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CVE-2026-63822

Published Jul 19, 2026 EPSS 0.17% (7th pctl)

Overview

CVE-2026-63822 is a known-severity vulnerability. It was published on July 19, 2026.

Technical Description

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

wifi: ath11k: fix warning when unbinding

If there is an error during some initialization related to firmware,

the buffers dp->tx_ring[i].tx_status are released.

However this is released again when the device is unbinded (ath11k_pci),

and we get:

WARNING: CPU: 0 PID: 6231 at mm/slub.c:4368 free_large_kmalloc+0x57/0x90

Call Trace:

free_large_kmalloc

ath11k_dp_free

ath11k_core_deinit

ath11k_pci_remove

...

The issue is always reproducible from a VM because the MSI addressing

initialization is failing.

In order to fix the issue, just set the buffers to NULL after releasing in

order to avoid the double free.

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/051f954b94479d72222c9fbc82a3eef4777bca01 Ref git.kernel.org/stable/c/0a946abb82f29abe9a15173b707a449cb039b43e Ref git.kernel.org/stable/c/0aa097a370277deab5337030b9e2d395742f469c Ref git.kernel.org/stable/c/318703b6f71d1a29ee0ac46c32a38f7734d4cfb2 Ref git.kernel.org/stable/c/40aa3c2b0cb8e34e0576fc94cc70e4e33db03c0a Ref git.kernel.org/stable/c/7b2e62b9080bf4a5f4e70cfe47156df8d93a4f13 Ref git.kernel.org/stable/c/8b7a26b6681922a38cd5a7829ace61f8e54df9b7 Ref git.kernel.org/stable/c/e569a5cb401a267168621aa9a1e7f07fcc9612c3

Frequently Asked Questions

What is CVE-2026-63822?

CVE-2026-63822 is a known-severity vulnerability. It was published on July 19, 2026.

How severe is CVE-2026-63822?

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-2026-63822?

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-2026-63822?

CyberStrike's AI-powered security agents can automatically detect CVE-2026-63822 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

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