SB20260905149 - Improper Validation of Specified Quantity in Input in Linux kernel nilfs2

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB20260905149

SB20260905149 - Improper Validation of Specified Quantity in Input in Linux kernel nilfs2

Published: September 5, 2026

Security Bulletin ID SB20260905149
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper Validation of Specified Quantity in Input (CVE-ID: CVE-2026-80807)

CWE-ID: CWE-1284 - Improper Validation of Specified Quantity in Input

CVSSv4: 0 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a local user to cause list corruption.

The vulnerability exists due to improper range validation in the nilfs2 GC ioctl when processing crafted virtual block descriptors. A local user can submit a crafted GC ioctl request to cause list corruption.

The crafted descriptor can specify an invalid virtual block number or offset that results in a page index of ULONG_MAX.


Remediation

Install update from vendor's website.

References