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Fencer Vulns
high 7.8

CVE-2025-40251 json

devlink: rate: Unset parent pointer in devl_rate_nodes_destroy

published 2025-12-04 11 mo ago modified 2026-10-19 20 d ago also EUVD-2025-201206

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 5%
public exploits
0
none known

Summary

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

devlink: rate: Unset parent pointer in devl_rate_nodes_destroy

The function devl_rate_nodes_destroy is documented to "Unset parent for all rate objects". However, it was only calling the driver-specific `rate_leaf_parent_set` or `rate_node_parent_set` ops and decrementing the parent's refcount, without actually setting the `devlink_rate->parent` pointer to NULL.

This leaves a dangling pointer in the `devlink_rate` struct, which cause refcount error in netdevsim[1] and mlx5[2]. In addition, this is inconsistent with the behavior of `devlink_nl_rate_parent_node_set`, where the parent pointer is correctly cleared.

This patch fixes the issue by explicitly setting `devlink_rate->parent` to NULL after notifying the driver, thus fulfilling the function's documented behavior for all rate objects.

[1] repro steps: echo 1 > /sys/bus/netdevsim/new_device devlink dev eswitch set netdevsim/netdevsim1 mode switchdev echo 1 > /sys/bus/netdevsim/devices/netdevsim1/sriov_numvfs devlink port function rate add netdevsim/netdevsim1/test_node devlink port function rate set netdevsim/netdevsim1/128 parent test_node echo 1 > /sys/bus/netdevsim/del_device

dmesg: refcount_t: decrement hit 0; leaking memory. WARNING: CPU: 8 PID: 1530 at lib/refcount.c:31 refcount_warn_saturate+0x42/0xe0 CPU: 8 UID: 0 PID: 1530 Comm: bash Not tainted 6.18.0-rc4+ #1 NONE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014 RIP: 0010:refcount_warn_saturate+0x42/0xe0 Call Trace: <TASK> devl_rate_leaf_destroy+0x8d/0x90 __nsim_dev_port_del+0x6c/0x70 [netdevsim] nsim_dev_reload_destroy+0x11c/0x140 [netdevsim] nsim_drv_remove+0x2b/0xb0 [netdevsim] device_release_driver_internal+0x194/0x1f0 bus_remove_device+0xc6/0x130 device_del+0x159/0x3c0 device_unregister+0x1a/0x60 del_device_store+0x111/0x170 [netdevsim] kernfs_fop_write_iter+0x12e/0x1e0 vfs_write+0x215/0x3d0 ksys_write+0x5f/0xd0 do_syscall_64+0x55/0x10f0 entry_SYSCALL_64_after_hwframe+0x4b/0x53

[2] devlink dev eswitch set pci/0000:08:00.0 mode switchdev devlink port add pci/0000:08:00.0 flavour pcisf pfnum 0 sfnum 1000 devlink port function rate add pci/0000:08:00.0/group1 devlink port function rate set pci/0000:08:00.0/32768 parent group1 modprobe -r mlx5_ib mlx5_fwctl mlx5_core

dmesg: refcount_t: decrement hit 0; leaking memory. WARNING: CPU: 7 PID: 16151 at lib/refcount.c:31 refcount_warn_saturate+0x42/0xe0 CPU: 7 UID: 0 PID: 16151 Comm: bash Not tainted 6.17.0-rc7_for_upstream_min_debug_2025_10_02_12_44 #1 NONE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 RIP: 0010:refcount_warn_saturate+0x42/0xe0 Call Trace: <TASK> devl_rate_leaf_destroy+0x8d/0x90 mlx5_esw_offloads_devlink_port_unregister+0x33/0x60 [mlx5_core] mlx5_esw_offloads_unload_rep+0x3f/0x50 [mlx5_core] mlx5_eswitch_unload_sf_vport+0x40/0x90 [mlx5_core] mlx5_sf_esw_event+0xc4/0x120 [mlx5_core] notifier_call_chain+0x33/0xa0 blocking_notifier_call_chain+0x3b/0x50 mlx5_eswitch_disable_locked+0x50/0x110 [mlx5_core] mlx5_eswitch_disable+0x63/0x90 [mlx5_core] mlx5_unload+0x1d/0x170 [mlx5_core] mlx5_uninit_one+0xa2/0x130 [mlx5_core] remove_one+0x78/0xd0 [mlx5_core] pci_device_remove+0x39/0xa0 device_release_driver_internal+0x194/0x1f0 unbind_store+0x99/0xa0 kernfs_fop_write_iter+0x12e/0x1e0 vfs_write+0x215/0x3d0 ksys_write+0x5f/0xd0 do_syscall_64+0x53/0x1f0 entry_SYSCALL_64_after_hwframe+0x4b/0x53

