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critical 9.8

CVE-2025-38211 in the critical feed json

RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction

published 2025-07-04 16 mo ago modified 2026-08-05 3 mo ago also EUVD-2025-20045

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 36%
public exploits
0
none known

Summary

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

RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction

The commit 59c68ac31e15 ("iw_cm: free cm_id resources on the last deref") simplified cm_id resource management by freeing cm_id once all references to the cm_id were removed. The references are removed either upon completion of iw_cm event handlers or when the application destroys the cm_id. This commit introduced the use-after-free condition where cm_id_private object could still be in use by event handler works during the destruction of cm_id. The commit aee2424246f9 ("RDMA/iwcm: Fix a use-after-free related to destroying CM IDs") addressed this use-after- free by flushing all pending works at the cm_id destruction.

However, still another use-after-free possibility remained. It happens with the work objects allocated for each cm_id_priv within alloc_work_entries() during cm_id creation, and subsequently freed in dealloc_work_entries() once all references to the cm_id are removed. If the cm_id's last reference is decremented in the event handler work, the work object for the work itself gets removed, and causes the use- after-free BUG below:

BUG: KASAN: slab-use-after-free in __pwq_activate_work+0x1ff/0x250 Read of size 8 at addr ffff88811f9cf800 by task kworker/u16:1/147091

CPU: 2 UID: 0 PID: 147091 Comm: kworker/u16:1 Not tainted 6.15.0-rc2+ #27 PREEMPT(voluntary) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-3.fc41 04/01/2014 Workqueue: 0x0 (iw_cm_wq) Call Trace: <TASK> dump_stack_lvl+0x6a/0x90 print_report+0x174/0x554 ? __virt_addr_valid+0x208/0x430 ? __pwq_activate_work+0x1ff/0x250 kasan_report+0xae/0x170 ? __pwq_activate_work+0x1ff/0x250 __pwq_activate_work+0x1ff/0x250 pwq_dec_nr_in_flight+0x8c5/0xfb0 process_one_work+0xc11/0x1460 ? __pfx_process_one_work+0x10/0x10 ? assign_work+0x16c/0x240 worker_thread+0x5ef/0xfd0 ? __pfx_worker_thread+0x10/0x10 kthread+0x3b0/0x770 ? __pfx_kthread+0x10/0x10 ? rcu_is_watching+0x11/0xb0 ? _raw_spin_unlock_irq+0x24/0x50 ? rcu_is_watching+0x11/0xb0 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x30/0x70 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30 </TASK>

Allocated by task 147416: kasan_save_stack+0x2c/0x50 kasan_save_track+0x10/0x30 __kasan_kmalloc+0xa6/0xb0 alloc_work_entries+0xa9/0x260 [iw_cm] iw_cm_connect+0x23/0x4a0 [iw_cm] rdma_connect_locked+0xbfd/0x1920 [rdma_cm] nvme_rdma_cm_handler+0x8e5/0x1b60 [nvme_rdma] cma_cm_event_handler+0xae/0x320 [rdma_cm] cma_work_handler+0x106/0x1b0 [rdma_cm] process_one_work+0x84f/0x1460 worker_thread+0x5ef/0xfd0 kthread+0x3b0/0x770 ret_from_fork+0x30/0x70 ret_from_fork_asm+0x1a/0x30

Freed by task 147091: kasan_save_stack+0x2c/0x50 kasan_save_track+0x10/0x30 kasan_save_free_info+0x37/0x60 __kasan_slab_free+0x4b/0x70 kfree+0x13a/0x4b0 dealloc_work_entries+0x125/0x1f0 [iw_cm] iwcm_deref_id+0x6f/0xa0 [iw_cm] cm_work_handler+0x136/0x1ba0 [iw_cm] process_one_work+0x84f/0x1460 worker_thread+0x5ef/0xfd0 kthread+0x3b0/0x770 ret_from_fork+0x30/0x70 ret_from_fork_asm+0x1a/0x30

Last potentially related work creation: kasan_save_stack+0x2c/0x50 kasan_record_aux_stack+0xa3/0xb0 __queue_work+0x2ff/0x1390 queue_work_on+0x67/0xc0 cm_event_handler+0x46a/0x820 [iw_cm] siw_cm_upcall+0x330/0x650 [siw] siw_cm_work_handler+0x6b9/0x2b20 [siw] process_one_work+0x84f/0x1460 worker_thread+0x5ef/0xfd0 kthread+0x3b0/0x770 ret_from_fork+0x30/0x70 ret_from_fork_asm+0x1a/0x30

This BUG is reproducible by repeating the blktests test case nvme/061 for the rdma transport and the siw driver.

