Skip to content
Fencer Vulns
critical 9.8

CVE-2026-64564 in the critical feed json

sctp: don't free the ASCONF's own transport in DEL-IP processing

published 2026-08-04 3 mo ago modified 2026-11-03 5 d ago also EUVD-2026-52605

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.4%
EPSS 1.4% chance of exploitation in 30 days, percentile 73%
public exploits
0
none known

Summary

In the Linux kernel, the following vulnerability has been resolved:

sctp: don't free the ASCONF's own transport in DEL-IP processing

sctp_process_asconf() caches the transport the ASCONF chunk is processed against in asconf->transport (== chunk->transport, set once in sctp_rcv()). For an ASCONF located through its Address Parameter by __sctp_rcv_asconf_lookup(), that cached transport corresponds to the Address Parameter, which need not be the packet's source address.

sctp_process_asconf_param() rejects a DEL-IP for the packet source address (ADDIP D8, SCTP_ERROR_DEL_SRC_IP), but nothing protects asconf->transport. A single ASCONF can therefore carry, in order:

[Address Parameter L] [DEL-IP L] [DEL-IP 0.0.0.0]

where L differs from the source. The DEL-IP for L passes the D8 check and calls sctp_assoc_rm_peer() on the transport that asconf->transport still points at, freeing it (RCU-deferred). The following wildcard DEL-IP then reuses the now-dangling asconf->transport in sctp_assoc_set_primary() and sctp_assoc_del_nonprimary_peers(): set_primary() dereferences the freed transport (->ipaddr, ->state) and plants the dangling pointer into asoc->peer.primary_path / active_path, and del_nonprimary_peers(), keeping only the pointer that is no longer on the list, removes every real transport, leaving the association with a transport_count of 0 and primary_path/active_path pointing at freed memory.

Reject a DEL-IP that targets the transport the ASCONF is being processed against, mirroring the existing source-address guard, so the wildcard branch can never reuse a freed transport.

Patch / fix

  • Linux Linux 5.10.265, 5.15.216, 6.1.183, 6.6.148, 6.12.101, 6.18.42, 7.1.6, 7.2
  • linux Debian 12 6.1.187-1
  • linux Debian 13 6.12.101-1
  • linux Debian 14 7.1.6-1
  • linux-6.12 Debian 12 6.12.101-1~deb12u1

debian advisories DEBIAN-CVE-2026-64564

  • linux Ubuntu 22.04 LTS 5.15.0-198.208
  • linux Ubuntu 24.04 LTS 6.8.0-147.147
  • linux Ubuntu 26.04 LTS 7.0.0-38.38
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1117.124
  • linux-aws Ubuntu 24.04 LTS 6.8.0-1067.70
  • linux-aws Ubuntu 26.04 LTS 7.0.0-1014.14
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1118.128
  • linux-gcp Ubuntu 24.04 LTS 6.8.0-1071.79

ubuntu advisories UBUNTU-CVE-2026-64564

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kernel RHEL 10.2 6.12.0-211.59.1.el10_2
  • rv RHEL 10.2 6.12.0-211.59.1.el10_2
  • perf RHEL 10.2 6.12.0-211.59.1.el10_2
  • rtla RHEL 10.2 6.12.0-211.59.1.el10_2
  • libperf RHEL 10.2 6.12.0-211.59.1.el10_2
  • kernel-rt RHEL 10.2 6.12.0-211.59.1.el10_2
  • kernel-64k RHEL 10.2 6.12.0-211.59.1.el10_2
  • kernel-core RHEL 10.2 6.12.0-211.59.1.el10_2

red hat advisories RHSA-2026:71233RHSA-2026:71232RHSA-2026:71213RHSA-2026:71016RHSA-2026:70484RHSA-2026:70482

