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.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

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

No history.

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

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