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CVE-2025-68366 json

nbd: defer config unlock in nbd_genl_connect

published 2025-12-24 10 mo ago modified 2026-10-13 26 d ago also EUVD-2025-205088

cvss
—
not scored
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 9%
public exploits
0
none known

Summary

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

nbd: defer config unlock in nbd_genl_connect

There is one use-after-free warning when running NBD_CMD_CONNECT and NBD_CLEAR_SOCK:

nbd_genl_connect nbd_alloc_and_init_config // config_refs=1 nbd_start_device // config_refs=2 set NBD_RT_HAS_CONFIG_REF open nbd // config_refs=3 recv_work done // config_refs=2 NBD_CLEAR_SOCK // config_refs=1 close nbd // config_refs=0 refcount_inc -> uaf

------------[ cut here ]------------ refcount_t: addition on 0; use-after-free. WARNING: CPU: 24 PID: 1014 at lib/refcount.c:25 refcount_warn_saturate+0x12e/0x290 nbd_genl_connect+0x16d0/0x1ab0 genl_family_rcv_msg_doit+0x1f3/0x310 genl_rcv_msg+0x44a/0x790

The issue can be easily reproduced by adding a small delay before refcount_inc(&nbd->config_refs) in nbd_genl_connect():

mutex_unlock(&nbd->config_lock); if (!ret) { set_bit(NBD_RT_HAS_CONFIG_REF, &config->runtime_flags); + printk("before sleep\n"); + mdelay(5 * 1000); + printk("after sleep\n"); refcount_inc(&nbd->config_refs); nbd_connect_reply(info, nbd->index); }

Patch / fix

  • Linux Linux 5.10.248, 5.15.198, 6.1.160, 6.6.120, 6.12.63, 6.17.13, 6.18.2, 6.19
  • linux Debian 12 6.1.162-1
  • linux Debian 13 6.12.63-1
  • linux Debian 14 6.17.13-1

debian advisories DEBIAN-CVE-2025-68366

  • linux Ubuntu 22.04 LTS 5.15.0-173.183
  • linux Ubuntu 24.04 LTS 6.8.0-110.110
  • linux Ubuntu 25.10 6.17.0-19.19
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1103.110
  • linux-aws Ubuntu 24.04 LTS 6.8.0-1052.55
  • linux-aws Ubuntu 25.10 6.17.0-1009.9
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1103.112
  • linux-gcp Ubuntu 24.04 LTS 6.8.0-1054.57

ubuntu advisories UBUNTU-CVE-2025-68366

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 8 4.18.0-553.132.1.el8_10
  • perf RHEL 8 4.18.0-553.132.1.el8_10
  • bpftool RHEL 8 4.18.0-553.132.1.el8_10
  • kernel-core RHEL 8 4.18.0-553.132.1.el8_10
  • kernel-tools RHEL 8 4.18.0-553.132.1.el8_10
  • python3-perf RHEL 8 4.18.0-553.132.1.el8_10
  • kernel-modules RHEL 8 4.18.0-553.132.1.el8_10
  • kernel-zfcpdump RHEL 8 4.18.0-553.132.1.el8_10

red hat advisories RHSA-2026:26563RHSA-2026:26535RHSA-2026:26515RHSA-2026:26462RHSA-2026:25533RHSA-2026:25121

  • kernel-rt Linux Micro 6.1, Linux Micro 6.0 6.4.0-40.1
  • kernel-source-rt Linux Micro 6.1, Linux Micro 6.0 6.4.0-40.1
  • kernel-rt Linux Micro 6.2 6.12.0-160000.26.1
  • kernel-64kb SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 6.12.0-160000.26.1
  • kernel-source SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 6.12.0-160000.26.1
  • kernel-default SLES 16.0, SLE High Availability Extension 16.0, Linux Micro 6.2 +1 more 6.12.0-160000.26.1
  • kernel-default-base SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 6.12.0-160000.26.1.160000.2.7
  • kernel-syms SLES 16.0, Linux Micro Extras 6.2, SLES for SAP applications 16.0 6.12.0-160000.26.1

suse advisories SUSE-SU-2026:20845-1SUSE-SU-2026:20876-1SUSE-SU-2026:20555-1SUSE-SU-2026:20599-1SUSE-SU-2026:20615-1SUSE-SU-2026:20570-1