  • kernel-default SLES for SAP 15 SP6, SLES 15 SP6-LTSS, SLE Live Patching 15 SP6 +1 more 6.4.0-150600.23.130.1
  • kernel-livepatch-SLE16_Update_15 SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 3-160000.1.1
  • kernel-livepatch-SLE16_Update_5 SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 11-160000.1.1
  • kernel-livepatch-SLE16_Update_4 SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 12-160000.1.1
  • kernel-livepatch-SLE16_Update_3 SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 13-160000.1.1
  • kernel-livepatch-SLE16_Update_2 SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 14-160000.1.1
  • kernel-livepatch-SLE16_Update_10 SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 7-160000.1.1
  • kernel-livepatch-SLE16_Update_9 SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 7-160000.1.1

suse advisories SUSE-SU-2026:3602-1SUSE-SU-2026:23951-1SUSE-SU-2026:23968-1SUSE-SU-2026:23944-1SUSE-SU-2026:23967-1SUSE-SU-2026:23942-1

  • kernel-rt openSUSE Leap 16.0 6.12.0-160000.37.1
  • dtb-aarch64 openSUSE Leap 16.0 6.12.0-160000.37.1
  • kernel-64kb openSUSE Leap 16.0 6.12.0-160000.37.1
  • kernel-syms openSUSE Leap 16.0 6.12.0-160000.37.1
  • kernel-azure openSUSE Leap 16.0 6.12.0-160000.37.1
  • kernel-obs-qa openSUSE Leap 16.0 6.12.0-160000.37.1
  • kernel-source openSUSE Leap 16.0 6.12.0-160000.37.1
  • kernel-default openSUSE Leap 16.0 6.12.0-160000.37.1

opensuse advisories openSUSE-SU-2026:21555-1openSUSE-SU-2026:11476-1

  • kernel AlmaLinux 9 5.14.0-687.51.1.el9_8
  • kernel-64k AlmaLinux 9 5.14.0-687.51.1.el9_8
  • kernel-core AlmaLinux 9 5.14.0-687.51.1.el9_8
  • kernel-64k-core AlmaLinux 9 5.14.0-687.51.1.el9_8
  • kernel-debug-core AlmaLinux 9 5.14.0-687.51.1.el9_8
  • kernel-64k-modules AlmaLinux 9 5.14.0-687.51.1.el9_8
  • kernel-debug-modules AlmaLinux 9 5.14.0-687.51.1.el9_8
  • kernel-64k-debug-core AlmaLinux 9 5.14.0-687.51.1.el9_8

almalinux advisories ALSA-2026:71232ALSA-2026:71233ALSA-2026:71016ALSA-2026:71213

