Unknown [CVE-2026-68199] fix OOB access from firmware ADDBA window size
This security Red Hat Linux advisory covers CVE-2026-68199.
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Summary
A flaw was found in the Linux kernel's `ath6kl` Wi-Fi driver. This vulnerability allows a local attacker to cause an out-of-bounds memory access.
The flaw occurs when the firmware provides an invalid window size during an ADDBA (Add Block Ack) request, leading to incorrect memory allocation. This can result in a denial of service or potentially lead to further system compromise.
Red Hat severity: not rated. Weakness: CWE-787.
Red Hat lists Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9 as not affected.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source
Mitigation
The source record does not include mitigation steps. That is not a statement that no fix exists — read the vendor advisory below for the authoritative guidance.
Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source
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