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OpenAdvisories
High RHSA-2026:63189 5 CVEs

Red Hat Security Advisory: kernel-rt security update

Published Sep 4, 2026 · Updated Nov 13, 2026

Ecosystem: Red Hat

Fixed packages 11

ReleasePackageFixed in
Red Hat · Rhel Extras Rt Els 7 rhel_extras_rt_els:7 kernel-rt 0:3.10.0-1160.159.1.rt56.1311.el7
Red Hat · Rhel Extras Rt Els 7 rhel_extras_rt_els:7 kernel-rt-debug 0:3.10.0-1160.159.1.rt56.1311.el7
Red Hat · Rhel Extras Rt Els 7 rhel_extras_rt_els:7 kernel-rt-debug-debuginfo 0:3.10.0-1160.159.1.rt56.1311.el7
Red Hat · Rhel Extras Rt Els 7 rhel_extras_rt_els:7 kernel-rt-debug-devel 0:3.10.0-1160.159.1.rt56.1311.el7
Red Hat · Rhel Extras Rt Els 7 rhel_extras_rt_els:7 kernel-rt-debuginfo 0:3.10.0-1160.159.1.rt56.1311.el7
Red Hat · Rhel Extras Rt Els 7 rhel_extras_rt_els:7 kernel-rt-debuginfo-common-x86_64 0:3.10.0-1160.159.1.rt56.1311.el7
Red Hat · Rhel Extras Rt Els 7 rhel_extras_rt_els:7 kernel-rt-devel 0:3.10.0-1160.159.1.rt56.1311.el7
Red Hat · Rhel Extras Rt Els 7 rhel_extras_rt_els:7 kernel-rt-doc 0:3.10.0-1160.159.1.rt56.1311.el7
Red Hat · Rhel Extras Rt Els 7 rhel_extras_rt_els:7 kernel-rt-trace 0:3.10.0-1160.159.1.rt56.1311.el7
Red Hat · Rhel Extras Rt Els 7 rhel_extras_rt_els:7 kernel-rt-trace-debuginfo 0:3.10.0-1160.159.1.rt56.1311.el7
Red Hat · Rhel Extras Rt Els 7 rhel_extras_rt_els:7 kernel-rt-trace-devel 0:3.10.0-1160.159.1.rt56.1311.el7

Vulnerabilities 5

  • High 7.8
    CVE-2026-43116

    netfilter: ctnetlink: ensure safe access to master conntrack

    In the Linux kernel, the following vulnerability has been resolved: netfilter: ctnetlink: ensure safe access to master conntrack Holding reference on the expectation is not sufficient, the master conntrack object can just go away, making exp->master invalid. …

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2026-45984

    gfs2: Fix use-after-free in iomap inline data write path

    In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix use-after-free in iomap inline data write path The inline data buffer head (dibh) is being released prematurely in gfs2_iomap_begin() via release_metapath() while iomap->inline_data…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • 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
  • Medium 6.3
    CVE-2026-53059

    dm log: fix out-of-bounds write due to region_count overflow

    In the Linux kernel, the following vulnerability has been resolved: dm log: fix out-of-bounds write due to region_count overflow The local variable region_count in create_log_context() is declared as unsigned int (32-bit), but dm_sector_div_up() returns secto…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • Unscored —
    CVE-2023-52924

    netfilter: nf_tables: don't skip expired elements during walk

    In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: don't skip expired elements during walk There is an asymmetry between commit/abort and preparation phase if the following conditions are met: 1. set is a verdict map ("1…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu

References

  • article
    https://access.redhat.com/security/updates/classification/#important
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2343897
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2467005
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2481922
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2492094
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2492277
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_63189.json
  • report
    https://access.redhat.com/security/cve/CVE-2023-52924
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2023-52924
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2023-52924
  • article
    https://lore.kernel.org/linux-cve-announce/2025020500-CVE-2023-52924-03d7@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2026-43116
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-43116
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-43116
  • article
    https://kernelcve.org/list/?q=CVE-2026-43116
  • article
    https://lore.kernel.org/linux-cve-announce/2026050626-CVE-2026-43116-08a5@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2026-45984
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-45984
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-45984
  • article
    https://lore.kernel.org/linux-cve-announce/2026052739-CVE-2026-45984-107d@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-2026-53059
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-53059
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-53059
  • article
    https://lore.kernel.org/linux-cve-announce/2026062401-CVE-2026-53059-f32e@gregkh/T