  • kernel Rocky Linux 9 5.14.0-687.51.1.el9_8

rocky linux advisories RLSA-2026:71232

  • kernel Azure Linux 3.0 6.6.150.1-1

azure linux advisories AZL-94395

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-64564 updated cvss 7.8

kernel: sctp: don't free the ASCONF's own transport in DEL-IP processing

  • Red Hat Enterprise Linux 9 kernel-rt, kernel-rt-kvm, kernel-rt-core, kernel-rt-modules, kernel-rt-debug-kvm, kernel-rt-debug-core, +12 more Red Hat OpenShift Container Platform 5 openshift/ose-rhel-coreos-9
    affected: workaround, no fix available
  • Red Hat CodeReady Linux Builder EUS (v.9.6) libperf 5.14.0-570.142.1.el9_6, kernel-debuginfo-common-s390x 5.14.0-570.142.1.el9_6, kernel-debuginfo-common-x86_64 5.14.0-570.142.1.el9_6, kernel-debuginfo-common-aarch64 5.14.0-570.142.1.el9_6, kernel-debuginfo-common-ppc64le 5.14.0-570.142.1.el9_6
    fixed: vendor fix RHSA-2026:70484
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-687.51.1.el9_8, perf 5.14.0-687.51.1.el9_8, rtla 5.14.0-687.51.1.el9_8, python3-perf 5.14.0-687.51.1.el9_8, kernel-devel-matched 5.14.0-687.51.1.el9_8, kernel-64k-devel-matched 5.14.0-687.51.1.el9_8, +7 more
    fixed: vendor fix RHSA-2026:71232
  • Red Hat Enterprise Linux AppStream (v. 10) rv 6.12.0-211.59.1.el10_2, perf 6.12.0-211.59.1.el10_2, rtla 6.12.0-211.59.1.el10_2, python3-perf 6.12.0-211.59.1.el10_2, kernel-devel-matched 6.12.0-211.59.1.el10_2, kernel-64k-devel-matched 6.12.0-211.59.1.el10_2, +7 more
    fixed: vendor fix RHSA-2026:71233
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) perf 5.14.0-284.193.1.el9_2, rtla 5.14.0-284.193.1.el9_2, kernel-devel-matched 5.14.0-284.193.1.el9_2, kernel-64k-devel-matched 5.14.0-284.193.1.el9_2, kernel-debug-devel-matched 5.14.0-284.193.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.193.1.el9_2, +5 more
    fixed: vendor fix RHSA-2026:70482
  • Red Hat Enterprise Linux AppStream E4S (v.9.4) rv 5.14.0-427.151.1.el9_4, perf 5.14.0-427.151.1.el9_4, rtla 5.14.0-427.151.1.el9_4, kernel-devel-matched 5.14.0-427.151.1.el9_4, kernel-64k-devel-matched 5.14.0-427.151.1.el9_4, kernel-debug-devel-matched 5.14.0-427.151.1.el9_4, +6 more
    fixed: vendor fix RHSA-2026:69908
  • Red Hat Enterprise Linux AppStream EUS (v. 10.0) rv 6.12.0-55.105.1.el10_0, perf 6.12.0-55.105.1.el10_0, rtla 6.12.0-55.105.1.el10_0, python3-perf 6.12.0-55.105.1.el10_0, kernel-devel-matched 6.12.0-55.105.1.el10_0, kernel-64k-devel-matched 6.12.0-55.105.1.el10_0, +7 more
    fixed: vendor fix RHSA-2026:69089
  • Red Hat Enterprise Linux AppStream EUS (v.9.6) rv 5.14.0-570.142.1.el9_6, perf 5.14.0-570.142.1.el9_6, rtla 5.14.0-570.142.1.el9_6, python3-perf 5.14.0-570.142.1.el9_6, kernel-devel-matched 5.14.0-570.142.1.el9_6, kernel-64k-devel-matched 5.14.0-570.142.1.el9_6, +7 more
    fixed: vendor fix RHSA-2026:70484
show 31 more
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.167.1.el8_10, kernel 4.18.0-553.167.1.el8_10, bpftool 4.18.0-553.167.1.el8_10, kernel-core 4.18.0-553.167.1.el8_10, kernel-tools 4.18.0-553.167.1.el8_10, python3-perf 4.18.0-553.167.1.el8_10, +15 more
    fixed: vendor fix RHSA-2026:71213
  • Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-687.51.1.el9_8, kernel-64k 5.14.0-687.51.1.el9_8, kernel-core 5.14.0-687.51.1.el9_8, kernel-tools 5.14.0-687.51.1.el9_8, kernel-modules 5.14.0-687.51.1.el9_8, kernel-64k-core 5.14.0-687.51.1.el9_8, +27 more
