RHSA-2026:2664 - Security Advisory

Topic

An update for kernel is now available for Red Hat Enterprise Linux 8.2 Advanced Update Support.

Red Hat Product Security has rated this update as having a security impact of Moderate. 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: cifs: fix oops during encryption (CVE-2022-50341)
• kernel: RDMA/rxe: Fix incomplete state save in rxe_requester (CVE-2023-53539)
• kernel: net/mlx5e: Check for NOT_READY flag state after locking (CVE-2023-53581)
• kernel: ASoC: Intel: bytcr_rt5640: Fix invalid quirk input mapping (CVE-2025-40154)
• kernel: Linux kernel: Out-of-bounds write in fbdev can lead to privilege escalation, information disclosure, or denial of service. (CVE-2025-40304)
• kernel: Linux kernel: Information disclosure and denial of service via out-of-bounds read in font glyph handling (CVE-2025-40322)
• kernel: ext4: fix use-after-free in ext4_orphan_cleanup (CVE-2022-50673)
• kernel: drm/i915: Fix NULL ptr deref by checking new_crtc_state (CVE-2023-53833)
• kernel: net: atlantic: fix fragment overflow handling in RX path (CVE-2025-68301)
• kernel: NFSv4/pNFS: Clear NFS_INO_LAYOUTCOMMIT in pnfs_mark_layout_stateid_invalid (CVE-2025-68349)

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 Server - AUS 8.2 x86_64

Fixes

• BZ - 2395879 - CVE-2022-50341 kernel: cifs: fix oops during encryption
• BZ - 2401510 - CVE-2023-53539 kernel: RDMA/rxe: Fix incomplete state save in rxe_requester
• BZ - 2401545 - CVE-2023-53581 kernel: net/mlx5e: Check for NOT_READY flag state after locking
• BZ - 2414494 - CVE-2025-40154 kernel: ASoC: Intel: bytcr_rt5640: Fix invalid quirk input mapping
• BZ - 2419870 - CVE-2025-40304 kernel: Linux kernel: Out-of-bounds write in fbdev can lead to privilege escalation, information disclosure, or denial of service.
• BZ - 2419902 - CVE-2025-40322 kernel: Linux kernel: Information disclosure and denial of service via out-of-bounds read in font glyph handling
• BZ - 2420347 - CVE-2022-50673 kernel: ext4: fix use-after-free in ext4_orphan_cleanup
• BZ - 2420366 - CVE-2023-53833 kernel: drm/i915: Fix NULL ptr deref by checking new_crtc_state
• BZ - 2422836 - CVE-2025-68301 kernel: net: atlantic: fix fragment overflow handling in RX path
• BZ - 2424880 - CVE-2025-68349 kernel: NFSv4/pNFS: Clear NFS_INO_LAYOUTCOMMIT in pnfs_mark_layout_stateid_invalid

CVEs

• CVE-2022-50341
• CVE-2022-50673
• CVE-2023-53539
• CVE-2023-53581
• CVE-2023-53833
• CVE-2025-40154
• CVE-2025-40304
• CVE-2025-40322
• CVE-2025-68301
• CVE-2025-68349

References

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