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OpenAdvisories
Critical RHSA-2026:94303 2 CVEs

Red Hat Security Advisory: kernel security update

Published Nov 13, 2026 · Updated Nov 14, 2026

Ecosystem: Red Hat

Fixed packages 49

ReleasePackageFixed in
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos bpftool 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos bpftool-debuginfo 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-abi-stablelists 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-core 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-debug 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-debug-core 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-debug-debuginfo 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-debug-devel 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-debug-modules 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-debug-modules-extra 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-debuginfo 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-debuginfo-common-ppc64le 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-debuginfo-common-x86_64 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-devel 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-doc 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-modules 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-modules-extra 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-tools 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-tools-debuginfo 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kernel-tools-libs 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos perf 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos perf-debuginfo 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos python3-perf 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos python3-perf-debuginfo 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos bpftool 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos bpftool-debuginfo 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-abi-stablelists 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-core 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-debug 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-debug-core 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-debug-debuginfo 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-debug-devel 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-debug-modules 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-debug-modules-extra 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-debuginfo 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-debuginfo-common-x86_64 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-devel 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-doc 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-modules 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-modules-extra 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-tools 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-tools-debuginfo 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos kernel-tools-libs 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos perf 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos perf-debuginfo 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos python3-perf 0:4.18.0-477.178.1.el8_8
Red Hat · RHEL 8.8 TUS rhel_tus:8.8::baseos python3-perf-debuginfo 0:4.18.0-477.178.1.el8_8

Vulnerabilities 2

  • Critical 9.8
    CVE-2026-98432 Public exploit

    ipv4: free inet_opt and ireq_opt after an RCU grace period

    In the Linux kernel, the following vulnerability has been resolved: ipv4: free inet_opt and ireq_opt after an RCU grace period tcp_v4_syn_recv_sock() transfers ownership of ireq->ireq_opt to the child socket (newinet->inet_opt) without copying it. Another cpu…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Unscored —
    CVE-2026-99284

    net: skbuff: propagate shared-frag marker in skb_zerocopy()

    In the Linux kernel, the following vulnerability has been resolved: net: skbuff: propagate shared-frag marker in skb_zerocopy() skb_zerocopy() moves frag descriptors from @from into @to and takes a reference on each frag, but it does not copy skb_shinfo(from)…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux

References

  • article
    https://access.redhat.com/security/updates/classification/#critical
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2553390
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2559835
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_94303.json
  • report
    https://access.redhat.com/security/cve/CVE-2026-98432
  • article
    https://access.redhat.com/security/vulnerabilities/RHSB-2026-016
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-98432
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-98432
  • article
    https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98432.mbox
  • report
    https://access.redhat.com/security/cve/CVE-2026-99284
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2568683
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-99284
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-99284
  • article
    https://git.kernel.org/stable/c/1a9c180cd8435917b7516edfb1c9148032c28773
  • article
    https://git.kernel.org/stable/c/1c623e3cbf43f12dd4a72712079bfa247a9b8ba3
  • article
    https://git.kernel.org/stable/c/79dc34beb1fdb3da79753e51e15c68591a2561fe
  • article
    https://git.kernel.org/stable/c/d7d6ff98d5d1b400f02211f962ac32cc0020aeab