BlackTreeCVE Intelligence
← Back to the CVE catalogue
Full vulnerability report · 2025
CVE-2025-68359High confidence

btrfs: fix double free of qgroup record after failure to add delayed ref head

Linux · Linux

9.8CriticalCVSS 3.1
Recommended action
Patch only the product branches with a verified fix

Critical technical impact with a remotely reachable, unauthenticated path; no CISA KEV confirmation is currently recorded. Verified remediation exists for at least one product or source, but 28 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 severityCriticalOperational priority:Critical, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
  • EPSS is 0.55% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict the affected network interface to trusted sources where business-safe.
  • 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: Within 3 daysRemediation target: Within 90 days

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 28 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.

17 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 14 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 · sourcelinuxAffected, no fix publishedDebian currently tracks this release as open.Not published in this feedDebian Security Tracker ↗Source updated 23 Oct 2026
Debian bookwormbookworm · sourcelinuxNot affectedDebian marks this release not affected (fixed-version marker 0).Not published in this feedDebian Security Tracker ↗Source updated 23 Oct 2026
Debian forkyforky · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.17.13-1Debian Security Tracker ↗Source updated 23 Oct 2026
Debian sidsid · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.17.13-1Debian Security Tracker ↗Source updated 23 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-aws-6.14Affected, 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 23 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-azure-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 23 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-azure-fde-6.14Affected, 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 23 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-azure-nvidia-6.14Affected, 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 23 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-gcp-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 23 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-hwe-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 23 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-lowlatency-hwe-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 23 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-nvidia-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 23 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 23 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-oracle-6.14Affected, 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 23 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 23 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 23 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 23 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.

2 current
CVE-2025-68359 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitykernel: btrfs: fix double free of qgroup record after failure to add delayed ref head
14 known affected

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

  • kernel as a component of Red Hat Enterprise Linux 6
  • kernel-abi-whitelists as a component of Red Hat Enterprise Linux 6
  • kernel-bootwrapper as a component of Red Hat Enterprise Linux 6
  • kernel-debug as a component of Red Hat Enterprise Linux 6
  • kernel-debug-devel as a component of Red Hat Enterprise Linux 6
  • kernel-devel as a component of Red Hat Enterprise Linux 6
  • kernel-doc as a component of Red Hat Enterprise Linux 6
  • kernel-firmware as a component of Red Hat Enterprise Linux 6
  • kernel-headers as a component of Red Hat Enterprise Linux 6
  • kernel-kdump as a component of Red Hat Enterprise Linux 6
  • kernel-kdump-devel as a component of Red Hat Enterprise Linux 6
  • kernel.src as a component of Red Hat Enterprise Linux 6
Summary
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix double free of qgroup record after failure to add delayed ref head In the previous code it was possible to incur into a double kfree() scenario when calling add_delayed_ref_head(). This could happen if the record was reported to already exist in the btrfs_qgroup_trace_extent_nolock() call, but then there was an error later on add_delayed_ref_head(). In this case, since add_delayed_ref_head() returned an error, the caller went to free the record. Since add_delayed_ref_head() couldn't set this kfree'd pointer to NULL, then kfree() would have acted on a non-NULL 'record' object which was pointing to memory already freed by the callee. The problem comes from the fact that the responsibility to kfree the object is on both the caller and the callee at the same time. Hence, the fix for this is to shift the ownership of the 'qrecord' object out of the add_delayed_ref_head(). That is, we will never attempt to kfree() the given object inside of this function, and will expect the caller to act on the 'qrecord' object on its own. The only exception where the 'qrecord' object cannot be kfree'd is if it was inserted into the tracing logic, for which we already have the 'qrecord_inserted_ret' boolean to account for this. Hence, the caller has to kfree the object only if add_delayed_ref_head() reports not to have inserted it on the tracing logic. As a side-effect of the above, we must guarantee that 'qrecord_inserted_ret' is properly initialized at the start of the function, not at the end, and then set when an actual insert happens. This way we avoid 'qrecord_inserted_ret' having an invalid value on an early exit. The documentation from the add_delayed_ref_head() has also been updated to reflect on the exact ownership of the 'qrecord' object.
Remediation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
CVE-2025-68359 · CSAF 2.0 · revision 24 · interimSUSE Product Security TeamCVE-2025-68359
7 known affected

