 6.6.23 6.6.x ✓ 6.7.11 6.7.x ✓ 6.8.2 6.8.x ✓ 6.9

References

4 total

Kernel Git
https://git.kernel.org/stable/c/0b6f39c175ba5f0ef72bdb3b9d2a06ad78621d62

Patch
Kernel Git
https://git.kernel.org/stable/c/4d376d7ad62b6a8e8dfff56b559d9d275e5b9b3a

Patch
Kernel Git
https://git.kernel.org/stable/c/67d1189d1095d471ed7fa426c7e384a7140a5dd7

Patch
Kernel Git
https://git.kernel.org/stable/c/712e2c8415f55a4a4ddaa98a430b87f624109f69

Patch

Details

CVE ID CVE-2024-35831

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-05-17

Modified 2025-09-26

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-35831?

CVE-2024-35831 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a Memory Leak flaw (CWE-401) . It affects Linux kernel versions from 6.5.7 onward and has been patched in 6.6.23, 6.7.11, 6.8.2 and others. CVE-2024-35831 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-35831?

CVE-2024-35831 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2024-35831?

Yes. CVE-2024-35831 has been patched. Fixed versions include 6.6.23, 6.7.11, 6.8.2 and others. If you are running Linux kernel 6.5.7 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-35831 actively exploited?

No. CVE-2024-35831 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.