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Fencer Vulns
high 7.8

CVE-2026-23191 json

ALSA: aloop: Fix racy access at PCM trigger

published 2026-02-14 8 mo ago modified 2026-10-19 20 d ago also EUVD-2026-6109

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 2%
public exploits
0
none known

Summary

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

ALSA: aloop: Fix racy access at PCM trigger

The PCM trigger callback of aloop driver tries to check the PCM state and stop the stream of the tied substream in the corresponding cable. Since both check and stop operations are performed outside the cable lock, this may result in UAF when a program attempts to trigger frequently while opening/closing the tied stream, as spotted by fuzzers.

For addressing the UAF, this patch changes two things: - It covers the most of code in loopback_check_format() with cable->lock spinlock, and add the proper NULL checks. This avoids already some racy accesses. - In addition, now we try to check the state of the capture PCM stream that may be stopped in this function, which was the major pain point leading to UAF.

Patch / fix

  • Linux Linux 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.70, 6.18.10, 6.19
  • linux Debian 12 6.1.190-1
  • linux Debian 13 6.12.73-1
  • linux Debian 14 6.18.10-1

debian advisories DEBIAN-CVE-2026-23191

  • linux Ubuntu 22.04 LTS 5.15.0-202.212
  • linux Ubuntu 24.04 LTS 6.8.0-117.117
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1119.126
  • linux-aws Ubuntu 24.04 LTS 6.8.0-1055.58
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1120.130
  • linux-gcp Ubuntu 24.04 LTS 6.8.0-1058.61
  • linux-gke Ubuntu 22.04 LTS 5.15.0-1115.121
  • linux-gke Ubuntu 24.04 LTS 6.8.0-1054.60

ubuntu advisories UBUNTU-CVE-2026-23191

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 4.18.0-553.120.1.el8_10
  • perf RHEL 8 4.18.0-553.120.1.el8_10
  • bpftool RHEL 8 4.18.0-553.120.1.el8_10
  • kernel-core RHEL 8 4.18.0-553.120.1.el8_10
  • kernel-tools RHEL 8 4.18.0-553.120.1.el8_10
  • python3-perf RHEL 8 4.18.0-553.120.1.el8_10
  • kernel-modules RHEL 8 4.18.0-553.120.1.el8_10
  • kernel-zfcpdump RHEL 8 4.18.0-553.120.1.el8_10

red hat advisories RHSA-2026:34094RHSA-2026:26535RHSA-2026:19521RHSA-2026:14925RHSA-2026:14869RHSA-2026:14230

  • kernel-rt SLE Micro 5.4, SLE Micro 5.3 5.14.21-150400.15.145.1
  • kernel-source-rt SLE Micro 5.4, SLE Micro 5.3 5.14.21-150400.15.145.1
  • kernel-64kb SLE Module for Basesystem 15 SP7 6.4.0-150700.53.34.1
  • kernel-syms SLE Module for Development Tools 15 SP7 6.4.0-150700.53.34.1
  • kernel-azure SLE Module for Public Cloud 15 SP7 6.4.0-150700.53.34.1
  • kernel-source SLE Module for Development Tools 15 SP7, SLE Module for Basesystem 15 SP7 6.4.0-150700.53.34.1
  • kernel-default SLE Workstation Extension 15 SP7, SLE Module for Legacy 15 SP7, SLE Module for Basesystem 15 SP7 +2 more 6.4.0-150700.53.34.1
  • kernel-zfcpdump SLE Module for Basesystem 15 SP7 6.4.0-150700.53.34.1

suse advisories SUSE-SU-2026:1611-1SUSE-SU-2026:1592-1SUSE-SU-2026:1584-1SUSE-SU-2026:1578-1SUSE-SU-2026:1560-1SUSE-SU-2026:1537-1