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

  • kernel-devel-azure as component of SUSE Linux Enterprise Server 16.0
  • kernel-source-azure as component of SUSE Linux Enterprise Server 16.0
  • kernel-devel-azure as component of SUSE Linux Enterprise Server for SAP applications 16.0
  • kernel-source-azure as component of SUSE Linux Enterprise Server for SAP applications 16.0
  • SUSE Linux Micro Extras 6.2:kernel-obs-build
  • SUSE Linux Micro Extras 6.2:kernel-syms
  • kernel-source-azure as component of openSUSE Leap 16.0
Summary
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix double free of qgroup record after failure to add delayed ref head In the previous code it was possible to incur into a double kfree() scenario when calling add_delayed_ref_head(). This could happen if the record was reported to already exist in the btrfs_qgroup_trace_extent_nolock() call, but then there was an error later on add_delayed_ref_head(). In this case, since add_delayed_ref_head() returned an error, the caller went to free the record. Since add_delayed_ref_head() couldn't set this kfree'd pointer to NULL, then kfree() would have acted on a non-NULL 'record' object which was pointing to memory already freed by the callee. The problem comes from the fact that the responsibility to kfree the object is on both the caller and the callee at the same time. Hence, the fix for this is to shift the ownership of the 'qrecord' object out of the add_delayed_ref_head(). That is, we will never attempt to kfree() the given object inside of this function, and will expect the caller to act on the 'qrecord' object on its own. The only exception where the 'qrecord' object cannot be kfree'd is if it was inserted into the tracing logic, for which we already have the 'qrecord_inserted_ret' boolean to account for this. Hence, the caller has to kfree the object only if add_delayed_ref_head() reports not to have inserted it on the tracing logic. As a side-effect of the above, we must guarantee that 'qrecord_inserted_ret' is properly initialized at the start of the function, not at the end, and then set when an actual insert happens. This way we avoid 'qrecord_inserted_ret' having an invalid value on an early exit. The documentation from the add_delayed_ref_head() has also been updated to reflect on the exact ownership of the 'qrecord' object.
Remediation
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
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-2025-205095

No EUVD known-exploited evidence

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix double free of qgroup record after failure to add delayed ref head In the previous code it was possible to incur into a double kfree() scenario when calling add_delayed_ref_head(). This could happen if the record was reported to already exist in the btrfs_qgroup_trace_extent_nolock() call, but then there was an error later on add_delayed_ref_head(). In this case, since add_delayed_ref_head() returned an error, the caller went to free the record. Since add_delayed_ref_head() couldn't set this kfree'd pointer to NULL, then kfree() would have acted on a non-NULL 'record' object which was pointing to memory already freed by the callee. The problem comes from the fact that the responsibility to kfree the object is on both the caller and the callee at the same time. Hence, the fix for this is to shift the ownership of the 'qrecord' object out of the add_delayed_ref_head(). That is, we will never attempt to kfree() the given object inside of this function, and will expect the caller to act on the 'qrecord' object on its own. The only exception where the 'qrecord' object cannot be kfree'd is if it was inserted into the tracing logic, for which we already have the 'qrecord_inserted_ret' boolean to account for this. Hence, the caller has to kfree the object only if add_delayed_ref_head() reports not to have inserted it on the tracing logic. As a side-effect of the above, we must guarantee that 'qrecord_inserted_ret' is properly initialized at the start of the function, not at the end, and then set when an actual insert happens. This way we avoid 'qrecord_inserted_ret' having an invalid value on an early exit. The documentation from the add_delayed_ref_head() has also been updated to reflect on the exact ownership of the 'qrecord' object.

