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Full vulnerability report · 2025
CVE-2025-39953High confidence

cgroup: split cgroup_destroy_wq into 3 workqueues

Linux · Linux

Official source article: Siemens SSA-019113 ↗. Check the applicable product and release in the original source.

5.5MediumCVSS 3.1
Recommended action
Patch only the product branches with a verified fix

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority. Verified remediation exists for at least one product or source, but 26 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityMediumOperational priority:Low, lowered one band.downgradedsince 8 Sep 2026

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • Exploitation requires an existing local or physical foothold with privileges.
  • EPSS is 0.15% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict local access and enforce least privilege on affected hosts.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Linux Linux and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: No default targetRemediation target: Normal maintenance

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Cross-source reconciliation

Remediation availability differs by product scope

Verified remediation exists for at least one product or source, but 26 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Distribution package intelligence

Release-specific package status

Debian, ubuntu findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.

25 package states
Package result overrides the generic status

BlackTree has verified remediation for at least one product or source, but the relevant distribution still reports no fixed package for 21 affected package states shown here. Treat those rows as affected with no fix until that distribution publishes a fixed version.

Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Distribution releaseSource packageVendor stateFixed versionEvidence
Debian trixietrixie · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.12.57-1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian bookwormbookworm · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.1.158-1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian forkyforky · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.16.9-1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian sidsid · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.16.9-1Debian Security Tracker ↗Source updated 6 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinuxAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-awsAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-azureAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-azure-fdeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-azure-nvidiaAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-gcpAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-gkeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-gkeopAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-ibmAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-intelAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-lowlatencyAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-nvidiaAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-nvidia-lowlatencyAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-nvidia-tegraAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-oem-6.11Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-oracleAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-raspiAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-raspi-realtimeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-realtimeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-riscvAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-xilinxAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
SSA-019113 · CSAF 2.0 · revision 2 · interimSiemens ProductCERTSSA-019113: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP V3.1.6
5 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) >= V3.1.6
  • SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) >= V3.1.6
  • SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) >= V3.1.6
  • SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) >= V3.1.6
  • SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) >= V3.1.6
Summary
In the Linux kernel, the following vulnerability has been resolved: cgroup: split cgroup_destroy_wq into 3 workqueues A hung task can occur during [1] LTP cgroup testing when repeatedly mounting/unmounting perf_event and net_prio controllers with systemd.unified_cgroup_hierarchy=1. The hang manifests in cgroup_lock_and_drain_offline() during root destruction. Related case: cgroup_fj_function_perf_event cgroup_fj_function.sh perf_event cgroup_fj_function_net_prio cgroup_fj_function.sh net_prio Call Trace: cgroup_lock_and_drain_offline+0x14c/0x1e8 cgroup_destroy_root+0x3c/0x2c0 css_free_rwork_fn+0x248/0x338 process_one_work+0x16c/0x3b8 worker_thread+0x22c/0x3b0 kthread+0xec/0x100 ret_from_fork+0x10/0x20 Root Cause: CPU0 CPU1 mount perf_event umount net_prio cgroup1_get_tree cgroup_kill_sb rebind_subsystems // root destruction enqueues // cgroup_destroy_wq // kill all perf_event css // one perf_event css A is dying // css A offline enqueues cgroup_destroy_wq // root destruction will be executed first css_free_rwork_fn cgroup_destroy_root cgroup_lock_and_drain_offline // some perf descendants are dying // cgroup_destroy_wq max_active = 1 // waiting for css A to die Problem scenario: 1. CPU0 mounts perf_event (rebind_subsystems) 2. CPU1 unmounts net_prio (cgroup_kill_sb), queuing root destruction work 3. A dying perf_event CSS gets queued for offline after root destruction 4. Root destruction waits for offline completion, but offline work is blocked behind root destruction in cgroup_destroy_wq (max_active=1) Solution: Split cgroup_destroy_wq into three dedicated workqueues: cgroup_offline_wq – Handles CSS offline operations cgroup_release_wq – Manages resource release cgroup_free_wq – Performs final memory deallocation This separation eliminates blocking in the CSS free path while waiting for offline operations to complete. [1] https://github.com/linux-test-project/ltp/blob/master/runtest/controllers
Remediation
Limit access to the interactive shell of the additional GNU/Linux subssytem to trusted personnel only.
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2025-32383

No EUVD known-exploited evidence

In the Linux kernel, the following vulnerability has been resolved: cgroup: split cgroup_destroy_wq into 3 workqueues A hung task can occur during [1] LTP cgroup testing when repeatedly mounting/unmounting perf_event and net_prio controllers with systemd.unified_cgroup_hierarchy=1. The hang manifests in cgroup_lock_and_drain_offline() during root destruction. Related case: cgroup_fj_function_perf_event cgroup_fj_function.sh perf_event cgroup_fj_function_net_prio cgroup_fj_function.sh net_prio Call Trace: cgroup_lock_and_drain_offline+0x14c/0x1e8 cgroup_destroy_root+0x3c/0x2c0 css_free_rwork_fn+0x248/0x338 process_one_work+0x16c/0x3b8 worker_thread+0x22c/0x3b0 kthread+0xec/0x100 ret_from_fork+0x10/0x20 Root Cause: CPU0 CPU1 mount perf_event umount net_prio cgroup1_get_tree cgroup_kill_sb rebind_subsystems // root destruction enqueues // cgroup_destroy_wq // kill all perf_event css // one perf_event css A is dying // css A offline enqueues cgroup_destroy_wq // root destruction will be executed first css_free_rwork_fn cgroup_destroy_root cgroup_lock_and_drain_offline // some perf descendants are dying // cgroup_destroy_wq max_active = 1 // waiting for css A to die Problem scenario: 1. CPU0 mounts perf_event (rebind_subsystems) 2. CPU1 unmounts net_prio (cgroup_kill_sb), queuing root destruction work 3. A dying perf_event CSS gets queued for offline after root destruction 4. Root destruction waits for offline completion, but offline work is blocked behind root destruction in cgroup_destroy_wq (max_active=1) Solution: Split cgroup_destroy_wq into three dedicated workqueues: cgroup_offline_wq – Handles CSS offline operations cgroup_release_wq – Manages resource release cgroup_free_wq – Performs final memory deallocation This separation eliminates blocking in the CSS free path while waiting for offline operations to complete. [1] https://github.com/linux-test-project/ltp/blob/master/runtest/controllers

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
0.0
Advisory evidence
No linked advisory details stored yet
Recommended actionPatch only the product branches with a verified fix

