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Fencer Vulns
critical 9.8

CVE-2026-46135 in the critical feed json

nvmet-tcp: fix race between ICReq handling and queue teardown

published 2026-05-28 5 mo ago modified 2026-10-19 20 d ago also EUVD-2026-32762

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 34%
public exploits
0
none known

Summary

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

nvmet-tcp: fix race between ICReq handling and queue teardown

nvmet_tcp_handle_icreq() updates queue->state after sending an Initialization Connection Response (ICResp), but it does so without serializing against target-side queue teardown.

If an NVMe/TCP host sends an Initialization Connection Request (ICReq) and immediately closes the connection, target-side teardown may start in softirq context before io_work drains the already buffered ICReq. In that case, nvmet_tcp_schedule_release_queue() sets queue->state to NVMET_TCP_Q_DISCONNECTING and drops the queue reference under state_lock.

If io_work later processes that ICReq, nvmet_tcp_handle_icreq() can still overwrite the state back to NVMET_TCP_Q_LIVE. That defeats the DISCONNECTING-state guard in nvmet_tcp_schedule_release_queue() and allows a later socket state change to re-enter teardown and issue a second kref_put() on an already released queue.

The ICResp send failure path has the same problem. If teardown has already moved the queue to DISCONNECTING, a send error can still overwrite the state with NVMET_TCP_Q_FAILED, again reopening the window for a second teardown path to drop the queue reference.

Fix this by serializing both post-send state transitions with state_lock and bailing out if teardown has already started.

Use -ESHUTDOWN as an internal sentinel for that bail-out path rather than propagating it as a transport error like -ECONNRESET. Keep nvmet_tcp_socket_error() setting rcv_state to NVMET_TCP_RECV_ERR before honoring that sentinel so receive-side parsing stays quiesced until the existing release path completes.

Patch / fix

  • Linux Linux 5.10.261, 5.15.212, 6.1.178, 6.6.144, 6.12.88, 6.18.30, 7.0.7, 7.1
  • linux Debian 12 6.1.180-1
  • linux Debian 13 6.12.88-1
  • linux Debian 14 7.0.7-1

debian advisories DEBIAN-CVE-2026-46135

  • linux Ubuntu 22.04 LTS 5.15.0-185.195
  • linux Ubuntu 24.04 LTS 6.8.0-134.134
  • linux Ubuntu 25.10 6.17.0-40.40
  • linux Ubuntu 26.04 LTS 7.0.0-27.27
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1111.118
  • linux-aws Ubuntu 24.04 LTS 6.8.0-1060.63
  • linux-aws Ubuntu 25.10 6.17.0-1019.19
  • linux-aws Ubuntu 26.04 LTS 7.0.0-1008.8

ubuntu advisories UBUNTU-CVE-2026-46135

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 6.12.0-211.28.1.el10_2
  • rv RHEL 10.2 6.12.0-211.28.1.el10_2
  • perf RHEL 10.2 6.12.0-211.28.1.el10_2
  • rtla RHEL 10.2 6.12.0-211.28.1.el10_2
  • libperf RHEL 10.2 6.12.0-211.28.1.el10_2
  • kernel-rt RHEL 10.2 6.12.0-211.28.1.el10_2
  • kernel-64k RHEL 10.2 6.12.0-211.28.1.el10_2
  • kernel-core RHEL 10.2 6.12.0-211.28.1.el10_2

red hat advisories RHSA-2026:47869RHSA-2026:47633RHSA-2026:43231RHSA-2026:40068RHSA-2026:39371RHSA-2026:38902

  • kernel-source Linux Micro 6.0 6.4.0-159998.55.1
  • kernel-default Linux Micro 6.0 6.4.0-159998.55.1
  • kernel-kvmsmall Linux Micro 6.0 6.4.0-159998.55.1
  • kernel-default-base Linux Micro 6.0 6.4.0-159998.55.1.159998.21.42
  • kernel-64kb SLE Module for Basesystem 15 SP7 6.4.0-150700.53.90.1
  • kernel-syms SLE Module for Development Tools 15 SP7 6.4.0-150700.53.90.1
  • kernel-azure SLE Module for Public Cloud 15 SP7 6.4.0-150700.53.90.1
  • kernel-source SLE Module for Development Tools 15 SP7, SLE Module for Basesystem 15 SP7 6.4.0-150700.53.90.1

suse advisories SUSE-SU-2026:24550-1SUSE-SU-2026:5091-1SUSE-SU-2026:4706-1SUSE-SU-2026:4660-1SUSE-SU-2026:4640-1SUSE-SU-2026:24316-1

