CVE-2026-31543

In the Linux kernel, the following vulnerability has been resolved: crash_dump: don't log dm-crypt key bytes in read_key_from_user_keying When debug logging is enabled, read_key_from_user_keying() logs the first 8 bytes of the key payload and partially exposes the dm-crypt key. Stop logging any key bytes.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

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/36f46b0e36892eba08978eef7502ff3c94ddba77	Patch
https://git.kernel.org/stable/c/4897bd307ba8757c31a3325ba6730961be606016	Patch
https://git.kernel.org/stable/c/ed8d91f469845d62d44c565a55d2ab1767969357	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:7.0:rc1::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc2::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc3::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc4::::::

History

11 Nov 2026, 23:10

Type	Values Removed	Values Added
Summary		(es) En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta: crash_dump: no registrar bytes de clave dm-crypt en read_key_from_user_keying Cuando el registro de depuración está habilitado, read_key_from_user_keying() registra los primeros 8 bytes de la carga útil de la clave y expone parcialmente la clave dm-crypt. Dejar de registrar cualquier byte de clave.

Information

Published : 2026-04-24 15:16

Updated : 2026-11-11 23:10

NVD link : CVE-2026-31543

Mitre link : CVE-2026-31543

CVE.ORG link : CVE-2026-31543

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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