Issued:
2025-11-12
Updated:
2025-11-12

RHSA-2025:21136 - Moderate: kernel-rt security update

Synopsis

Moderate: kernel-rt security update

Type/Severity

Security Advisory Moderate

Topic

An update for kernel-rt is now available for Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions.

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-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

  • kernel: ALSA: usb-audio: ALSA USB Audio Out-of-Bounds Bug (CVE-2022-48701)

  • kernel: ipv6: mcast: Delay put pmc->idev in mld_del_delrec() (CVE-2025-38550)

  • 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: ipv6: sr: Fix MAC comparison to be constant-time (CVE-2025-39702)

  • kernel: NFS: Fix filehandle bounds checking in nfs_fh_to_dentry() (CVE-2025-39730)

  • kernel: wifi: mac80211: check S1G action frame size (CVE-2023-53257)

  • 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: mt76: mt7921: fix kernel panic by accessing unallocated eeprom.data (CVE-2023-53232)

  • kernel: mm: fix zswap writeback race condition (CVE-2023-53178)

  • kernel: wifi: mwifiex: Fix OOB and integer underflow when rx packets (CVE-2023-53226)

  • kernel: Bluetooth: L2CAP: Fix use-after-free (CVE-2023-53305)

  • kernel: pstore/ram: Check start of empty przs during init (CVE-2023-53331)

  • kernel: fs: fix UAF/GPF bug in nilfs_mdt_destroy (CVE-2022-50367)

  • 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: mm: kmem: fix a NULL pointer dereference in obj_stock_flush_required() (CVE-2023-53401)

  • kernel: Bluetooth: Fix potential use-after-free when clear keys (CVE-2023-53386)

  • kernel: Bluetooth: L2CAP: Fix user-after-free (CVE-2022-50386)

  • 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: crypto: xts - Handle EBUSY correctly (CVE-2023-53494)

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

ProductVersionArch
Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions9.0x86_64

Updated Packages

  • kernel-rt-debuginfo-5.14.0-70.153.1.rt21.225.el9_0.x86_64.rpm
  • kernel-rt-devel-5.14.0-70.153.1.rt21.225.el9_0.x86_64.rpm
  • kernel-rt-modules-extra-5.14.0-70.153.1.rt21.225.el9_0.x86_64.rpm
  • kernel-rt-kvm-5.14.0-70.153.1.rt21.225.el9_0.x86_64.rpm
  • kernel-rt-debug-5.14.0-70.153.1.rt21.225.el9_0.x86_64.rpm
  • kernel-rt-debuginfo-common-x86_64-5.14.0-70.153.1.rt21.225.el9_0.x86_64.rpm
  • kernel-rt-5.14.0-70.153.1.rt21.225.el9_0.x86_64.rpm
  • kernel-rt-debug-debuginfo-5.14.0-70.153.1.rt21.225.el9_0.x86_64.rpm
  • kernel-rt-debug-kvm-5.14.0-70.153.1.rt21.225.el9_0.x86_64.rpm
  • kernel-rt-5.14.0-70.153.1.rt21.225.el9_0.src.rpm
  • kernel-rt-modules-5.14.0-70.153.1.rt21.225.el9_0.x86_64.rpm
  • kernel-rt-core-5.14.0-70.153.1.rt21.225.el9_0.x86_64.rpm
  • kernel-rt-debug-core-5.14.0-70.153.1.rt21.225.el9_0.x86_64.rpm
  • kernel-rt-debug-modules-extra-5.14.0-70.153.1.rt21.225.el9_0.x86_64.rpm
  • kernel-rt-debug-devel-5.14.0-70.153.1.rt21.225.el9_0.x86_64.rpm
  • kernel-rt-debug-modules-5.14.0-70.153.1.rt21.225.el9_0.x86_64.rpm

Fixes

CVEs

References

Additional information