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OpenAdvisories
Critical RHSA-2026:90933 1 CVE

Red Hat Security Advisory: kernel security update

Published Nov 13, 2026 · Updated Nov 13, 2026

Ecosystem: Red Hat

Fixed packages 19

ReleasePackageFixed in
Red Hat · RHEL 6 ELS rhel_els:6 kernel 0:2.6.32-754.66.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 kernel-abi-whitelists 0:2.6.32-754.66.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 kernel-debug 0:2.6.32-754.66.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 kernel-debug-debuginfo 0:2.6.32-754.66.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 kernel-debug-devel 0:2.6.32-754.66.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 kernel-debuginfo 0:2.6.32-754.66.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 kernel-debuginfo-common-i686 0:2.6.32-754.66.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 kernel-debuginfo-common-s390x 0:2.6.32-754.66.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 kernel-debuginfo-common-x86_64 0:2.6.32-754.66.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 kernel-devel 0:2.6.32-754.66.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 kernel-doc 0:2.6.32-754.66.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 kernel-firmware 0:2.6.32-754.66.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 kernel-kdump 0:2.6.32-754.66.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 kernel-kdump-debuginfo 0:2.6.32-754.66.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 kernel-kdump-devel 0:2.6.32-754.66.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 perf 0:2.6.32-754.66.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 perf-debuginfo 0:2.6.32-754.66.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 python-perf 0:2.6.32-754.66.1.el6
Red Hat · RHEL 6 ELS rhel_els:6 python-perf-debuginfo 0:2.6.32-754.66.1.el6

Vulnerabilities 1

  • Critical 9.3
    CVE-2026-99999 Public exploit

    ipv4: validate checksum_start before completing checksum

    In the Linux kernel, the following vulnerability has been resolved: ipv4: validate checksum_start before completing checksum If a packet with bad checksum metadata gets into the ipv4 stack, skb_checksum_help can corrupt the network header and cause a bunch of…

    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=2553429
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_90933.json
  • report
    https://access.redhat.com/security/cve/CVE-2026-99999
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-99999
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-99999
  • article
    https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-99999.mbox