SB20260507265 - Memory leak in Linux kernel ethernet airoha driver

Description

This security bulletin contains information about 1 vulnerability.

1) Memory leak (CVE-ID: CVE-2026-43102)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

CVSSv4: 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/E:U/U:Clear

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

The vulnerability exists due to a memory leak in airoha_qdma_rx_process() when processing received packet buffers on an error path. A local user can trigger error conditions to cause a denial of service.

The issue occurs for buffers belonging to the non-linear part of an skb when a page_pool fragment is not linked to the skb and is not returned to the pool.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/285fa6b1e03cff78ead0383e1b259c44b95faf90
• https://git.kernel.org/stable/c/4429b761874fb9c7767d12d98913a467ef2654f1
• https://git.kernel.org/stable/c/7ee0063fbab8aea8f4e4e3165f541bf898b77b80