  • kernel-source-longterm openSUSE Tumbleweed 6.18.16-1.1
  • kernel-rt openSUSE Leap 16.0 6.12.0-160000.26.1
  • dtb-aarch64 openSUSE Leap 16.0 6.12.0-160000.26.1
  • kernel-64kb openSUSE Leap 16.0 6.12.0-160000.26.1
  • kernel-syms openSUSE Leap 16.0 6.12.0-160000.26.1
  • kernel-azure openSUSE Leap 16.0 6.12.0-160000.26.1
  • kernel-obs-qa openSUSE Leap 16.0 6.12.0-160000.26.1
  • kernel-source openSUSE Leap 16.0 6.12.0-160000.26.1

opensuse advisories openSUSE-SU-2026:10301-1openSUSE-SU-2026:20287-1openSUSE-SU-2026:10039-1

  • kernel-rt AlmaLinux 8 4.18.0-553.132.1.rt7.473.el8_10
  • kernel-rt-core AlmaLinux 8 4.18.0-553.132.1.rt7.473.el8_10
  • kernel-rt-modules AlmaLinux 8 4.18.0-553.132.1.rt7.473.el8_10
  • kernel-rt-debug-core AlmaLinux 8 4.18.0-553.132.1.rt7.473.el8_10
  • kernel-rt-debug-modules AlmaLinux 8 4.18.0-553.132.1.rt7.473.el8_10
  • kernel-rt-modules-extra AlmaLinux 8 4.18.0-553.132.1.rt7.473.el8_10
  • kernel-rt-debug-modules-extra AlmaLinux 8 4.18.0-553.132.1.rt7.473.el8_10
  • kernel AlmaLinux 8 4.18.0-553.132.1.el8_10

almalinux advisories ALSA-2026:25120ALSA-2026:25121ALSA-2026:23329ALSA-2026:21556

  • kernel Rocky Linux 8 4.18.0-553.132.1.el8_10.cloud.0.1
  • kernel-rt Rocky Linux 8 4.18.0-553.132.1.rt7.473.el8_10
  • kernel Rocky Linux 8 4.18.0-553.132.1.el8_10
  • kernel Rocky Linux 9 5.14.0-687.12.1.el9_8

rocky linux advisories RXSA-2026:25121RLSA-2026:25120RLSA-2026:25121RLSA-2026:21556

  • kernel Azure Linux 3.0 6.6.121.1-1

azure linux advisories AZL-73081

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-2025-68366 updated cvss 7.1