    fixed: vendor fix RHSA-2026:71232
  • Red Hat Enterprise Linux BaseOS (v. 10) kernel 6.12.0-211.59.1.el10_2, kernel-64k 6.12.0-211.59.1.el10_2, kernel-core 6.12.0-211.59.1.el10_2, kernel-tools 6.12.0-211.59.1.el10_2, kernel-modules 6.12.0-211.59.1.el10_2, kernel-64k-core 6.12.0-211.59.1.el10_2, +28 more
    fixed: vendor fix RHSA-2026:71233
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) perf 4.18.0-305.208.1.el8_4, kernel 4.18.0-305.208.1.el8_4, bpftool 4.18.0-305.208.1.el8_4, kernel-core 4.18.0-305.208.1.el8_4, kernel-tools 4.18.0-305.208.1.el8_4, python3-perf 4.18.0-305.208.1.el8_4, +8 more
    fixed: vendor fix RHSA-2026:69874
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) perf 4.18.0-372.216.1.el8_6, kernel 4.18.0-372.216.1.el8_6, bpftool 4.18.0-372.216.1.el8_6, kernel-core 4.18.0-372.216.1.el8_6, kernel-tools 4.18.0-372.216.1.el8_6, python3-perf 4.18.0-372.216.1.el8_6, +8 more
    fixed: vendor fix RHSA-2026:69906
  • Red Hat Enterprise Linux BaseOS E4S (v.8.8) perf 4.18.0-477.168.1.el8_8, kernel 4.18.0-477.168.1.el8_8, bpftool 4.18.0-477.168.1.el8_8, kernel-core 4.18.0-477.168.1.el8_8, kernel-tools 4.18.0-477.168.1.el8_8, python3-perf 4.18.0-477.168.1.el8_8, +9 more
    fixed: vendor fix RHSA-2026:69837
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool 7.0.0-284.193.1.el9_2, kernel 5.14.0-284.193.1.el9_2, kernel-64k 5.14.0-284.193.1.el9_2, kernel-core 5.14.0-284.193.1.el9_2, kernel-tools 5.14.0-284.193.1.el9_2, python3-perf 5.14.0-284.193.1.el9_2, +28 more
    fixed: vendor fix RHSA-2026:70482
  • Red Hat Enterprise Linux BaseOS E4S (v.9.4) bpftool 7.3.0-427.151.1.el9_4, kernel 5.14.0-427.151.1.el9_4, kernel-64k 5.14.0-427.151.1.el9_4, kernel-core 5.14.0-427.151.1.el9_4, kernel-tools 5.14.0-427.151.1.el9_4, python3-perf 5.14.0-427.151.1.el9_4, +28 more
    fixed: vendor fix RHSA-2026:69908
  • Red Hat Enterprise Linux BaseOS EUS (v. 10.0) kernel 6.12.0-55.105.1.el10_0, kernel-64k 6.12.0-55.105.1.el10_0, kernel-core 6.12.0-55.105.1.el10_0, kernel-tools 6.12.0-55.105.1.el10_0, kernel-modules 6.12.0-55.105.1.el10_0, kernel-64k-core 6.12.0-55.105.1.el10_0, +27 more
    fixed: vendor fix RHSA-2026:69089
  • Red Hat Enterprise Linux BaseOS EUS (v.9.6) kernel 5.14.0-570.142.1.el9_6, kernel-64k 5.14.0-570.142.1.el9_6, kernel-core 5.14.0-570.142.1.el9_6, kernel-tools 5.14.0-570.142.1.el9_6, kernel-modules 5.14.0-570.142.1.el9_6, kernel-64k-core 5.14.0-570.142.1.el9_6, +27 more
    fixed: vendor fix RHSA-2026:70484
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) perf 4.18.0-305.208.1.el8_4, kernel 4.18.0-305.208.1.el8_4, bpftool 4.18.0-305.208.1.el8_4, kernel-core 4.18.0-305.208.1.el8_4, kernel-tools 4.18.0-305.208.1.el8_4, python3-perf 4.18.0-305.208.1.el8_4, +15 more
    fixed: vendor fix RHSA-2026:69874
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6) perf 4.18.0-372.216.1.el8_6, kernel 4.18.0-372.216.1.el8_6, bpftool 4.18.0-372.216.1.el8_6, kernel-core 4.18.0-372.216.1.el8_6, kernel-tools 4.18.0-372.216.1.el8_6, python3-perf 4.18.0-372.216.1.el8_6, +15 more
    fixed: vendor fix RHSA-2026:69906
