PT-2026-35003 · Linux · Linux Kernel

Published 2026-04-24 · Updated 2026-05-03 · CVE-2026-31651

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A NULL-pointer dereference or use-after-free issue exists in the mmc: vub300 component. This occurs during disconnect if the controller is not deregistered before the reference to the driver data is dropped.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2026-31651

ECHO-6117-9153-F091

Affected Products

Linux Kernel

References · 18

• https://git.kernel.org/stable/c/c83a282615d8f7ba28cebddd54600b419d562d82 · Patch
• https://git.kernel.org/stable/c/6468cab1173f44f7a4b7a05ce8abfdfd1ce1557a · Patch
• https://cve.org/CVERecord?id=CVE-2026-31651 · Security Note
• https://git.kernel.org/stable/c/8d09e75759cb2afc0732acfb5a14a93c03805a61 · Patch
• https://git.kernel.org/stable/c/517b58e1d067115f80d198feee10192da4c424d0 · Patch
• https://git.kernel.org/stable/c/ba3b9429de94958dc0060d9816a915dd75c34919 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-31651 · Vendor Advisory
• https://git.kernel.org/stable/c/6446516e626ce7c44bdadbcbb3d7677a2c52ce93 · Patch
• https://ubuntu.com/security/CVE-2026-31651 · Vendor Advisory
• https://git.kernel.org/stable/c/dff34ef879c5e73298443956a8b391311ba78d57 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-31651 · Vendor Advisory
• https://git.kernel.org/stable/c/53f2642d77ab5f1f303388bff5500363c6cf962c · Patch
• https://security-tracker.debian.org/tracker/CVE-2026-31651 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-31651 · Security Note
• https://osv.dev/vulnerability/BELL-CVE-2026-31651 · Vendor Advisory