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CVE-2026-46240

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: media: iris: Fix use-after-free in iris_release_internal_buffers() The recent change in commit 1dabf00ee206 ("media: iris: gen1…

Published May 28, 2026linuxCWE-416EPSS 0.12%

Overview

CVE-2026-46240 is a high-severity vulnerability affecting linux linux_kernel. It was published on May 28, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. 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:

media: iris: Fix use-after-free in iris_release_internal_buffers()

The recent change in commit 1dabf00ee206 ("media: iris: gen1: Destroy

internal buffers after FW releases") introduced a regression where

session_release_buf() may free the buffer. The caller,

iris_release_internal_buffers(), continued to access `buffer` after the

call, leading to a potential use-after-free.

Fix this by setting BUF_ATTR_PENDING_RELEASE before calling

session_release_buf(), and reverting the flag if the call fails. This

ensures no dereference occurs after potential freeing.

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

VendorProductVersionsStatus
linuxlinux_kernel>= 6.18.16, < 6.18.32Affected

References

Refgit.kernel.org/stable/c/18c64439f249859b6140f7bf8bcf95c8ed841f28Refgit.kernel.org/stable/c/dd24998a4a4016fb9921916024399bd80f0d45c6Refgit.kernel.org/stable/c/f27cfdcfc916bb59297825805f4c3499f89f9e76

How CyberStrike helps

Frequently asked questions

What is CVE-2026-46240?

CVE-2026-46240 is a high-severity vulnerability affecting linux linux_kernel. It was published on May 28, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-46240?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-46240?

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-2026-46240?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-46240 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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