  • Red Hat Enterprise Linux BaseOS TUS (v.8.8) perf 4.18.0-477.168.1.el8_8, kernel 4.18.0-477.168.1.el8_8, bpftool 4.18.0-477.168.1.el8_8, kernel-core 4.18.0-477.168.1.el8_8, kernel-tools 4.18.0-477.168.1.el8_8, python3-perf 4.18.0-477.168.1.el8_8, +8 more
    fixed: vendor fix RHSA-2026:69837
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libperf 5.14.0-687.51.1.el9_8, kernel-debuginfo-common-s390x 5.14.0-687.51.1.el9_8, kernel-debuginfo-common-x86_64 5.14.0-687.51.1.el9_8, kernel-debuginfo-common-aarch64 5.14.0-687.51.1.el9_8, kernel-debuginfo-common-ppc64le 5.14.0-687.51.1.el9_8
    fixed: vendor fix RHSA-2026:71232
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libperf 6.12.0-211.59.1.el10_2, kernel-debuginfo-common-s390x 6.12.0-211.59.1.el10_2, kernel-debuginfo-common-x86_64 6.12.0-211.59.1.el10_2, kernel-debuginfo-common-aarch64 6.12.0-211.59.1.el10_2, kernel-debuginfo-common-ppc64le 6.12.0-211.59.1.el10_2
    fixed: vendor fix RHSA-2026:71233
  • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) libperf 6.12.0-55.105.1.el10_0, kernel-debuginfo-common-s390x 6.12.0-55.105.1.el10_0, kernel-debuginfo-common-x86_64 6.12.0-55.105.1.el10_0, kernel-debuginfo-common-aarch64 6.12.0-55.105.1.el10_0, kernel-debuginfo-common-ppc64le 6.12.0-55.105.1.el10_0
    fixed: vendor fix RHSA-2026:69089
  • Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.167.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.167.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.167.1.el8_10
    fixed: vendor fix RHSA-2026:71213
  • Red Hat Enterprise Linux for Real Time (v. 7 ELS) kernel-rt 3.10.0-1160.162.1.rt56.1314.el7, kernel-rt-trace 3.10.0-1160.162.1.rt56.1314.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1160.162.1.rt56.1314.el7
    fixed: vendor fix RHSA-2026:70308
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.167.1.rt7.508.el8_10, kernel-rt-kvm 4.18.0-553.167.1.rt7.508.el8_10, kernel-rt-core 4.18.0-553.167.1.rt7.508.el8_10, kernel-rt-modules 4.18.0-553.167.1.rt7.508.el8_10, kernel-rt-debug-kvm 4.18.0-553.167.1.rt7.508.el8_10, kernel-rt-debug-core 4.18.0-553.167.1.rt7.508.el8_10, +4 more
    fixed: vendor fix RHSA-2026:71016
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-687.51.1.el9_8, kernel-rt-64k 5.14.0-687.51.1.el9_8, kernel-rt-core 5.14.0-687.51.1.el9_8, kernel-rt-modules 5.14.0-687.51.1.el9_8, kernel-rt-64k-core 5.14.0-687.51.1.el9_8, kernel-rt-debug-core 5.14.0-687.51.1.el9_8, +14 more
    fixed: vendor fix RHSA-2026:71232
  • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt 6.12.0-211.59.1.el10_2, kernel-rt-64k 6.12.0-211.59.1.el10_2, kernel-rt-core 6.12.0-211.59.1.el10_2, kernel-rt-modules 6.12.0-211.59.1.el10_2, kernel-rt-64k-core 6.12.0-211.59.1.el10_2, kernel-rt-debug-core 6.12.0-211.59.1.el10_2, +14 more
    fixed: vendor fix RHSA-2026:71233
  • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt 5.14.0-284.193.1.rt14.478.el9_2, kernel-rt-core 5.14.0-284.193.1.rt14.478.el9_2, kernel-rt-modules 5.14.0-284.193.1.rt14.478.el9_2, kernel-rt-debug-core 5.14.0-284.193.1.rt14.478.el9_2, kernel-rt-modules-core 5.14.0-284.193.1.rt14.478.el9_2, kernel-rt-debug-modules 5.14.0-284.193.1.rt14.478.el9_2, +4 more
    fixed: vendor fix RHSA-2026:70483