  • kernel-rt openSUSE Leap 16.0 6.12.0-160000.38.1
  • dtb-aarch64 openSUSE Leap 16.0 6.12.0-160000.38.1
  • kernel-64kb openSUSE Leap 16.0 6.12.0-160000.38.1
  • kernel-syms openSUSE Leap 16.0 6.12.0-160000.38.1
  • kernel-azure openSUSE Leap 16.0 6.12.0-160000.38.1
  • kernel-obs-qa openSUSE Leap 16.0 6.12.0-160000.38.1
  • kernel-source openSUSE Leap 16.0 6.12.0-160000.38.1
  • kernel-default openSUSE Leap 16.0 6.12.0-160000.38.1

opensuse advisories openSUSE-SU-2026:21910-1openSUSE-SU-2026:10954-1

  • kernel AlmaLinux 10 6.12.0-211.28.1.el10_2
  • rv AlmaLinux 10 6.12.0-211.28.1.el10_2
  • perf AlmaLinux 10 6.12.0-211.28.1.el10_2
  • rtla AlmaLinux 10 6.12.0-211.28.1.el10_2
  • libperf AlmaLinux 10 6.12.0-211.28.1.el10_2
  • kernel-rt AlmaLinux 10 6.12.0-211.28.1.el10_2
  • kernel-64k AlmaLinux 10 6.12.0-211.28.1.el10_2
  • kernel-core AlmaLinux 10 6.12.0-211.28.1.el10_2

almalinux advisories ALSA-2026:30129ALSA-2026:27789ALSA-2026:27353ALSA-2026:27354

  • kernel Rocky Linux 10 6.12.0-211.28.1.el10_2
  • kernel Rocky Linux 9 5.14.0-687.17.1.el9_8
  • kernel Rocky Linux 8 4.18.0-553.136.1.el8_10
  • kernel-rt Rocky Linux 8 4.18.0-553.136.1.rt7.477.el8_10

rocky linux advisories RLSA-2026:30129RLSA-2026:27789RLSA-2026:27353RLSA-2026:27354

  • kernel Azure Linux 3.0 6.6.144.1-1

azure linux advisories AZL-88923

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-2026-46135 updated cvss 7.1