To avoid the use-after-free of cm_id_private work objects, ensure that the last reference to the cm_id is decremented not in the event handler works, but in the cm_id destruction context. For that purpose, mo ---truncated---

Patch / fix

  • Linux Linux 5.4.296, 5.10.240, 5.15.186, 6.1.142, 6.6.95, 6.12.35, 6.15.4, 6.16
  • linux Debian 12 6.1.147-1
  • linux Debian 14, Debian 13 6.12.35-1

debian advisories DEBIAN-CVE-2025-38211

  • linux Ubuntu 22.04 LTS 5.15.0-156.166
  • linux Ubuntu 24.04 LTS 6.8.0-100.100
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1092.99
  • linux-aws Ubuntu 24.04 LTS 6.8.0-1046.49
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1092.101
  • linux-gcp Ubuntu 24.04 LTS 6.8.0-1047.50
  • linux-gke Ubuntu 22.04 LTS 5.15.0-1089.95
  • linux-gke Ubuntu 24.04 LTS 6.8.0-1043.48

ubuntu advisories UBUNTU-CVE-2025-38211

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 9 5.14.0-570.39.1.el9_6
  • rv RHEL 9 5.14.0-570.39.1.el9_6
  • perf RHEL 9 5.14.0-570.39.1.el9_6
  • rtla RHEL 9 5.14.0-570.39.1.el9_6
  • libperf RHEL 9 5.14.0-570.39.1.el9_6
  • kernel-rt RHEL 9 5.14.0-570.39.1.el9_6
  • kernel-64k RHEL 9 5.14.0-570.39.1.el9_6
  • kernel-core RHEL 9 5.14.0-570.39.1.el9_6

red hat advisories RHSA-2025:22752RHSA-2025:21667RHSA-2025:18043RHSA-2025:17570RHSA-2025:17192RHSA-2025:17159

  • kernel-rt Linux Micro 6.2 6.12.0-160000.6.1
  • kernel-64kb SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 6.12.0-160000.6.1
  • kernel-source SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 6.12.0-160000.6.1
  • kernel-default SLES 16.0, SLE High Availability Extension 16.0, Linux Micro 6.2 +1 more 6.12.0-160000.6.1
  • kernel-default-base SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 6.12.0-160000.6.1.160000.2.4
  • kernel-syms SLES 16.0, Linux Micro Extras 6.2, SLES for SAP applications 16.0 6.12.0-160000.6.1
  • kernel-obs-qa SLES for SAP applications 16.0, SLES 16.0 6.12.0-160000.6.1
  • kernel-kvmsmall SLES for SAP applications 16.0, SLES 16.0 6.12.0-160000.6.1

suse advisories SUSE-SU-2025:21074-1SUSE-SU-2025:21139-1SUSE-SU-2026:20560-1SUSE-SU-2025:21179-1SUSE-SU-2025:03023-1SUSE-SU-2025:03011-1

  • kernel-rt openSUSE Leap 16.0 6.12.0-160000.6.1
  • dtb-aarch64 openSUSE Leap 16.0 6.12.0-160000.6.1
  • kernel-64kb openSUSE Leap 16.0 6.12.0-160000.6.1
  • kernel-syms openSUSE Leap 16.0 6.12.0-160000.6.1
  • kernel-obs-qa openSUSE Leap 16.0 6.12.0-160000.6.1
  • kernel-source openSUSE Leap 16.0 6.12.0-160000.6.1
  • kernel-default openSUSE Leap 16.0 6.12.0-160000.6.1
  • kernel-kvmsmall openSUSE Leap 16.0 6.12.0-160000.6.1

opensuse advisories openSUSE-SU-2025:20081-1

  • kernel-abi-stablelists AlmaLinux 10 6.12.0-55.30.1.el10_0
  • kernel AlmaLinux 8 4.18.0-553.72.1.el8_10
  • perf AlmaLinux 8 4.18.0-553.72.1.el8_10
  • bpftool AlmaLinux 8 4.18.0-553.72.1.el8_10
  • kernel-core AlmaLinux 8 4.18.0-553.72.1.el8_10
  • kernel-tools AlmaLinux 8 4.18.0-553.72.1.el8_10
  • python3-perf AlmaLinux 8 4.18.0-553.72.1.el8_10
  • kernel-modules AlmaLinux 8 4.18.0-553.72.1.el8_10

almalinux advisories ALSA-2025:15005ALSA-2025:15008ALSA-2025:15009ALSA-2025:15011

