RHSA-2025:22006 - Security Advisory

Topic

An update for kernel is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions, and Red Hat Enterprise Linux 8.6 Telecommunications Update Service.

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: ethtool: check device is present when getting link settings (CVE-2024-46679)
• kernel: ALSA: usb-audio: Validate UAC3 power domain descriptors, too (CVE-2025-38729)
• kernel: sctp: linearize cloned gso packets in sctp_rcv (CVE-2025-38718)
• kernel: NFS: Fix a race when updating an existing write (CVE-2025-39697)
• kernel: ALSA: usb-audio: Validate UAC3 cluster segment descriptors (CVE-2025-39757)
• kernel: x86/vmscape: Add conditional IBPB mitigation (CVE-2025-40300)
• kernel: wifi: mac80211: check S1G action frame size (CVE-2023-53257)
• kernel: mt76: mt7921: fix kernel panic by accessing unallocated eeprom.data (CVE-2023-53232)
• kernel: Bluetooth: L2CAP: fix "bad unlock balance" in l2cap_disconnect_rsp (CVE-2023-53297)
• kernel: cifs: fix oops during encryption (CVE-2022-50341)
• kernel: ip6mr: Fix skb_under_panic in ip6mr_cache_report() (CVE-2023-53365)
• kernel: net: sched: sfb: fix null pointer access issue when sfb_init() fails (CVE-2022-50356)
• kernel: skbuff: skb_segment, Call zero copy functions before using skbuff frags (CVE-2023-53354)
• kernel: RDMA/mlx5: Fix mlx5_ib_get_hw_stats when used for device (CVE-2023-53393)
• kernel: Bluetooth: L2CAP: Fix user-after-free (CVE-2022-50386)
• kernel: ext4: fix undefined behavior in bit shift for ext4_check_flag_values (CVE-2022-50403)
• kernel: NFSD: Protect against send buffer overflow in NFSv2 READ (CVE-2022-50410)
• kernel: mm/memory-failure: fix VM_BUG_ON_PAGE(PagePoisoned(page)) when unpoison memory (CVE-2025-39883)

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 8.6 x86_64
• Red Hat Enterprise Linux Server - AUS 8.6 x86_64
• Red Hat Enterprise Linux Server - TUS 8.6 x86_64
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.6 ppc64le
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.6 x86_64

Fixes

• BZ - 2312067 - CVE-2024-46679 kernel: ethtool: check device is present when getting link settings
• BZ - 2393164 - CVE-2025-38729 kernel: ALSA: usb-audio: Validate UAC3 power domain descriptors, too
• BZ - 2393166 - CVE-2025-38718 kernel: sctp: linearize cloned gso packets in sctp_rcv
• BZ - 2393481 - CVE-2025-39697 kernel: NFS: Fix a race when updating an existing write
• BZ - 2394615 - CVE-2025-39757 kernel: ALSA: usb-audio: Validate UAC3 cluster segment descriptors
• BZ - 2394627 - CVE-2025-40300 kernel: x86/vmscape: Add conditional IBPB mitigation
• BZ - 2395253 - CVE-2023-53257 kernel: wifi: mac80211: check S1G action frame size
• BZ - 2395322 - CVE-2023-53232 kernel: mt76: mt7921: fix kernel panic by accessing unallocated eeprom.data
• BZ - 2395681 - CVE-2023-53297 kernel: Bluetooth: L2CAP: fix "bad unlock balance" in l2cap_disconnect_rsp
• BZ - 2395879 - CVE-2022-50341 kernel: cifs: fix oops during encryption
• BZ - 2396130 - CVE-2023-53365 kernel: ip6mr: Fix skb_under_panic in ip6mr_cache_report()
• BZ - 2396152 - CVE-2022-50356 kernel: net: sched: sfb: fix null pointer access issue when sfb_init() fails
• BZ - 2396158 - CVE-2023-53354 kernel: skbuff: skb_segment, Call zero copy functions before using skbuff frags
• BZ - 2396376 - CVE-2023-53393 kernel: RDMA/mlx5: Fix mlx5_ib_get_hw_stats when used for device
• BZ - 2396431 - CVE-2022-50386 kernel: Bluetooth: L2CAP: Fix user-after-free
• BZ - 2396494 - CVE-2022-50403 kernel: ext4: fix undefined behavior in bit shift for ext4_check_flag_values
• BZ - 2396536 - CVE-2022-50410 kernel: NFSD: Protect against send buffer overflow in NFSv2 READ
• BZ - 2397553 - CVE-2025-39883 kernel: mm/memory-failure: fix VM_BUG_ON_PAGE(PagePoisoned(page)) when unpoison memory

CVEs

• CVE-2022-50341
• CVE-2022-50356
• CVE-2022-50386
• CVE-2022-50403
• CVE-2022-50410
• CVE-2023-53232
• CVE-2023-53257
• CVE-2023-53297
• CVE-2023-53354
• CVE-2023-53365
• CVE-2023-53393
• CVE-2024-46679
• CVE-2025-38718
• CVE-2025-38729
• CVE-2025-39697
• CVE-2025-39757
• CVE-2025-39883
• CVE-2025-40300

References

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