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OpenAdvisories
Critical RHSA-2026:62522 2 CVEs

Red Hat Security Advisory: kernel-rt security update

Published Sep 3, 2026 · Updated Oct 14, 2026

Ecosystem: Red Hat

Fixed packages 32

ReleasePackageFixed in
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt 0:5.14.0-284.190.1.rt14.475.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-core 0:5.14.0-284.190.1.rt14.475.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debug 0:5.14.0-284.190.1.rt14.475.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debug-core 0:5.14.0-284.190.1.rt14.475.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debug-debuginfo 0:5.14.0-284.190.1.rt14.475.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debug-devel 0:5.14.0-284.190.1.rt14.475.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debug-kvm 0:5.14.0-284.190.1.rt14.475.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debug-modules 0:5.14.0-284.190.1.rt14.475.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debug-modules-core 0:5.14.0-284.190.1.rt14.475.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debug-modules-extra 0:5.14.0-284.190.1.rt14.475.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debuginfo 0:5.14.0-284.190.1.rt14.475.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debuginfo-common-x86_64 0:5.14.0-284.190.1.rt14.475.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-devel 0:5.14.0-284.190.1.rt14.475.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-kvm 0:5.14.0-284.190.1.rt14.475.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-modules 0:5.14.0-284.190.1.rt14.475.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-modules-core 0:5.14.0-284.190.1.rt14.475.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-modules-extra 0:5.14.0-284.190.1.rt14.475.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt 0:5.14.0-284.190.1.rt14.475.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-core 0:5.14.0-284.190.1.rt14.475.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debug 0:5.14.0-284.190.1.rt14.475.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debug-core 0:5.14.0-284.190.1.rt14.475.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debug-debuginfo 0:5.14.0-284.190.1.rt14.475.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debug-devel 0:5.14.0-284.190.1.rt14.475.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debug-modules 0:5.14.0-284.190.1.rt14.475.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debug-modules-core 0:5.14.0-284.190.1.rt14.475.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debug-modules-extra 0:5.14.0-284.190.1.rt14.475.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debuginfo 0:5.14.0-284.190.1.rt14.475.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debuginfo-common-x86_64 0:5.14.0-284.190.1.rt14.475.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-devel 0:5.14.0-284.190.1.rt14.475.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-modules 0:5.14.0-284.190.1.rt14.475.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-modules-core 0:5.14.0-284.190.1.rt14.475.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-modules-extra 0:5.14.0-284.190.1.rt14.475.el9_2

Vulnerabilities 2

  • Critical 9.8
    CVE-2026-74480

    net: bridge: stop fast-leave after deleting a port group

    In the Linux kernel, the following vulnerability has been resolved: net: bridge: stop fast-leave after deleting a port group br_multicast_leave_group() iterates mp->ports with pp = &p->next in its fast-leave path. After br_multicast_del_pg() removes p, contin…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2026-64002

    ipv4: free net->ipv4.sysctl_local_reserved_ports after unregister_net_sysctl_table()

    In the Linux kernel, the following vulnerability has been resolved: ipv4: free net->ipv4.sysctl_local_reserved_ports after unregister_net_sysctl_table() ipv4_sysctl_exit_net() is currently freeing net->ipv4.sysctl_local_reserved_ports too soon. Only after unr…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu

References

  • article
    https://access.redhat.com/security/updates/classification/#important
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2502363
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2517046
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_62522.json
  • report
    https://access.redhat.com/security/cve/CVE-2026-64002
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-64002
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-64002
  • article
    https://lore.kernel.org/linux-cve-announce/2026071907-CVE-2026-64002-b8fe@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2026-74480
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-74480
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-74480
  • article
    https://lore.kernel.org/linux-cve-announce/2026081536-CVE-2026-74480-e620@gregkh/T