SB2026102395 - Missing Release of Resource after Effective Lifetime in Linux kernel btrfs

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2026102395

SB2026102395 - Missing Release of Resource after Effective Lifetime in Linux kernel btrfs

Published: October 23, 2026

Security Bulletin ID SB2026102395
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Partial DoS

Breakdown by Severity

Low 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-2026-99067)

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

CVSSv4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]


The vulnerability allows a local user to potentially exhaust kernel resources and cause a denial of service.

The vulnerability exists due to missing release of a filesystem root reference in the Linux kernel Btrfs scrub_print_warning_inode() function when inode path resolution fails while printing scrub warnings. A local user can trigger repeated failures in this error path to accumulate unreleased root references, potentially exhausting kernel resources and causing a denial of service.


Remediation

Install update from vendor's website.

References