Patch / fix

  • Linux Linux 6.1.164, 6.6.118, 6.12.60, 6.17.10, 6.18
  • Siemens RUGGEDCOM RST2428P V4.0
  • linux Debian 12 6.1.164-1
  • linux Debian 13 6.12.63-1
  • linux Debian 14 6.17.10-1

debian advisories DEBIAN-CVE-2025-40251

  • linux Ubuntu 24.04 LTS 6.8.0-106.106
  • linux Ubuntu 25.10 6.17.0-19.19
  • linux-aws Ubuntu 24.04 LTS 6.8.0-1050.53
  • linux-aws Ubuntu 25.10 6.17.0-1009.9
  • linux-gcp Ubuntu 24.04 LTS 6.8.0-1052.55
  • linux-gcp Ubuntu 25.10 6.17.0-1009.9
  • linux-gke Ubuntu 24.04 LTS 6.8.0-1048.53
  • linux-ibm Ubuntu 24.04 LTS 6.8.0-1049.49

ubuntu advisories UBUNTU-CVE-2025-40251

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 10.1 6.12.0-124.31.1.el10_1
  • rv RHEL 10.1 6.12.0-124.31.1.el10_1
  • perf RHEL 10.1 6.12.0-124.31.1.el10_1
  • rtla RHEL 10.1 6.12.0-124.31.1.el10_1
  • libperf RHEL 10.1 6.12.0-124.31.1.el10_1
  • kernel-rt RHEL 10.1 6.12.0-124.31.1.el10_1
  • kernel-64k RHEL 10.1 6.12.0-124.31.1.el10_1
  • kernel-core RHEL 10.1 6.12.0-124.31.1.el10_1

red hat advisories RHSA-2026:2577RHSA-2026:2583RHSA-2026:2573RHSA-2026:2560RHSA-2026:1879RHSA-2026:1727

  • 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-source Linux Micro 6.1, Linux Micro 6.0 6.4.0-39.1
  • kernel-default Linux Micro 6.1, Linux Micro 6.0 6.4.0-39.1
  • kernel-kvmsmall Linux Micro 6.1, Linux Micro 6.0 6.4.0-39.1
  • kernel-default-base Linux Micro 6.1, Linux Micro 6.0 6.4.0-39.1.21.16
  • kernel-rt Linux Micro 6.2 6.12.0-160000.9.1
  • kernel-64kb SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 6.12.0-160000.9.1

suse advisories SUSE-SU-2026:20845-1SUSE-SU-2026:20876-1SUSE-SU-2026:20477-1SUSE-SU-2026:20498-1SUSE-SU-2026:20207-1SUSE-SU-2026:20220-1

  • kernel-rt openSUSE Leap 16.0 6.12.0-160000.9.1
  • dtb-aarch64 openSUSE Leap 16.0 6.12.0-160000.9.1
  • kernel-64kb openSUSE Leap 16.0 6.12.0-160000.9.1
  • kernel-syms openSUSE Leap 16.0 6.12.0-160000.9.1
  • kernel-azure openSUSE Leap 16.0 6.12.0-160000.9.1
  • kernel-obs-qa openSUSE Leap 16.0 6.12.0-160000.9.1
  • kernel-source openSUSE Leap 16.0 6.12.0-160000.9.1
  • kernel-default openSUSE Leap 16.0 6.12.0-160000.9.1

opensuse advisories openSUSE-SU-2026:20145-1

  • kernel AlmaLinux 9 5.14.0-611.27.1.el9_7
  • rv AlmaLinux 9 5.14.0-611.27.1.el9_7
  • perf AlmaLinux 9 5.14.0-611.27.1.el9_7
  • rtla AlmaLinux 9 5.14.0-611.27.1.el9_7
  • libperf AlmaLinux 9 5.14.0-611.27.1.el9_7
  • kernel-rt AlmaLinux 9 5.14.0-611.27.1.el9_7
  • kernel-64k AlmaLinux 9 5.14.0-611.27.1.el9_7
  • kernel-core AlmaLinux 9 5.14.0-611.27.1.el9_7

