SB2026030204 - Red Hat Enterprise Linux 9 update for kernel

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Main Vulnerability Database SB2026030204

SB2026030204 - Red Hat Enterprise Linux 9 update for kernel

Published: March 2, 2026

Security Bulletin ID SB2026030204
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) Use-after-free (CVE-ID: CVE-2025-40168)

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

The vulnerability exists due to a use-after-free error within the smc_clc_prfx_match6_rcu() function in net/smc/smc_clc.c. A local user can escalate privileges on the system.


2) Resource management error (CVE-ID: CVE-2025-71085)

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

The vulnerability exists due to resource management error within the calipso_skbuff_setattr() function in net/ipv6/calipso.c. A local user can perform a denial of service (DoS) attack.


3) Improper locking (CVE-ID: CVE-2026-23097)

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

The vulnerability exists due to improper locking within the unmap_and_move_huge_page() function in mm/migrate.c. A local user can perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References