// For flags

CVE-2023-52773

drm/amd/display: fix a NULL pointer dereference in amdgpu_dm_i2c_xfer()

Severity Score

5.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: fix a NULL pointer dereference in amdgpu_dm_i2c_xfer() When ddc_service_construct() is called, it explicitly checks both the
link type and whether there is something on the link which will
dictate whether the pin is marked as hw_supported. If the pin isn't set or the link is not set (such as from
unloading/reloading amdgpu in an IGT test) then fail the
amdgpu_dm_i2c_xfer() call.

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/amd/display: corrige una desreferencia de puntero NULL en amdgpu_dm_i2c_xfer(). Cuando se llama a ddc_service_construct(), comprueba explícitamente tanto el tipo de enlace como si hay algo en el enlace que dictará si el pin está marcado como hw_supported. Si el pin no está configurado o el enlace no está configurado (por ejemplo, al descargar/recargar amdgpu en una prueba de IGT), falle la llamada amdgpu_dm_i2c_xfer().

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: fix a NULL pointer dereference in amdgpu_dm_i2c_xfer() When ddc_service_construct() is called, it explicitly checks both the link type and whether there is something on the link which will dictate whether the pin is marked as hw_supported. If the pin isn't set or the link is not set (such as from unloading/reloading amdgpu in an IGT test) then fail the amdgpu_dm_i2c_xfer() call.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
Single
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-05-21 CVE Reserved
  • 2024-05-21 CVE Published
  • 2025-04-15 EPSS Updated
  • 2025-05-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-476: NULL Pointer Dereference
CAPEC
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"
>= 6.0 < 6.1.64
Search vendor "Linux" for product "Linux Kernel" and version " >= 6.0 < 6.1.64"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 6.0 < 6.5.13
Search vendor "Linux" for product "Linux Kernel" and version " >= 6.0 < 6.5.13"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 6.0 < 6.6.3
Search vendor "Linux" for product "Linux Kernel" and version " >= 6.0 < 6.6.3"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 6.0 < 6.7
Search vendor "Linux" for product "Linux Kernel" and version " >= 6.0 < 6.7"
en
Affected