  • kernel-rt openSUSE Leap 16.0 6.12.0-160000.27.1
  • dtb-aarch64 openSUSE Leap 16.0 6.12.0-160000.27.1
  • kernel-64kb openSUSE Leap 16.0 6.12.0-160000.27.1
  • kernel-syms openSUSE Leap 16.0 6.12.0-160000.27.1
  • kernel-azure openSUSE Leap 16.0 6.12.0-160000.27.1
  • kernel-obs-qa openSUSE Leap 16.0 6.12.0-160000.27.1
  • kernel-source openSUSE Leap 16.0 6.12.0-160000.27.1
  • kernel-default openSUSE Leap 16.0 6.12.0-160000.27.1

opensuse advisories openSUSE-SU-2026:20416-1

  • kernel AlmaLinux 8 4.18.0-553.120.1.el8_10
  • perf AlmaLinux 8 4.18.0-553.120.1.el8_10
  • bpftool AlmaLinux 8 4.18.0-553.120.1.el8_10
  • kernel-core AlmaLinux 8 4.18.0-553.120.1.el8_10
  • kernel-tools AlmaLinux 8 4.18.0-553.120.1.el8_10
  • python3-perf AlmaLinux 8 4.18.0-553.120.1.el8_10
  • kernel-modules AlmaLinux 8 4.18.0-553.120.1.el8_10
  • kernel-zfcpdump AlmaLinux 8 4.18.0-553.120.1.el8_10

almalinux advisories ALSA-2026:9131ALSA-2026:9135ALSA-2026:6632ALSA-2026:6153

  • kernel-rt Rocky Linux 8 4.18.0-553.120.1.rt7.461.el8_10
  • kernel Rocky Linux 8 4.18.0-553.120.1.el8_10
  • kernel Rocky Linux 10 6.12.0-124.49.1.el10_1
  • kernel Rocky Linux 9 5.14.0-611.45.1.el9_7

rocky linux advisories RLSA-2026:9135RLSA-2026:9131RLSA-2026:6632RLSA-2026:6153

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-2026-23191 updated cvss 7.1

