SB20260720419 - Improper control of a resource through its lifetime in Linux kernel ethernet airoha driver

Description

This security bulletin contains information about 1 vulnerability.

1) Improper control of a resource through its lifetime (CVE-ID: CVE-2026-63859)

CWE-ID: CWE-664 - Improper control of a resource through its lifetime

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource state management in airoha_qdma_cleanup_tx_queue() when cleaning up transmit queues. A local user can trigger transmit queue cleanup in a way that leaves DMA TX descriptors and queue indexes in an inconsistent state to cause a denial of service.

The issue affects the Airoha Ethernet driver in the Linux kernel.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/3309965fe44c00fd65af7cef5016e9e782c021a7
• https://git.kernel.org/stable/c/9b5d56fe389d68ede080c716e6f10895facaf7db
• https://git.kernel.org/stable/c/c0cfce4d76702dba9601a4020df1a0bc35806efc