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
9.8 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionPatch only the product branches with a verified fix

Critical technical impact with a remotely reachable, unauthenticated path; no CISA KEV confirmation is currently recorded. Verified remediation exists for at least one product or source, but 28 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: btrfs: fix double free of qgroup record after failure to add delayed ref head In the previous code it was possible to incur into a double kfree() scenario when calling add_delayed_ref_head(). This could happen if the record was reported to already exist in the btrfs_qgroup_trace_extent_nolock() call, but then there was an error later on add_delayed_ref_head(). In this case, since add_delayed_ref_head() returned an error, the caller went to free the record. Since add_delayed_ref_head() couldn't set this kfree'd pointer to NULL, then kfree() would have acted on a non-NULL 'record' object which was pointing to memory already freed by the callee. The problem comes from the fact that the responsibility to kfree the object is on both the caller and the callee at the same time. Hence, the fix for this is to shift the ownership of the 'qrecord' object out of the add_delayed_ref_head(). That is, we will never attempt to kfree() the given object inside of this function, and will expect the caller to act on the 'qrecord' object on its own. The only exception where the 'qrecord' object cannot be kfree'd is if it was inserted into the tracing logic, for which we already have the 'qrecord_inserted_ret' boolean to account for this. Hence, the caller has to kfree the object only if add_delayed_ref_head() reports not to have inserted it on the tracing logic. As a side-effect of the above, we must guarantee that 'qrecord_inserted_ret' is properly initialized at the start of the function, not at the end, and then set when an actual insert happens. This way we avoid 'qrecord_inserted_ret' having an invalid value on an early exit. The documentation from the add_delayed_ref_head() has also been updated to reflect on the exact ownership of the 'qrecord' object.

What

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix double free of qgroup record after failure to add delayed ref head In the previous code it was possible to incur into a double kfree() scenario when calling add_delayed_ref_head(). This could happen if the record was reported to already exist in the btrfs_qgroup_trace_extent_nolock() call, but then there was an error later on add_delayed_ref_head(). In this case, since add_delayed_ref_head() returned an error, the caller went to free the record. Since add_delayed_ref_head() couldn't set this kfree'd pointer to NULL, then kfree() would have acted on a non-NULL 'record' object which was pointing to memory already freed by the callee. The problem comes from the fact that the responsibility to kfree the object is on both the caller and the callee at the same time. Hence, the fix for this is to shift the ownership of the 'qrecord' object out of the add_delayed_ref_head(). That is, we will never attempt to kfree() the given object inside of this function, and will expect the caller to act on the 'qrecord' object on its own. The only exception where the 'qrecord' object cannot be kfree'd is if it was inserted into the tracing logic, for which we already have the 'qrecord_inserted_ret' boolean to account for this. Hence, the caller has to kfree the object only if add_delayed_ref_head() reports not to have inserted it on the tracing logic. As a side-effect of the above, we must guarantee that 'qrecord_inserted_ret' is properly initialized at the start of the function, not at the end, and then set when an actual insert happens. This way we avoid 'qrecord_inserted_ret' having an invalid value on an early exit. The documentation from the add_delayed_ref_head() has also been updated to reflect on the exact ownership of the 'qrecord' object.

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 a network path may attempt exploitation without authentication or user interaction. 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: btrfs: fix double free of qgroup record after failure to add delayed ref head In the previous code it was possible to incur into a double kfree() scenario when calling add_delayed_ref_head(). This could happen if the record was reported to already exist in the btrfs_qgroup_trace_extent_nolock() call, but then there was an error later on add_delayed_ref_head(). In this case, since add_delayed_ref_head() returned an error, the caller went to free the record. Since add_delayed_ref_head() couldn't set this kfree'd pointer to NULL, then kfree() would have acted on a non-NULL 'record' object which was pointing to memory already freed by the callee. The problem comes from the fact that the responsibility to kfree the object is on both the caller and the callee at the same time. Hence, the fix for this is to shift the ownership of the 'qrecord' object out of the add_delayed_ref_head(). That is, we will never attempt to kfree() the given object inside of this function, and will expect the caller to act on the 'qrecord' object on its own. The only exception where the 'qrecord' object cannot be kfree'd is if it was inserted into the tracing logic, for which we already have the 'qrecord_inserted_ret' boolean to account for this. Hence, the caller has to kfree the object only if add_delayed_ref_head() reports not to have inserted it on the tracing logic. As a side-effect of the above, we must guarantee that 'qrecord_inserted_ret' is properly initialized at the start of the function, not at the end, and then set when an actual insert happens. This way we avoid 'qrecord_inserted_ret' having an invalid value on an early exit. The documentation from the add_delayed_ref_head() has also been updated to reflect on the exact ownership of the 'qrecord' object.