kernel: ALSA: aloop: Fix racy access at PCM trigger

  • 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 5.14.0-427.124.1.el9_4, kernel-debuginfo-common-s390x 5.14.0-427.124.1.el9_4, kernel-debuginfo-common-x86_64 5.14.0-427.124.1.el9_4, kernel-debuginfo-common-aarch64 5.14.0-427.124.1.el9_4, kernel-debuginfo-common-ppc64le 5.14.0-427.124.1.el9_4
    fixed: vendor fix RHSA-2026:13932
  • Red Hat CodeReady Linux Builder EUS (v.9.6) libperf 5.14.0-570.125.1.el9_6, kernel-debuginfo-common-s390x 5.14.0-570.125.1.el9_6, kernel-debuginfo-common-x86_64 5.14.0-570.125.1.el9_6, kernel-debuginfo-common-aarch64 5.14.0-570.125.1.el9_6, kernel-debuginfo-common-ppc64le 5.14.0-570.125.1.el9_6
    fixed: vendor fix RHSA-2026:34094
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-611.45.1.el9_7, perf 5.14.0-611.45.1.el9_7, rtla 5.14.0-611.45.1.el9_7, python3-perf 5.14.0-611.45.1.el9_7, kernel-devel-matched 5.14.0-611.45.1.el9_7, kernel-64k-devel-matched 5.14.0-611.45.1.el9_7, +7 more
    fixed: vendor fix RHSA-2026:6153
  • Red Hat Enterprise Linux AppStream (v. 10) rv 6.12.0-124.49.1.el10_1, perf 6.12.0-124.49.1.el10_1, rtla 6.12.0-124.49.1.el10_1, python3-perf 6.12.0-124.49.1.el10_1, kernel-devel-matched 6.12.0-124.49.1.el10_1, kernel-64k-devel-matched 6.12.0-124.49.1.el10_1, +7 more
    fixed: vendor fix RHSA-2026:6632
  • Red Hat Enterprise Linux AppStream E4S (v.9.0) perf 5.14.0-70.178.1.el9_0, kernel-devel-matched 5.14.0-70.178.1.el9_0, kernel-debug-devel-matched 5.14.0-70.178.1.el9_0, kernel-debuginfo-common-s390x 5.14.0-70.178.1.el9_0, kernel-zfcpdump-devel-matched 5.14.0-70.178.1.el9_0, kernel-debuginfo-common-x86_64 5.14.0-70.178.1.el9_0, +2 more
    fixed: vendor fix RHSA-2026:13936
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) perf 5.14.0-284.169.1.el9_2, rtla 5.14.0-284.169.1.el9_2, kernel-devel-matched 5.14.0-284.169.1.el9_2, kernel-64k-devel-matched 5.14.0-284.169.1.el9_2, kernel-debug-devel-matched 5.14.0-284.169.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.169.1.el9_2, +5 more
    fixed: vendor fix RHSA-2026:13734
  • Red Hat Enterprise Linux AppStream EUS (v.9.4) rv 5.14.0-427.124.1.el9_4, perf 5.14.0-427.124.1.el9_4, rtla 5.14.0-427.124.1.el9_4, kernel-devel-matched 5.14.0-427.124.1.el9_4, kernel-64k-devel-matched 5.14.0-427.124.1.el9_4, kernel-debug-devel-matched 5.14.0-427.124.1.el9_4, +6 more
    fixed: vendor fix RHSA-2026:13932
show 31 more
  • Red Hat Enterprise Linux AppStream EUS (v.9.6) rv 5.14.0-570.125.1.el9_6, perf 5.14.0-570.125.1.el9_6, rtla 5.14.0-570.125.1.el9_6, python3-perf 5.14.0-570.125.1.el9_6, kernel-devel-matched 5.14.0-570.125.1.el9_6, kernel-64k-devel-matched 5.14.0-570.125.1.el9_6, +7 more
    fixed: vendor fix RHSA-2026:34094
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.120.1.el8_10, kernel 4.18.0-553.120.1.el8_10, bpftool 4.18.0-553.120.1.el8_10, kernel-core 4.18.0-553.120.1.el8_10, kernel-tools 4.18.0-553.120.1.el8_10, python3-perf 4.18.0-553.120.1.el8_10, +15 more
    fixed: vendor fix RHSA-2026:9131
  • Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-611.45.1.el9_7, kernel-64k 5.14.0-611.45.1.el9_7, kernel-core 5.14.0-611.45.1.el9_7, kernel-tools 5.14.0-611.45.1.el9_7, kernel-modules 5.14.0-611.45.1.el9_7, kernel-64k-core 5.14.0-611.45.1.el9_7, +27 more
    fixed: vendor fix RHSA-2026:6153
  • Red Hat Enterprise Linux BaseOS (v. 10) kernel 6.12.0-124.49.1.el10_1, kernel-64k 6.12.0-124.49.1.el10_1, kernel-core 6.12.0-124.49.1.el10_1, kernel-tools 6.12.0-124.49.1.el10_1, kernel-modules 6.12.0-124.49.1.el10_1, kernel-64k-core 6.12.0-124.49.1.el10_1, +28 more
    fixed: vendor fix RHSA-2026:6632
  • 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 4.18.0-372.191.1.el8_6, kernel 4.18.0-372.191.1.el8_6, bpftool 4.18.0-372.191.1.el8_6, kernel-core 4.18.0-372.191.1.el8_6, kernel-tools 4.18.0-372.191.1.el8_6, python3-perf 4.18.0-372.191.1.el8_6, +8 more Red Hat Enterprise Linux BaseOS E4S (v.8.6) perf 4.18.0-372.191.1.el8_6, kernel 4.18.0-372.191.1.el8_6, bpftool 4.18.0-372.191.1.el8_6, kernel-core 4.18.0-372.191.1.el8_6, kernel-tools 4.18.0-372.191.1.el8_6, python3-perf 4.18.0-372.191.1.el8_6, +15 more
    fixed: vendor fix RHSA-2026:14230
  • Red Hat Enterprise Linux BaseOS E4S (v.8.8) perf 4.18.0-477.143.1.el8_8, kernel 4.18.0-477.143.1.el8_8, bpftool 4.18.0-477.143.1.el8_8, kernel-core 4.18.0-477.143.1.el8_8, kernel-tools 4.18.0-477.143.1.el8_8, python3-perf 4.18.0-477.143.1.el8_8, +9 more
    fixed: vendor fix RHSA-2026:19521
  • Red Hat Enterprise Linux BaseOS E4S (v.9.0) kernel 5.14.0-70.178.1.el9_0, bpftool 5.14.0-70.178.1.el9_0, kernel-core 5.14.0-70.178.1.el9_0, kernel-tools 5.14.0-70.178.1.el9_0, python3-perf 5.14.0-70.178.1.el9_0, kernel-modules 5.14.0-70.178.1.el9_0, +14 more
    fixed: vendor fix RHSA-2026:13936
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool 7.0.0-284.169.1.el9_2, kernel 5.14.0-284.169.1.el9_2, kernel-64k 5.14.0-284.169.1.el9_2, kernel-core 5.14.0-284.169.1.el9_2, kernel-tools 5.14.0-284.169.1.el9_2, python3-perf 5.14.0-284.169.1.el9_2, +28 more
    fixed: vendor fix RHSA-2026:13734
  • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool 7.3.0-427.124.1.el9_4, kernel 5.14.0-427.124.1.el9_4, kernel-64k 5.14.0-427.124.1.el9_4, kernel-core 5.14.0-427.124.1.el9_4, kernel-tools 5.14.0-427.124.1.el9_4, python3-perf 5.14.0-427.124.1.el9_4, +28 more
    fixed: vendor fix RHSA-2026:13932
  • Red Hat Enterprise Linux BaseOS EUS (v.9.6) kernel 5.14.0-570.125.1.el9_6, kernel-64k 5.14.0-570.125.1.el9_6, kernel-core 5.14.0-570.125.1.el9_6, kernel-tools 5.14.0-570.125.1.el9_6, kernel-modules 5.14.0-570.125.1.el9_6, kernel-64k-core 5.14.0-570.125.1.el9_6, +27 more
    fixed: vendor fix RHSA-2026:34094
  • 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 TUS (v.8.6) perf 4.18.0-372.191.1.el8_6, kernel 4.18.0-372.191.1.el8_6, bpftool 4.18.0-372.191.1.el8_6, kernel-core 4.18.0-372.191.1.el8_6, kernel-tools 4.18.0-372.191.1.el8_6, python3-perf 4.18.0-372.191.1.el8_6, +8 more
    fixed: vendor fix RHSA-2026:14230
  • Red Hat Enterprise Linux BaseOS TUS (v.8.8) perf 4.18.0-477.143.1.el8_8, kernel 4.18.0-477.143.1.el8_8, bpftool 4.18.0-477.143.1.el8_8, kernel-core 4.18.0-477.143.1.el8_8, kernel-tools 4.18.0-477.143.1.el8_8, python3-perf 4.18.0-477.143.1.el8_8, +8 more
