SB2025070435 - Out-of-bounds read in Linux kernel netfs



SB2025070435 - Out-of-bounds read in Linux kernel netfs

Published: July 4, 2025

Security Bulletin ID SB2025070435
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Out-of-bounds read (CVE-ID: CVE-2025-38139)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to an out-of-bounds read error within the netfs_retry_write_stream() function in fs/netfs/write_retry.c. A local user can perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.