kernel: nbd: defer config unlock in nbd_genl_connect

  • 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
    affected: no fix available
  • Red Hat CodeReady Linux Builder EUS (v.9.4) libperf 5.14.0-427.127.1.el9_4, kernel-debuginfo-common-s390x 5.14.0-427.127.1.el9_4, kernel-debuginfo-common-x86_64 5.14.0-427.127.1.el9_4, kernel-debuginfo-common-aarch64 5.14.0-427.127.1.el9_4, kernel-debuginfo-common-ppc64le 5.14.0-427.127.1.el9_4
    fixed: vendor fix RHSA-2026:21209
  • Red Hat CodeReady Linux Builder EUS (v.9.6) libperf 5.14.0-570.119.1.el9_6, kernel-debuginfo-common-s390x 5.14.0-570.119.1.el9_6, kernel-debuginfo-common-x86_64 5.14.0-570.119.1.el9_6, kernel-debuginfo-common-aarch64 5.14.0-570.119.1.el9_6, kernel-debuginfo-common-ppc64le 5.14.0-570.119.1.el9_6
    fixed: vendor fix RHSA-2026:23224
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-687.12.1.el9_8, perf 5.14.0-687.12.1.el9_8, rtla 5.14.0-687.12.1.el9_8, python3-perf 5.14.0-687.12.1.el9_8, kernel-devel-matched 5.14.0-687.12.1.el9_8, kernel-64k-devel-matched 5.14.0-687.12.1.el9_8, +7 more
    fixed: vendor fix RHSA-2026:21556
  • Red Hat Enterprise Linux AppStream (v. 10) rv 6.12.0-211.20.1.el10_2, perf 6.12.0-211.20.1.el10_2, rtla 6.12.0-211.20.1.el10_2, python3-perf 6.12.0-211.20.1.el10_2, kernel-devel-matched 6.12.0-211.20.1.el10_2, kernel-64k-devel-matched 6.12.0-211.20.1.el10_2, +7 more
    fixed: vendor fix RHSA-2026:23329
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) perf 5.14.0-284.176.1.el9_2, rtla 5.14.0-284.176.1.el9_2, kernel-devel-matched 5.14.0-284.176.1.el9_2, kernel-64k-devel-matched 5.14.0-284.176.1.el9_2, kernel-debug-devel-matched 5.14.0-284.176.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.176.1.el9_2, +5 more
    fixed: vendor fix RHSA-2026:26515
  • Red Hat Enterprise Linux AppStream EUS (v. 10.0) rv 6.12.0-55.77.1.el10_0, perf 6.12.0-55.77.1.el10_0, rtla 6.12.0-55.77.1.el10_0, python3-perf 6.12.0-55.77.1.el10_0, kernel-devel-matched 6.12.0-55.77.1.el10_0, kernel-64k-devel-matched 6.12.0-55.77.1.el10_0, +7 more
    fixed: vendor fix RHSA-2026:24343
  • Red Hat Enterprise Linux AppStream EUS (v.9.4) rv 5.14.0-427.127.1.el9_4, perf 5.14.0-427.127.1.el9_4, rtla 5.14.0-427.127.1.el9_4, kernel-devel-matched 5.14.0-427.127.1.el9_4, kernel-64k-devel-matched 5.14.0-427.127.1.el9_4, kernel-debug-devel-matched 5.14.0-427.127.1.el9_4, +6 more
    fixed: vendor fix RHSA-2026:21209
show 32 more
  • Red Hat Enterprise Linux AppStream EUS (v.9.6) rv 5.14.0-570.119.1.el9_6, perf 5.14.0-570.119.1.el9_6, rtla 5.14.0-570.119.1.el9_6, python3-perf 5.14.0-570.119.1.el9_6, kernel-devel-matched 5.14.0-570.119.1.el9_6, kernel-64k-devel-matched 5.14.0-570.119.1.el9_6, +7 more
    fixed: vendor fix RHSA-2026:23224
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.132.1.el8_10, kernel 4.18.0-553.132.1.el8_10, bpftool 4.18.0-553.132.1.el8_10, kernel-core 4.18.0-553.132.1.el8_10, kernel-tools 4.18.0-553.132.1.el8_10, python3-perf 4.18.0-553.132.1.el8_10, +15 more
    fixed: vendor fix RHSA-2026:25121
  • Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-687.12.1.el9_8, kernel-64k 5.14.0-687.12.1.el9_8, kernel-core 5.14.0-687.12.1.el9_8, kernel-tools 5.14.0-687.12.1.el9_8, kernel-modules 5.14.0-687.12.1.el9_8, kernel-64k-core 5.14.0-687.12.1.el9_8, +27 more
