CVE-2026-31485

medium Red Hat
CVSS v3 Base Score
7.0
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Characteristics
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Published: April 22, 2026 (22 days ago)
Last Modified: April 22, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in the `spi-fsl-lpspi` driver within the Linux kernel. This vulnerability, identified as a Use-After-Free (UAF) issue, stems from a teardown order problem during the unregistration of the Serial Peripheral Interface (SPI) controller. When a running SPI transfer attempts to access deallocated memory during the synchronous teardown of Direct Memory Access (DMA) channels, it can lead to a NULL pointer dereference. This ultimately causes the system to crash, resulting in a Denial of Service (DoS).

CWE

CWE-825

Affected Products

Red Hat Enterprise Linux 10Red Hat Enterprise Linux 6Red Hat Enterprise Linux 7Red Hat Enterprise Linux 8Red Hat Enterprise Linux 9

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov 🔗 lore.kernel.org