SB2026032513 - Red Hat Enterprise Linux 9 update for kernel



SB2026032513 - Red Hat Enterprise Linux 9 update for kernel

Published: March 25, 2026

Security Bulletin ID SB2026032513
Severity
Low
Patch available
YES
Number of vulnerabilities 3
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 3 secuirty vulnerabilities.


1) Out-of-bounds read (CVE-ID: CVE-2022-49985)

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 record_func_key() function in kernel/bpf/verifier.c. A local user can perform a denial of service (DoS) attack.


2) NULL pointer dereference (CVE-ID: CVE-2025-40240)

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

The vulnerability exists due to NULL pointer dereference within the sctp_inq_pop() function in net/sctp/inqueue.c. A local user can perform a denial of service (DoS) attack.


3) 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.


Remediation

Install update from vendor's website.