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 a network path may attempt exploitation without authentication or user interaction. 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
a network path → vulnerable operation → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
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:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticated
A

Official authority intelligence

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

ENISA EUVD · EUVD-2025-205095Official EUVD mapping

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix double free of qgroup record after failure to add delayed ref head In the previous code it was possible to incur into a double kfree() scenario when calling add_delayed_ref_head(). This could happen if the record was reported to already exist in the btrfs_qgroup_trace_extent_nolock() call, but then there was an error later on add_delayed_ref_head(). In this case, since add_delayed_ref_head() returned an error, the caller went to free the record. Since add_delayed_ref_head() couldn't set this kfree'd pointer to NULL, then kfree() would have acted on a non-NULL 'record' object which was pointing to memory already freed by the callee. The problem comes from the fact that the responsibility to kfree the object is on both the caller and the callee at the same time. Hence, the fix for this is to shift the ownership of the 'qrecord' object out of the add_delayed_ref_head(). That is, we will never attempt to kfree() the given object inside of this function, and will expect the caller to act on the 'qrecord' object on its own. The only exception where the 'qrecord' object cannot be kfree'd is if it was inserted into the tracing logic, for which we already have the 'qrecord_inserted_ret' boolean to account for this. Hence, the caller has to kfree the object only if add_delayed_ref_head() reports not to have inserted it on the tracing logic. As a side-effect of the above, we must guarantee that 'qrecord_inserted_ret' is properly initialized at the start of the function, not at the end, and then set when an actual insert happens. This way we avoid 'qrecord_inserted_ret' having an invalid value on an early exit. The documentation from the add_delayed_ref_head() has also been updated to reflect on the exact ownership of the 'qrecord' object.

Official EUVD record ↗
BSI · German · WID-SEC-2025-2920Linux Kernel: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen im Linux-Kernel ausnutzen, um nicht näher spezifizierte Angriffe durchzuführen, die möglicherweise zu einer Denial-of-Service- Bedingung führen oder eine Speicherbeschädigung verursachen können.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20251231Security Bulletin 31 Dec 2025

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 31 Dec 2025, published on 31 December 2025. Open the linked bulletin for the product, severity and reference information published in that issue.

