CVE-2026-31651

MEDIUM

In the Linux kernel, the following vulnerability has been resolved: mmc: vub300: fix NULL-deref on disconnect Make sure to deregister the controller before dropping the reference to the driver data on disconnect to avoid NULL-pointer dereferences or use-after-free.

CVSS v3.1 Score

5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Published: 4/24/2026Modified: 7/14/2026

Related Intelligence (1)

CRITICALAi

Siemens SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP

<p><a href="https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-209-04.json"><strong>View CSAF</strong></a></p> <h2>Summary</h2> <p><strong>Multiple vulnerabilities have been identified in the additional GNU/Linux subsystem of the firmware version V3.1.6 for the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP (incl. SIPLUS variant). Siemens is preparing fix versions and recommend

CVE-2021-41617CVE-2023-28531
CISA Advisories

References (10)

https://git.kernel.org/stable/c/517b58e1d067115f80d198feee10192da4c424d0Patchhttps://git.kernel.org/stable/c/53f2642d77ab5f1f303388bff5500363c6cf962cPatchhttps://git.kernel.org/stable/c/6446516e626ce7c44bdadbcbb3d7677a2c52ce93Patchhttps://git.kernel.org/stable/c/6468cab1173f44f7a4b7a05ce8abfdfd1ce1557aPatchhttps://git.kernel.org/stable/c/8d09e75759cb2afc0732acfb5a14a93c03805a61Patchhttps://git.kernel.org/stable/c/ba3b9429de94958dc0060d9816a915dd75c34919Patchhttps://git.kernel.org/stable/c/c83a282615d8f7ba28cebddd54600b419d562d82Patchhttps://git.kernel.org/stable/c/dff34ef879c5e73298443956a8b391311ba78d57Patchhttps://cert-portal.siemens.com/productcert/html/ssa-019113.htmlhttps://cert-portal.siemens.com/productcert/html/ssa-082556.html