SB2026022503 - Red Hat Enterprise Linux 8 update for kernel

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2026022503

SB2026022503 - Red Hat Enterprise Linux 8 update for kernel

Published: February 25, 2026

Security Bulletin ID SB2026022503
Severity
Low
Patch available
YES
Number of vulnerabilities 8
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 8 secuirty vulnerabilities.


1) Use-after-free (CVE-ID: CVE-2025-38022)

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

The vulnerability exists due to a use-after-free error within the ib_device_notify_register() and ib_register_device() functions in drivers/infiniband/core/device.c. A local user can escalate privileges on the system.


2) Out-of-bounds read (CVE-ID: CVE-2025-38415)

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 squashfs_fill_super() function in fs/squashfs/super.c. A local user can perform a denial of service (DoS) attack.


3) Improper locking (CVE-ID: CVE-2025-38459)

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

The vulnerability exists due to improper locking within the clip_mkip() function in net/atm/clip.c. A local user can perform a denial of service (DoS) attack.


4) Out-of-bounds read (CVE-ID: CVE-2025-39760)

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 usb_parse_ss_endpoint_companion() function in drivers/usb/core/config.c. A local user can perform a denial of service (DoS) attack.


5) Input validation error (CVE-ID: CVE-2025-39933)

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

The vulnerability exists due to improper input validation within the recv_done() function in fs/smb/client/smbdirect.c. A local user can perform a denial of service (DoS) attack.


6) Use-after-free (CVE-ID: CVE-2025-40271)

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

The vulnerability exists due to a use-after-free error within the pde_put(), remove_proc_entry() and remove_proc_subtree() functions in fs/proc/generic.c. A local user can escalate privileges on the system.


7) Use-after-free (CVE-ID: CVE-2023-53821)

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

The vulnerability exists due to a use-after-free error within the vti6_tnl_xmit() function in net/ipv6/ip6_vti.c. A local user can escalate privileges on the system.


8) Use-after-free (CVE-ID: CVE-2026-23074)

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

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


Remediation

Install update from vendor's website.

References