CVE-2024-57798

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-57798
In the Linux kernel, the following vulnerability has been resolved: drm/dp_mst: Ensure mst_primary pointer is valid in drm_dp_mst_handle_up_req() While receiving an MST up request message from one thread in drm_dp_mst_handle_up_req(), the MST topology could be removed from another thread via drm_dp_mst_topology_mgr_set_mst(false), freeing mst_primary and setting drm_dp_mst_topology_mgr::mst_primary to NULL. This could lead to a NULL deref/use-after-free of mst_primary in drm_dp_mst_handle_up_req(). Avoid the above by holding a reference for mst_primary in drm_dp_mst_handle_up_req() while it's used. v2: Fix kfreeing the request if getting an mst_primary reference fails.

7.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/9735d40f5fde9970aa46e828ecc85c32571d58a2 Patch
https://git.kernel.org/stable/c/ce55818b2d3a999f886af91679589e4644ff1dc8 Patch
https://git.kernel.org/stable/c/e54b00086f7473dbda1a7d6fc47720ced157c6a8 Patch
https://git.kernel.org/stable/c/f61b2e5e7821f868d6afc22382a66a30ee780ba0 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:*
History

03 Feb 2025, 14:53

Type Values Removed Values Added
CWE CWE-476
CWE-416
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/dp_mst: garantizar que el puntero mst_primary sea válido en drm_dp_mst_handle_up_req() Al recibir un mensaje de solicitud de activación de MST de un hilo en drm_dp_mst_handle_up_req(), la topología de MST podría eliminarse de otro hilo mediante drm_dp_mst_topology_mgr_set_mst(false), liberando mst_primary y estableciendo drm_dp_mst_topology_mgr::mst_primary en NULL. Esto podría conducir a una desreferencia/use after free de NULL de mst_primary en drm_dp_mst_handle_up_req(). Evite lo anterior manteniendo una referencia para mst_primary en drm_dp_mst_handle_up_req() mientras se usa. v2: Se soluciona el problema de liberar la solicitud si falla la obtención de una referencia mst_primary.
References () https://git.kernel.org/stable/c/9735d40f5fde9970aa46e828ecc85c32571d58a2 - () https://git.kernel.org/stable/c/9735d40f5fde9970aa46e828ecc85c32571d58a2 - Patch
References () https://git.kernel.org/stable/c/ce55818b2d3a999f886af91679589e4644ff1dc8 - () https://git.kernel.org/stable/c/ce55818b2d3a999f886af91679589e4644ff1dc8 - Patch
References () https://git.kernel.org/stable/c/e54b00086f7473dbda1a7d6fc47720ced157c6a8 - () https://git.kernel.org/stable/c/e54b00086f7473dbda1a7d6fc47720ced157c6a8 - Patch
References () https://git.kernel.org/stable/c/f61b2e5e7821f868d6afc22382a66a30ee780ba0 - () https://git.kernel.org/stable/c/f61b2e5e7821f868d6afc22382a66a30ee780ba0 - Patch
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.8
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:*
First Time Linux
Linux linux Kernel

11 Jan 2025, 13:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-01-11 13:15

Updated : 2025-02-03 14:53

NVD link : CVE-2024-57798

Mitre link : CVE-2024-57798

CVE.ORG link : CVE-2024-57798

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-416

Use After Free

CWE-476

NULL Pointer Dereference