RHSA-2025:21084 - 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: ALSA: usb-audio: ALSA USB Audio Out-of-Bounds Bug (CVE-2022-48701)
• kernel: ASoC: SOF: Intel: hda: Fix potential buffer overflow by snprintf() (CVE-2022-50050)
• kernel: wifi: brcmfmac: slab-out-of-bounds read in brcmf_get_assoc_ies() (CVE-2023-53213)
• kernel: wifi: ath9k: don't allow to overwrite ENDPOINT0 attributes (CVE-2023-53185)
• kernel: mm: fix zswap writeback race condition (CVE-2023-53178)
• kernel: fs: fix UAF/GPF bug in nilfs_mdt_destroy (CVE-2022-50367)
• kernel: crypto: seqiv - Handle EBUSY correctly (CVE-2023-53373)
• kernel: Bluetooth: Fix potential use-after-free when clear keys (CVE-2023-53386)
• kernel: wifi: brcmfmac: fix use-after-free bug in brcmf_netdev_start_xmit() (CVE-2022-50408)
• kernel: iomap: iomap: fix memory corruption when recording errors during writeback (CVE-2022-50406)
• kernel: wifi: cfg80211: fix use-after-free in cmp_bss() (CVE-2025-39864)
• kernel: scsi: lpfc: Fix buffer free/clear order in deferred receive path (CVE-2025-39841)

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 - 2278950 - CVE-2022-48701 kernel: ALSA: usb-audio: ALSA USB Audio Out-of-Bounds Bug
• BZ - 2373423 - CVE-2022-50050 kernel: ASoC: SOF: Intel: hda: Fix potential buffer overflow by snprintf()
• BZ - 2395267 - CVE-2023-53213 kernel: wifi: brcmfmac: slab-out-of-bounds read in brcmf_get_assoc_ies()
• BZ - 2395297 - CVE-2023-53185 kernel: wifi: ath9k: don't allow to overwrite ENDPOINT0 attributes
• BZ - 2395358 - CVE-2023-53178 kernel: mm: fix zswap writeback race condition
• BZ - 2396114 - CVE-2022-50367 kernel: fs: fix UAF/GPF bug in nilfs_mdt_destroy
• BZ - 2396379 - CVE-2023-53373 kernel: crypto: seqiv - Handle EBUSY correctly
• BZ - 2396419 - CVE-2023-53386 kernel: Bluetooth: Fix potential use-after-free when clear keys
• BZ - 2396506 - CVE-2022-50408 kernel: wifi: brcmfmac: fix use-after-free bug in brcmf_netdev_start_xmit()
• BZ - 2396538 - CVE-2022-50406 kernel: iomap: iomap: fix memory corruption when recording errors during writeback
• BZ - 2396934 - CVE-2025-39864 kernel: wifi: cfg80211: fix use-after-free in cmp_bss()
• BZ - 2396944 - CVE-2025-39841 kernel: scsi: lpfc: Fix buffer free/clear order in deferred receive path

CVEs

• CVE-2022-48701
• CVE-2022-50050
• CVE-2022-50367
• CVE-2022-50406
• CVE-2022-50408
• CVE-2023-53178
• CVE-2023-53185
• CVE-2023-53213
• CVE-2023-53373
• CVE-2023-53386
• CVE-2025-39841
• CVE-2025-39864

References

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