almalinux advisories ALSA-2026:1617ALSA-2026:1690

  • kernel Rocky Linux 10 6.12.0-124.31.1.el10_1
  • kernel Rocky Linux 9 5.14.0-611.27.1.el9_7

rocky linux advisories RLSA-2026:1690RLSA-2026:1617

  • kernel Azure Linux 3.0 6.6.119.3-1

azure linux advisories AZL-71420

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-2025-40251 updated cvss 7.1

kernel: devlink: rate: Unset parent pointer in devl_rate_nodes_destroy

  • 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 5.14.0-427.109.1.el9_4, kernel-debuginfo-common-s390x 5.14.0-427.109.1.el9_4, kernel-debuginfo-common-x86_64 5.14.0-427.109.1.el9_4, kernel-debuginfo-common-aarch64 5.14.0-427.109.1.el9_4, kernel-debuginfo-common-ppc64le 5.14.0-427.109.1.el9_4
    fixed: vendor fix RHSA-2026:1879
  • Red Hat CodeReady Linux Builder EUS (v.9.6) libperf 5.14.0-570.81.1.el9_6, kernel-debuginfo-common-s390x 5.14.0-570.81.1.el9_6, kernel-debuginfo-common-x86_64 5.14.0-570.81.1.el9_6, kernel-debuginfo-common-aarch64 5.14.0-570.81.1.el9_6, kernel-debuginfo-common-ppc64le 5.14.0-570.81.1.el9_6
    fixed: vendor fix RHSA-2026:1194
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-611.27.1.el9_7, perf 5.14.0-611.27.1.el9_7, rtla 5.14.0-611.27.1.el9_7, python3-perf 5.14.0-611.27.1.el9_7, kernel-devel-matched 5.14.0-611.27.1.el9_7, kernel-64k-devel-matched 5.14.0-611.27.1.el9_7, +7 more
    fixed: vendor fix RHSA-2026:1617
  • Red Hat Enterprise Linux AppStream (v. 10) rv 6.12.0-124.31.1.el10_1, perf 6.12.0-124.31.1.el10_1, rtla 6.12.0-124.31.1.el10_1, python3-perf 6.12.0-124.31.1.el10_1, kernel-devel-matched 6.12.0-124.31.1.el10_1, kernel-64k-devel-matched 6.12.0-124.31.1.el10_1, +7 more
    fixed: vendor fix RHSA-2026:1690
  • Red Hat Enterprise Linux AppStream E4S (v.9.0) perf 5.14.0-70.165.1.el9_0, kernel-devel-matched 5.14.0-70.165.1.el9_0, kernel-debug-devel-matched 5.14.0-70.165.1.el9_0, kernel-debuginfo-common-s390x 5.14.0-70.165.1.el9_0, kernel-zfcpdump-devel-matched 5.14.0-70.165.1.el9_0, kernel-debuginfo-common-x86_64 5.14.0-70.165.1.el9_0, +2 more
    fixed: vendor fix RHSA-2026:2573
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) perf 5.14.0-284.156.1.el9_2, rtla 5.14.0-284.156.1.el9_2, kernel-devel-matched 5.14.0-284.156.1.el9_2, kernel-64k-devel-matched 5.14.0-284.156.1.el9_2, kernel-debug-devel-matched 5.14.0-284.156.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.156.1.el9_2, +5 more
    fixed: vendor fix RHSA-2026:2560
  • Red Hat Enterprise Linux AppStream EUS (v. 10.0) rv 6.12.0-55.58.1.el10_0, perf 6.12.0-55.58.1.el10_0, rtla 6.12.0-55.58.1.el10_0, python3-perf 6.12.0-55.58.1.el10_0, kernel-devel-matched 6.12.0-55.58.1.el10_0, kernel-64k-devel-matched 6.12.0-55.58.1.el10_0, +7 more
    fixed: vendor fix RHSA-2026:1727
show 27 more
  • Red Hat Enterprise Linux AppStream EUS (v.9.4) rv 5.14.0-427.109.1.el9_4, perf 5.14.0-427.109.1.el9_4, rtla 5.14.0-427.109.1.el9_4, kernel-devel-matched 5.14.0-427.109.1.el9_4, kernel-64k-devel-matched 5.14.0-427.109.1.el9_4, kernel-debug-devel-matched 5.14.0-427.109.1.el9_4, +6 more