  • kernel Rocky Linux 9 5.14.0-570.39.1.el9_6
  • kernel Rocky Linux 10 6.12.0-55.30.1.el10_0
  • kernel-rt Rocky Linux 8 4.18.0-553.72.1.rt7.413.el8_10
  • kernel Rocky Linux 8 4.18.0-553.72.1.el8_10

rocky linux advisories RLSA-2025:15011RLSA-2025:15005RLSA-2025:15009RLSA-2025:15008

  • kernel Azure Linux 3.0 6.6.96.1-1

azure linux advisories AZL-64686

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-2025-38211 updated cvss 7.3

kernel: RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction

  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more
    affected: workaround, no fix available “Fix deferred”
  • 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: workaround, no fix available
  • Red Hat CodeReady Linux Builder EUS (v.9.4) libperf 5.14.0-427.91.1.el9_4, kernel-debuginfo-common-s390x 5.14.0-427.91.1.el9_4, kernel-debuginfo-common-x86_64 5.14.0-427.91.1.el9_4, kernel-debuginfo-common-aarch64 5.14.0-427.91.1.el9_4, kernel-debuginfo-common-ppc64le 5.14.0-427.91.1.el9_4
    fixed: vendor fix RHSA-2025:16669
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-570.39.1.el9_6, perf 5.14.0-570.39.1.el9_6, rtla 5.14.0-570.39.1.el9_6, python3-perf 5.14.0-570.39.1.el9_6, kernel-devel-matched 5.14.0-570.39.1.el9_6, kernel-64k-devel-matched 5.14.0-570.39.1.el9_6, +7 more
    fixed: vendor fix RHSA-2025:15011
  • Red Hat Enterprise Linux AppStream (v. 10) rv 6.12.0-55.30.1.el10_0, perf 6.12.0-55.30.1.el10_0, rtla 6.12.0-55.30.1.el10_0, python3-perf 6.12.0-55.30.1.el10_0, kernel-devel-matched 6.12.0-55.30.1.el10_0, kernel-64k-devel-matched 6.12.0-55.30.1.el10_0, +7 more
    fixed: vendor fix RHSA-2025:15005
  • Red Hat Enterprise Linux AppStream E4S (v.9.0) perf 5.14.0-70.148.1.el9_0, kernel-devel-matched 5.14.0-70.148.1.el9_0, kernel-debug-devel-matched 5.14.0-70.148.1.el9_0, kernel-debuginfo-common-s390x 5.14.0-70.148.1.el9_0, kernel-zfcpdump-devel-matched 5.14.0-70.148.1.el9_0, kernel-debuginfo-common-x86_64 5.14.0-70.148.1.el9_0, +2 more
    fixed: vendor fix RHSA-2025:17159
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) perf 5.14.0-284.137.1.el9_2, rtla 5.14.0-284.137.1.el9_2, kernel-devel-matched 5.14.0-284.137.1.el9_2, kernel-64k-devel-matched 5.14.0-284.137.1.el9_2, kernel-debug-devel-matched 5.14.0-284.137.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.137.1.el9_2, +5 more
    fixed: vendor fix RHSA-2025:15669
show 30 more
  • Red Hat Enterprise Linux AppStream EUS (v.9.4) rv 5.14.0-427.91.1.el9_4, perf 5.14.0-427.91.1.el9_4, rtla 5.14.0-427.91.1.el9_4, kernel-devel-matched 5.14.0-427.91.1.el9_4, kernel-64k-devel-matched 5.14.0-427.91.1.el9_4, kernel-debug-devel-matched 5.14.0-427.91.1.el9_4, +6 more
    fixed: vendor fix RHSA-2025:16669
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.72.1.el8_10, kernel 4.18.0-553.72.1.el8_10, bpftool 4.18.0-553.72.1.el8_10, kernel-core 4.18.0-553.72.1.el8_10, kernel-tools 4.18.0-553.72.1.el8_10, python3-perf 4.18.0-553.72.1.el8_10, +15 more
    fixed: vendor fix RHSA-2025:15008
  • Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-570.39.1.el9_6, kernel-64k 5.14.0-570.39.1.el9_6, kernel-core 5.14.0-570.39.1.el9_6, kernel-tools 5.14.0-570.39.1.el9_6, kernel-modules 5.14.0-570.39.1.el9_6, kernel-64k-core 5.14.0-570.39.1.el9_6, +27 more