    fixed: vendor fix RHSA-2026:21556
  • Red Hat Enterprise Linux BaseOS (v. 10) kernel 6.12.0-211.20.1.el10_2, kernel-64k 6.12.0-211.20.1.el10_2, kernel-core 6.12.0-211.20.1.el10_2, kernel-tools 6.12.0-211.20.1.el10_2, kernel-modules 6.12.0-211.20.1.el10_2, kernel-64k-core 6.12.0-211.20.1.el10_2, +28 more
    fixed: vendor fix RHSA-2026:23329
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) perf 4.18.0-305.194.1.el8_4, kernel 4.18.0-305.194.1.el8_4, bpftool 4.18.0-305.194.1.el8_4, kernel-core 4.18.0-305.194.1.el8_4, kernel-tools 4.18.0-305.194.1.el8_4, python3-perf 4.18.0-305.194.1.el8_4, +8 more
    fixed: vendor fix RHSA-2026:26535
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) perf 4.18.0-372.195.1.el8_6, kernel 4.18.0-372.195.1.el8_6, bpftool 4.18.0-372.195.1.el8_6, kernel-core 4.18.0-372.195.1.el8_6, kernel-tools 4.18.0-372.195.1.el8_6, python3-perf 4.18.0-372.195.1.el8_6, +8 more
    fixed: vendor fix RHSA-2026:25533
  • Red Hat Enterprise Linux BaseOS E4S (v.8.8) perf 4.18.0-477.147.1.el8_8, kernel 4.18.0-477.147.1.el8_8, bpftool 4.18.0-477.147.1.el8_8, kernel-core 4.18.0-477.147.1.el8_8, kernel-tools 4.18.0-477.147.1.el8_8, python3-perf 4.18.0-477.147.1.el8_8, +9 more
    fixed: vendor fix RHSA-2026:26563
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool 7.0.0-284.176.1.el9_2, kernel 5.14.0-284.176.1.el9_2, kernel-64k 5.14.0-284.176.1.el9_2, kernel-core 5.14.0-284.176.1.el9_2, kernel-tools 5.14.0-284.176.1.el9_2, python3-perf 5.14.0-284.176.1.el9_2, +28 more
    fixed: vendor fix RHSA-2026:26515
  • Red Hat Enterprise Linux BaseOS EUS (v. 10.0) kernel 6.12.0-55.77.1.el10_0, kernel-64k 6.12.0-55.77.1.el10_0, kernel-core 6.12.0-55.77.1.el10_0, kernel-tools 6.12.0-55.77.1.el10_0, kernel-modules 6.12.0-55.77.1.el10_0, kernel-64k-core 6.12.0-55.77.1.el10_0, +27 more
    fixed: vendor fix RHSA-2026:24343
  • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool 7.3.0-427.127.1.el9_4, kernel 5.14.0-427.127.1.el9_4, kernel-64k 5.14.0-427.127.1.el9_4, kernel-core 5.14.0-427.127.1.el9_4, kernel-tools 5.14.0-427.127.1.el9_4, python3-perf 5.14.0-427.127.1.el9_4, +28 more
    fixed: vendor fix RHSA-2026:21209
  • Red Hat Enterprise Linux BaseOS EUS (v.9.6) kernel 5.14.0-570.119.1.el9_6, kernel-64k 5.14.0-570.119.1.el9_6, kernel-core 5.14.0-570.119.1.el9_6, kernel-tools 5.14.0-570.119.1.el9_6, kernel-modules 5.14.0-570.119.1.el9_6, kernel-64k-core 5.14.0-570.119.1.el9_6, +27 more
    fixed: vendor fix RHSA-2026:23224
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) perf 4.18.0-305.194.1.el8_4, kernel 4.18.0-305.194.1.el8_4, bpftool 4.18.0-305.194.1.el8_4, kernel-core 4.18.0-305.194.1.el8_4, kernel-tools 4.18.0-305.194.1.el8_4, python3-perf 4.18.0-305.194.1.el8_4, +8 more
    fixed: vendor fix RHSA-2026:26535
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6) perf 4.18.0-372.195.1.el8_6, kernel 4.18.0-372.195.1.el8_6, bpftool 4.18.0-372.195.1.el8_6, kernel-core 4.18.0-372.195.1.el8_6, kernel-tools 4.18.0-372.195.1.el8_6, python3-perf 4.18.0-372.195.1.el8_6, +8 more
    fixed: vendor fix RHSA-2026:25533
  • Red Hat Enterprise Linux BaseOS TUS (v.8.8) perf 4.18.0-477.147.1.el8_8, kernel 4.18.0-477.147.1.el8_8, bpftool 4.18.0-477.147.1.el8_8, kernel-core 4.18.0-477.147.1.el8_8, kernel-tools 4.18.0-477.147.1.el8_8, python3-perf 4.18.0-477.147.1.el8_8, +8 more
