SB2025121080 - Red Hat Enterprise Linux 9 update for kernel-rt 

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Main Vulnerability Database SB2025121080

SB2025121080 - Red Hat Enterprise Linux 9 update for kernel-rt

Published: December 10, 2025

Security Bulletin ID SB2025121080
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) Memory leak (CVE-ID: CVE-2023-52610)

The vulnerability allows a local user to perform DoS attack on the target system.

The vulnerability exists due memory leak in net/sched/act_ct.c. A local user can force the kernel to leak memory and perform denial of service attack.


2) Use-after-free (CVE-ID: CVE-2025-39841)

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

The vulnerability exists due to a use-after-free error within the lpfc_nvmet_defer_rcv() function in drivers/scsi/lpfc/lpfc_nvmet.c. A local user can escalate privileges on the system.


3) Improper error handling (CVE-ID: CVE-2025-39883)

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

The vulnerability exists due to improper error handling within the unpoison_memory() function in mm/memory-failure.c. A local user can perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References