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

d?id=CVE-2025-68345 Référence CVE CVE-2025-68346 https://www.cve.org/CVERecord?id=CVE-2025-68346 Référence CVE CVE-2025-68347 https://www.cve.org/CVERecord?id=CVE-2025-68347 Référence CVE CVE-2025-68348 https://www.cve.org/CVERecord?id=CVE-2025-68348 Référence CVE CVE-2025-68349 https://www.cve.org/CVERecord?id=CVE-2025-68349 Référence CVE CVE-2025-68352 https://www.cve.org/CVERecord?id=CVE-2025-68352 Référence CVE CVE-2025-68354 https://www.cve.org/CVERecord?id=CVE-2025-68354 Référence CVE CVE-2025-68356 https://www.cve.org/CVERecord?id=CVE-2025-68356 Référence CVE CVE-2025-68358 https://www.cve.org/CVERecord?id=CVE-2025-68358 Référence CVE CVE-2025-68359 https://www.cve.org/CVERecord?id=CVE-2025-68359 Référence CVE CVE-2025-68360 https://www.cve.org/CVERecord?id=CVE-2025-68360 Référence CVE CVE-2025-68361 https://www.cve.org/CVERecord?id=CVE-2025-68361 Référence CVE CVE-2025-68362 https://www.cve.org/CVERecord?id=CVE-2025-68362 Référence CVE CVE-2025-68363 https://www.cve.org/CVERecord?id=CVE-2025-68363 Référence CVE CVE-2025-68364 https://www.cve.org/CVERecord?id=CVE-2025-68364 Référence CVE CVE-2025-68365 https://www.cve.org/CVERecord?id=CVE-2025-68365 Référence CVE CVE-2025-68366 https://www.cve.org/CVERecord?id=CVE-2025-68366 Référence CVE CVE-2025-68367 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-2025-68345 Référence CVE CVE-2025-68346 https://www.cve.org/CVERecord?id=CVE-2025-68346 Référence CVE CVE-2025-68347 https://www.cve.org/CVERecord?id=CVE-2025-68347 Référence CVE CVE-2025-68348 https://www.cve.org/CVERecord?id=CVE-2025-68348 Référence CVE CVE-2025-68349 https://www.cve.org/CVERecord?id=CVE-2025-68349 Référence CVE CVE-2025-68352 https://www.cve.org/CVERecord?id=CVE-2025-68352 Référence CVE CVE-2025-68354 https://www.cve.org/CVERecord?id=CVE-2025-68354 Référence CVE CVE-2025-68356 https://www.cve.org/CVERecord?id=CVE-2025-68356 Référence CVE CVE-2025-68358 https://www.cve.org/CVERecord?id=CVE-2025-68358 Référence CVE CVE-2025-68359 https://www.cve.org/CVERecord?id=CVE-2025-68359 Référence CVE CVE-2025-68360 https://www.cve.org/CVERecord?id=CVE-2025-68360 Référence CVE CVE-2025-68361 https://www.cve.org/CVERecord?id=CVE-2025-68361 Référence CVE CVE-2025-68362 https://www.cve.org/CVERecord?id=CVE-2025-68362 Référence CVE CVE-2025-68363 https://www.cve.org/CVERecord?id=CVE-2025-68363 Référence CVE CVE-2025-68364 https://www.cve.org/CVERecord?id=CVE-2025-68364 Référence CVE CVE-2025-68366 https://www.cve.org/CVERecord?id=CVE-2025-68366 Référence CVE CVE-2025-68367 https://www.cve.org/CVERecord?id=CVE-2025-68367 Référence CVE CVE-2025-68369 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-2025-68345 Référence CVE CVE-2025-68346 https://www.cve.org/CVERecord?id=CVE-2025-68346 Référence CVE CVE-2025-68347 https://www.cve.org/CVERecord?id=CVE-2025-68347 Référence CVE CVE-2025-68348 https://www.cve.org/CVERecord?id=CVE-2025-68348 Référence CVE CVE-2025-68349 https://www.cve.org/CVERecord?id=CVE-2025-68349 Référence CVE CVE-2025-68352 https://www.cve.org/CVERecord?id=CVE-2025-68352 Référence CVE CVE-2025-68354 https://www.cve.org/CVERecord?id=CVE-2025-68354 Référence CVE CVE-2025-68356 https://www.cve.org/CVERecord?id=CVE-2025-68356 Référence CVE CVE-2025-68358 https://www.cve.org/CVERecord?id=CVE-2025-68358 Référence CVE CVE-2025-68359 