SB2025111002 - Red Hat Enterprise Linux 8 update for kernel-rt

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Main Vulnerability Database SB2025111002

SB2025111002 - Red Hat Enterprise Linux 8 update for kernel-rt

Published: November 10, 2025

Security Bulletin ID SB2025111002
Severity
Low
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) Input validation error (CVE-ID: CVE-2025-40300)

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

The vulnerability exists due to improper input validation within the vcpu_enter_guest() function in arch/x86/kvm/x86.c. A local user can perform a denial of service (DoS) attack.


2) Use-after-free (CVE-ID: CVE-2023-53178)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the zswap_writeback_entry() function in mm/zswap.c. A local user can escalate privileges on the system.


3) Use-after-free (CVE-ID: CVE-2022-50367)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the inode_init_always() function in fs/inode.c. A local user can escalate privileges on the system.


Remediation

Install update from vendor's website.

References