CVE-2026-97513

Received Received - Intake

Use After Free in Linux Kernel Video Driver

Publication date: 2026-09-24

Last updated on: 2026-09-28

Assigner: kernel.org

Description

In the Linux kernel, the following vulnerability has been resolved: media: chips-media: wave5: Release m2m_ctx after Instance Removed from List Possible use after free if IRQ thread manages to obtain spinlock between m2m_ctx release and wave5_release function removing stream instance from list of active instances. The IRQ thread looks for the m2m_ctx which is freed so null pointer dereference occurs.

CVSS Scores

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Meta Information

Published

2026-09-24

Last Modified

2026-09-28

Generated

2026-10-15

AI Q&A

2026-09-24

EPSS Evaluated

2026-10-13

NVD

CVE-2026-97513

EUVD

EUVD-2026-86111

Affected Vendors & Products

Vendor	Product	Version / Range
linux	linux_kernel	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This is a use-after-free vulnerability in the Linux kernel's media subsystem, specifically in the chips-media wave5 driver. It occurs when an IRQ thread tries to access a freed memory context (m2m_ctx) after it has been released but before the stream instance is removed from the active instances list. This leads to a null pointer dereference.

Detection Guidance

This vulnerability is specific to the Linux kernel's media subsystem, particularly the chips-media wave5 driver. Detection requires checking kernel logs for null pointer dereference errors related to the wave5 driver or m2m_ctx handling. Monitor for kernel oops or crashes involving media device drivers.

Impact Analysis

This vulnerability could cause system crashes or instability if exploited. An attacker might trigger the null pointer dereference to crash the kernel or execute arbitrary code with kernel privileges, potentially leading to denial of service or unauthorized access.

Compliance Impact

This vulnerability is a use-after-free issue in the Linux kernel's media subsystem, specifically in the chips-media wave5 driver. It involves a null pointer dereference due to improper handling of m2m_ctx release. While this could potentially lead to system instability or crashes, there is no direct evidence in the provided context that this vulnerability specifically impacts compliance with standards like GDPR or HIPAA.

Mitigation Strategies

Apply the latest kernel updates from your Linux distribution to ensure the vulnerability is patched. If immediate patching is not possible, consider disabling the affected wave5 driver module if not in use. Monitor vendor advisories for updates.

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