kernel: nvmet-tcp: fix race between ICReq handling and queue teardown

  • 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.9.6) libperf 5.14.0-570.127.1.el9_6, kernel-debuginfo-common-s390x 5.14.0-570.127.1.el9_6, kernel-debuginfo-common-x86_64 5.14.0-570.127.1.el9_6, kernel-debuginfo-common-aarch64 5.14.0-570.127.1.el9_6, kernel-debuginfo-common-ppc64le 5.14.0-570.127.1.el9_6
    fixed: vendor fix RHSA-2026:38902
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-687.17.1.el9_8, perf 5.14.0-687.17.1.el9_8, rtla 5.14.0-687.17.1.el9_8, python3-perf 5.14.0-687.17.1.el9_8, kernel-devel-matched 5.14.0-687.17.1.el9_8, kernel-64k-devel-matched 5.14.0-687.17.1.el9_8, +7 more
    fixed: vendor fix RHSA-2026:27789
  • Red Hat Enterprise Linux AppStream (v. 10) rv 6.12.0-211.28.1.el10_2, perf 6.12.0-211.28.1.el10_2, rtla 6.12.0-211.28.1.el10_2, python3-perf 6.12.0-211.28.1.el10_2, kernel-devel-matched 6.12.0-211.28.1.el10_2, kernel-64k-devel-matched 6.12.0-211.28.1.el10_2, +7 more
    fixed: vendor fix RHSA-2026:30129
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) perf 5.14.0-284.179.1.el9_2, rtla 5.14.0-284.179.1.el9_2, kernel-devel-matched 5.14.0-284.179.1.el9_2, kernel-64k-devel-matched 5.14.0-284.179.1.el9_2, kernel-debug-devel-matched 5.14.0-284.179.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.179.1.el9_2, +5 more
    fixed: vendor fix RHSA-2026:36073
  • Red Hat Enterprise Linux AppStream E4S (v.9.4) rv 5.14.0-427.139.1.el9_4, perf 5.14.0-427.139.1.el9_4, rtla 5.14.0-427.139.1.el9_4, kernel-devel-matched 5.14.0-427.139.1.el9_4, kernel-64k-devel-matched 5.14.0-427.139.1.el9_4, kernel-debug-devel-matched 5.14.0-427.139.1.el9_4, +6 more
    fixed: vendor fix RHSA-2026:43231
  • Red Hat Enterprise Linux AppStream EUS (v. 10.0) rv 6.12.0-55.88.1.el10_0, perf 6.12.0-55.88.1.el10_0, rtla 6.12.0-55.88.1.el10_0, python3-perf 6.12.0-55.88.1.el10_0, kernel-devel-matched 6.12.0-55.88.1.el10_0, kernel-64k-devel-matched 6.12.0-55.88.1.el10_0, +7 more
    fixed: vendor fix RHSA-2026:39371
  • Red Hat Enterprise Linux AppStream EUS (v.9.6) rv 5.14.0-570.127.1.el9_6, perf 5.14.0-570.127.1.el9_6, rtla 5.14.0-570.127.1.el9_6, python3-perf 5.14.0-570.127.1.el9_6, kernel-devel-matched 5.14.0-570.127.1.el9_6, kernel-64k-devel-matched 5.14.0-570.127.1.el9_6, +7 more
    fixed: vendor fix RHSA-2026:38902
show 32 more
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.136.1.el8_10, kernel 4.18.0-553.136.1.el8_10, bpftool 4.18.0-553.136.1.el8_10, kernel-core 4.18.0-553.136.1.el8_10, kernel-tools 4.18.0-553.136.1.el8_10, python3-perf 4.18.0-553.136.1.el8_10, +15 more
    fixed: vendor fix RHSA-2026:27353
  • Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-687.17.1.el9_8, kernel-64k 5.14.0-687.17.1.el9_8, kernel-core 5.14.0-687.17.1.el9_8, kernel-tools 5.14.0-687.17.1.el9_8, kernel-modules 5.14.0-687.17.1.el9_8, kernel-64k-core 5.14.0-687.17.1.el9_8, +27 more
    fixed: vendor fix RHSA-2026:27789
  • Red Hat Enterprise Linux BaseOS (v. 10) kernel 6.12.0-211.28.1.el10_2, kernel-64k 6.12.0-211.28.1.el10_2, kernel-core 6.12.0-211.28.1.el10_2, kernel-tools 6.12.0-211.28.1.el10_2, kernel-modules 6.12.0-211.28.1.el10_2, kernel-64k-core 6.12.0-211.28.1.el10_2, +28 more