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority. Verified remediation exists for at least one product or source, but 26 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
01

What, why and how

In the Linux kernel, the following vulnerability has been resolved: cgroup: split cgroup_destroy_wq into 3 workqueues A hung task can occur during [1] LTP cgroup testing when repeatedly mounting/unmounting perf_event and net_prio controllers with systemd.unified_cgroup_hierarchy=1. The hang manifests in cgroup_lock_and_drain_offline() during root destruction. Related case: cgroup_fj_function_perf_event cgroup_fj_function.sh perf_event cgroup_fj_function_net_prio cgroup_fj_function.sh net_prio Call Trace: cgroup_lock_and_drain_offline+0x14c/0x1e8 cgroup_destroy_root+0x3c/0x2c0 css_free_rwork_fn+0x248/0x338 process_one_work+0x16c/0x3b8 worker_thread+0x22c/0x3b0 kthread+0xec/0x100 ret_from_fork+0x10/0x20 Root Cause: CPU0 CPU1 mount perf_event umount net_prio cgroup1_get_tree cgroup_kill_sb rebind_subsystems // root destruction enqueues // cgroup_destroy_wq // kill all perf_event css // one perf_event css A is dying // css A offline enqueues cgroup_destroy_wq // root destruction will be executed first css_free_rwork_fn cgroup_destroy_root cgroup_lock_and_drain_offline // some perf descendants are dying // cgroup_destroy_wq max_active = 1 // waiting for css A to die Problem scenario: 1. CPU0 mounts perf_event (rebind_subsystems) 2. CPU1 unmounts net_prio (cgroup_kill_sb), queuing root destruction work 3. A dying perf_event CSS gets queued for offline after root destruction 4. Root destruction waits for offline completion, but offline work is blocked behind root destruction in cgroup_destroy_wq (max_active=1) Solution: Split cgroup_destroy_wq into three dedicated workqueues: cgroup_offline_wq – Handles CSS offline operations cgroup_release_wq – Manages resource release cgroup_free_wq – Performs final memory deallocation This separation eliminates blocking in the CSS free path while waiting for offline operations to complete. [1] https://github.com/linux-test-project/ltp/blob/master/runtest/controllers

What

In the Linux kernel, the following vulnerability has been resolved: cgroup: split cgroup_destroy_wq into 3 workqueues A hung task can occur during [1] LTP cgroup testing when repeatedly mounting/unmounting perf_event and net_prio controllers with systemd.unified_cgroup_hierarchy=1. The hang manifests in cgroup_lock_and_drain_offline() during root destruction. Related case: cgroup_fj_function_perf_event cgroup_fj_function.sh perf_event cgroup_fj_function_net_prio cgroup_fj_function.sh net_prio Call Trace: cgroup_lock_and_drain_offline+0x14c/0x1e8 cgroup_destroy_root+0x3c/0x2c0 css_free_rwork_fn+0x248/0x338 process_one_work+0x16c/0x3b8 worker_thread+0x22c/0x3b0 kthread+0xec/0x100 ret_from_fork+0x10/0x20 Root Cause: CPU0 CPU1 mount perf_event umount net_prio cgroup1_get_tree cgroup_kill_sb rebind_subsystems // root destruction enqueues // cgroup_destroy_wq // kill all perf_event css // one perf_event css A is dying // css A offline enqueues cgroup_destroy_wq // root destruction will be executed first css_free_rwork_fn cgroup_destroy_root cgroup_lock_and_drain_offline // some perf descendants are dying // cgroup_destroy_wq max_active = 1 // waiting for css A to die Problem scenario: 1. CPU0 mounts perf_event (rebind_subsystems) 2. CPU1 unmounts net_prio (cgroup_kill_sb), queuing root destruction work 3. A dying perf_event CSS gets queued for offline after root destruction 4. Root destruction waits for offline completion, but offline work is blocked behind root destruction in cgroup_destroy_wq (max_active=1) Solution: Split cgroup_destroy_wq into three dedicated workqueues: cgroup_offline_wq – Handles CSS offline operations cgroup_release_wq – Manages resource release cgroup_free_wq – Performs final memory deallocation This separation eliminates blocking in the CSS free path while waiting for offline operations to complete. [1] https://github.com/linux-test-project/ltp/blob/master/runtest/controllers

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

In the Linux kernel, the following vulnerability has been resolved: cgroup: split cgroup_destroy_wq into 3 workqueues A hung task can occur during [1] LTP cgroup testing when repeatedly mounting/unmounting perf_event and net_prio controllers with systemd.unified_cgroup_hierarchy=1. The hang manifests in cgroup_lock_and_drain_offline() during root destruction. Related case: cgroup_fj_function_perf_event cgroup_fj_function.sh perf_event cgroup_fj_function_net_prio cgroup_fj_function.sh net_prio Call Trace: cgroup_lock_and_drain_offline+0x14c/0x1e8 cgroup_destroy_root+0x3c/0x2c0 css_free_rwork_fn+0x248/0x338 process_one_work+0x16c/0x3b8 worker_thread+0x22c/0x3b0 kthread+0xec/0x100 ret_from_fork+0x10/0x20 Root Cause: CPU0 CPU1 mount perf_event umount net_prio cgroup1_get_tree cgroup_kill_sb rebind_subsystems // root destruction enqueues // cgroup_destroy_wq // kill all perf_event css // one perf_event css A is dying // css A offline enqueues cgroup_destroy_wq // root destruction will be executed first css_free_rwork_fn cgroup_destroy_root cgroup_lock_and_drain_offline // some perf descendants are dying // cgroup_destroy_wq max_active = 1 // waiting for css A to die Problem scenario: 1. CPU0 mounts perf_event (rebind_subsystems) 2. CPU1 unmounts net_prio (cgroup_kill_sb), queuing root destruction work 3. A dying perf_event CSS gets queued for offline after root destruction 4. Root destruction waits for offline completion, but offline work is blocked behind root destruction in cgroup_destroy_wq (max_active=1) Solution: Split cgroup_destroy_wq into three dedicated workqueues: cgroup_offline_wq – Handles CSS offline operations cgroup_release_wq – Manages resource release cgroup_free_wq – Performs final memory deallocation This separation eliminates blocking in the CSS free path while waiting for offline operations to complete. [1] https://github.com/linux-test-project/ltp/blob/master/runtest/controllers

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
local access → vulnerable operation → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Local
Privileges required
Low: a basic authenticated account is required
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration.
CWE not yet assigned
CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2025-32383Official EUVD mapping