https://www.cve.org/CVERecord?id=CVE-2025-68359 Référence CVE CVE-2025-68360 https://www.cve.org/CVERecord?id=CVE-2025-68360 Référence CVE CVE-2025-68361 https://www.cve.org/CVERecord?id=CVE-2025-68361 Référence CVE CVE-2025-68362 https://www.cve.org/CVERecord?id=CVE-2025-68362 Référence CVE CVE-2025-68363 https://www.cve.org/CVERecord?id=CVE-2025-68363 Référence CVE CVE-2025-68364 https://www.cve.org/CVERecord?id=CVE-2025-68364 Référence CVE CVE-2025-68366 https://www.cve.org/CVERecord?id=CVE-2025-68366 Référence CVE CVE-2025-68367 https://www.cve.org/CVERecord?id=CVE-2025-68367 Référence CVE CVE-2025-68369 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-2025-68345 Référence CVE CVE-2025-68346 https://www.cve.org/CVERecord?id=CVE-2025-68346 Référence CVE CVE-2025-68347 https://www.cve.org/CVERecord?id=CVE-2025-68347 Référence CVE CVE-2025-68348 https://www.cve.org/CVERecord?id=CVE-2025-68348 Référence CVE CVE-2025-68349 https://www.cve.org/CVERecord?id=CVE-2025-68349 Référence CVE CVE-2025-68352 https://www.cve.org/CVERecord?id=CVE-2025-68352 Référence CVE CVE-2025-68354 https://www.cve.org/CVERecord?id=CVE-2025-68354 Référence CVE CVE-2025-68356 https://www.cve.org/CVERecord?id=CVE-2025-68356 Référence CVE CVE-2025-68358 https://www.cve.org/CVERecord?id=CVE-2025-68358 Référence CVE CVE-2025-68359 https://www.cve.org/CVERecord?id=CVE-2025-68359 Référence CVE CVE-2025-68360 https://www.cve.org/CVERecord?id=CVE-2025-68360 Référence CVE CVE-2025-68361 https://www.cve.org/CVERecord?id=CVE-2025-68361 Référence CVE CVE-2025-68362 https://www.cve.org/CVERecord?id=CVE-2025-68362 Référence CVE CVE-2025-68363 https://www.cve.org/CVERecord?id=CVE-2025-68363 Référence CVE CVE-2025-68364 https://www.cve.org/CVERecord?id=CVE-2025-68364 Référence CVE CVE-2025-68366 https://www.cve.org/CVERecord?id=CVE-2025-68366 Référence CVE CVE-2025-68367 https://www.cve.org/CVERecord?id=CVE-2025-68367 Référence CVE CVE-2025-68369 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0247Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2025-68341 Référence CVE CVE-2025-68345 https://www.cve.org/CVERecord?id=CVE-2025-68345 Référence CVE CVE-2025-68346 https://www.cve.org/CVERecord?id=CVE-2025-68346 Référence CVE CVE-2025-68347 https://www.cve.org/CVERecord?id=CVE-2025-68347 Référence CVE CVE-2025-68348 https://www.cve.org/CVERecord?id=CVE-2025-68348 Référence CVE CVE-2025-68349 https://www.cve.org/CVERecord?id=CVE-2025-68349 Référence CVE CVE-2025-68351 https://www.cve.org/CVERecord?id=CVE-2025-68351 Référence CVE CVE-2025-68354 https://www.cve.org/CVERecord?id=CVE-2025-68354 Référence CVE CVE-2025-68356 https://www.cve.org/CVERecord?id=CVE-2025-68356 Référence CVE CVE-2025-68359 https://www.cve.org/CVERecord?id=CVE-2025-68359 Référence CVE CVE-2025-68360 https://www.cve.org/CVERecord?id=CVE-2025-68360 Référence CVE CVE-2025-68361 https://www.cve.org/CVERecord?id=CVE-2025-68361 Référence CVE CVE-2025-68362 https://www.cve.org/CVERecord?id=CVE-2025-68362 Référence CVE CVE-2025-68363 https://www.cve.org/CVERecord?id=CVE-2025-68363 Référence CVE CVE-2025-68365 https://www.cve.org/CVERecord?id=CVE-2025-68365 Référence CVE CVE-2025-68366 https://www.cve.org/CVERecord?id=CVE-2025-68366 Référence CVE CVE-2025-68367 https://www.cve.org/CVERecord?id=CVE-2025-68367 Référence CVE CVE-2025-68368 https://www.cve.org/CVERecord?id=

