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CVE-2026-68198

8.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: wifi: ath6kl: fix use-after-free in aggr_reset_state() The aggr_reset_state() function uses timer_delete() (non-synchronous) fo…

Published Aug 10, 2026EPSS 0.27%

Overview

CVE-2026-68198 is a high-severity vulnerability. It was published on August 10, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

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

wifi: ath6kl: fix use-after-free in aggr_reset_state()

The aggr_reset_state() function uses timer_delete() (non-synchronous)

for the aggregation timer before proceeding to delete TID state and

before the structure is freed by callers like aggr_module_destroy().

If the timer callback (aggr_timeout) is executing when aggr_reset_state()

is called, the callback will continue to access aggr_conn fields like

rx_tid[] and stat[] which may be freed immediately after by

kfree(aggr_info->aggr_conn) in aggr_module_destroy().

Additionally, the timer callback can re-arm itself via mod_timer() while

aggr_reset_state() is running, creating a more complex race condition.

Use timer_delete_sync() instead to ensure any running timer callback

has completed before returning.

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

Refgit.kernel.org/stable/c/17ff29cd8dbc977c97788a5f7c011ec807b58242Refgit.kernel.org/stable/c/18965470d41e69d3fc10eb62afae29d10f4cdfd1Refgit.kernel.org/stable/c/2132a6db05846dd2318857d00e0c1291f9e41b29Refgit.kernel.org/stable/c/64af6534a085f49d6ed33338a19ab9cf0d0523c9Refgit.kernel.org/stable/c/a1bac650b2d6b1baab1f3e78e2e007a6e2948ddeRefgit.kernel.org/stable/c/a3313111b5d9046af60b370c93eec105b27380c1Refgit.kernel.org/stable/c/b5d618fd61b9069b4c0a6b487022dd3117ad5accRefgit.kernel.org/stable/c/ba7debb4dd6427386862220e8335a53a4bfc235d

How CyberStrike helps

Frequently asked questions

What is CVE-2026-68198?

CVE-2026-68198 is a high-severity vulnerability. It was published on August 10, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-68198?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-68198?

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-2026-68198?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-68198 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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