In the Linux kernel, the following vulnerability has been resolved: cgroup: split cgroup_destroy_wq into 3 workqueues A hung task can occur during [1] LTP cgroup testing when repeatedly mounting/unmounting perf_event and net_prio controllers with systemd.unified_cgroup_hierarchy=1. The hang manifests in cgroup_lock_and_drain_offline() during root destruction. Related case: cgroup_fj_function_perf_event cgroup_fj_function.sh perf_event cgroup_fj_function_net_prio cgroup_fj_function.sh net_prio Call Trace: cgroup_lock_and_drain_offline+0x14c/0x1e8 cgroup_destroy_root+0x3c/0x2c0 css_free_rwork_fn+0x248/0x338 process_one_work+0x16c/0x3b8 worker_thread+0x22c/0x3b0 kthread+0xec/0x100 ret_from_fork+0x10/0x20 Root Cause: CPU0 CPU1 mount perf_event umount net_prio cgroup1_get_tree cgroup_kill_sb rebind_subsystems // root destruction enqueues // cgroup_destroy_wq // kill all perf_event css // one perf_event css A is dying // css A offline enqueues cgroup_destroy_wq // root destruction will be executed first css_free_rwork_fn cgroup_destroy_root cgroup_lock_and_drain_offline // some perf descendants are dying // cgroup_destroy_wq max_active = 1 // waiting for css A to die Problem scenario: 1. CPU0 mounts perf_event (rebind_subsystems) 2. CPU1 unmounts net_prio (cgroup_kill_sb), queuing root destruction work 3. A dying perf_event CSS gets queued for offline after root destruction 4. Root destruction waits for offline completion, but offline work is blocked behind root destruction in cgroup_destroy_wq (max_active=1) Solution: Split cgroup_destroy_wq into three dedicated workqueues: cgroup_offline_wq – Handles CSS offline operations cgroup_release_wq – Manages resource release cgroup_free_wq – Performs final memory deallocation This separation eliminates blocking in the CSS free path while waiting for offline operations to complete. [1] https://github.com/linux-test-project/ltp/blob/master/runtest/controllers

Official EUVD record ↗
BSI · German · WID-SEC-2025-2194Linux Kernel: Mehrere Schwachstellen

Ein lokaler Angreifer kann mehrere Schwachstellen in Linux Kernel ausnutzen, um nicht näher spezifizierte Angriffe durchzuführen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20251008Security Bulletin 08 Oct 2025

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 08 Oct 2025, published on 8 October 2025. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0880Multiples vulnérabilités dans les produits Siemens

25-23136, CVE-2025-23143, CVE-2025-37785, CVE-2025-37909, CVE-2025-37917, CVE-2025-37945, CVE-2025-37959, CVE-2025-37964, CVE-2025-37972, CVE-2025-37980, CVE-2025-38125, CVE-2025-38162, CVE-2025-38192, CVE-2025-38201, CVE-2025-38232, CVE-2025-38322, CVE-2025-38591, CVE-2025-38614, CVE-2025-38681, CVE-2025-38704, CVE-2025-38721, CVE-2025-38725, CVE-2025-38727, CVE-2025-38732, CVE-2025-38736, CVE-2025-39681, CVE-2025-39691, CVE-2025-39721, CVE-2025-39748, CVE-2025-39756, CVE-2025-39764, CVE-2025-39770, CVE-2025-39773, CVE-2025-39782, CVE-2025-39795, CVE-2025-39826, CVE-2025-39827, CVE-2025-39845, CVE-2025-39866, CVE-2025-39871, CVE-2025-39931, CVE-2025-39953, CVE-2025-39955, CVE-2025-39964, CVE-2025-39977, CVE-2025-39978, CVE-2025-39980, CVE-2025-40022, CVE-2025-40070, CVE-2025-40078, CVE-2025-40080, CVE-2025-40105, CVE-2025-40135, CVE-2025-40149, CVE-2025-40219, CVE-2025-40261, CVE-2025-40300, CVE-2025-61984, CVE-2025-61985, CVE-2025-68206, CVE-2025-68261, CVE-2025-68264, CVE-2025-68265, CVE-2025-68266, CVE-2025-68291, CVE-2025-68337, CVE-2025-68349, CVE-2025-68363, CVE-2025-68371, CVE-2025-68724, CVE-2025-68725, CVE-2025-68742, CVE-2025-68764, CVE-2025-68773, CVE-2025-68776, CVE-2025-68782, CVE-2025-68787, CVE-2025-68788, CVE-2025-68798, CVE-2025-68803, CVE-2025-68814, CVE-2025-68816, CVE-2025

