SB20260917148 - Release of invalid pointer or reference in Linux kernel amd amdkfd driver

Description

This security bulletin contains information about 1 vulnerability.

1) Release of invalid pointer or reference (CVE-ID: CVE-2026-89810)

CWE-ID: CWE-763 - Release of invalid pointer or reference

CVSSv4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a local user to compromise confidentiality, integrity, and availability.

The vulnerability exists due to release of an invalid page reference in svm_migrate_copy_to_ram when handling a failed page migration from device memory to system RAM. A local user can trigger a failed page migration to compromise confidentiality, integrity, and availability.

The issue can occur with IOMMU enabled.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/960c4a8069bfd352c48cc88592618f1ebe24c69e
• https://git.kernel.org/stable/c/a2035918a7a1d8fd3bb79d22e1e149294a5a8418
• https://git.kernel.org/stable/c/da87bcad1f781d822e7ced6d1de9dbc6d381c72e