SB20261007145 - Missing Release of Resource after Effective Lifetime in Linux kernel memstick core driver

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB20261007145

SB20261007145 - Missing Release of Resource after Effective Lifetime in Linux kernel memstick core driver

Published: October 7, 2026

Security Bulletin ID SB20261007145
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Physical access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Missing Release of Resource after Effective Lifetime (CVE-ID: CVE-2026-98227)

CWE-ID: CWE-772 - Missing Release of Resource after Effective Lifetime

CVSSv4: 5.1 [CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows an attacker with physical access to cause a denial of service.

The vulnerability exists due to failure to release allocated workqueue resources in the Linux kernel Memory Stick block driver when removing a memory card. An attacker with physical access can repeatedly insert and remove a memory card to cause a denial of service.

Each insertion and removal cycle leaks the per-card workqueue and its worker thread, progressively exhausting kernel memory.


Remediation

Install update from vendor's website.

References