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0602Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2025-39943 Référence CVE CVE-2025-39944 https://www.cve.org/CVERecord?id=CVE-2025-39944 Référence CVE CVE-2025-39945 https://www.cve.org/CVERecord?id=CVE-2025-39945 Référence CVE CVE-2025-39947 https://www.cve.org/CVERecord?id=CVE-2025-39947 Référence CVE CVE-2025-39948 https://www.cve.org/CVERecord?id=CVE-2025-39948 Référence CVE CVE-2025-39949 https://www.cve.org/CVERecord?id=CVE-2025-39949 Référence CVE CVE-2025-39950 https://www.cve.org/CVERecord?id=CVE-2025-39950 Référence CVE CVE-2025-39951 https://www.cve.org/CVERecord?id=CVE-2025-39951 Référence CVE CVE-2025-39952 https://www.cve.org/CVERecord?id=CVE-2025-39952 Référence CVE CVE-2025-39953 https://www.cve.org/CVERecord?id=CVE-2025-39953 Référence CVE CVE-2025-39955 https://www.cve.org/CVERecord?id=CVE-2025-39955 Référence CVE CVE-2025-39957 https://www.cve.org/CVERecord?id=CVE-2025-39957 Référence CVE CVE-2025-39961 https://www.cve.org/CVERecord?id=CVE-2025-39961 Référence CVE CVE-2025-39965 https://www.cve.org/CVERecord?id=CVE-2025-39965 Référence CVE CVE-2025-39967 https://www.cve.org/CVERecord?id=CVE-2025-39967 Référence CVE CVE-2025-39968 https://www.cve.org/CVERecord?id=CVE-2025-39968 Référence CVE CVE-2025-39969 https://www.cve.org/CVERecord?id=CVE-2025-39969 Référence CVE CVE-2025-39970 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0545Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2025-39911 Référence CVE CVE-2025-39913 https://www.cve.org/CVERecord?id=CVE-2025-39913 Référence CVE CVE-2025-39923 https://www.cve.org/CVERecord?id=CVE-2025-39923 Référence CVE CVE-2025-39934 https://www.cve.org/CVERecord?id=CVE-2025-39934 Référence CVE CVE-2025-39937 https://www.cve.org/CVERecord?id=CVE-2025-39937 Référence CVE CVE-2025-39943 https://www.cve.org/CVERecord?id=CVE-2025-39943 Référence CVE CVE-2025-39945 https://www.cve.org/CVERecord?id=CVE-2025-39945 Référence CVE CVE-2025-39949 https://www.cve.org/CVERecord?id=CVE-2025-39949 Référence CVE CVE-2025-39951 https://www.cve.org/CVERecord?id=CVE-2025-39951 Référence CVE CVE-2025-39953 https://www.cve.org/CVERecord?id=CVE-2025-39953 Référence CVE CVE-2025-39955 https://www.cve.org/CVERecord?id=CVE-2025-39955 Référence CVE CVE-2025-39967 https://www.cve.org/CVERecord?id=CVE-2025-39967 Référence CVE CVE-2025-39968 https://www.cve.org/CVERecord?id=CVE-2025-39968 Référence CVE CVE-2025-39969 https://www.cve.org/CVERecord?id=CVE-2025-39969 Référence CVE CVE-2025-39970 https://www.cve.org/CVERecord?id=CVE-2025-39970 Référence CVE CVE-2025-39971 https://www.cve.org/CVERecord?id=CVE-2025-39971 Référence CVE CVE-2025-39972 https://www.cve.org/CVERecord?id=CVE-2025-39972 Référence CVE CVE-2025-39973 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0453Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2025-39911 Référence CVE CVE-2025-39913 https://www.cve.org/CVERecord?id=CVE-2025-39913 Référence CVE CVE-2025-39923 https://www.cve.org/CVERecord?id=CVE-2025-39923 Référence CVE CVE-2025-39934 https://www.cve.org/CVERecord?id=CVE-2025-39934 Référence CVE CVE-2025-39937 https://www.cve.org/CVERecord?id=CVE-2025-39937 Référence CVE CVE-2025-39943 https://www.cve.org/CVERecord?id=CVE-2025-39943 Référence CVE CVE-2025-39945 https://www.cve.org/CVERecord?id=CVE-2025-39945 Référence CVE CVE-2025-39949 https://www.cve.org/CVERecord?id=CVE-2025-39949 Référence CVE CVE-2025-39951 https://www.cve.org/CVERecord?id=CVE-2025-39951 Référence CVE CVE-2025-39953 https://www.cve.org/CVERecord?id=CVE-2025-39953 Référence CVE CVE-2025-39955 https://www.cve.org/CVERecord?id=CVE-2025-39955 Référence CVE CVE-2025-39967 https://www.cve.org/CVERecord?id=CVE-2025-39967 Référence CVE CVE-2025-39968 https://www.cve.org/CVERecord?id=CVE-2025-39968 Référence CVE CVE-2025-39969 https://www.cve.org/CVERecord?id=CVE-2025-39969 Référence CVE CVE-2025-39970 https://www.cve.org/CVERecord?id=CVE-2025-39970 Référence CVE CVE-2025-39971 https://www.cve.org/CVERecord?id=CVE-2025-39971 Référence CVE CVE-2025-39972 https://www.cve.org/CVERecord?id=CVE-2025-39972 Référence CVE CVE-2025-39973 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0421Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2025-39943 Référence CVE CVE-2025-39944 https://www.cve.org/CVERecord?id=CVE-2025-39944 Référence CVE CVE-2025-39945 https://www.cve.org/CVERecord?id=CVE-2025-39945 Référence CVE CVE-2025-39947 https://www.cve.org/CVERecord?id=CVE-2025-39947 Référence CVE CVE-2025-39948 https://www.cve.org/CVERecord?id=CVE-2025-39948 Référence CVE CVE-2025-39949 https://www.cve.org/CVERecord?id=CVE-2025-39949 Référence CVE CVE-2025-39950 https://www.cve.org/CVERecord?id=CVE-2025-39950 Référence CVE CVE-2025-39951 https://www.cve.org/CVERecord?id=CVE-2025-39951 Référence CVE CVE-2025-39952 https://www.cve.org/CVERecord?id=CVE-2025-39952 Référence CVE CVE-2025-39953 https://www.cve.org/CVERecord?id=CVE-2025-39953 Référence CVE CVE-2025-39955 https://www.cve.org/CVERecord?id=CVE-2025-39955 Référence CVE CVE-2025-39957 https://www.cve.org/CVERecord?id=CVE-2025-39957 Référence CVE CVE-2025-39961 https://www.cve.org/CVERecord?id=CVE-2025-39961 Référence CVE CVE-2025-39965 https://www.cve.org/CVERecord?id=CVE-2025-39965 Référence CVE CVE-2025-39967 https://www.cve.org/CVERecord?id=CVE-2025-39967 Référence CVE CVE-2025-39968 https://www.cve.org/CVERecord?id=CVE-2025-39968 Référence CVE CVE-2025-39969 https://www.cve.org/CVERecord?id=CVE-2025-39969 Référence CVE CVE-2025-39970 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0397Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2025-39943 Référence CVE CVE-2025-39944 https://www.cve.org/CVERecord?id=CVE-2025-39944 Référence CVE CVE-2025-39945 https://www.cve.org/CVERecord?id=CVE-2025-39945 Référence CVE CVE-2025-39947 https://www.cve.org/CVERecord?id=CVE-2025-39947 Référence CVE CVE-2025-39948 https://www.cve.org/CVERecord?id=CVE-2025-39948 Référence CVE CVE-2025-39949 https://www.cve.org/CVERecord?id=CVE-2025-39949 Référence CVE CVE-2025-39950 https://www.cve.org/CVERecord?id=CVE-2025-39950 Référence CVE CVE-2025-39951 https://www.cve.org/CVERecord?id=CVE-2025-39951 Référence CVE CVE-2025-39952 https://www.cve.org/CVERecord?id=CVE-2025-39952 Référence CVE CVE-2025-39953 https://www.cve.org/CVERecord?id=CVE-2025-39953 Référence CVE CVE-2025-39955 https://www.cve.org/CVERecord?id=CVE-2025-39955 Référence CVE CVE-2025-39957 https://www.cve.org/CVERecord?id=CVE-2025-39957 Référence CVE CVE-2025-39961 https://www.cve.org/CVERecord?id=CVE-2025-39961 Référence CVE CVE-2025-39965 https://www.cve.org/CVERecord?id=CVE-2025-39965 Référence CVE CVE-2025-39967 https://www.cve.org/CVERecord?id=CVE-2025-39967 Référence CVE CVE-2025-39968 https://www.cve.org/CVERecord?id=CVE-2025-39968 Référence CVE CVE-2025-39969 https://www.cve.org/CVERecord?id=CVE-2025-39969 Référence CVE CVE-2025-39970 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0371Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2025-39943 Référence CVE CVE-2025-39944 https://www.cve.org/CVERecord?id=CVE-2025-39944 Référence CVE CVE-2025-39945 https://www.cve.org/CVERecord?id=CVE-2025-39945 Référence CVE CVE-2025-39947 https://www.cve.org/CVERecord?id=CVE-2025-39947 Référence CVE CVE-2025-39948 https://www.cve.org/CVERecord?id=CVE-2025-39948 Référence CVE CVE-2025-39949 https://www.cve.org/CVERecord?id=CVE-2025-39949 Référence CVE CVE-2025-39950 https://www.cve.org/CVERecord?id=CVE-2025-39950 Référence CVE CVE-2025-39951 https://www.cve.org/CVERecord?id=CVE-2025-39951 Référence CVE CVE-2025-39952 https://www.cve.org/CVERecord?id=CVE-2025-39952 Référence CVE CVE-2025-39953 https://www.cve.org/CVERecord?id=CVE-2025-39953 Référence CVE CVE-2025-39955 https://www.cve.org/CVERecord?id=CVE-2025-39955 Référence CVE CVE-2025-39957 https://www.cve.org/CVERecord?id=CVE-2025-39957 Référence CVE CVE-2025-39961 https://www.cve.org/CVERecord?id=CVE-2025-39961 Référence CVE CVE-2025-39965 https://www.cve.org/CVERecord?id=CVE-2025-39965 Référence CVE CVE-2025-39967 https://www.cve.org/CVERecord?id=CVE-2025-39967 Référence CVE CVE-2025-39968 https://www.cve.org/CVERecord?id=CVE-2025-39968 Référence CVE CVE-2025-39969 https://www.cve.org/CVERecord?id=CVE-2025-39969 Référence CVE CVE-2025-39970 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0331Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2025-39943 Référence CVE CVE-2025-39944 https://www.cve.org/CVERecord?id=CVE-2025-39944 Référence CVE CVE-2025-39945 https://www.cve.org/CVERecord?id=CVE-2025-39945 Référence CVE CVE-2025-39947 https://www.cve.org/CVERecord?id=CVE-2025-39947 Référence CVE CVE-2025-39948 https://www.cve.org/CVERecord?id=CVE-2025-39948 Référence CVE CVE-2025-39949 https://www.cve.org/CVERecord?id=CVE-2025-39949 Référence CVE CVE-2025-39950 https://www.cve.org/CVERecord?id=CVE-2025-39950 Référence CVE CVE-2025-39951 https://www.cve.org/CVERecord?id=CVE-2025-39951 Référence CVE CVE-2025-39952 https://www.cve.org/CVERecord?id=CVE-2025-39952 Référence CVE CVE-2025-39953 https://www.cve.org/CVERecord?id=CVE-2025-39953 Référence CVE CVE-2025-39955 https://www.cve.org/CVERecord?id=CVE-2025-39955 Référence CVE CVE-2025-39957 https://www.cve.org/CVERecord?id=CVE-2025-39957 Référence CVE CVE-2025-39961 https://www.cve.org/CVERecord?id=CVE-2025-39961 Référence CVE CVE-2025-39965 https://www.cve.org/CVERecord?id=CVE-2025-39965 Référence CVE CVE-2025-39967 https://www.cve.org/CVERecord?id=CVE-2025-39967 Référence CVE CVE-2025-39968 https://www.cve.org/CVERecord?id=CVE-2025-39968 Référence CVE CVE-2025-39969 https://www.cve.org/CVERecord?id=CVE-2025-39969 Référence CVE CVE-2025-39970 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0218Multiples vulnérabilités dans les produits VMware

