Skip to content
OpenAdvisories
High RHSA-2026:47632 4 CVEs

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

Published Jul 30, 2026 · Updated Sep 15, 2026

Ecosystem: Red Hat

Fixed packages 32

ReleasePackageFixed in
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt 0:5.14.0-284.183.1.rt14.468.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-core 0:5.14.0-284.183.1.rt14.468.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debug 0:5.14.0-284.183.1.rt14.468.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debug-core 0:5.14.0-284.183.1.rt14.468.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debug-debuginfo 0:5.14.0-284.183.1.rt14.468.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debug-devel 0:5.14.0-284.183.1.rt14.468.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debug-kvm 0:5.14.0-284.183.1.rt14.468.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debug-modules 0:5.14.0-284.183.1.rt14.468.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debug-modules-core 0:5.14.0-284.183.1.rt14.468.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debug-modules-extra 0:5.14.0-284.183.1.rt14.468.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debuginfo 0:5.14.0-284.183.1.rt14.468.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-debuginfo-common-x86_64 0:5.14.0-284.183.1.rt14.468.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-devel 0:5.14.0-284.183.1.rt14.468.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-kvm 0:5.14.0-284.183.1.rt14.468.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-modules 0:5.14.0-284.183.1.rt14.468.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-modules-core 0:5.14.0-284.183.1.rt14.468.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::nfv kernel-rt-modules-extra 0:5.14.0-284.183.1.rt14.468.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt 0:5.14.0-284.183.1.rt14.468.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-core 0:5.14.0-284.183.1.rt14.468.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debug 0:5.14.0-284.183.1.rt14.468.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debug-core 0:5.14.0-284.183.1.rt14.468.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debug-debuginfo 0:5.14.0-284.183.1.rt14.468.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debug-devel 0:5.14.0-284.183.1.rt14.468.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debug-modules 0:5.14.0-284.183.1.rt14.468.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debug-modules-core 0:5.14.0-284.183.1.rt14.468.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debug-modules-extra 0:5.14.0-284.183.1.rt14.468.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debuginfo 0:5.14.0-284.183.1.rt14.468.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-debuginfo-common-x86_64 0:5.14.0-284.183.1.rt14.468.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-devel 0:5.14.0-284.183.1.rt14.468.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-modules 0:5.14.0-284.183.1.rt14.468.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-modules-core 0:5.14.0-284.183.1.rt14.468.el9_2
Red Hat · RHEL 9.2 E4S rhel_e4s:9.2::realtime kernel-rt-modules-extra 0:5.14.0-284.183.1.rt14.468.el9_2

Vulnerabilities 4

  • High 7.8
    CVE-2026-31488

    drm/amd/display: Do not skip unrelated mode changes in DSC validation

    In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Do not skip unrelated mode changes in DSC validation Starting with commit 17ce8a6907f7 ("drm/amd/display: Add dsc pre-validation in atomic check"), amdgpu resets the CRTC sta…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2026-46116

    xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete

    In the Linux kernel, the following vulnerability has been resolved: xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete KASAN reproduces a slab-use-after-free in __xfrm_state_delete()'s hlist_del_rcu calls under syzkaller load on linux-6.12.y sta…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2026-46209

    drm/gem: Fix inconsistent plane dimension calculation in drm_gem_fb_init_with_funcs()

    In the Linux kernel, the following vulnerability has been resolved: drm/gem: Fix inconsistent plane dimension calculation in drm_gem_fb_init_with_funcs() drm_gem_fb_init_with_funcs() computes sub-sampled plane dimensions using plain integer division: unsigned…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Unscored —
    CVE-2026-31684

    net: sched: act_csum: validate nested VLAN headers

    In the Linux kernel, the following vulnerability has been resolved: net: sched: act_csum: validate nested VLAN headers tcf_csum_act() walks nested VLAN headers directly from skb->data when an skb still carries in-payload VLAN tags. The current code reads vlan…

    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=2460619
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2461757
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2482523
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2482636
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_47632.json
  • report
    https://access.redhat.com/security/cve/CVE-2026-31488
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-31488
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-31488
  • article
    https://lore.kernel.org/linux-cve-announce/2026042200-CVE-2026-31488-fe04@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2026-31684
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-31684
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-31684
  • article
    https://lore.kernel.org/linux-cve-announce/2026042545-CVE-2026-31684-6974@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2026-46116
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-46116
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-46116
  • article
    https://lore.kernel.org/linux-cve-announce/2026052814-CVE-2026-46116-73b8@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2026-46209
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-46209
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-46209
  • article
    https://lore.kernel.org/linux-cve-announce/2026052834-CVE-2026-46209-e4e9@gregkh/T