    fixed: vendor fix RHSA-2026:30129
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) perf 4.18.0-305.199.1.el8_4, kernel 4.18.0-305.199.1.el8_4, bpftool 4.18.0-305.199.1.el8_4, kernel-core 4.18.0-305.199.1.el8_4, kernel-tools 4.18.0-305.199.1.el8_4, python3-perf 4.18.0-305.199.1.el8_4, +8 more
    fixed: vendor fix RHSA-2026:47633
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) perf 4.18.0-372.201.1.el8_6, kernel 4.18.0-372.201.1.el8_6, bpftool 4.18.0-372.201.1.el8_6, kernel-core 4.18.0-372.201.1.el8_6, kernel-tools 4.18.0-372.201.1.el8_6, python3-perf 4.18.0-372.201.1.el8_6, +8 more
    fixed: vendor fix RHSA-2026:40068
  • Red Hat Enterprise Linux BaseOS E4S (v.8.8) perf 4.18.0-477.156.1.el8_8, kernel 4.18.0-477.156.1.el8_8, bpftool 4.18.0-477.156.1.el8_8, kernel-core 4.18.0-477.156.1.el8_8, kernel-tools 4.18.0-477.156.1.el8_8, python3-perf 4.18.0-477.156.1.el8_8, +9 more
    fixed: vendor fix RHSA-2026:47869
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool 7.0.0-284.179.1.el9_2, kernel 5.14.0-284.179.1.el9_2, kernel-64k 5.14.0-284.179.1.el9_2, kernel-core 5.14.0-284.179.1.el9_2, kernel-tools 5.14.0-284.179.1.el9_2, python3-perf 5.14.0-284.179.1.el9_2, +28 more
    fixed: vendor fix RHSA-2026:36073
  • Red Hat Enterprise Linux BaseOS E4S (v.9.4) bpftool 7.3.0-427.139.1.el9_4, kernel 5.14.0-427.139.1.el9_4, kernel-64k 5.14.0-427.139.1.el9_4, kernel-core 5.14.0-427.139.1.el9_4, kernel-tools 5.14.0-427.139.1.el9_4, python3-perf 5.14.0-427.139.1.el9_4, +28 more
    fixed: vendor fix RHSA-2026:43231
  • Red Hat Enterprise Linux BaseOS EUS (v. 10.0) kernel 6.12.0-55.88.1.el10_0, kernel-64k 6.12.0-55.88.1.el10_0, kernel-core 6.12.0-55.88.1.el10_0, kernel-tools 6.12.0-55.88.1.el10_0, kernel-modules 6.12.0-55.88.1.el10_0, kernel-64k-core 6.12.0-55.88.1.el10_0, +27 more
    fixed: vendor fix RHSA-2026:39371
  • Red Hat Enterprise Linux BaseOS EUS (v.9.6) kernel 5.14.0-570.127.1.el9_6, kernel-64k 5.14.0-570.127.1.el9_6, kernel-core 5.14.0-570.127.1.el9_6, kernel-tools 5.14.0-570.127.1.el9_6, kernel-modules 5.14.0-570.127.1.el9_6, kernel-64k-core 5.14.0-570.127.1.el9_6, +27 more
    fixed: vendor fix RHSA-2026:38902
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) perf 4.18.0-305.199.1.el8_4, kernel 4.18.0-305.199.1.el8_4, bpftool 4.18.0-305.199.1.el8_4, kernel-core 4.18.0-305.199.1.el8_4, kernel-tools 4.18.0-305.199.1.el8_4, python3-perf 4.18.0-305.199.1.el8_4, +8 more
    fixed: vendor fix RHSA-2026:47633
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6) perf 4.18.0-372.201.1.el8_6, kernel 4.18.0-372.201.1.el8_6, bpftool 4.18.0-372.201.1.el8_6, kernel-core 4.18.0-372.201.1.el8_6, kernel-tools 4.18.0-372.201.1.el8_6, python3-perf 4.18.0-372.201.1.el8_6, +8 more
    fixed: vendor fix RHSA-2026:40068
  • Red Hat Enterprise Linux BaseOS TUS (v.8.8) perf 4.18.0-477.156.1.el8_8, kernel 4.18.0-477.156.1.el8_8, bpftool 4.18.0-477.156.1.el8_8, kernel-core 4.18.0-477.156.1.el8_8, kernel-tools 4.18.0-477.156.1.el8_8, python3-perf 4.18.0-477.156.1.el8_8, +8 more
    fixed: vendor fix RHSA-2026:47869
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libperf 5.14.0-687.17.1.el9_8, kernel-debuginfo-common-s390x 5.14.0-687.17.1.el9_8, kernel-debuginfo-common-x86_64 5.14.0-687.17.1.el9_8, kernel-debuginfo-common-aarch64 5.14.0-687.17.1.el9_8, kernel-debuginfo-common-ppc64le 5.14.0-687.17.1.el9_8