    fixed: vendor fix RHSA-2026:26563
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libperf 5.14.0-687.12.1.el9_8, kernel-debuginfo-common-s390x 5.14.0-687.12.1.el9_8, kernel-debuginfo-common-x86_64 5.14.0-687.12.1.el9_8, kernel-debuginfo-common-aarch64 5.14.0-687.12.1.el9_8, kernel-debuginfo-common-ppc64le 5.14.0-687.12.1.el9_8
    fixed: vendor fix RHSA-2026:21556
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libperf 6.12.0-211.20.1.el10_2, kernel-debuginfo-common-s390x 6.12.0-211.20.1.el10_2, kernel-debuginfo-common-x86_64 6.12.0-211.20.1.el10_2, kernel-debuginfo-common-aarch64 6.12.0-211.20.1.el10_2, kernel-debuginfo-common-ppc64le 6.12.0-211.20.1.el10_2
    fixed: vendor fix RHSA-2026:23329
  • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) libperf 6.12.0-55.77.1.el10_0, kernel-debuginfo-common-s390x 6.12.0-55.77.1.el10_0, kernel-debuginfo-common-x86_64 6.12.0-55.77.1.el10_0, kernel-debuginfo-common-aarch64 6.12.0-55.77.1.el10_0, kernel-debuginfo-common-ppc64le 6.12.0-55.77.1.el10_0
    fixed: vendor fix RHSA-2026:24343
  • Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.132.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.132.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.132.1.el8_10
    fixed: vendor fix RHSA-2026:25121
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.132.1.rt7.473.el8_10, kernel-rt-kvm 4.18.0-553.132.1.rt7.473.el8_10, kernel-rt-core 4.18.0-553.132.1.rt7.473.el8_10, kernel-rt-modules 4.18.0-553.132.1.rt7.473.el8_10, kernel-rt-debug-kvm 4.18.0-553.132.1.rt7.473.el8_10, kernel-rt-debug-core 4.18.0-553.132.1.rt7.473.el8_10, +4 more
    fixed: vendor fix RHSA-2026:25120
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-687.12.1.el9_8, kernel-rt-64k 5.14.0-687.12.1.el9_8, kernel-rt-core 5.14.0-687.12.1.el9_8, kernel-rt-modules 5.14.0-687.12.1.el9_8, kernel-rt-64k-core 5.14.0-687.12.1.el9_8, kernel-rt-debug-core 5.14.0-687.12.1.el9_8, +14 more
    fixed: vendor fix RHSA-2026:21556
  • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt 6.12.0-211.20.1.el10_2, kernel-rt-64k 6.12.0-211.20.1.el10_2, kernel-rt-core 6.12.0-211.20.1.el10_2, kernel-rt-modules 6.12.0-211.20.1.el10_2, kernel-rt-64k-core 6.12.0-211.20.1.el10_2, kernel-rt-debug-core 6.12.0-211.20.1.el10_2, +14 more
    fixed: vendor fix RHSA-2026:23329
  • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt 5.14.0-284.176.1.rt14.461.el9_2, kernel-rt-core 5.14.0-284.176.1.rt14.461.el9_2, kernel-rt-modules 5.14.0-284.176.1.rt14.461.el9_2, kernel-rt-debug-core 5.14.0-284.176.1.rt14.461.el9_2, kernel-rt-modules-core 5.14.0-284.176.1.rt14.461.el9_2, kernel-rt-debug-modules 5.14.0-284.176.1.rt14.461.el9_2, +4 more
    fixed: vendor fix RHSA-2026:26462
  • Red Hat Enterprise Linux Real Time EUS (v. 10.0) kernel-rt 6.12.0-55.77.1.el10_0, kernel-rt-64k 6.12.0-55.77.1.el10_0, kernel-rt-core 6.12.0-55.77.1.el10_0, kernel-rt-modules 6.12.0-55.77.1.el10_0, kernel-rt-64k-core 6.12.0-55.77.1.el10_0, kernel-rt-debug-core 6.12.0-55.77.1.el10_0, +14 more
    fixed: vendor fix RHSA-2026:24343
  • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt 5.14.0-427.127.1.el9_4, kernel-rt-core 5.14.0-427.127.1.el9_4, kernel-rt-modules 5.14.0-427.127.1.el9_4, kernel-rt-debug-core 5.14.0-427.127.1.el9_4, kernel-rt-modules-core 5.14.0-427.127.1.el9_4, kernel-rt-debug-modules 5.14.0-427.127.1.el9_4, +4 more
