CVE-2024-49918

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-49918
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Add null check for head_pipe in dcn32_acquire_idle_pipe_for_head_pipe_in_layer This commit addresses a potential null pointer dereference issue in the `dcn32_acquire_idle_pipe_for_head_pipe_in_layer` function. The issue could occur when `head_pipe` is null. The fix adds a check to ensure `head_pipe` is not null before asserting it. If `head_pipe` is null, the function returns NULL to prevent a potential null pointer dereference. Reported by smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/resource/dcn32/dcn32_resource.c:2690 dcn32_acquire_idle_pipe_for_head_pipe_in_layer() error: we previously assumed 'head_pipe' could be null (see line 2681)

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/4f47292f488fa7041284dca1f1244116c18721f1 Patch
https://git.kernel.org/stable/c/96d4c2ee18d732a248d053aae8c4a27cb1d68d1c Patch
https://git.kernel.org/stable/c/ac2140449184a26eac99585b7f69814bd3ba8f2d Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
History

24 Oct 2024, 16:49

Type Values Removed Values Added
First Time Linux linux Kernel
Linux
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
References () https://git.kernel.org/stable/c/4f47292f488fa7041284dca1f1244116c18721f1 - () https://git.kernel.org/stable/c/4f47292f488fa7041284dca1f1244116c18721f1 - Patch
References () https://git.kernel.org/stable/c/96d4c2ee18d732a248d053aae8c4a27cb1d68d1c - () https://git.kernel.org/stable/c/96d4c2ee18d732a248d053aae8c4a27cb1d68d1c - Patch
References () https://git.kernel.org/stable/c/ac2140449184a26eac99585b7f69814bd3ba8f2d - () https://git.kernel.org/stable/c/ac2140449184a26eac99585b7f69814bd3ba8f2d - Patch
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CWE CWE-476

23 Oct 2024, 15:13

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/amd/display: Agregar comprobación NULL para head_pipe en dcn32_acquire_idle_pipe_for_head_pipe_in_layer Esta confirmación soluciona un posible problema de desreferencia de puntero nulo en la función `dcn32_acquire_idle_pipe_for_head_pipe_in_layer`. El problema podría ocurrir cuando `head_pipe` es nulo. La corrección agrega una comprobación para garantizar que `head_pipe` no sea nulo antes de afirmarlo. Si `head_pipe` es nulo, la función devuelve NULL para evitar una posible desreferencia de puntero nulo. Reportado por smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/resource/dcn32/dcn32_resource.c:2690 Error de dcn32_acquire_idle_pipe_for_head_pipe_in_layer(): anteriormente asumimos que 'head_pipe' podría ser nulo (ver línea 2681)

21 Oct 2024, 18:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-10-21 18:15

Updated : 2024-10-24 16:49

NVD link : CVE-2024-49918

Mitre link : CVE-2024-49918

CVE.ORG link : CVE-2024-49918

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-476

NULL Pointer Dereference