Skip to content
OpenAdvisories
High RHSA-2026:36049 3 CVEs

Red Hat Security Advisory: kernel-rt security, bug fix, and enhancement update

Published Jul 7, 2026 · Updated Oct 17, 2026

Ecosystem: Red Hat

Fixed packages 28

ReleasePackageFixed in
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt 0:4.18.0-553.139.1.rt7.480.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-core 0:4.18.0-553.139.1.rt7.480.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debug 0:4.18.0-553.139.1.rt7.480.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debug-core 0:4.18.0-553.139.1.rt7.480.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debug-debuginfo 0:4.18.0-553.139.1.rt7.480.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debug-devel 0:4.18.0-553.139.1.rt7.480.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debug-kvm 0:4.18.0-553.139.1.rt7.480.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debug-modules 0:4.18.0-553.139.1.rt7.480.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debug-modules-extra 0:4.18.0-553.139.1.rt7.480.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debuginfo 0:4.18.0-553.139.1.rt7.480.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-debuginfo-common-x86_64 0:4.18.0-553.139.1.rt7.480.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-devel 0:4.18.0-553.139.1.rt7.480.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-kvm 0:4.18.0-553.139.1.rt7.480.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-modules 0:4.18.0-553.139.1.rt7.480.el8_10
Red Hat · RHEL 8 enterprise_linux:8::nfv kernel-rt-modules-extra 0:4.18.0-553.139.1.rt7.480.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt 0:4.18.0-553.139.1.rt7.480.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-core 0:4.18.0-553.139.1.rt7.480.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-debug 0:4.18.0-553.139.1.rt7.480.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-debug-core 0:4.18.0-553.139.1.rt7.480.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-debug-debuginfo 0:4.18.0-553.139.1.rt7.480.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-debug-devel 0:4.18.0-553.139.1.rt7.480.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-debug-modules 0:4.18.0-553.139.1.rt7.480.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-debug-modules-extra 0:4.18.0-553.139.1.rt7.480.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-debuginfo 0:4.18.0-553.139.1.rt7.480.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-debuginfo-common-x86_64 0:4.18.0-553.139.1.rt7.480.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-devel 0:4.18.0-553.139.1.rt7.480.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-modules 0:4.18.0-553.139.1.rt7.480.el8_10
Red Hat · RHEL 8 enterprise_linux:8::realtime kernel-rt-modules-extra 0:4.18.0-553.139.1.rt7.480.el8_10

Vulnerabilities 3

  • 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 7.0
    CVE-2026-46189

    RDMA/vmw_pvrdma: Fix double free on pvrdma_alloc_ucontext() error path

    In the Linux kernel, the following vulnerability has been resolved: RDMA/vmw_pvrdma: Fix double free on pvrdma_alloc_ucontext() error path Sashiko points out that pvrdma_uar_free() is already called within pvrdma_dealloc_ucontext(), so calling it before trigg…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Unscored —
    CVE-2026-23216

    scsi: target: iscsi: Fix use-after-free in iscsit_dec_conn_usage_count()

    In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Fix use-after-free in iscsit_dec_conn_usage_count() In iscsit_dec_conn_usage_count(), the function calls complete() while holding the conn->conn_usage_lock. As soon as co…

    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=2440630
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2481922
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2482588
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_36049.json
  • report
    https://access.redhat.com/security/cve/CVE-2026-23216
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-23216
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-23216
  • article
    https://lore.kernel.org/linux-cve-announce/2026021800-CVE-2026-23216-6c63@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-2026-46189
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-46189
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-46189
  • article
    https://lore.kernel.org/linux-cve-announce/2026052831-CVE-2026-46189-c188@gregkh/T