d?id=CVE-2025-39913 Référence CVE CVE-2025-39923 https://www.cve.org/CVERecord?id=CVE-2025-39923 Référence CVE CVE-2025-39934 https://www.cve.org/CVERecord?id=CVE-2025-39934 Référence CVE CVE-2025-39937 https://www.cve.org/CVERecord?id=CVE-2025-39937 Référence CVE CVE-2025-39943 https://www.cve.org/CVERecord?id=CVE-2025-39943 Référence CVE CVE-2025-39945 https://www.cve.org/CVERecord?id=CVE-2025-39945 Référence CVE CVE-2025-39946 https://www.cve.org/CVERecord?id=CVE-2025-39946 Référence CVE CVE-2025-39949 https://www.cve.org/CVERecord?id=CVE-2025-39949 Référence CVE CVE-2025-39951 https://www.cve.org/CVERecord?id=CVE-2025-39951 Référence CVE CVE-2025-39953 https://www.cve.org/CVERecord?id=CVE-2025-39953 Référence CVE CVE-2025-39955 https://www.cve.org/CVERecord?id=CVE-2025-39955 Référence CVE CVE-2025-39967 https://www.cve.org/CVERecord?id=CVE-2025-39967 Référence CVE CVE-2025-39968 https://www.cve.org/CVERecord?id=CVE-2025-39968 Référence CVE CVE-2025-39969 https://www.cve.org/CVERecord?id=CVE-2025-39969 Référence CVE CVE-2025-39970 https://www.cve.org/CVERecord?id=CVE-2025-39970 Référence CVE CVE-2025-39971 https://www.cve.org/CVERecord?id=CVE-2025-39971 Référence CVE CVE-2025-39972 https://www.cve.org/CVERecord?id=CVE-2025-39972 Référence CVE CVE-2025-39973 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0209Multiples vulnérabilités dans les produits VMware

