RHSA-2026:2264MediumCVSS 7.5

Red Hat Security Advisory: kernel security update

Published
February 9, 2026
Last Modified
August 13, 2026

🔗 CVE IDs covered (8)

CVE-2025-38403 →CVE-2025-40135 →CVE-2025-40158 →CVE-2025-40170 →CVE-2025-40269 →CVE-2025-68349 →CVE-2026-22998 →CVE-2022-50673 →

📋 Description

CVE-2022-50673 — kernel: ext4: fix use-after-free in ext4_orphan_cleanup CVE-2025-38403 — kernel: Kernel: Privilege escalation via uninitialized data in vmci transport packet CVE-2025-40135 — kernel: ipv6: use RCU in ip6_xmit() CVE-2025-40158 — kernel: ipv6: use RCU in ip6_output() CVE-2025-40170 — kernel: net: use dst_dev_rcu() in sk_setup_caps() CVE-2025-40269 — kernel: Linux kernel ALSA USB audio driver: Buffer overflow leading to information disclosure and denial of service CVE-2025-68349 — kernel: NFSv4/pNFS: Clear NFS_INO_LAYOUTCOMMIT in pnfs_mark_layout_stateid_invalid CVE-2026-22998 — kernel: nvme-tcp: fix NULL pointer dereferences in nvmet_tcp_build_pdu_iovec

🎯 Affected products122

  • Red Hat Enterprise Linux BaseOS (v. 8)
  • Red Hat Enterprise Linux CRB (v. 8)
  • bpftool-0:4.18.0-553.104.1.el8_10.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • bpftool-0:4.18.0-553.104.1.el8_10.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • bpftool-0:4.18.0-553.104.1.el8_10.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • bpftool-0:4.18.0-553.104.1.el8_10.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • bpftool-debuginfo-0:4.18.0-553.104.1.el8_10.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • bpftool-debuginfo-0:4.18.0-553.104.1.el8_10.aarch64 as a component of Red Hat Enterprise Linux CRB (v. 8)
  • bpftool-debuginfo-0:4.18.0-553.104.1.el8_10.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • bpftool-debuginfo-0:4.18.0-553.104.1.el8_10.ppc64le as a component of Red Hat Enterprise Linux CRB (v. 8)
  • bpftool-debuginfo-0:4.18.0-553.104.1.el8_10.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • bpftool-debuginfo-0:4.18.0-553.104.1.el8_10.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • bpftool-debuginfo-0:4.18.0-553.104.1.el8_10.x86_64 as a component of Red Hat Enterprise Linux CRB (v. 8)
  • kernel-0:4.18.0-553.104.1.el8_10.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kernel-0:4.18.0-553.104.1.el8_10.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kernel-0:4.18.0-553.104.1.el8_10.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kernel-0:4.18.0-553.104.1.el8_10.src as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kernel-0:4.18.0-553.104.1.el8_10.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kernel-abi-stablelists-0:4.18.0-553.104.1.el8_10.noarch as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kernel-core-0:4.18.0-553.104.1.el8_10.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kernel-core-0:4.18.0-553.104.1.el8_10.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kernel-core-0:4.18.0-553.104.1.el8_10.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kernel-core-0:4.18.0-553.104.1.el8_10.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kernel-debug-0:4.18.0-553.104.1.el8_10.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kernel-debug-0:4.18.0-553.104.1.el8_10.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kernel-debug-0:4.18.0-553.104.1.el8_10.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kernel-debug-0:4.18.0-553.104.1.el8_10.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kernel-debug-core-0:4.18.0-553.104.1.el8_10.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kernel-debug-core-0:4.18.0-553.104.1.el8_10.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kernel-debug-core-0:4.18.0-553.104.1.el8_10.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • +92 more not shown

✅ Remediation

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. Workaround: Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability. Workaround: To mitigate this issue, prevent the `snd_usb_audio` kernel module from loading if USB audio functionality is not required. Create a file `/etc/modprobe.d/disable-snd-usb-audio.conf` with the following content: `install snd_usb_audio /bin/true` After creating the file, a system reboot is required for the changes to take effect. This action will disable all USB audio device functionality. Workaround: If NFS service not being used, then disable it to prevent possibility of triggering this bug (and usually it is disabled by default): sudo systemctl stop nfs-server sudo systemctl disable nfs-server Workaround: To mitigate this issue, prevent module nvmet-tcp from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically. By default it is disabled in Red Hat Enterprise Linux and only root user can enable it.

🔗 References (11)