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OpenAdvisories
High RHSA-2025:11851 3 CVEs

Red Hat Security Advisory: kernel-rt security update

Published Jul 29, 2025 · Updated Aug 5, 2026

Ecosystem: Red Hat

Fixed packages 28

ReleasePackageFixed in
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt 0:4.18.0-553.64.1.rt7.405.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-core 0:4.18.0-553.64.1.rt7.405.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debug 0:4.18.0-553.64.1.rt7.405.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debug-core 0:4.18.0-553.64.1.rt7.405.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debug-debuginfo 0:4.18.0-553.64.1.rt7.405.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debug-devel 0:4.18.0-553.64.1.rt7.405.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debug-kvm 0:4.18.0-553.64.1.rt7.405.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debug-modules 0:4.18.0-553.64.1.rt7.405.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debug-modules-extra 0:4.18.0-553.64.1.rt7.405.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debuginfo 0:4.18.0-553.64.1.rt7.405.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debuginfo-common-x86_64 0:4.18.0-553.64.1.rt7.405.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-devel 0:4.18.0-553.64.1.rt7.405.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-kvm 0:4.18.0-553.64.1.rt7.405.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-modules 0:4.18.0-553.64.1.rt7.405.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-modules-extra 0:4.18.0-553.64.1.rt7.405.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt 0:4.18.0-553.64.1.rt7.405.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-core 0:4.18.0-553.64.1.rt7.405.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-debug 0:4.18.0-553.64.1.rt7.405.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-debug-core 0:4.18.0-553.64.1.rt7.405.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-debug-debuginfo 0:4.18.0-553.64.1.rt7.405.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-debug-devel 0:4.18.0-553.64.1.rt7.405.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-debug-modules 0:4.18.0-553.64.1.rt7.405.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-debug-modules-extra 0:4.18.0-553.64.1.rt7.405.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-debuginfo 0:4.18.0-553.64.1.rt7.405.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-debuginfo-common-x86_64 0:4.18.0-553.64.1.rt7.405.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-devel 0:4.18.0-553.64.1.rt7.405.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-modules 0:4.18.0-553.64.1.rt7.405.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-modules-extra 0:4.18.0-553.64.1.rt7.405.el8_10

Vulnerabilities 3

  • High 7.8
    CVE-2022-49977

    ftrace: Fix NULL pointer dereference in is_ftrace_trampoline when ftrace is dead

    In the Linux kernel, the following vulnerability has been resolved: ftrace: Fix NULL pointer dereference in is_ftrace_trampoline when ftrace is dead ftrace_startup does not remove ops from ftrace_ops_list when ftrace_startup_enable fails: register_ftrace_func…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • High 7.8
    CVE-2025-21919

    sched/fair: Fix potential memory corruption in child_cfs_rq_on_list

    In the Linux kernel, the following vulnerability has been resolved: sched/fair: Fix potential memory corruption in child_cfs_rq_on_list child_cfs_rq_on_list attempts to convert a 'prev' pointer to a cfs_rq. This 'prev' pointer can originate from struct rq's l…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.1
    CVE-2025-21905

    wifi: iwlwifi: limit printed string from FW file

    In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: limit printed string from FW file There's no guarantee here that the file is always with a NUL-termination, so reading the string may read beyond the end of the TLV. If that's …

    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=2356613
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2356618
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2373574
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_11851.json
  • report
    https://access.redhat.com/security/cve/CVE-2022-49977
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2022-49977
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2022-49977
  • article
    https://lore.kernel.org/linux-cve-announce/2025061819-CVE-2022-49977-3826@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2025-21905
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2025-21905
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2025-21905
  • article
    https://lore.kernel.org/linux-cve-announce/2025040129-CVE-2025-21905-348b@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2025-21919
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2025-21919
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2025-21919
  • article
    https://lore.kernel.org/linux-cve-announce/2025040131-CVE-2025-21919-5f2a@gregkh/T