    fixed: vendor fix RHSA-2026:1879
  • Red Hat Enterprise Linux AppStream EUS (v.9.6) rv 5.14.0-570.81.1.el9_6, perf 5.14.0-570.81.1.el9_6, rtla 5.14.0-570.81.1.el9_6, python3-perf 5.14.0-570.81.1.el9_6, kernel-devel-matched 5.14.0-570.81.1.el9_6, kernel-64k-devel-matched 5.14.0-570.81.1.el9_6, +7 more
    fixed: vendor fix RHSA-2026:1194
  • Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-611.27.1.el9_7, kernel-64k 5.14.0-611.27.1.el9_7, kernel-core 5.14.0-611.27.1.el9_7, kernel-tools 5.14.0-611.27.1.el9_7, kernel-modules 5.14.0-611.27.1.el9_7, kernel-64k-core 5.14.0-611.27.1.el9_7, +27 more
    fixed: vendor fix RHSA-2026:1617
  • Red Hat Enterprise Linux BaseOS (v. 10) kernel 6.12.0-124.31.1.el10_1, kernel-64k 6.12.0-124.31.1.el10_1, kernel-core 6.12.0-124.31.1.el10_1, kernel-tools 6.12.0-124.31.1.el10_1, kernel-modules 6.12.0-124.31.1.el10_1, kernel-64k-core 6.12.0-124.31.1.el10_1, +28 more
    fixed: vendor fix RHSA-2026:1690
  • Red Hat Enterprise Linux BaseOS E4S (v.9.0) kernel 5.14.0-70.165.1.el9_0, bpftool 5.14.0-70.165.1.el9_0, kernel-core 5.14.0-70.165.1.el9_0, kernel-tools 5.14.0-70.165.1.el9_0, python3-perf 5.14.0-70.165.1.el9_0, kernel-modules 5.14.0-70.165.1.el9_0, +14 more
    fixed: vendor fix RHSA-2026:2573
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool 7.0.0-284.156.1.el9_2, kernel 5.14.0-284.156.1.el9_2, kernel-64k 5.14.0-284.156.1.el9_2, kernel-core 5.14.0-284.156.1.el9_2, kernel-tools 5.14.0-284.156.1.el9_2, python3-perf 5.14.0-284.156.1.el9_2, +28 more
    fixed: vendor fix RHSA-2026:2560
  • Red Hat Enterprise Linux BaseOS EUS (v. 10.0) kernel 6.12.0-55.58.1.el10_0, kernel-64k 6.12.0-55.58.1.el10_0, kernel-core 6.12.0-55.58.1.el10_0, kernel-tools 6.12.0-55.58.1.el10_0, kernel-modules 6.12.0-55.58.1.el10_0, kernel-64k-core 6.12.0-55.58.1.el10_0, +27 more
    fixed: vendor fix RHSA-2026:1727
  • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool 7.3.0-427.109.1.el9_4, kernel 5.14.0-427.109.1.el9_4, kernel-64k 5.14.0-427.109.1.el9_4, kernel-core 5.14.0-427.109.1.el9_4, kernel-tools 5.14.0-427.109.1.el9_4, python3-perf 5.14.0-427.109.1.el9_4, +28 more
    fixed: vendor fix RHSA-2026:1879
  • Red Hat Enterprise Linux BaseOS EUS (v.9.6) kernel 5.14.0-570.81.1.el9_6, kernel-64k 5.14.0-570.81.1.el9_6, kernel-core 5.14.0-570.81.1.el9_6, kernel-tools 5.14.0-570.81.1.el9_6, kernel-modules 5.14.0-570.81.1.el9_6, kernel-64k-core 5.14.0-570.81.1.el9_6, +27 more
    fixed: vendor fix RHSA-2026:1194
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libperf 5.14.0-611.27.1.el9_7, kernel-debuginfo-common-s390x 5.14.0-611.27.1.el9_7, kernel-debuginfo-common-x86_64 5.14.0-611.27.1.el9_7, kernel-debuginfo-common-aarch64 5.14.0-611.27.1.el9_7, kernel-debuginfo-common-ppc64le 5.14.0-611.27.1.el9_7
    fixed: vendor fix RHSA-2026:1617
