CVE-2024-26647

drm/amd/display: Fix late derefrence 'dsc' check in 'link_set_dsc_pps_packet()'

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/amd/display: Fix late derefrence 'dsc' check in 'link_set_dsc_pps_packet()'

In link_set_dsc_pps_packet(), 'struct display_stream_compressor *dsc'
was dereferenced in a DC_LOGGER_INIT(dsc->ctx->logger); before the 'dsc'
NULL pointer check.

Fixes the below:
drivers/gpu/drm/amd/amdgpu/../display/dc/link/link_dpms.c:905 link_set_dsc_pps_packet() warn: variable dereferenced before check 'dsc' (see line 903)

En el kernel de Linux, se resolvió la siguiente vulnerabilidad: drm/amd/display: se corrigió la verificación de desrefrence tardía 'dsc' en 'link_set_dsc_pps_packet()'. En link_set_dsc_pps_packet(), se eliminó la referencia a 'struct display_stream_compressor *dsc' en un DC_LOGGER_INIT(dsc- >ctx->registrador); antes de la verificación del puntero NULL 'dsc'. Corrige lo siguiente: drivers/gpu/drm/amd/amdgpu/../display/dc/link/link_dpms.c:905 link_set_dsc_pps_packet() advertencia: variable desreferenciada antes de verificar 'dsc' (consulte la línea 903)

*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

2024-02-19 CVE Reserved
2024-03-26 CVE Published
2024-03-27 EPSS Updated
2024-08-02 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/6aa5ede6665122f4c8abce3c6eba06b49e54d25c	2024-02-01
https://git.kernel.org/stable/c/cf656fc7276e5b3709a81bc9d9639459be2b2647	2024-02-01
https://git.kernel.org/stable/c/3bb9b1f958c3d986ed90a3ff009f1e77e9553207	2024-01-18

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