    fixed: vendor fix RHSA-2026:21209
  • Red Hat Enterprise Linux Real Time EUS (v.9.6) kernel-rt 5.14.0-570.119.1.el9_6, kernel-rt-64k 5.14.0-570.119.1.el9_6, kernel-rt-core 5.14.0-570.119.1.el9_6, kernel-rt-modules 5.14.0-570.119.1.el9_6, kernel-rt-64k-core 5.14.0-570.119.1.el9_6, kernel-rt-debug-core 5.14.0-570.119.1.el9_6, +14 more
    fixed: vendor fix RHSA-2026:23224
  • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-687.12.1.el9_8, kernel-rt-core 5.14.0-687.12.1.el9_8, kernel-rt-modules 5.14.0-687.12.1.el9_8, kernel-rt-debug-core 5.14.0-687.12.1.el9_8, kernel-rt-modules-core 5.14.0-687.12.1.el9_8, kernel-rt-debug-modules 5.14.0-687.12.1.el9_8, +4 more
    fixed: vendor fix RHSA-2026:21556
  • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt 6.12.0-211.20.1.el10_2, kernel-rt-core 6.12.0-211.20.1.el10_2, kernel-rt-modules 6.12.0-211.20.1.el10_2, kernel-rt-debug-core 6.12.0-211.20.1.el10_2, kernel-rt-modules-core 6.12.0-211.20.1.el10_2, kernel-rt-debug-modules 6.12.0-211.20.1.el10_2, +4 more
    fixed: vendor fix RHSA-2026:23329
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt 5.14.0-284.176.1.rt14.461.el9_2, kernel-rt-kvm 5.14.0-284.176.1.rt14.461.el9_2, kernel-rt-core 5.14.0-284.176.1.rt14.461.el9_2, kernel-rt-modules 5.14.0-284.176.1.rt14.461.el9_2, kernel-rt-debug-kvm 5.14.0-284.176.1.rt14.461.el9_2, kernel-rt-debug-core 5.14.0-284.176.1.rt14.461.el9_2, +6 more
    fixed: vendor fix RHSA-2026:26462
  • Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0) kernel-rt 6.12.0-55.77.1.el10_0, kernel-rt-kvm 6.12.0-55.77.1.el10_0, kernel-rt-core 6.12.0-55.77.1.el10_0, kernel-rt-modules 6.12.0-55.77.1.el10_0, kernel-rt-debug-kvm 6.12.0-55.77.1.el10_0, kernel-rt-debug-core 6.12.0-55.77.1.el10_0, +6 more
    fixed: vendor fix RHSA-2026:24343
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt 5.14.0-427.127.1.el9_4, kernel-rt-kvm 5.14.0-427.127.1.el9_4, kernel-rt-core 5.14.0-427.127.1.el9_4, kernel-rt-modules 5.14.0-427.127.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.127.1.el9_4, kernel-rt-debug-core 5.14.0-427.127.1.el9_4, +6 more
    fixed: vendor fix RHSA-2026:21209
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6) kernel-rt 5.14.0-570.119.1.el9_6, kernel-rt-kvm 5.14.0-570.119.1.el9_6, kernel-rt-core 5.14.0-570.119.1.el9_6, kernel-rt-modules 5.14.0-570.119.1.el9_6, kernel-rt-debug-kvm 5.14.0-570.119.1.el9_6, kernel-rt-debug-core 5.14.0-570.119.1.el9_6, +6 more
    fixed: vendor fix RHSA-2026:23224
  • Red Hat Enterprise Linux RT (v. 8) kernel-rt 4.18.0-553.132.1.rt7.473.el8_10, kernel-rt-core 4.18.0-553.132.1.rt7.473.el8_10, kernel-rt-modules 4.18.0-553.132.1.rt7.473.el8_10, kernel-rt-debug-core 4.18.0-553.132.1.rt7.473.el8_10, kernel-rt-debug-modules 4.18.0-553.132.1.rt7.473.el8_10, kernel-rt-modules-extra 4.18.0-553.132.1.rt7.473.el8_10, +2 more
    fixed: vendor fix RHSA-2026:25120

2 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
no
Technical impact
partial
Assessed
4 mo ago

Exploit prediction

0.20% chance of exploitation in the next 30 days, higher than 9% of all scored CVEs (FIRST EPSS, 2026-11-08).

Affected products

  • Linux Linux

Classification

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.