d?id=CVE-2025-39911 Référence CVE CVE-2025-39913 https://www.cve.org/CVERecord?id=CVE-2025-39913 Référence CVE CVE-2025-39923 https://www.cve.org/CVERecord?id=CVE-2025-39923 Référence CVE CVE-2025-39934 https://www.cve.org/CVERecord?id=CVE-2025-39934 Référence CVE CVE-2025-39937 https://www.cve.org/CVERecord?id=CVE-2025-39937 Référence CVE CVE-2025-39943 https://www.cve.org/CVERecord?id=CVE-2025-39943 Référence CVE CVE-2025-39945 https://www.cve.org/CVERecord?id=CVE-2025-39945 Référence CVE CVE-2025-39949 https://www.cve.org/CVERecord?id=CVE-2025-39949 Référence CVE CVE-2025-39951 https://www.cve.org/CVERecord?id=CVE-2025-39951 Référence CVE CVE-2025-39953 https://www.cve.org/CVERecord?id=CVE-2025-39953 Référence CVE CVE-2025-39955 https://www.cve.org/CVERecord?id=CVE-2025-39955 Référence CVE CVE-2025-39967 https://www.cve.org/CVERecord?id=CVE-2025-39967 Référence CVE CVE-2025-39968 https://www.cve.org/CVERecord?id=CVE-2025-39968 Référence CVE CVE-2025-39969 https://www.cve.org/CVERecord?id=CVE-2025-39969 Référence CVE CVE-2025-39970 https://www.cve.org/CVERecord?id=CVE-2025-39970 Référence CVE CVE-2025-39971 https://www.cve.org/CVERecord?id=CVE-2025-39971 Référence CVE CVE-2025-39972 https://www.cve.org/CVERecord?id=CVE-2025-39972 Référence CVE CVE-2025-39973 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0199Multiples vulnérabilités dans les produits VMware

d?id=CVE-2025-39911 Référence CVE CVE-2025-39913 https://www.cve.org/CVERecord?id=CVE-2025-39913 Référence CVE CVE-2025-39923 https://www.cve.org/CVERecord?id=CVE-2025-39923 Référence CVE CVE-2025-39934 https://www.cve.org/CVERecord?id=CVE-2025-39934 Référence CVE CVE-2025-39937 https://www.cve.org/CVERecord?id=CVE-2025-39937 Référence CVE CVE-2025-39943 https://www.cve.org/CVERecord?id=CVE-2025-39943 Référence CVE CVE-2025-39945 https://www.cve.org/CVERecord?id=CVE-2025-39945 Référence CVE CVE-2025-39949 https://www.cve.org/CVERecord?id=CVE-2025-39949 Référence CVE CVE-2025-39951 https://www.cve.org/CVERecord?id=CVE-2025-39951 Référence CVE CVE-2025-39953 https://www.cve.org/CVERecord?id=CVE-2025-39953 Référence CVE CVE-2025-39955 https://www.cve.org/CVERecord?id=CVE-2025-39955 Référence CVE CVE-2025-39967 https://www.cve.org/CVERecord?id=CVE-2025-39967 Référence CVE CVE-2025-39968 https://www.cve.org/CVERecord?id=CVE-2025-39968 Référence CVE CVE-2025-39969 https://www.cve.org/CVERecord?id=CVE-2025-39969 Référence CVE CVE-2025-39970 https://www.cve.org/CVERecord?id=CVE-2025-39970 Référence CVE CVE-2025-39971 https://www.cve.org/CVERecord?id=CVE-2025-39971 Référence CVE CVE-2025-39972 https://www.cve.org/CVERecord?id=CVE-2025-39972 Référence CVE CVE-2025-39973 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0194Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2025-39913 Référence CVE CVE-2025-39923 https://www.cve.org/CVERecord?id=CVE-2025-39923 Référence CVE CVE-2025-39934 https://www.cve.org/CVERecord?id=CVE-2025-39934 Référence CVE CVE-2025-39937 https://www.cve.org/CVERecord?id=CVE-2025-39937 Référence CVE CVE-2025-39943 https://www.cve.org/CVERecord?id=CVE-2025-39943 Référence CVE CVE-2025-39945 https://www.cve.org/CVERecord?id=CVE-2025-39945 Référence CVE CVE-2025-39946 https://www.cve.org/CVERecord?id=CVE-2025-39946 Référence CVE CVE-2025-39949 https://www.cve.org/CVERecord?id=CVE-2025-39949 Référence CVE CVE-2025-39951 https://www.cve.org/CVERecord?id=CVE-2025-39951 Référence CVE CVE-2025-39953 https://www.cve.org/CVERecord?id=CVE-2025-39953 Référence CVE CVE-2025-39955 https://www.cve.org/CVERecord?id=CVE-2025-39955 Référence CVE CVE-2025-39967 https://www.cve.org/CVERecord?id=CVE-2025-39967 Référence CVE CVE-2025-39968 https://www.cve.org/CVERecord?id=CVE-2025-39968 Référence CVE CVE-2025-39969 https://www.cve.org/CVERecord?id=CVE-2025-39969 Référence CVE CVE-2025-39970 https://www.cve.org/CVERecord?id=CVE-2025-39970 Référence CVE CVE-2025-39971 https://www.cve.org/CVERecord?id=CVE-2025-39971 Référence CVE CVE-2025-39972 https://www.cve.org/CVERecord?id=CVE-2025-39972 Référence CVE CVE-2025-39973 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0169Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2025-39913 Référence CVE CVE-2025-39923 https://www.cve.org/CVERecord?id=CVE-2025-39923 Référence CVE CVE-2025-39934 https://www.cve.org/CVERecord?id=CVE-2025-39934 Référence CVE CVE-2025-39937 https://www.cve.org/CVERecord?id=CVE-2025-39937 Référence CVE CVE-2025-39943 https://www.cve.org/CVERecord?id=CVE-2025-39943 Référence CVE CVE-2025-39945 https://www.cve.org/CVERecord?id=CVE-2025-39945 Référence CVE CVE-2025-39946 https://www.cve.org/CVERecord?id=CVE-2025-39946 Référence CVE CVE-2025-39949 https://www.cve.org/CVERecord?id=CVE-2025-39949 Référence CVE CVE-2025-39951 https://www.cve.org/CVERecord?id=CVE-2025-39951 Référence CVE CVE-2025-39953 https://www.cve.org/CVERecord?id=CVE-2025-39953 Référence CVE CVE-2025-39955 https://www.cve.org/CVERecord?id=CVE-2025-39955 Référence CVE CVE-2025-39967 https://www.cve.org/CVERecord?id=CVE-2025-39967 Référence CVE CVE-2025-39968 https://www.cve.org/CVERecord?id=CVE-2025-39968 Référence CVE CVE-2025-39969 https://www.cve.org/CVERecord?id=CVE-2025-39969 Référence CVE CVE-2025-39970 https://www.cve.org/CVERecord?id=CVE-2025-39970 Référence CVE CVE-2025-39971 https://www.cve.org/CVERecord?id=CVE-2025-39971 Référence CVE CVE-2025-39972 https://www.cve.org/CVERecord?id=CVE-2025-39972 Référence CVE CVE-2025-39973 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-1136Multiples vulnérabilités dans le noyau Linux de Debian LTS