    fixed: vendor fix RHSA-2025:15011
  • Red Hat Enterprise Linux BaseOS (v. 10) kernel 6.12.0-55.30.1.el10_0, kernel-64k 6.12.0-55.30.1.el10_0, kernel-core 6.12.0-55.30.1.el10_0, kernel-tools 6.12.0-55.30.1.el10_0, kernel-modules 6.12.0-55.30.1.el10_0, kernel-64k-core 6.12.0-55.30.1.el10_0, +27 more
    fixed: vendor fix RHSA-2025:15005
  • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) perf 4.18.0-193.173.1.el8_2, kernel 4.18.0-193.173.1.el8_2, bpftool 4.18.0-193.173.1.el8_2, kernel-core 4.18.0-193.173.1.el8_2, kernel-tools 4.18.0-193.173.1.el8_2, python3-perf 4.18.0-193.173.1.el8_2, +8 more
    fixed: vendor fix RHSA-2025:21667
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) perf 4.18.0-305.179.1.el8_4, kernel 4.18.0-305.179.1.el8_4, bpftool 4.18.0-305.179.1.el8_4, kernel-core 4.18.0-305.179.1.el8_4, kernel-tools 4.18.0-305.179.1.el8_4, python3-perf 4.18.0-305.179.1.el8_4, +8 more
    fixed: vendor fix RHSA-2025:22752
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) perf 4.18.0-372.164.1.el8_6, kernel 4.18.0-372.164.1.el8_6, bpftool 4.18.0-372.164.1.el8_6, kernel-core 4.18.0-372.164.1.el8_6, kernel-tools 4.18.0-372.164.1.el8_6, python3-perf 4.18.0-372.164.1.el8_6, +8 more Red Hat Enterprise Linux BaseOS E4S (v.8.6) perf 4.18.0-372.164.1.el8_6, kernel 4.18.0-372.164.1.el8_6, bpftool 4.18.0-372.164.1.el8_6, kernel-core 4.18.0-372.164.1.el8_6, kernel-tools 4.18.0-372.164.1.el8_6, python3-perf 4.18.0-372.164.1.el8_6, +15 more
    fixed: vendor fix RHSA-2025:18043
  • Red Hat Enterprise Linux BaseOS E4S (v.8.8) perf 4.18.0-477.114.1.el8_8, kernel 4.18.0-477.114.1.el8_8, bpftool 4.18.0-477.114.1.el8_8, kernel-core 4.18.0-477.114.1.el8_8, kernel-tools 4.18.0-477.114.1.el8_8, python3-perf 4.18.0-477.114.1.el8_8, +9 more
    fixed: vendor fix RHSA-2025:17570
  • Red Hat Enterprise Linux BaseOS E4S (v.9.0) kernel 5.14.0-70.148.1.el9_0, bpftool 5.14.0-70.148.1.el9_0, kernel-core 5.14.0-70.148.1.el9_0, kernel-tools 5.14.0-70.148.1.el9_0, python3-perf 5.14.0-70.148.1.el9_0, kernel-modules 5.14.0-70.148.1.el9_0, +14 more
    fixed: vendor fix RHSA-2025:17159
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool 7.0.0-284.137.1.el9_2, kernel 5.14.0-284.137.1.el9_2, kernel-64k 5.14.0-284.137.1.el9_2, kernel-core 5.14.0-284.137.1.el9_2, kernel-tools 5.14.0-284.137.1.el9_2, python3-perf 5.14.0-284.137.1.el9_2, +28 more
    fixed: vendor fix RHSA-2025:15669
  • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool 7.3.0-427.91.1.el9_4, kernel 5.14.0-427.91.1.el9_4, kernel-64k 5.14.0-427.91.1.el9_4, kernel-core 5.14.0-427.91.1.el9_4, kernel-tools 5.14.0-427.91.1.el9_4, python3-perf 5.14.0-427.91.1.el9_4, +28 more
    fixed: vendor fix RHSA-2025:16669
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) perf 4.18.0-305.179.1.el8_4, kernel 4.18.0-305.179.1.el8_4, bpftool 4.18.0-305.179.1.el8_4, kernel-core 4.18.0-305.179.1.el8_4, kernel-tools 4.18.0-305.179.1.el8_4, python3-perf 4.18.0-305.179.1.el8_4, +8 more
    fixed: vendor fix RHSA-2025:22752
