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CVE-2024-26832

5.5 · MEDIUM
Published Apr 17, 2024 linux CWE-459 EPSS 0.22% (13th pctl)

Overview

CVE-2024-26832 is a medium-severity vulnerability affecting linux linux_kernel. It was published on April 17, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical Description

In the Linux kernel, the following vulnerability has been resolved:

mm: zswap: fix missing folio cleanup in writeback race path

In zswap_writeback_entry(), after we get a folio from

__read_swap_cache_async(), we grab the tree lock again to check that the

swap entry was not invalidated and recycled. If it was, we delete the

folio we just added to the swap cache and exit.

However, __read_swap_cache_async() returns the folio locked when it is

newly allocated, which is always true for this path, and the folio is

ref'd. Make sure to unlock and put the folio before returning.

This was discovered by code inspection, probably because this path handles

a race condition that should not happen often, and the bug would not crash

the system, it will only strand the folio indefinitely.

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected Products

Vendor Product Versions Status
linux linux_kernel >= 6.1.30, < 6.1.80 Affected

References

Ref git.kernel.org/stable/c/14f1992430ef9e647b02aa8ca12c5bcb9a1dffea Ref git.kernel.org/stable/c/6156277d1b26cb3fdb6fcbf0686ab78268571644 Ref git.kernel.org/stable/c/e2891c763aa2cff74dd6b5e978411ccf0cf94abe Ref git.kernel.org/stable/c/e3b63e966cac0bf78aaa1efede1827a252815a1d Ref git.kernel.org/stable/c/14f1992430ef9e647b02aa8ca12c5bcb9a1dffea Ref git.kernel.org/stable/c/6156277d1b26cb3fdb6fcbf0686ab78268571644 Ref git.kernel.org/stable/c/e2891c763aa2cff74dd6b5e978411ccf0cf94abe Ref git.kernel.org/stable/c/e3b63e966cac0bf78aaa1efede1827a252815a1d

Frequently Asked Questions

What is CVE-2024-26832?

CVE-2024-26832 is a medium-severity vulnerability affecting linux linux_kernel. It was published on April 17, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-26832?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-26832?

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-26832?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-26832 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.

How CyberStrike Helps

Autonomous Discovery

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HackBrowser

Browser-based exploitation validates findings with real proof-of-concept.

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