    fixed: vendor fix RHSA-2026:27789
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libperf 6.12.0-211.28.1.el10_2, kernel-debuginfo-common-s390x 6.12.0-211.28.1.el10_2, kernel-debuginfo-common-x86_64 6.12.0-211.28.1.el10_2, kernel-debuginfo-common-aarch64 6.12.0-211.28.1.el10_2, kernel-debuginfo-common-ppc64le 6.12.0-211.28.1.el10_2
    fixed: vendor fix RHSA-2026:30129
  • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) libperf 6.12.0-55.88.1.el10_0, kernel-debuginfo-common-s390x 6.12.0-55.88.1.el10_0, kernel-debuginfo-common-x86_64 6.12.0-55.88.1.el10_0, kernel-debuginfo-common-aarch64 6.12.0-55.88.1.el10_0, kernel-debuginfo-common-ppc64le 6.12.0-55.88.1.el10_0
    fixed: vendor fix RHSA-2026:39371
  • Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.136.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.136.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.136.1.el8_10
    fixed: vendor fix RHSA-2026:27353
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.136.1.rt7.477.el8_10, kernel-rt-kvm 4.18.0-553.136.1.rt7.477.el8_10, kernel-rt-core 4.18.0-553.136.1.rt7.477.el8_10, kernel-rt-modules 4.18.0-553.136.1.rt7.477.el8_10, kernel-rt-debug-kvm 4.18.0-553.136.1.rt7.477.el8_10, kernel-rt-debug-core 4.18.0-553.136.1.rt7.477.el8_10, +4 more
    fixed: vendor fix RHSA-2026:27354
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-687.17.1.el9_8, kernel-rt-64k 5.14.0-687.17.1.el9_8, kernel-rt-core 5.14.0-687.17.1.el9_8, kernel-rt-modules 5.14.0-687.17.1.el9_8, kernel-rt-64k-core 5.14.0-687.17.1.el9_8, kernel-rt-debug-core 5.14.0-687.17.1.el9_8, +14 more
    fixed: vendor fix RHSA-2026:27789
  • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt 6.12.0-211.28.1.el10_2, kernel-rt-64k 6.12.0-211.28.1.el10_2, kernel-rt-core 6.12.0-211.28.1.el10_2, kernel-rt-modules 6.12.0-211.28.1.el10_2, kernel-rt-64k-core 6.12.0-211.28.1.el10_2, kernel-rt-debug-core 6.12.0-211.28.1.el10_2, +14 more
    fixed: vendor fix RHSA-2026:30129
  • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt 5.14.0-284.179.1.rt14.464.el9_2, kernel-rt-core 5.14.0-284.179.1.rt14.464.el9_2, kernel-rt-modules 5.14.0-284.179.1.rt14.464.el9_2, kernel-rt-debug-core 5.14.0-284.179.1.rt14.464.el9_2, kernel-rt-modules-core 5.14.0-284.179.1.rt14.464.el9_2, kernel-rt-debug-modules 5.14.0-284.179.1.rt14.464.el9_2, +4 more
    fixed: vendor fix RHSA-2026:35904
  • Red Hat Enterprise Linux Real Time E4S (v.9.4) kernel-rt 5.14.0-427.139.1.el9_4, kernel-rt-core 5.14.0-427.139.1.el9_4, kernel-rt-modules 5.14.0-427.139.1.el9_4, kernel-rt-debug-core 5.14.0-427.139.1.el9_4, kernel-rt-modules-core 5.14.0-427.139.1.el9_4, kernel-rt-debug-modules 5.14.0-427.139.1.el9_4, +4 more
    fixed: vendor fix RHSA-2026:43231
  • Red Hat Enterprise Linux Real Time EUS (v. 10.0) kernel-rt 6.12.0-55.88.1.el10_0, kernel-rt-64k 6.12.0-55.88.1.el10_0, kernel-rt-core 6.12.0-55.88.1.el10_0, kernel-rt-modules 6.12.0-55.88.1.el10_0, kernel-rt-64k-core 6.12.0-55.88.1.el10_0, kernel-rt-debug-core 6.12.0-55.88.1.el10_0, +14 more
    fixed: vendor fix RHSA-2026:39371
