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CVE-2026-68231

Published Aug 10, 2026 EPSS 0.22% (12th pctl)

Overview

CVE-2026-68231 is a known-severity vulnerability. It was published on August 10, 2026.

Technical Description

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

media: airspy: Return queued buffers on start_streaming() failure

The vb2 framework hands buffers to the driver via buf_queue() before

calling start_streaming(). If start_streaming() returns an error

without first returning those buffers via vb2_buffer_done(),

vb2_start_streaming() fires WARN_ON(owned_by_drv_count) and the queued

buffers leak.

airspy_start_streaming() returned -ENODEV early when the USB device had

been disconnected (s->udev == NULL) without returning any buffers that

buf_queue() had already accepted. Take v4l2_lock first and jump to the

existing err_clear_bit label, which already drains s->queued_bufs via

vb2_buffer_done(..., VB2_BUF_STATE_QUEUED) before unlocking.

This mirrors the uvcvideo fix in commit 4cf3b6fd54eb ("media: uvcvideo:

Return queued buffers on start_streaming() failure").

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

References

Ref git.kernel.org/stable/c/04344d0b4929caa94c0df72f767752aa0935ef5d Ref git.kernel.org/stable/c/122ce0c0af629a8765ddf1adf6fb85c6db3d47cb Ref git.kernel.org/stable/c/170fcc945bc094b1c956bf555c070692826a3eff Ref git.kernel.org/stable/c/73bd2779865372b1017d4f555b45270aa2d0d710 Ref git.kernel.org/stable/c/877686a74ecdc93dcaee09dbac566e819059c9e7 Ref git.kernel.org/stable/c/badceeb82a9d8d8e98d07859f3c89130ae1998b9 Ref git.kernel.org/stable/c/bcdf261c4c29077fc3da6449f7eda77357046205 Ref git.kernel.org/stable/c/cd42623d698b59f1fe5768f78a4101c28d5feb2e

Frequently Asked Questions

What is CVE-2026-68231?

CVE-2026-68231 is a known-severity vulnerability. It was published on August 10, 2026.

How severe is CVE-2026-68231?

CVSS score information is not yet available for this vulnerability. Check back as the CVE record is updated by NVD analysts.

How do I fix or remediate CVE-2026-68231?

Check the references section for vendor advisories, patches, and mitigation guidance. 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-2026-68231?

CyberStrike's AI-powered security agents can automatically detect CVE-2026-68231 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.

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