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: < 6.12, 6.12.114 ≤ 6.12.*, 6.17.13 ≤ 6.17.*, 6.18.2 ≤ 6.18.*, 6.19 ≤ *
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
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
04

Evidence and provenance

Published 24 Dec 2025 · Last source change 21 Oct 2026, 12:38 UTC · CWE not yet assigned

CVE recordCVE.org · 5.2
CVSS sourceCNA
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-2025-205095
Product sourceVendor CSAF · Red Hat Product Security
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceUnavailable
NVD statusNVD not scheduled

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. Vendor guidanceAuthoritative vendor guidance changed: added remediation: git.kernel.org/82d46660ebd94c269e3f25a77eb563621d8e67e3; removed remediation: git.kernel.org/7617680769e3119dfb3b43a2b7c287ce2242211c.
    Before
    remediation: git.kernel.org/7617680769e3119dfb3b43a2b7c287ce2242211c
    After
    remediation: git.kernel.org/82d46660ebd94c269e3f25a77eb563621d8e67e3
    CNA ↗
  2. Affected versionsThe structured affected or fixed version information changed.
    Before
    Linux: 6ef8fbce010421bf742b12b8f8f2b2d2ff154845 < 7617680769e3119dfb3b43a2b7c287ce2242211c, 6ef8fbce010421bf742b12b8f8f2b2d2ff154845 < 364685c4c2d9c9f4408d95451bcf42fdeebc3ebb, 6ef8fbce010421bf742b12b8f8f2b2d2ff154845 < 725e46298876a2cc1f1c3fb22ba69d29102c3ddf, 6.12 · Fixed: Linux: < 6.12, 6.17.13 ≤ 6.17.*, 6.18.2 ≤ 6.18.*, 6.19 ≤ *
    After
    Linux: 6ef8fbce010421bf742b12b8f8f2b2d2ff154845 < 82d46660ebd94c269e3f25a77eb563621d8e67e3, 6ef8fbce010421bf742b12b8f8f2b2d2ff154845 < 7617680769e3119dfb3b43a2b7c287ce2242211c, 6ef8fbce010421bf742b12b8f8f2b2d2ff154845 < 364685c4c2d9c9f4408d95451bcf42fdeebc3ebb, 6ef8fbce010421bf742b12b8f8f2b2d2ff154845 < 725e46298876a2cc1f1c3fb22ba69d29102c3ddf, 6.12 · Fixed: Linux: < 6.12, 6.12.114 ≤ 6.12.*, 6.17.13 ≤ 6.17.*, 6.18.2 ≤ 6.18.*, 6.19 ≤ *
    CNA ↗
  3. Affected versionsThe structured affected or fixed version information changed.
    Before
    6ef8fbce010421bf742b12b8f8f2b2d2ff154845 < 7617680769e3119dfb3b43a2b7c287ce2242211c; 6ef8fbce010421bf742b12b8f8f2b2d2ff154845 < 364685c4c2d9c9f4408d95451bcf42fdeebc3ebb; 6ef8fbce010421bf742b12b8f8f2b2d2ff154845 < 725e46298876a2cc1f1c3fb22ba69d29102c3ddf; 6.12 · Fixed: < 6.12; 6.17.13 ≤ 6.17.*; 6.18.2 ≤ 6.18.*; 6.19 ≤ *
    After
    Linux: 6ef8fbce010421bf742b12b8f8f2b2d2ff154845 < 7617680769e3119dfb3b43a2b7c287ce2242211c, 6ef8fbce010421bf742b12b8f8f2b2d2ff154845 < 364685c4c2d9c9f4408d95451bcf42fdeebc3ebb, 6ef8fbce010421bf742b12b8f8f2b2d2ff154845 < 725e46298876a2cc1f1c3fb22ba69d29102c3ddf, 6.12 · Fixed: Linux: < 6.12, 6.17.13 ≤ 6.17.*, 6.18.2 ≤ 6.18.*, 6.19 ≤ *
    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-2025-68359 · cve.blacktree.nl