  • Red Hat Enterprise Linux Real Time EUS (v.9.6) kernel-rt 5.14.0-570.127.1.el9_6, kernel-rt-64k 5.14.0-570.127.1.el9_6, kernel-rt-core 5.14.0-570.127.1.el9_6, kernel-rt-modules 5.14.0-570.127.1.el9_6, kernel-rt-64k-core 5.14.0-570.127.1.el9_6, kernel-rt-debug-core 5.14.0-570.127.1.el9_6, +14 more
    fixed: vendor fix RHSA-2026:38902
  • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-687.17.1.el9_8, kernel-rt-core 5.14.0-687.17.1.el9_8, kernel-rt-modules 5.14.0-687.17.1.el9_8, kernel-rt-debug-core 5.14.0-687.17.1.el9_8, kernel-rt-modules-core 5.14.0-687.17.1.el9_8, kernel-rt-debug-modules 5.14.0-687.17.1.el9_8, +4 more
    fixed: vendor fix RHSA-2026:27789
  • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt 6.12.0-211.28.1.el10_2, kernel-rt-core 6.12.0-211.28.1.el10_2, kernel-rt-modules 6.12.0-211.28.1.el10_2, kernel-rt-debug-core 6.12.0-211.28.1.el10_2, kernel-rt-modules-core 6.12.0-211.28.1.el10_2, kernel-rt-debug-modules 6.12.0-211.28.1.el10_2, +4 more
    fixed: vendor fix RHSA-2026:30129
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt 5.14.0-284.179.1.rt14.464.el9_2, kernel-rt-kvm 5.14.0-284.179.1.rt14.464.el9_2, kernel-rt-core 5.14.0-284.179.1.rt14.464.el9_2, kernel-rt-modules 5.14.0-284.179.1.rt14.464.el9_2, kernel-rt-debug-kvm 5.14.0-284.179.1.rt14.464.el9_2, kernel-rt-debug-core 5.14.0-284.179.1.rt14.464.el9_2, +6 more
    fixed: vendor fix RHSA-2026:35904
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4) kernel-rt 5.14.0-427.139.1.el9_4, kernel-rt-kvm 5.14.0-427.139.1.el9_4, kernel-rt-core 5.14.0-427.139.1.el9_4, kernel-rt-modules 5.14.0-427.139.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.139.1.el9_4, kernel-rt-debug-core 5.14.0-427.139.1.el9_4, +6 more
    fixed: vendor fix RHSA-2026:43231
  • Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0) kernel-rt 6.12.0-55.88.1.el10_0, kernel-rt-kvm 6.12.0-55.88.1.el10_0, kernel-rt-core 6.12.0-55.88.1.el10_0, kernel-rt-modules 6.12.0-55.88.1.el10_0, kernel-rt-debug-kvm 6.12.0-55.88.1.el10_0, kernel-rt-debug-core 6.12.0-55.88.1.el10_0, +6 more
    fixed: vendor fix RHSA-2026:39371
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6) kernel-rt 5.14.0-570.127.1.el9_6, kernel-rt-kvm 5.14.0-570.127.1.el9_6, kernel-rt-core 5.14.0-570.127.1.el9_6, kernel-rt-modules 5.14.0-570.127.1.el9_6, kernel-rt-debug-kvm 5.14.0-570.127.1.el9_6, kernel-rt-debug-core 5.14.0-570.127.1.el9_6, +6 more
    fixed: vendor fix RHSA-2026:38902
  • Red Hat Enterprise Linux RT (v. 8) kernel-rt 4.18.0-553.136.1.rt7.477.el8_10, kernel-rt-core 4.18.0-553.136.1.rt7.477.el8_10, kernel-rt-modules 4.18.0-553.136.1.rt7.477.el8_10, kernel-rt-debug-core 4.18.0-553.136.1.rt7.477.el8_10, kernel-rt-debug-modules 4.18.0-553.136.1.rt7.477.el8_10, kernel-rt-modules-extra 4.18.0-553.136.1.rt7.477.el8_10, +2 more
    fixed: vendor fix RHSA-2026:27354
  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more
    not affected: vulnerable code not present

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
24 d ago

Exploit prediction

0.40% chance of exploitation in the next 30 days, higher than 34% 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
  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization
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.