Issued:
2025-12-22
Updated:
2025-12-22

RHSA-2025:23960 - 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 7 Extended Lifecycle 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-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: Validate UAC3 power domain descriptors, too (CVE-2025-38729)

  • kernel: ALSA: usb-audio: Validate UAC3 cluster segment descriptors (CVE-2025-39757)

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

  • kernel: Bluetooth: L2CAP: fix "bad unlock balance" in l2cap_disconnect_rsp (CVE-2023-53297)

  • kernel: scsi: qla2xxx: Wait for io return on terminate rport (CVE-2023-53322)

  • 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: 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: iomap: iomap: fix memory corruption when recording errors during writeback (CVE-2022-50406)

  • kernel: tcp: Clear tcp_sk(sk)->fastopen_rsk in tcp_disconnect() (CVE-2025-39955)

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 Real Time for x86_64 - Extended Life Cycle Support7x86_64

Updated Packages

  • kernel-rt-debuginfo-common-x86_64-3.10.0-1160.144.1.rt56.1296.el7.x86_64.rpm
  • kernel-rt-debuginfo-3.10.0-1160.144.1.rt56.1296.el7.x86_64.rpm
  • kernel-rt-debug-3.10.0-1160.144.1.rt56.1296.el7.x86_64.rpm
  • kernel-rt-trace-3.10.0-1160.144.1.rt56.1296.el7.x86_64.rpm
  • kernel-rt-trace-debuginfo-3.10.0-1160.144.1.rt56.1296.el7.x86_64.rpm
  • kernel-rt-trace-devel-3.10.0-1160.144.1.rt56.1296.el7.x86_64.rpm
  • kernel-rt-debug-debuginfo-3.10.0-1160.144.1.rt56.1296.el7.x86_64.rpm
  • kernel-rt-3.10.0-1160.144.1.rt56.1296.el7.x86_64.rpm
  • kernel-rt-3.10.0-1160.144.1.rt56.1296.el7.src.rpm
  • kernel-rt-doc-3.10.0-1160.144.1.rt56.1296.el7.noarch.rpm
  • kernel-rt-devel-3.10.0-1160.144.1.rt56.1296.el7.x86_64.rpm
  • kernel-rt-debug-devel-3.10.0-1160.144.1.rt56.1296.el7.x86_64.rpm

Fixes

CVEs

References

Additional information