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OpenAdvisories
High RHSA-2026:71649 2 CVEs

Red Hat Security Advisory: kernel security update

Published Sep 25, 2026 · Updated Oct 16, 2026

Ecosystem: Red Hat

Fixed packages 19

ReleasePackageFixed in
Red Hat · RHEL 6 ELS rhel_els:6 kernel 0:2.6.32-754.63.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 kernel-abi-whitelists 0:2.6.32-754.63.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 kernel-debug 0:2.6.32-754.63.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 kernel-debug-debuginfo 0:2.6.32-754.63.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 kernel-debug-devel 0:2.6.32-754.63.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 kernel-debuginfo 0:2.6.32-754.63.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 kernel-debuginfo-common-i686 0:2.6.32-754.63.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 kernel-debuginfo-common-s390x 0:2.6.32-754.63.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 kernel-debuginfo-common-x86_64 0:2.6.32-754.63.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 kernel-devel 0:2.6.32-754.63.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 kernel-doc 0:2.6.32-754.63.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 kernel-firmware 0:2.6.32-754.63.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 kernel-kdump 0:2.6.32-754.63.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 kernel-kdump-debuginfo 0:2.6.32-754.63.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 kernel-kdump-devel 0:2.6.32-754.63.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 perf 0:2.6.32-754.63.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 perf-debuginfo 0:2.6.32-754.63.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 python-perf 0:2.6.32-754.63.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 python-perf-debuginfo 0:2.6.32-754.63.1.el6

Vulnerabilities 2

  • High 7.8
    CVE-2026-68121 Public exploit

    pppoe: reload header pointer after dev_hard_header()

    In the Linux kernel, the following vulnerability has been resolved: pppoe: reload header pointer after dev_hard_header() pppoe_sendmsg() saves a pointer to the PPPoE header before calling dev_hard_header(). Device header callbacks are allowed to reallocate th…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • Unscored —
    CVE-2026-80844 Public exploit

    xfrm: ah6: validate routing header segments_left

    In the Linux kernel, the following vulnerability has been resolved: xfrm: ah6: validate routing header segments_left AH6 rearranges routing-header addresses before computing or verifying the ICV. ipv6_rearrange_rthdr() assumes that segments_left is not larger…

    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=2513233
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2528676
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_71649.json
  • report
    https://access.redhat.com/security/cve/CVE-2026-68121
  • article
    https://access.redhat.com/security/vulnerabilities/RHSB-2026-011
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-68121
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-68121
  • article
    https://lore.kernel.org/linux-cve-announce/2026081056-CVE-2026-68121-b20f@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2026-80844
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-80844
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-80844
  • article
    https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-80844.mbox