d?id=CVE-2025-39885 Référence CVE CVE-2025-39907 https://www.cve.org/CVERecord?id=CVE-2025-39907 Référence CVE CVE-2025-39911 https://www.cve.org/CVERecord?id=CVE-2025-39911 Référence CVE CVE-2025-39913 https://www.cve.org/CVERecord?id=CVE-2025-39913 Référence CVE CVE-2025-39923 https://www.cve.org/CVERecord?id=CVE-2025-39923 Référence CVE CVE-2025-39937 https://www.cve.org/CVERecord?id=CVE-2025-39937 Référence CVE CVE-2025-39945 https://www.cve.org/CVERecord?id=CVE-2025-39945 Référence CVE CVE-2025-39949 https://www.cve.org/CVERecord?id=CVE-2025-39949 Référence CVE CVE-2025-39951 https://www.cve.org/CVERecord?id=CVE-2025-39951 Référence CVE CVE-2025-39953 https://www.cve.org/CVERecord?id=CVE-2025-39953 Référence CVE CVE-2025-39955 https://www.cve.org/CVERecord?id=CVE-2025-39955 Référence CVE CVE-2025-39964 https://www.cve.org/CVERecord?id=CVE-2025-39964 Référence CVE CVE-2025-39967 https://www.cve.org/CVERecord?id=CVE-2025-39967 Référence CVE CVE-2025-39968 https://www.cve.org/CVERecord?id=CVE-2025-39968 Référence CVE CVE-2025-39969 https://www.cve.org/CVERecord?id=CVE-2025-39969 Référence CVE CVE-2025-39970 https://www.cve.org/CVERecord?id=CVE-2025-39970 Référence CVE CVE-2025-39971 https://www.cve.org/CVERecord?id=CVE-2025-39971 Référence CVE CVE-2025-39972 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-1048Multiples vulnérabilités dans le noyau Linux de Debian LTS

d?id=CVE-2025-39937 Référence CVE CVE-2025-39938 https://www.cve.org/CVERecord?id=CVE-2025-39938 Référence CVE CVE-2025-39942 https://www.cve.org/CVERecord?id=CVE-2025-39942 Référence CVE CVE-2025-39943 https://www.cve.org/CVERecord?id=CVE-2025-39943 Référence CVE CVE-2025-39944 https://www.cve.org/CVERecord?id=CVE-2025-39944 Référence CVE CVE-2025-39945 https://www.cve.org/CVERecord?id=CVE-2025-39945 Référence CVE CVE-2025-39946 https://www.cve.org/CVERecord?id=CVE-2025-39946 Référence CVE CVE-2025-39949 https://www.cve.org/CVERecord?id=CVE-2025-39949 Référence CVE CVE-2025-39951 https://www.cve.org/CVERecord?id=CVE-2025-39951 Référence CVE CVE-2025-39953 https://www.cve.org/CVERecord?id=CVE-2025-39953 Référence CVE CVE-2025-39955 https://www.cve.org/CVERecord?id=CVE-2025-39955 Référence CVE CVE-2025-39957 https://www.cve.org/CVERecord?id=CVE-2025-39957 Référence CVE CVE-2025-39964 https://www.cve.org/CVERecord?id=CVE-2025-39964 Référence CVE CVE-2025-39967 https://www.cve.org/CVERecord?id=CVE-2025-39967 Référence CVE CVE-2025-39968 https://www.cve.org/CVERecord?id=CVE-2025-39968 Référence CVE CVE-2025-39969 https://www.cve.org/CVERecord?id=CVE-2025-39969 Référence CVE CVE-2025-39970 https://www.cve.org/CVERecord?id=CVE-2025-39970 Référence CVE CVE-2025-39971 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-1010Multiples vulnérabilités dans le noyau Linux de Debian

d?id=CVE-2025-39937 Référence CVE CVE-2025-39938 https://www.cve.org/CVERecord?id=CVE-2025-39938 Référence CVE CVE-2025-39942 https://www.cve.org/CVERecord?id=CVE-2025-39942 Référence CVE CVE-2025-39943 https://www.cve.org/CVERecord?id=CVE-2025-39943 Référence CVE CVE-2025-39944 https://www.cve.org/CVERecord?id=CVE-2025-39944 Référence CVE CVE-2025-39945 https://www.cve.org/CVERecord?id=CVE-2025-39945 Référence CVE CVE-2025-39946 https://www.cve.org/CVERecord?id=CVE-2025-39946 Référence CVE CVE-2025-39949 https://www.cve.org/CVERecord?id=CVE-2025-39949 Référence CVE CVE-2025-39951 https://www.cve.org/CVERecord?id=CVE-2025-39951 Référence CVE CVE-2025-39953 https://www.cve.org/CVERecord?id=CVE-2025-39953 Référence CVE CVE-2025-39955 https://www.cve.org/CVERecord?id=CVE-2025-39955 Référence CVE CVE-2025-39957 https://www.cve.org/CVERecord?id=CVE-2025-39957 Référence CVE CVE-2025-39964 https://www.cve.org/CVERecord?id=CVE-2025-39964 Référence CVE CVE-2025-39967 https://www.cve.org/CVERecord?id=CVE-2025-39967 Référence CVE CVE-2025-39968 https://www.cve.org/CVERecord?id=CVE-2025-39968 Référence CVE CVE-2025-39969 https://www.cve.org/CVERecord?id=CVE-2025-39969 Référence CVE CVE-2025-39970 https://www.cve.org/CVERecord?id=CVE-2025-39970 Référence CVE CVE-2025-39971 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0899Multiples vulnérabilités dans les produits Microsoft

