SB2026070265 - NULL pointer dereference in Linux kernel ethernet airoha driver

Description

This security bulletin contains information about 1 vulnerability.

1) NULL pointer dereference (CVE-ID: CVE-2026-53338)

CWE-ID: CWE-476 - NULL Pointer Dereference

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 attacker to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in airoha_qdma_init_hfwd_queues() when processing a missing reserved memory region referenced by the "memory-region" phandle. A local attacker can trigger the vulnerable code path to cause a denial of service.

The issue can occur when the referenced reserved memory entry is absent from the reserved memory table, such as with a misconfigured device tree.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/01f7d4b504580664d36faea5671cde5e3f0d8a5b
• https://git.kernel.org/stable/c/cdb96c42db7b256348f9b57718debfaa4bca6b39
• https://git.kernel.org/stable/c/f9f25118faa4dd2b6e3d14a03d123bbdbd59925d