CVE-2025-37846

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-37846
In the Linux kernel, the following vulnerability has been resolved: arm64: mops: Do not dereference src reg for a set operation The source register is not used for SET* and reading it can result in a UBSAN out-of-bounds array access error, specifically when the MOPS exception is taken from a SET* sequence with XZR (reg 31) as the source. Architecturally this is the only case where a src/dst/size field in the ESR can be reported as 31. Prior to 2de451a329cf662b the code in do_el0_mops() was benign as the use of pt_regs_read_reg() prevented the out-of-bounds access.

7.1 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/43267d934eacff6c70e15545d804ebbcab8a0bf5 Patch
https://git.kernel.org/stable/c/5f6022a74147675124b781fdc056b291850e7786 Patch
https://git.kernel.org/stable/c/a13bfa4fe0d6949cea14718df2d1fe84c38cd113 Patch
https://git.kernel.org/stable/c/eec737e17e5567e08148550a7f1d94d495b9fb17 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

17 Nov 2025, 12:54

Type Values Removed Values Added
First Time Linux
Linux linux Kernel
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.1
CWE CWE-125
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
References () https://git.kernel.org/stable/c/43267d934eacff6c70e15545d804ebbcab8a0bf5 - () https://git.kernel.org/stable/c/43267d934eacff6c70e15545d804ebbcab8a0bf5 - Patch
References () https://git.kernel.org/stable/c/5f6022a74147675124b781fdc056b291850e7786 - () https://git.kernel.org/stable/c/5f6022a74147675124b781fdc056b291850e7786 - Patch
References () https://git.kernel.org/stable/c/a13bfa4fe0d6949cea14718df2d1fe84c38cd113 - () https://git.kernel.org/stable/c/a13bfa4fe0d6949cea14718df2d1fe84c38cd113 - Patch
References () https://git.kernel.org/stable/c/eec737e17e5567e08148550a7f1d94d495b9fb17 - () https://git.kernel.org/stable/c/eec737e17e5567e08148550a7f1d94d495b9fb17 - Patch

12 May 2025, 17:32

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: arm64: mops: No desreferenciar el registro src para una operación set. El registro fuente no se utiliza para SET* y leerlo puede resultar en un error de acceso a la matriz UBSAN fuera de los límites, específicamente cuando la excepción MOPS se toma de una secuencia SET* con XZR (reg 31) como origen. Arquitectónicamente, este es el único caso donde un campo src/dst/size en el ESR puede reportarse como 31. Antes de 2de451a329cf662b, el código en do_el0_mops() era benigno ya que el uso de pt_regs_read_reg() impedía el acceso fuera de los límites.

09 May 2025, 07:16

Type Values Removed Values Added
New CVE
Information

Published : 2025-05-09 07:16

Updated : 2025-11-17 12:54

NVD link : CVE-2025-37846

Mitre link : CVE-2025-37846

CVE.ORG link : CVE-2025-37846

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-125

Out-of-bounds Read