    fixed: vendor fix RHSA-2026:19521
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libperf 5.14.0-611.45.1.el9_7, kernel-debuginfo-common-s390x 5.14.0-611.45.1.el9_7, kernel-debuginfo-common-x86_64 5.14.0-611.45.1.el9_7, kernel-debuginfo-common-aarch64 5.14.0-611.45.1.el9_7, kernel-debuginfo-common-ppc64le 5.14.0-611.45.1.el9_7
    fixed: vendor fix RHSA-2026:6153
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libperf 6.12.0-124.49.1.el10_1, kernel-debuginfo-common-s390x 6.12.0-124.49.1.el10_1, kernel-debuginfo-common-x86_64 6.12.0-124.49.1.el10_1, kernel-debuginfo-common-aarch64 6.12.0-124.49.1.el10_1, kernel-debuginfo-common-ppc64le 6.12.0-124.49.1.el10_1
    fixed: vendor fix RHSA-2026:6632
  • Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.120.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.120.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.120.1.el8_10
    fixed: vendor fix RHSA-2026:9131
  • Red Hat Enterprise Linux for Real Time (v. 7 ELS) kernel-rt 3.10.0-1160.149.1.rt56.1301.el7, kernel-rt-trace 3.10.0-1160.149.1.rt56.1301.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1160.149.1.rt56.1301.el7
    fixed: vendor fix RHSA-2026:14869
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.120.1.rt7.461.el8_10, kernel-rt-kvm 4.18.0-553.120.1.rt7.461.el8_10, kernel-rt-core 4.18.0-553.120.1.rt7.461.el8_10, kernel-rt-modules 4.18.0-553.120.1.rt7.461.el8_10, kernel-rt-debug-kvm 4.18.0-553.120.1.rt7.461.el8_10, kernel-rt-debug-core 4.18.0-553.120.1.rt7.461.el8_10, +4 more
    fixed: vendor fix RHSA-2026:9135
  • Red Hat Enterprise Linux NFV E4S (v.9.0) kernel-rt 5.14.0-70.178.1.rt21.250.el9_0, kernel-rt-kvm 5.14.0-70.178.1.rt21.250.el9_0, kernel-rt-core 5.14.0-70.178.1.rt21.250.el9_0, kernel-rt-modules 5.14.0-70.178.1.rt21.250.el9_0, kernel-rt-debug-kvm 5.14.0-70.178.1.rt21.250.el9_0, kernel-rt-debug-core 5.14.0-70.178.1.rt21.250.el9_0, +4 more
    fixed: vendor fix RHSA-2026:14137
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-611.45.1.el9_7, kernel-rt-64k 5.14.0-611.45.1.el9_7, kernel-rt-core 5.14.0-611.45.1.el9_7, kernel-rt-modules 5.14.0-611.45.1.el9_7, kernel-rt-64k-core 5.14.0-611.45.1.el9_7, kernel-rt-debug-core 5.14.0-611.45.1.el9_7, +14 more
    fixed: vendor fix RHSA-2026:6153
  • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt 6.12.0-124.49.1.el10_1, kernel-rt-64k 6.12.0-124.49.1.el10_1, kernel-rt-core 6.12.0-124.49.1.el10_1, kernel-rt-modules 6.12.0-124.49.1.el10_1, kernel-rt-64k-core 6.12.0-124.49.1.el10_1, kernel-rt-debug-core 6.12.0-124.49.1.el10_1, +14 more
    fixed: vendor fix RHSA-2026:6632
  • Red Hat Enterprise Linux Real Time E4S (v.9.0) kernel-rt 5.14.0-70.178.1.rt21.250.el9_0, kernel-rt-core 5.14.0-70.178.1.rt21.250.el9_0, kernel-rt-modules 5.14.0-70.178.1.rt21.250.el9_0, kernel-rt-debug-core 5.14.0-70.178.1.rt21.250.el9_0, kernel-rt-debug-modules 5.14.0-70.178.1.rt21.250.el9_0, kernel-rt-modules-extra 5.14.0-70.178.1.rt21.250.el9_0, +2 more
    fixed: vendor fix RHSA-2026:14137
  • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt 5.14.0-284.169.1.rt14.454.el9_2, kernel-rt-core 5.14.0-284.169.1.rt14.454.el9_2, kernel-rt-modules 5.14.0-284.169.1.rt14.454.el9_2, kernel-rt-debug-core 5.14.0-284.169.1.rt14.454.el9_2, kernel-rt-modules-core 5.14.0-284.169.1.rt14.454.el9_2, kernel-rt-debug-modules 5.14.0-284.169.1.rt14.454.el9_2, +4 more
    fixed: vendor fix RHSA-2026:14301
  • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt 5.14.0-427.124.1.el9_4, kernel-rt-core 5.14.0-427.124.1.el9_4, kernel-rt-modules 5.14.0-427.124.1.el9_4, kernel-rt-debug-core 5.14.0-427.124.1.el9_4, kernel-rt-modules-core 5.14.0-427.124.1.el9_4, kernel-rt-debug-modules 5.14.0-427.124.1.el9_4, +4 more
    fixed: vendor fix RHSA-2026:13932
  • Red Hat Enterprise Linux Real Time EUS (v.9.6) kernel-rt 5.14.0-570.125.1.el9_6, kernel-rt-64k 5.14.0-570.125.1.el9_6, kernel-rt-core 5.14.0-570.125.1.el9_6, kernel-rt-modules 5.14.0-570.125.1.el9_6, kernel-rt-64k-core 5.14.0-570.125.1.el9_6, kernel-rt-debug-core 5.14.0-570.125.1.el9_6, +14 more
    fixed: vendor fix RHSA-2026:34094
  • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-611.45.1.el9_7, kernel-rt-core 5.14.0-611.45.1.el9_7, kernel-rt-modules 5.14.0-611.45.1.el9_7, kernel-rt-debug-core 5.14.0-611.45.1.el9_7, kernel-rt-modules-core 5.14.0-611.45.1.el9_7, kernel-rt-debug-modules 5.14.0-611.45.1.el9_7, +4 more
    fixed: vendor fix RHSA-2026:6153
  • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt 6.12.0-124.49.1.el10_1, kernel-rt-core 6.12.0-124.49.1.el10_1, kernel-rt-modules 6.12.0-124.49.1.el10_1, kernel-rt-debug-core 6.12.0-124.49.1.el10_1, kernel-rt-modules-core 6.12.0-124.49.1.el10_1, kernel-rt-debug-modules 6.12.0-124.49.1.el10_1, +4 more
    fixed: vendor fix RHSA-2026:6632
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt 5.14.0-284.169.1.rt14.454.el9_2, kernel-rt-kvm 5.14.0-284.169.1.rt14.454.el9_2, kernel-rt-core 5.14.0-284.169.1.rt14.454.el9_2, kernel-rt-modules 5.14.0-284.169.1.rt14.454.el9_2, kernel-rt-debug-kvm 5.14.0-284.169.1.rt14.454.el9_2, kernel-rt-debug-core 5.14.0-284.169.1.rt14.454.el9_2, +6 more
    fixed: vendor fix RHSA-2026:14301
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt 5.14.0-427.124.1.el9_4, kernel-rt-kvm 5.14.0-427.124.1.el9_4, kernel-rt-core 5.14.0-427.124.1.el9_4, kernel-rt-modules 5.14.0-427.124.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.124.1.el9_4, kernel-rt-debug-core 5.14.0-427.124.1.el9_4, +6 more
    fixed: vendor fix RHSA-2026:13932
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6) kernel-rt 5.14.0-570.125.1.el9_6, kernel-rt-kvm 5.14.0-570.125.1.el9_6, kernel-rt-core 5.14.0-570.125.1.el9_6, kernel-rt-modules 5.14.0-570.125.1.el9_6, kernel-rt-debug-kvm 5.14.0-570.125.1.el9_6, kernel-rt-debug-core 5.14.0-570.125.1.el9_6, +6 more
    fixed: vendor fix RHSA-2026:34094

3 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
no
Technical impact
total
Assessed
4 mo ago

Exploit prediction

0.13% chance of exploitation in the next 30 days, higher than 2% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 7.0 CVSS:3.1/AV:L/AC:H/PR:L/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
  • CWE-416 Use After Free
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.