CVE-2024-36022

drm/amdgpu: Init zone device and drm client after mode-1 reset on reload

Severity Score

4.4

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

In the Linux kernel, the following vulnerability has been resolved:

drm/amdgpu: Init zone device and drm client after mode-1 reset on reload

In passthrough environment, when amdgpu is reloaded after unload, mode-1
is triggered after initializing the necessary IPs, That init does not
include KFD, and KFD init waits until the reset is completed. KFD init
is called in the reset handler, but in this case, the zone device and
drm client is not initialized, causing app to create kernel panic.

v2: Removing the init KFD condition from amdgpu_amdkfd_drm_client_create.
As the previous version has the potential of creating DRM client twice.

v3: v2 patch results in SDMA engine hung as DRM open causes VM clear to SDMA
before SDMA init. Adding the condition to in drm client creation, on top of v1,
to guard against drm client creation call multiple times.

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/amdgpu: dispositivo de zona de inicio y cliente drm después del restablecimiento del modo 1 al recargar. En el entorno de paso a través, cuando amdgpu se recarga después de la descarga, el modo 1 se activa después de inicializar las IP necesarias. Ese inicio no incluye KFD, y el inicio de KFD espera hasta que se complete el reinicio. Se llama a KFD init en el controlador de reinicio, pero en este caso, el dispositivo de zona y el cliente drm no se inicializan, lo que hace que la aplicación genere pánico en el kernel. v2: Eliminación de la condición KFD inicial de amdgpu_amdkfd_drm_client_create. Como la versión anterior tiene el potencial de crear un cliente DRM dos veces. v3: el parche v2 hace que el motor SDMA se bloquee porque la apertura de DRM hace que la VM se borre a SDMA antes de que se inicie SDMA. Agregar la condición a la creación del cliente DRM, además de la versión 1, para protegerse contra llamadas de creación del cliente DRM varias veces.

*Credits: N/A

CVSS Scores

Red Hatv3.1 4.4

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-05-17 CVE Reserved
2024-05-30 CVE Published
2024-05-31 EPSS Updated
2024-11-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-908: Use of Uninitialized Resource

CAPEC

References (4)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/4f8154f775197d0021b690c2945d6a4d8094c8f6	2024-04-13
https://git.kernel.org/stable/c/f679fd6057fbf5ab34aaee28d58b7f81af0cbf48	2024-03-20

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2024-36022	2024-11-12
https://bugzilla.redhat.com/show_bug.cgi?id=2284427	2024-11-12

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.8.6 Search vendor "Linux" for product "Linux Kernel" and version " < 6.8.6"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.9 Search vendor "Linux" for product "Linux Kernel" and version " < 6.9"		en		Affected