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OpenAdvisories
Critical RHSA-2026:62372 1 CVE

Red Hat Security Advisory: kernel security update

Published Sep 2, 2026 · Updated Sep 30, 2026

Ecosystem: Red Hat

Fixed packages 48

ReleasePackageFixed in
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos bpftool 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos bpftool-debuginfo 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos kernel 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos kernel-abi-stablelists 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos kernel-core 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos kernel-debug 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos kernel-debug-core 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos kernel-debug-debuginfo 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos kernel-debug-devel 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos kernel-debug-modules 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos kernel-debug-modules-extra 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos kernel-debuginfo 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos kernel-debuginfo-common-x86_64 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos kernel-devel 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos kernel-doc 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos kernel-modules 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos kernel-modules-extra 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos kernel-tools 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos kernel-tools-debuginfo 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos kernel-tools-libs 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos perf 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos perf-debuginfo 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos python3-perf 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos python3-perf-debuginfo 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos bpftool 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos bpftool-debuginfo 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos kernel 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos kernel-abi-stablelists 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos kernel-core 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos kernel-debug 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos kernel-debug-core 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos kernel-debug-debuginfo 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos kernel-debug-devel 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos kernel-debug-modules 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos kernel-debug-modules-extra 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos kernel-debuginfo 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos kernel-debuginfo-common-x86_64 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos kernel-devel 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos kernel-doc 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos kernel-modules 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos kernel-modules-extra 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos kernel-tools 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos kernel-tools-debuginfo 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos kernel-tools-libs 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos perf 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos perf-debuginfo 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos python3-perf 0:4.18.0-305.204.1.el8_4
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos python3-perf-debuginfo 0:4.18.0-305.204.1.el8_4

Vulnerabilities 1

  • 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

References

  • article
    https://access.redhat.com/security/updates/classification/#important
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2517046
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_62372.json
  • 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