RHSA-2026:1445 - Security Advisory

Topic

An update for kernel is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: smb: client: Fix use-after-free in cifs_fill_dirent (CVE-2025-38051)
• kernel: e1000e: fix heap overflow in e1000_set_eeprom (CVE-2025-39898)
• kernel: RDMA/rxe: Fix incomplete state save in rxe_requester (CVE-2023-53539)
• kernel: drm/i915: mark requests for GuC virtual engines to avoid use-after-free (CVE-2023-53552)
• kernel: net/mlx5e: Check for NOT_READY flag state after locking (CVE-2023-53581)
• kernel: i40e: fix idx validation in config queues msg (CVE-2025-39971)
• kernel: media: rc: fix races with imon_disconnect() (CVE-2025-39993)
• kernel: Linux kernel: vsock vulnerability may lead to memory corruption (CVE-2025-40248)
• kernel: drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE (CVE-2025-40277)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

The system must be rebooted for this update to take effect.

Affected Products

• Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension 8.8 x86_64
• Red Hat Enterprise Linux Server - TUS 8.8 x86_64
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.8 ppc64le
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.8 x86_64

Fixes

• BZ - 2373329 - CVE-2025-38051 kernel: smb: client: Fix use-after-free in cifs_fill_dirent
• BZ - 2400598 - CVE-2025-39898 kernel: e1000e: fix heap overflow in e1000_set_eeprom
• BZ - 2401510 - CVE-2023-53539 kernel: RDMA/rxe: Fix incomplete state save in rxe_requester
• BZ - 2401514 - CVE-2023-53552 kernel: drm/i915: mark requests for GuC virtual engines to avoid use-after-free
• BZ - 2401545 - CVE-2023-53581 kernel: net/mlx5e: Check for NOT_READY flag state after locking
• BZ - 2404108 - CVE-2025-39971 kernel: i40e: fix idx validation in config queues msg
• BZ - 2404121 - CVE-2025-39993 kernel: media: rc: fix races with imon_disconnect()
• BZ - 2418872 - CVE-2025-40248 kernel: Linux kernel: vsock vulnerability may lead to memory corruption
• BZ - 2419954 - CVE-2025-40277 kernel: drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE

CVEs

• CVE-2023-53539
• CVE-2023-53552
• CVE-2023-53581
• CVE-2025-38051
• CVE-2025-39898
• CVE-2025-39971
• CVE-2025-39973
• CVE-2025-39993
• CVE-2025-40248
• CVE-2025-40277

References

• https://access.redhat.com/security/updates/classification/#important