  • Red Hat Enterprise Linux BaseOS TUS (v.8.6) perf 4.18.0-372.164.1.el8_6, kernel 4.18.0-372.164.1.el8_6, bpftool 4.18.0-372.164.1.el8_6, kernel-core 4.18.0-372.164.1.el8_6, kernel-tools 4.18.0-372.164.1.el8_6, python3-perf 4.18.0-372.164.1.el8_6, +8 more
    fixed: vendor fix RHSA-2025:18043
  • Red Hat Enterprise Linux BaseOS TUS (v.8.8) perf 4.18.0-477.114.1.el8_8, kernel 4.18.0-477.114.1.el8_8, bpftool 4.18.0-477.114.1.el8_8, kernel-core 4.18.0-477.114.1.el8_8, kernel-tools 4.18.0-477.114.1.el8_8, python3-perf 4.18.0-477.114.1.el8_8, +8 more
    fixed: vendor fix RHSA-2025:17570
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libperf 5.14.0-570.39.1.el9_6, kernel-debuginfo-common-s390x 5.14.0-570.39.1.el9_6, kernel-debuginfo-common-x86_64 5.14.0-570.39.1.el9_6, kernel-debuginfo-common-aarch64 5.14.0-570.39.1.el9_6, kernel-debuginfo-common-ppc64le 5.14.0-570.39.1.el9_6
    fixed: vendor fix RHSA-2025:15011
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libperf 6.12.0-55.30.1.el10_0, kernel-debuginfo-common-s390x 6.12.0-55.30.1.el10_0, kernel-debuginfo-common-x86_64 6.12.0-55.30.1.el10_0, kernel-debuginfo-common-aarch64 6.12.0-55.30.1.el10_0, kernel-debuginfo-common-ppc64le 6.12.0-55.30.1.el10_0
    fixed: vendor fix RHSA-2025:15005
  • Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.72.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.72.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.72.1.el8_10
    fixed: vendor fix RHSA-2025:15008
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.72.1.rt7.413.el8_10, kernel-rt-kvm 4.18.0-553.72.1.rt7.413.el8_10, kernel-rt-core 4.18.0-553.72.1.rt7.413.el8_10, kernel-rt-modules 4.18.0-553.72.1.rt7.413.el8_10, kernel-rt-debug-kvm 4.18.0-553.72.1.rt7.413.el8_10, kernel-rt-debug-core 4.18.0-553.72.1.rt7.413.el8_10, +4 more
    fixed: vendor fix RHSA-2025:15009
  • Red Hat Enterprise Linux NFV E4S (v.9.0) kernel-rt 5.14.0-70.148.1.rt21.220.el9_0, kernel-rt-kvm 5.14.0-70.148.1.rt21.220.el9_0, kernel-rt-core 5.14.0-70.148.1.rt21.220.el9_0, kernel-rt-modules 5.14.0-70.148.1.rt21.220.el9_0, kernel-rt-debug-kvm 5.14.0-70.148.1.rt21.220.el9_0, kernel-rt-debug-core 5.14.0-70.148.1.rt21.220.el9_0, +4 more
    fixed: vendor fix RHSA-2025:17192
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-570.39.1.el9_6, kernel-rt-64k 5.14.0-570.39.1.el9_6, kernel-rt-core 5.14.0-570.39.1.el9_6, kernel-rt-modules 5.14.0-570.39.1.el9_6, kernel-rt-64k-core 5.14.0-570.39.1.el9_6, kernel-rt-debug-core 5.14.0-570.39.1.el9_6, +14 more
    fixed: vendor fix RHSA-2025:15011
  • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt 6.12.0-55.30.1.el10_0, kernel-rt-64k 6.12.0-55.30.1.el10_0, kernel-rt-core 6.12.0-55.30.1.el10_0, kernel-rt-modules 6.12.0-55.30.1.el10_0, kernel-rt-64k-core 6.12.0-55.30.1.el10_0, kernel-rt-debug-core 6.12.0-55.30.1.el10_0, +14 more
    fixed: vendor fix RHSA-2025:15005
  • Red Hat Enterprise Linux Real Time E4S (v.9.0) kernel-rt 5.14.0-70.148.1.rt21.220.el9_0, kernel-rt-core 5.14.0-70.148.1.rt21.220.el9_0, kernel-rt-modules 5.14.0-70.148.1.rt21.220.el9_0, kernel-rt-debug-core 5.14.0-70.148.1.rt21.220.el9_0, kernel-rt-debug-modules 5.14.0-70.148.1.rt21.220.el9_0, kernel-rt-modules-extra 5.14.0-70.148.1.rt21.220.el9_0, +2 more
