RHSA-2026:35894HighCVSS 7.8

Red Hat Security Advisory: kernel security update

Published
July 6, 2026
Last Modified
August 17, 2026

🔗 CVE IDs covered (6)

CVE-2026-43198 →CVE-2026-43279 →CVE-2026-45984 →CVE-2026-46181 →CVE-2026-31408 →CVE-2026-31669 →

📋 Description

CVE-2026-31408 — kernel: Bluetooth: SCO: Fix use-after-free in sco_recv_frame() due to missing sock_hold CVE-2026-31669 — kernel: mptcp: fix slab-use-after-free in __inet_lookup_established CVE-2026-43198 — kernel: tcp: fix potential race in tcp_v6_syn_recv_sock() CVE-2026-43279 — kernel: ALSA: usb-audio: Add sanity check for OOB writes at silencing CVE-2026-45984 — kernel: gfs2: Fix use-after-free in iomap inline data write path CVE-2026-46181 — kernel: RDMA/mlx4: Fix mis-use of RCU in mlx4_srq_event()

🎯 Affected products52

  • Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • bpftool-0:4.18.0-372.199.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • bpftool-0:4.18.0-372.199.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • bpftool-debuginfo-0:4.18.0-372.199.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • bpftool-debuginfo-0:4.18.0-372.199.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-0:4.18.0-372.199.1.el8_6.src as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-0:4.18.0-372.199.1.el8_6.src as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-0:4.18.0-372.199.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-0:4.18.0-372.199.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-abi-stablelists-0:4.18.0-372.199.1.el8_6.noarch as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-abi-stablelists-0:4.18.0-372.199.1.el8_6.noarch as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-core-0:4.18.0-372.199.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-core-0:4.18.0-372.199.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-debug-0:4.18.0-372.199.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-debug-0:4.18.0-372.199.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-debug-core-0:4.18.0-372.199.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-debug-core-0:4.18.0-372.199.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-debug-debuginfo-0:4.18.0-372.199.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-debug-debuginfo-0:4.18.0-372.199.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-debug-devel-0:4.18.0-372.199.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-debug-devel-0:4.18.0-372.199.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-debug-modules-0:4.18.0-372.199.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-debug-modules-0:4.18.0-372.199.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-debug-modules-extra-0:4.18.0-372.199.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-debug-modules-extra-0:4.18.0-372.199.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-debuginfo-0:4.18.0-372.199.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-debuginfo-0:4.18.0-372.199.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • kernel-debuginfo-common-x86_64-0:4.18.0-372.199.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • kernel-debuginfo-common-x86_64-0:4.18.0-372.199.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)
  • +22 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.

🔗 References (9)