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OpenAdvisories
Critical RHSA-2026:63538 1 CVE

Red Hat Security Advisory: kernel security, bug fix, and enhancement update

Published Sep 5, 2026 · Updated Sep 30, 2026

Ecosystem: Red Hat

Fixed packages 26

ReleasePackageFixed in
Red Hat · RHEL 7 ELS rhel_els:7 bpftool 0:3.10.0-1160.160.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 bpftool-debuginfo 0:3.10.0-1160.160.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel 0:3.10.0-1160.160.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-abi-whitelists 0:3.10.0-1160.160.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-bootwrapper 0:3.10.0-1160.160.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-debug 0:3.10.0-1160.160.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-debug-debuginfo 0:3.10.0-1160.160.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-debug-devel 0:3.10.0-1160.160.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-debuginfo 0:3.10.0-1160.160.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-debuginfo-common-ppc64 0:3.10.0-1160.160.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-debuginfo-common-ppc64le 0:3.10.0-1160.160.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-debuginfo-common-s390x 0:3.10.0-1160.160.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-debuginfo-common-x86_64 0:3.10.0-1160.160.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-devel 0:3.10.0-1160.160.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-doc 0:3.10.0-1160.160.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-kdump 0:3.10.0-1160.160.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-kdump-debuginfo 0:3.10.0-1160.160.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-kdump-devel 0:3.10.0-1160.160.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-tools 0:3.10.0-1160.160.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-tools-debuginfo 0:3.10.0-1160.160.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-tools-libs 0:3.10.0-1160.160.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 kernel-tools-libs-devel 0:3.10.0-1160.160.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 perf 0:3.10.0-1160.160.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 perf-debuginfo 0:3.10.0-1160.160.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 python-perf 0:3.10.0-1160.160.1.el7
Red Hat · RHEL 7 ELS rhel_els:7 python-perf-debuginfo 0:3.10.0-1160.160.1.el7

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_63538.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