SB2025070297 - Resource management error in Linux kernel dml2 dml21 driver

Description

This security bulletin contains information about 1 vulnerability.

1) Resource management error (CVE-ID: CVE-2025-38091)

CWE-ID: CWE-399 - Resource Management Errors

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 perform a denial of service (DoS) attack.

The vulnerability exists due to resource management error within the populate_dml21_plane_config_from_plane_state(), dml21_wrapper_get_plane_id(), map_stream_to_dml21_display_cfg() and dml21_map_dc_state_into_dml_display_cfg() functions in drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_translation_helper.c. A local user can perform a denial of service (DoS) attack.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/2ddac70fed50485aa4ae49cdb7478ce41d8d4715
• https://git.kernel.org/stable/c/6f47d7408133631a1b178f8a04e79aee189ef046
• https://git.kernel.org/stable/c/c53f23f7075c9f63f14d7ec8f2cc3e33e118d986