CVE-2025-39932 du 05 octobre 2025 Bulletin de sécurité Microsoft CVE-2025-39934 du 05 octobre 2025 Bulletin de sécurité Microsoft CVE-2025-39937 du 05 octobre 2025 Bulletin de sécurité Microsoft CVE-2025-39938 du 05 octobre 2025 Bulletin de sécurité Microsoft CVE-2025-39940 du 05 octobre 2025 Bulletin de sécurité Microsoft CVE-2025-39942 du 05 octobre 2025 Bulletin de sécurité Microsoft CVE-2025-39945 du 05 octobre 2025 Bulletin de sécurité Microsoft CVE-2025-39946 du 05 octobre 2025 Bulletin de sécurité Microsoft CVE-2025-39947 du 05 octobre 2025 Bulletin de sécurité Microsoft CVE-2025-39949 du 05 octobre 2025 Bulletin de sécurité Microsoft CVE-2025-39953 du 05 octobre 2025 Bulletin de sécurité Microsoft CVE-2025-55551 du 05 octobre 2025 Bulletin de sécurité Microsoft CVE-2025-55552 du 05 octobre 2025 Bulletin de sécurité Microsoft CVE-2025-55554 du 05 octobre 2025 Bulletin de sécurité Microsoft CVE-2022-50502 du 06 octobre 2025 Bulletin de sécurité Microsoft CVE-2025-10729 du 07 octobre 2025 Bulletin de sécurité Microsoft CVE-2025-11234 du 07 octobre 2025 Bulletin de sécurité Microsoft CVE-2022-48816 du 08 octobre 2025 Bulletin de sécurité Microsoft CVE-2024-40966 du 08 octobre 2025 Bulletin de sécurité Microsoft CVE-2024-40989 du 08 octobre 2025 Bulletin de sécurité Microsoft CVE-2024-56641

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2025-025226LinuxのLinux Kernelにおける不特定の脆弱性

Linuxカーネルにおいて、cgroup_destroy_wqを3つのワークキューに分割することで、systemd.unified_cgroup_hierarchy=1の状態でperf_eventおよびnet_prioコントローラーのマウントとアンマウントを繰り返したときに発生するタスクのハング問題を解決しました。これは、ルート破棄時のcgroup_lock_and_drain_offline()でのデッドロックに起因しており、CPU間での操作競合が原因です。具体的には、perf_eventのCSS削除とnet_prioのアンマウントが同時に行われ、cgroup_destroy_wqのmax_activeが1であるためにオフライン処理の完了待ちでブロックされていました。修正により、cgroup_offline_wq、cgroup_release_wq、cgroup_free_wqの3つの専用ワークキューに分割し、オフライン操作とリソース解放およびメモリ解放を並行して行えるようにしてこの問題を防止しています。

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix availability varies by product
Affected
Fixed
Linux: < 4.6, 5.4.300 ≤ 5.4.*, 5.10.245 ≤ 5.10.*, 5.15.194 ≤ 5.15.*, 6.1.154 ≤ 6.1.*, 6.6.108 ≤ 6.6.*, 6.12.49 ≤ 6.12.*, 6.16.9 ≤ 6.16.*, 6.17 ≤ *
Action
Use the product-specific evidence above. Patch only products with a verified fixed release, and keep every affected or under-investigation state without a matching fix in the remediation queue.
Workaround
Limit access to the interactive shell of the additional GNU/Linux subssytem to trusted personnel only.
04

Evidence and provenance

Published 4 Oct 2025 · Last source change 8 Sept 2026, 08:42 UTC · CWE not yet assigned

CVE recordCVE.org · 5.2
CVSS sourceNIST NVD
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2025-32383
Product sourceVendor CSAF · Siemens ProductCERT
Remediation sourceVendor CSAF · Siemens ProductCERT
CWE sourceUnavailable
NVD statusNVD modified after enrichment

Missing structured fields: CWE classification. Missing data is not evidence of low risk; review the primary advisory.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    334c3679ec4b2b113c35ebe37d2018b112dd5013 < cabadd7fd15f97090f752fd22dd7f876a0dc3dc4; 334c3679ec4b2b113c35ebe37d2018b112dd5013 < a0c896bda7077aa5005473e2c5b3c27173313b4c; 334c3679ec4b2b113c35ebe37d2018b112dd5013 < f2795d1b92506e3adf52a298f7181032a1525e04; 334c3679ec4b2b113c35ebe37d2018b112dd5013 < 993049c9b1355c78918344a6403427d53f9ee700; 334c3679ec4b2b113c35ebe37d2018b112dd5013 < 4a1e3ec28e8062cd9f339aa6a942df9c5bcb6811; 334c3679ec4b2b113c35ebe37d2018b112dd5013 < ded4d207a3209a834b6831ceec7f39b934c74802; 334c3679ec4b2b113c35ebe37d2018b112dd5013 < 05e0b03447cf215ec384210441b34b7a3b16e8b0; 334c3679ec4b2b113c35ebe37d2018b112dd5013 < 79f919a89c9d06816dbdbbd168fa41d27411a7f9 · Fixed: < 4.6; 5.4.300 ≤ 5.4.*; 5.10.245 ≤ 5.10.*; 5.15.194 ≤ 5.15.*; 6.1.154 ≤ 6.1.*; 6.6.108 ≤ 6.6.*; 6.12.49 ≤ 6.12.*; 6.16.9 ≤ 6.16.*
    After
    Linux: 334c3679ec4b2b113c35ebe37d2018b112dd5013 < cabadd7fd15f97090f752fd22dd7f876a0dc3dc4, 334c3679ec4b2b113c35ebe37d2018b112dd5013 < a0c896bda7077aa5005473e2c5b3c27173313b4c, 334c3679ec4b2b113c35ebe37d2018b112dd5013 < f2795d1b92506e3adf52a298f7181032a1525e04, 334c3679ec4b2b113c35ebe37d2018b112dd5013 < 993049c9b1355c78918344a6403427d53f9ee700, 334c3679ec4b2b113c35ebe37d2018b112dd5013 < 4a1e3ec28e8062cd9f339aa6a942df9c5bcb6811, 334c3679ec4b2b113c35ebe37d2018b112dd5013 < ded4d207a3209a834b6831ceec7f39b934c74802, 334c3679ec4b2b113c35ebe37d2018b112dd5013 < 05e0b03447cf215ec384210441b34b7a3b16e8b0, 334c3679ec4b2b113c35ebe37d2018b112dd5013 < 79f919a89c9d06816dbdbbd168fa41d27411a7f9, 4.6 · Fixed: Linux: < 4.6, 5.4.300 ≤ 5.4.*, 5.10.245 ≤ 5.10.*, 5.15.194 ≤ 5.15.*, 6.1.154 ≤ 6.1.*, 6.6.108 ≤ 6.6.*, 6.12.49 ≤ 6.12.*, 6.16.9 ≤ 6.16.*, 6.17 ≤ *
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2025-39953 · cve.blacktree.nl