CVE-2024-49901

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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

I

n the Linux kernel, the following vulnerability has been resolved: drm/msm/adreno: Assign msm_gpu->pdev earlier to avoid nullptrs There are some cases, such as the one uncovered by Commit 46d4efcccc68 ("drm/msm/a6xx: Avoid a nullptr dereference when speedbin setting fails") where msm_gpu_cleanup() : platform_set_drvdata(gpu->pdev, NULL); is called on gpu->pdev == NULL, as the GPU device has not been fully initialized yet. Turns out that there's more than just the aforementioned path that causes this to happen (e.g. the case when there's speedbin data in the catalog, but opp-supported-hw is missing in DT). Assigning msm_gpu->pdev earlier seems like the least painful solution to this, therefore do so. Patchwork: https://patchwork.freedesktop.org/patch/602742/

References
Link Resource
https://git.kernel.org/stable/c/16007768551d5bfe53426645401435ca8d2ef54f Patch
https://git.kernel.org/stable/c/9288a9676c529ad9c856096db68fad812499bc4a Patch
https://git.kernel.org/stable/c/9773737375b20070ea935203fd66cb9fa17c5acb Patch
https://git.kernel.org/stable/c/e8ac2060597a5768e4699bb61d604b4c09927b85 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:*:*:*:*:*:*:*:*
History

25 Oct 2024, 14:05

Type Values Removed Values Added
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
First Time Linux
Linux linux Kernel
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CWE CWE-476
References () https://git.kernel.org/stable/c/16007768551d5bfe53426645401435ca8d2ef54f - () https://git.kernel.org/stable/c/16007768551d5bfe53426645401435ca8d2ef54f - Patch
References () https://git.kernel.org/stable/c/9288a9676c529ad9c856096db68fad812499bc4a - () https://git.kernel.org/stable/c/9288a9676c529ad9c856096db68fad812499bc4a - Patch
References () https://git.kernel.org/stable/c/9773737375b20070ea935203fd66cb9fa17c5acb - () https://git.kernel.org/stable/c/9773737375b20070ea935203fd66cb9fa17c5acb - Patch
References () https://git.kernel.org/stable/c/e8ac2060597a5768e4699bb61d604b4c09927b85 - () https://git.kernel.org/stable/c/e8ac2060597a5768e4699bb61d604b4c09927b85 - Patch

23 Oct 2024, 15:13

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/msm/adreno: Asignar msm_gpu->pdev antes para evitar nullptrs Hay algunos casos, como el descubierto por Commit 46d4efcccc68 ("drm/msm/a6xx: Evitar una desreferencia nullptr cuando fallo la configuración de speedbin") donde msm_gpu_cleanup() : platform_set_drvdata(gpu->pdev, NULL); se llama en gpu->pdev == NULL, ya que el dispositivo GPU aún no se ha inicializado por completo. Resulta que hay más que solo la ruta mencionada anteriormente que hace que esto suceda (por ejemplo, el caso cuando hay datos de speedbin en el catálogo, pero opp-supported-hw falta en DT). Asignar msm_gpu->pdev antes parece ser la solución menos dolorosa para esto, así que hazlo. Parche: https://patchwork.freedesktop.org/patch/602742/

21 Oct 2024, 18:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-10-21 18:15

Updated : 2024-10-25 14:05

NVD link : CVE-2024-49901

Mitre link : CVE-2024-49901

CVE.ORG link : CVE-2024-49901

JSON object : View

Products Affected

linux

CWE
CWE-476

NULL Pointer Dereference