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libperf 6.12.0-124.31.1.el10_1, kernel-debuginfo-common-s390x 6.12.0-124.31.1.el10_1, kernel-debuginfo-common-x86_64 6.12.0-124.31.1.el10_1, kernel-debuginfo-common-aarch64 6.12.0-124.31.1.el10_1, kernel-debuginfo-common-ppc64le 6.12.0-124.31.1.el10_1
    fixed: vendor fix RHSA-2026:1690
  • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) libperf 6.12.0-55.58.1.el10_0, kernel-debuginfo-common-s390x 6.12.0-55.58.1.el10_0, kernel-debuginfo-common-x86_64 6.12.0-55.58.1.el10_0, kernel-debuginfo-common-aarch64 6.12.0-55.58.1.el10_0, kernel-debuginfo-common-ppc64le 6.12.0-55.58.1.el10_0
    fixed: vendor fix RHSA-2026:1727
  • Red Hat Enterprise Linux NFV E4S (v.9.0) kernel-rt 5.14.0-70.165.1.rt21.237.el9_0, kernel-rt-kvm 5.14.0-70.165.1.rt21.237.el9_0, kernel-rt-core 5.14.0-70.165.1.rt21.237.el9_0, kernel-rt-modules 5.14.0-70.165.1.rt21.237.el9_0, kernel-rt-debug-kvm 5.14.0-70.165.1.rt21.237.el9_0, kernel-rt-debug-core 5.14.0-70.165.1.rt21.237.el9_0, +4 more
    fixed: vendor fix RHSA-2026:2577
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-611.27.1.el9_7, kernel-rt-64k 5.14.0-611.27.1.el9_7, kernel-rt-core 5.14.0-611.27.1.el9_7, kernel-rt-modules 5.14.0-611.27.1.el9_7, kernel-rt-64k-core 5.14.0-611.27.1.el9_7, kernel-rt-debug-core 5.14.0-611.27.1.el9_7, +14 more
    fixed: vendor fix RHSA-2026:1617
  • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt 6.12.0-124.31.1.el10_1, kernel-rt-64k 6.12.0-124.31.1.el10_1, kernel-rt-core 6.12.0-124.31.1.el10_1, kernel-rt-modules 6.12.0-124.31.1.el10_1, kernel-rt-64k-core 6.12.0-124.31.1.el10_1, kernel-rt-debug-core 6.12.0-124.31.1.el10_1, +14 more
    fixed: vendor fix RHSA-2026:1690
  • Red Hat Enterprise Linux Real Time E4S (v.9.0) kernel-rt 5.14.0-70.165.1.rt21.237.el9_0, kernel-rt-core 5.14.0-70.165.1.rt21.237.el9_0, kernel-rt-modules 5.14.0-70.165.1.rt21.237.el9_0, kernel-rt-debug-core 5.14.0-70.165.1.rt21.237.el9_0, kernel-rt-debug-modules 5.14.0-70.165.1.rt21.237.el9_0, kernel-rt-modules-extra 5.14.0-70.165.1.rt21.237.el9_0, +2 more
    fixed: vendor fix RHSA-2026:2577
  • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt 5.14.0-284.156.1.rt14.441.el9_2, kernel-rt-core 5.14.0-284.156.1.rt14.441.el9_2, kernel-rt-modules 5.14.0-284.156.1.rt14.441.el9_2, kernel-rt-debug-core 5.14.0-284.156.1.rt14.441.el9_2, kernel-rt-modules-core 5.14.0-284.156.1.rt14.441.el9_2, kernel-rt-debug-modules 5.14.0-284.156.1.rt14.441.el9_2, +4 more
    fixed: vendor fix RHSA-2026:2583
  • Red Hat Enterprise Linux Real Time EUS (v. 10.0) kernel-rt 6.12.0-55.58.1.el10_0, kernel-rt-64k 6.12.0-55.58.1.el10_0, kernel-rt-core 6.12.0-55.58.1.el10_0, kernel-rt-modules 6.12.0-55.58.1.el10_0, kernel-rt-64k-core 6.12.0-55.58.1.el10_0, kernel-rt-debug-core 6.12.0-55.58.1.el10_0, +14 more
    fixed: vendor fix RHSA-2026:1727
  • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt 5.14.0-427.109.1.el9_4, kernel-rt-core 5.14.0-427.109.1.el9_4, kernel-rt-modules 5.14.0-427.109.1.el9_4, kernel-rt-debug-core 5.14.0-427.109.1.el9_4, kernel-rt-modules-core 5.14.0-427.109.1.el9_4, kernel-rt-debug-modules 5.14.0-427.109.1.el9_4, +4 more
