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OpenAdvisories
High RHSA-2025:22800 3 CVEs

Red Hat Security Advisory: kernel-rt security update

Published Dec 8, 2025 · Updated Oct 2, 2026

Ecosystem: Red Hat

Fixed packages 28

ReleasePackageFixed in
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt 0:4.18.0-553.89.1.rt7.430.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-core 0:4.18.0-553.89.1.rt7.430.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debug 0:4.18.0-553.89.1.rt7.430.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debug-core 0:4.18.0-553.89.1.rt7.430.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debug-debuginfo 0:4.18.0-553.89.1.rt7.430.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debug-devel 0:4.18.0-553.89.1.rt7.430.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debug-kvm 0:4.18.0-553.89.1.rt7.430.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debug-modules 0:4.18.0-553.89.1.rt7.430.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debug-modules-extra 0:4.18.0-553.89.1.rt7.430.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debuginfo 0:4.18.0-553.89.1.rt7.430.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debuginfo-common-x86_64 0:4.18.0-553.89.1.rt7.430.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-devel 0:4.18.0-553.89.1.rt7.430.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-kvm 0:4.18.0-553.89.1.rt7.430.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-modules 0:4.18.0-553.89.1.rt7.430.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-modules-extra 0:4.18.0-553.89.1.rt7.430.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt 0:4.18.0-553.89.1.rt7.430.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-core 0:4.18.0-553.89.1.rt7.430.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-debug 0:4.18.0-553.89.1.rt7.430.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-debug-core 0:4.18.0-553.89.1.rt7.430.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-debug-debuginfo 0:4.18.0-553.89.1.rt7.430.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-debug-devel 0:4.18.0-553.89.1.rt7.430.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-debug-modules 0:4.18.0-553.89.1.rt7.430.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-debug-modules-extra 0:4.18.0-553.89.1.rt7.430.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-debuginfo 0:4.18.0-553.89.1.rt7.430.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-debuginfo-common-x86_64 0:4.18.0-553.89.1.rt7.430.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-devel 0:4.18.0-553.89.1.rt7.430.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-modules 0:4.18.0-553.89.1.rt7.430.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-modules-extra 0:4.18.0-553.89.1.rt7.430.el8_10

Vulnerabilities 3

  • High 7.8
    CVE-2022-50543

    RDMA/rxe: Fix mr->map double free

    In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix mr->map double free rxe_mr_cleanup() which tries to free mr->map again will be called when rxe_mr_init_user() fails: CPU: 0 PID: 4917 Comm: rdma_flush_serv Kdump: loaded Not tai…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • High 7.8
    CVE-2023-53539

    RDMA/rxe: Fix incomplete state save in rxe_requester

    In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix incomplete state save in rxe_requester If a send packet is dropped by the IP layer in rxe_requester() the call to rxe_xmit_packet() can fail with err == -EAGAIN. To recover, the…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Medium 4.7
    CVE-2023-53401

    mm: kmem: fix a NULL pointer dereference in obj_stock_flush_required()

    In the Linux kernel, the following vulnerability has been resolved: mm: kmem: fix a NULL pointer dereference in obj_stock_flush_required() KCSAN found an issue in obj_stock_flush_required(): stock->cached_objcg can be reset between the check and dereference: …

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

References

  • article
    https://access.redhat.com/security/updates/classification/#moderate
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2396417
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2401510
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2402222
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_22800.json
  • report
    https://access.redhat.com/security/cve/CVE-2022-50543
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2022-50543
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2022-50543
  • article
    https://lore.kernel.org/linux-cve-announce/2025100756-CVE-2022-50543-597d@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2023-53401
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2023-53401
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2023-53401
  • article
    https://lore.kernel.org/linux-cve-announce/2025091800-CVE-2023-53401-b668@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2023-53539
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2023-53539
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2023-53539
  • article
    https://lore.kernel.org/linux-cve-announce/2025100443-CVE-2023-53539-4411@gregkh/T