    fixed: vendor fix RHSA-2025:17192
  • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt 5.14.0-284.137.1.rt14.422.el9_2, kernel-rt-core 5.14.0-284.137.1.rt14.422.el9_2, kernel-rt-modules 5.14.0-284.137.1.rt14.422.el9_2, kernel-rt-debug-core 5.14.0-284.137.1.rt14.422.el9_2, kernel-rt-modules-core 5.14.0-284.137.1.rt14.422.el9_2, kernel-rt-debug-modules 5.14.0-284.137.1.rt14.422.el9_2, +4 more
    fixed: vendor fix RHSA-2025:15657
  • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt 5.14.0-427.91.1.el9_4, kernel-rt-core 5.14.0-427.91.1.el9_4, kernel-rt-modules 5.14.0-427.91.1.el9_4, kernel-rt-debug-core 5.14.0-427.91.1.el9_4, kernel-rt-modules-core 5.14.0-427.91.1.el9_4, kernel-rt-debug-modules 5.14.0-427.91.1.el9_4, +4 more
    fixed: vendor fix RHSA-2025:16669
  • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-570.39.1.el9_6, kernel-rt-kvm 5.14.0-570.39.1.el9_6, kernel-rt-core 5.14.0-570.39.1.el9_6, kernel-rt-modules 5.14.0-570.39.1.el9_6, kernel-rt-debug-kvm 5.14.0-570.39.1.el9_6, kernel-rt-debug-core 5.14.0-570.39.1.el9_6, +6 more
    fixed: vendor fix RHSA-2025:15011
  • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt 6.12.0-55.30.1.el10_0, kernel-rt-kvm 6.12.0-55.30.1.el10_0, kernel-rt-core 6.12.0-55.30.1.el10_0, kernel-rt-modules 6.12.0-55.30.1.el10_0, kernel-rt-debug-kvm 6.12.0-55.30.1.el10_0, kernel-rt-debug-core 6.12.0-55.30.1.el10_0, +6 more
    fixed: vendor fix RHSA-2025:15005
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt 5.14.0-284.137.1.rt14.422.el9_2, kernel-rt-kvm 5.14.0-284.137.1.rt14.422.el9_2, kernel-rt-core 5.14.0-284.137.1.rt14.422.el9_2, kernel-rt-modules 5.14.0-284.137.1.rt14.422.el9_2, kernel-rt-debug-kvm 5.14.0-284.137.1.rt14.422.el9_2, kernel-rt-debug-core 5.14.0-284.137.1.rt14.422.el9_2, +6 more
    fixed: vendor fix RHSA-2025:15657
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt 5.14.0-427.91.1.el9_4, kernel-rt-kvm 5.14.0-427.91.1.el9_4, kernel-rt-core 5.14.0-427.91.1.el9_4, kernel-rt-modules 5.14.0-427.91.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.91.1.el9_4, kernel-rt-debug-core 5.14.0-427.91.1.el9_4, +6 more
    fixed: vendor fix RHSA-2025:16669
  • Red Hat Enterprise Linux RT (v. 8) kernel-rt 4.18.0-553.72.1.rt7.413.el8_10, kernel-rt-core 4.18.0-553.72.1.rt7.413.el8_10, kernel-rt-modules 4.18.0-553.72.1.rt7.413.el8_10, kernel-rt-debug-core 4.18.0-553.72.1.rt7.413.el8_10, kernel-rt-debug-modules 4.18.0-553.72.1.rt7.413.el8_10, kernel-rt-modules-extra 4.18.0-553.72.1.rt7.413.el8_10, +2 more
    fixed: vendor fix RHSA-2025:15009
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) kernel-doc 5.14.0-284.137.1.el9_2 Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt-devel 5.14.0-284.137.1.rt14.422.el9_2
    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
no
Technical impact
total
Assessed
4 mo ago

Exploit prediction

0.41% chance of exploitation in the next 30 days, higher than 36% 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
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/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.