  • Red Hat Enterprise Linux Real Time E4S (v.9.4) kernel-rt 5.14.0-427.151.1.el9_4, kernel-rt-core 5.14.0-427.151.1.el9_4, kernel-rt-modules 5.14.0-427.151.1.el9_4, kernel-rt-debug-core 5.14.0-427.151.1.el9_4, kernel-rt-modules-core 5.14.0-427.151.1.el9_4, kernel-rt-debug-modules 5.14.0-427.151.1.el9_4, +4 more
    fixed: vendor fix RHSA-2026:69908
  • Red Hat Enterprise Linux Real Time EUS (v. 10.0) kernel-rt 6.12.0-55.105.1.el10_0, kernel-rt-64k 6.12.0-55.105.1.el10_0, kernel-rt-core 6.12.0-55.105.1.el10_0, kernel-rt-modules 6.12.0-55.105.1.el10_0, kernel-rt-64k-core 6.12.0-55.105.1.el10_0, kernel-rt-debug-core 6.12.0-55.105.1.el10_0, +14 more
    fixed: vendor fix RHSA-2026:69089
  • Red Hat Enterprise Linux Real Time EUS (v.9.6) kernel-rt 5.14.0-570.142.1.el9_6, kernel-rt-64k 5.14.0-570.142.1.el9_6, kernel-rt-core 5.14.0-570.142.1.el9_6, kernel-rt-modules 5.14.0-570.142.1.el9_6, kernel-rt-64k-core 5.14.0-570.142.1.el9_6, kernel-rt-debug-core 5.14.0-570.142.1.el9_6, +14 more
    fixed: vendor fix RHSA-2026:70484
  • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-687.51.1.el9_8, kernel-rt-core 5.14.0-687.51.1.el9_8, kernel-rt-modules 5.14.0-687.51.1.el9_8, kernel-rt-debug-core 5.14.0-687.51.1.el9_8, kernel-rt-modules-core 5.14.0-687.51.1.el9_8, kernel-rt-debug-modules 5.14.0-687.51.1.el9_8, +4 more
    fixed: vendor fix RHSA-2026:71232
  • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt 6.12.0-211.59.1.el10_2, kernel-rt-core 6.12.0-211.59.1.el10_2, kernel-rt-modules 6.12.0-211.59.1.el10_2, kernel-rt-debug-core 6.12.0-211.59.1.el10_2, kernel-rt-modules-core 6.12.0-211.59.1.el10_2, kernel-rt-debug-modules 6.12.0-211.59.1.el10_2, +4 more
    fixed: vendor fix RHSA-2026:71233
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt 5.14.0-284.193.1.rt14.478.el9_2, kernel-rt-kvm 5.14.0-284.193.1.rt14.478.el9_2, kernel-rt-core 5.14.0-284.193.1.rt14.478.el9_2, kernel-rt-modules 5.14.0-284.193.1.rt14.478.el9_2, kernel-rt-debug-kvm 5.14.0-284.193.1.rt14.478.el9_2, kernel-rt-debug-core 5.14.0-284.193.1.rt14.478.el9_2, +6 more
    fixed: vendor fix RHSA-2026:70483
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4) kernel-rt 5.14.0-427.151.1.el9_4, kernel-rt-kvm 5.14.0-427.151.1.el9_4, kernel-rt-core 5.14.0-427.151.1.el9_4, kernel-rt-modules 5.14.0-427.151.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.151.1.el9_4, kernel-rt-debug-core 5.14.0-427.151.1.el9_4, +6 more
    fixed: vendor fix RHSA-2026:69908
  • Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0) kernel-rt 6.12.0-55.105.1.el10_0, kernel-rt-kvm 6.12.0-55.105.1.el10_0, kernel-rt-core 6.12.0-55.105.1.el10_0, kernel-rt-modules 6.12.0-55.105.1.el10_0, kernel-rt-debug-kvm 6.12.0-55.105.1.el10_0, kernel-rt-debug-core 6.12.0-55.105.1.el10_0, +6 more
    fixed: vendor fix RHSA-2026:69089
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6) kernel-rt 5.14.0-570.142.1.el9_6, kernel-rt-kvm 5.14.0-570.142.1.el9_6, kernel-rt-core 5.14.0-570.142.1.el9_6, kernel-rt-modules 5.14.0-570.142.1.el9_6, kernel-rt-debug-kvm 5.14.0-570.142.1.el9_6, kernel-rt-debug-core 5.14.0-570.142.1.el9_6, +6 more
    fixed: vendor fix RHSA-2026:70484

11 more fixed, 1 more not affected in the full advisory

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
23 d ago

Exploit prediction

1.43% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Linux Linux

Classification

Weakness
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.