    fixed: vendor fix RHSA-2026:1879
  • Red Hat Enterprise Linux Real Time EUS (v.9.6) kernel-rt 5.14.0-570.81.1.el9_6, kernel-rt-64k 5.14.0-570.81.1.el9_6, kernel-rt-core 5.14.0-570.81.1.el9_6, kernel-rt-modules 5.14.0-570.81.1.el9_6, kernel-rt-64k-core 5.14.0-570.81.1.el9_6, kernel-rt-debug-core 5.14.0-570.81.1.el9_6, +14 more
    fixed: vendor fix RHSA-2026:1194
  • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-611.27.1.el9_7, kernel-rt-core 5.14.0-611.27.1.el9_7, kernel-rt-modules 5.14.0-611.27.1.el9_7, kernel-rt-debug-core 5.14.0-611.27.1.el9_7, kernel-rt-modules-core 5.14.0-611.27.1.el9_7, kernel-rt-debug-modules 5.14.0-611.27.1.el9_7, +4 more
    fixed: vendor fix RHSA-2026:1617
  • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt 6.12.0-124.31.1.el10_1, kernel-rt-core 6.12.0-124.31.1.el10_1, kernel-rt-modules 6.12.0-124.31.1.el10_1, kernel-rt-debug-core 6.12.0-124.31.1.el10_1, kernel-rt-modules-core 6.12.0-124.31.1.el10_1, kernel-rt-debug-modules 6.12.0-124.31.1.el10_1, +4 more
    fixed: vendor fix RHSA-2026:1690
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt 5.14.0-284.156.1.rt14.441.el9_2, kernel-rt-kvm 5.14.0-284.156.1.rt14.441.el9_2, kernel-rt-core 5.14.0-284.156.1.rt14.441.el9_2, kernel-rt-modules 5.14.0-284.156.1.rt14.441.el9_2, kernel-rt-debug-kvm 5.14.0-284.156.1.rt14.441.el9_2, kernel-rt-debug-core 5.14.0-284.156.1.rt14.441.el9_2, +6 more
    fixed: vendor fix RHSA-2026:2583
  • Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0) kernel-rt 6.12.0-55.58.1.el10_0, kernel-rt-kvm 6.12.0-55.58.1.el10_0, kernel-rt-core 6.12.0-55.58.1.el10_0, kernel-rt-modules 6.12.0-55.58.1.el10_0, kernel-rt-debug-kvm 6.12.0-55.58.1.el10_0, kernel-rt-debug-core 6.12.0-55.58.1.el10_0, +6 more
    fixed: vendor fix RHSA-2026:1727
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt 5.14.0-427.109.1.el9_4, kernel-rt-kvm 5.14.0-427.109.1.el9_4, kernel-rt-core 5.14.0-427.109.1.el9_4, kernel-rt-modules 5.14.0-427.109.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.109.1.el9_4, kernel-rt-debug-core 5.14.0-427.109.1.el9_4, +6 more
    fixed: vendor fix RHSA-2026:1879
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6) kernel-rt 5.14.0-570.81.1.el9_6, kernel-rt-kvm 5.14.0-570.81.1.el9_6, kernel-rt-core 5.14.0-570.81.1.el9_6, kernel-rt-modules 5.14.0-570.81.1.el9_6, kernel-rt-debug-kvm 5.14.0-570.81.1.el9_6, kernel-rt-debug-core 5.14.0-570.81.1.el9_6, +6 more
    fixed: vendor fix RHSA-2026:1194
  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 more
    not affected: vulnerable code not present

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

0.17% chance of exploitation in the next 30 days, higher than 5% 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 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

  • Linux Linux
  • Siemens RUGGEDCOM RST2428P

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.