CVE-2023-52586

drm/msm/dpu: Add mutex lock in control vblank irq

Severity Score

"-"

*CVSS v-

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/msm/dpu: Add mutex lock in control vblank irq

Add a mutex lock to control vblank irq to synchronize vblank
enable/disable operations happening from different threads to prevent
race conditions while registering/unregistering the vblank irq callback.

v4: -Removed vblank_ctl_lock from dpu_encoder_virt, so it is only a
parameter of dpu_encoder_phys.
-Switch from atomic refcnt to a simple int counter as mutex has
now been added
v3: Mistakenly did not change wording in last version. It is done now.
v2: Slightly changed wording of commit message

Patchwork: https://patchwork.freedesktop.org/patch/571854/

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/msm/dpu: agregue un bloqueo mutex en el control vblank irq. Agregue un bloqueo mutex para controlar vblank irq para sincronizar las operaciones de activación/desactivación de vblank que ocurren desde diferentes subprocesos para evitar condiciones de ejecución durante el registro. /anular el registro de la devolución de llamada vblank irq. v4: -Se eliminó vblank_ctl_lock de dpu_encoder_virt, por lo que es solo un parámetro de dpu_encoder_phys. -Cambiar de refcnt atómico a un contador int simple ya que ahora se ha agregado mutex v3: por error no cambió la redacción en la última versión. Ya está hecho. v2: redacción ligeramente modificada del mensaje de confirmación Patchwork: https://patchwork.freedesktop.org/patch/571854/

*Credits: N/A

CVSS Scores

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-03-02 CVE Reserved
2024-03-06 CVE Published
2024-03-06 EPSS Updated
2024-09-11 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/14f109bf74dd67e1d0469fed859c8e506b0df53f	2024-02-05
https://git.kernel.org/stable/c/45284ff733e4caf6c118aae5131eb7e7cf3eea5a	2023-12-14

URL	Date	SRC

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"				< 6.7.4 Search vendor "Linux" for product "Linux Kernel" and version " < 6.7.4"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.8 Search vendor "Linux" for product "Linux Kernel" and version " < 6.8"		en		Affected