CVE-2024-26648

drm/amd/display: Fix variable deferencing before NULL check in edp_setup_replay()

Severity Score

5.5

*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/amd/display: Fix variable deferencing before NULL check in edp_setup_replay()

In edp_setup_replay(), 'struct dc *dc' & 'struct dmub_replay *replay'
was dereferenced before the pointer 'link' & 'replay' NULL check.

Fixes the below:
drivers/gpu/drm/amd/amdgpu/../display/dc/link/protocols/link_edp_panel_control.c:947 edp_setup_replay() warn: variable dereferenced before check 'link' (see line 933)

En el kernel de Linux, se resolvió la siguiente vulnerabilidad: drm/amd/display: se corrigió la diferenciación de variables antes de la verificación NULL en edp_setup_replay() En edp_setup_replay(), se eliminó la referencia a 'struct dc *dc' y 'struct dmub_replay *replay' antes de la comprobación NULL del puntero 'enlace' y 'repetición'. Corrige lo siguiente: drivers/gpu/drm/amd/amdgpu/../display/dc/link/protocols/link_edp_panel_control.c:947 edp_setup_replay() advertencia: variable desreferenciada antes de marcar 'enlace' (ver línea 933)

*Credits: N/A

CVSS Scores

CISAv3.1 5.5

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

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

2024-02-19 CVE Reserved
2024-03-26 CVE Published
2024-03-27 EPSS Updated
2024-12-19 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (3)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/22ae604aea14756954e1c00ae653e34d2afd2935	2024-02-01
https://git.kernel.org/stable/c/c02d257c654191ecda1dc1af6875d527e85310e7	2024-02-01
https://git.kernel.org/stable/c/7073934f5d73f8b53308963cee36f0d389ea857c	2024-01-15

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"				< 6.6.15 Search vendor "Linux" for product "Linux Kernel" and version " < 6.6.15"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.7.3 Search vendor "Linux" for product "Linux Kernel" and version " < 6.7.3"		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