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Critical RHSA-2026:96090 4 CVEs

Red Hat Security Advisory: kpatch-patch-5_14_0-427_100_1, kpatch-patch-5_14_0-427_113_1, kpatch-patch-5_14_0-427_126_1, kpatch-patch-5_14_0-427_146_1, and kpatch-patch-5_14_0-427_84_1 security update

Published Nov 13, 2026 · Updated Nov 13, 2026

Ecosystem: Red Hat

Fixed packages 15

ReleasePackageFixed in
Red Hat · RHEL 9.4 E4S rhel_e4s:9.4::baseos kpatch-patch-5_14_0-427_100_1 0:1-18.el9_4
Red Hat · RHEL 9.4 E4S rhel_e4s:9.4::baseos kpatch-patch-5_14_0-427_100_1-debuginfo 0:1-18.el9_4
Red Hat · RHEL 9.4 E4S rhel_e4s:9.4::baseos kpatch-patch-5_14_0-427_100_1-debugsource 0:1-18.el9_4
Red Hat · RHEL 9.4 E4S rhel_e4s:9.4::baseos kpatch-patch-5_14_0-427_113_1 0:1-16.el9_4
Red Hat · RHEL 9.4 E4S rhel_e4s:9.4::baseos kpatch-patch-5_14_0-427_113_1-debuginfo 0:1-16.el9_4
Red Hat · RHEL 9.4 E4S rhel_e4s:9.4::baseos kpatch-patch-5_14_0-427_113_1-debugsource 0:1-16.el9_4
Red Hat · RHEL 9.4 E4S rhel_e4s:9.4::baseos kpatch-patch-5_14_0-427_126_1 0:1-13.el9_4
Red Hat · RHEL 9.4 E4S rhel_e4s:9.4::baseos kpatch-patch-5_14_0-427_126_1-debuginfo 0:1-13.el9_4
Red Hat · RHEL 9.4 E4S rhel_e4s:9.4::baseos kpatch-patch-5_14_0-427_126_1-debugsource 0:1-13.el9_4
Red Hat · RHEL 9.4 E4S rhel_e4s:9.4::baseos kpatch-patch-5_14_0-427_146_1 0:1-4.el9_4
Red Hat · RHEL 9.4 E4S rhel_e4s:9.4::baseos kpatch-patch-5_14_0-427_146_1-debuginfo 0:1-4.el9_4
Red Hat · RHEL 9.4 E4S rhel_e4s:9.4::baseos kpatch-patch-5_14_0-427_146_1-debugsource 0:1-4.el9_4
Red Hat · RHEL 9.4 E4S rhel_e4s:9.4::baseos kpatch-patch-5_14_0-427_84_1 0:1-20.el9_4
Red Hat · RHEL 9.4 E4S rhel_e4s:9.4::baseos kpatch-patch-5_14_0-427_84_1-debuginfo 0:1-20.el9_4
Red Hat · RHEL 9.4 E4S rhel_e4s:9.4::baseos kpatch-patch-5_14_0-427_84_1-debugsource 0:1-20.el9_4

Vulnerabilities 4

  • Critical 10.0
    CVE-2026-74705

    udp: fix potential use-after-free in tunnel segmentation

    In the Linux kernel, the following vulnerability has been resolved: udp: fix potential use-after-free in tunnel segmentation __skb_udp_tunnel_segment() gets the UDP header before ensuring the tunnel header is in the skb head. If the pull reallocates skb->head…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Critical 9.8
    CVE-2026-46195

    smb: client: validate dacloffset before building DACL pointers

    In the Linux kernel, the following vulnerability has been resolved: smb: client: validate dacloffset before building DACL pointers parse_sec_desc(), build_sec_desc(), and the chown path in id_mode_to_cifs_acl() all add the server-supplied dacloffset to pntsd …

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2026-52923 Public exploit

    ipc: limit next_id allocation to the valid ID range

    In the Linux kernel, the following vulnerability has been resolved: ipc: limit next_id allocation to the valid ID range The checkpoint/restore sysctl path can request the next SysV IPC id through ids->next_id. ipc_idr_alloc() currently forwards that request t…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2026-81000 Public exploit

    net: tun: bound receive headroom

    In the Linux kernel, the following vulnerability has been resolved: net: tun: bound receive headroom tun_get_user() uses tun->align both as skb headroom and when choosing how much packet data to keep linear. OVS can propagate an oversized headroom request fro…

    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=2482606
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2492094
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2521498
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2532176
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_96090.json
  • report
    https://access.redhat.com/security/cve/CVE-2026-46195
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-46195
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-46195
  • article
    https://lore.kernel.org/linux-cve-announce/2026052833-CVE-2026-46195-f7ef@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2026-52923
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-52923
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-52923
  • article
    https://lore.kernel.org/linux-cve-announce/2026062431-CVE-2026-52923-35fb@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2026-74705
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-74705
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-74705
  • article
    https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-74705.mbox
  • report
    https://access.redhat.com/security/cve/CVE-2026-81000
  • article
    https://access.redhat.com/security/vulnerabilities/RHSB-2026-011
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-81000
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-81000
  • article
    https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-81000.mbox