// 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().

*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
* 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
  • 2024-05-24 EPSS Updated
  • 2024-08-02 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