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Full vulnerability report · 2026
CVE-2026-53309High confidence

ocfs2/dlm: fix off-by-one in dlm_match_regions() region comparison

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 20 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 0.40% 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 20 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.

24 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 20 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.6.12.94-1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian bookwormbookworm · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.1.176-1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian forkyforky · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.7.0.10-1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian sidsid · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.7.0.10-1Debian Security Tracker ↗Source updated 5 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-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
CVE-2026-53309 · CSAF 2.0 · revision 14 · interimSUSE Product Security TeamCVE-2026-53309
318 known affected

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

  • kernel-default as component of SUSE Linux Enterprise Desktop 15 SP7
  • kernel-default-extra as component of SUSE Linux Enterprise Desktop 15 SP7
  • kernel-source as component of SUSE Linux Enterprise Desktop 15 SP7
  • cluster-md-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
  • dlm-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
  • gfs2-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
  • kernel-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
  • kernel-source as component of SUSE Linux Enterprise High Availability Extension 15 SP7
  • ocfs2-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
  • kernel-default as component of SUSE Linux Enterprise High Availability Extension 16.0
  • kernel-source as component of SUSE Linux Enterprise High Availability Extension 16.0
  • kernel-default as component of SUSE Linux Enterprise High Performance Computing 12 SP4
Summary
In the Linux kernel, the following vulnerability has been resolved: ocfs2/dlm: fix off-by-one in dlm_match_regions() region comparison The local-vs-remote region comparison loop uses '<=' instead of '<', causing it to read one entry past the valid range of qr_regions. The other loops in the same function correctly use '<'. Fix the loop condition to use '<' for consistency and correctness.
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-2026-39844

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

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
Not supplied in the stored EUVD record
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 20 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: ocfs2/dlm: fix off-by-one in dlm_match_regions() region comparison The local-vs-remote region comparison loop uses '<=' instead of '<', causing it to read one entry past the valid range of qr_regions. The other loops in the same function correctly use '<'. Fix the loop condition to use '<' for consistency and correctness.

What

In the Linux kernel, the following vulnerability has been resolved: ocfs2/dlm: fix off-by-one in dlm_match_regions() region comparison The local-vs-remote region comparison loop uses '<=' instead of '<', causing it to read one entry past the valid range of qr_regions. The other loops in the same function correctly use '<'. Fix the loop condition to use '<' for consistency and correctness.

Why

A product calculates or uses an incorrect maximum or minimum value that is 1 more, or 1 less, than the correct value.

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: ocfs2/dlm: fix off-by-one in dlm_match_regions() region comparison The local-vs-remote region comparison loop uses '<=' instead of '<', causing it to read one entry past the valid range of qr_regions. The other loops in the same function correctly use '<'. Fix the loop condition to use '<' for consistency and correctness.

Why

A product calculates or uses an incorrect maximum or minimum value that is 1 more, or 1 less, than the correct value.

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 → Off-by-one Error → 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: a standard category for the underlying weakness.
CWE-193 ↗

CWE-193: Off-by-one Error. A product calculates or uses an incorrect maximum or minimum value that is 1 more, or 1 less, than the correct value.

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.
NetworkUnauthenticatedCWE-193
A

Official authority intelligence

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

BSI · German · WID-SEC-2026-2119Linux Kernel: Mehrere Schwachstellen

Ein lokaler Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um Sicherheitsmaßnahmen zu umgehen, einen Denial of Service zu verursachen und potentiell Code auszuführen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260701Security Bulletin 1 July 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 1 July 2026, published on 1 July 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1252Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-53300 Référence CVE CVE-2026-53301 https://www.cve.org/CVERecord?id=CVE-2026-53301 Référence CVE CVE-2026-53302 https://www.cve.org/CVERecord?id=CVE-2026-53302 Référence CVE CVE-2026-53303 https://www.cve.org/CVERecord?id=CVE-2026-53303 Référence CVE CVE-2026-53304 https://www.cve.org/CVERecord?id=CVE-2026-53304 Référence CVE CVE-2026-53305 https://www.cve.org/CVERecord?id=CVE-2026-53305 Référence CVE CVE-2026-53306 https://www.cve.org/CVERecord?id=CVE-2026-53306 Référence CVE CVE-2026-53307 https://www.cve.org/CVERecord?id=CVE-2026-53307 Référence CVE CVE-2026-53308 https://www.cve.org/CVERecord?id=CVE-2026-53308 Référence CVE CVE-2026-53309 https://www.cve.org/CVERecord?id=CVE-2026-53309 Référence CVE CVE-2026-53310 https://www.cve.org/CVERecord?id=CVE-2026-53310 Référence CVE CVE-2026-53311 https://www.cve.org/CVERecord?id=CVE-2026-53311 Référence CVE CVE-2026-53312 https://www.cve.org/CVERecord?id=CVE-2026-53312 Référence CVE CVE-2026-53313 https://www.cve.org/CVERecord?id=CVE-2026-53313 Référence CVE CVE-2026-53314 https://www.cve.org/CVERecord?id=CVE-2026-53314 Référence CVE CVE-2026-53315 https://www.cve.org/CVERecord?id=CVE-2026-53315 Référence CVE CVE-2026-53316 https://www.cve.org/CVERecord?id=CVE-2026-53316 Référence CVE CVE-2026-53317 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1255Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-53219 Référence CVE CVE-2026-53220 https://www.cve.org/CVERecord?id=CVE-2026-53220 Référence CVE CVE-2026-53223 https://www.cve.org/CVERecord?id=CVE-2026-53223 Référence CVE CVE-2026-53228 https://www.cve.org/CVERecord?id=CVE-2026-53228 Référence CVE CVE-2026-53238 https://www.cve.org/CVERecord?id=CVE-2026-53238 Référence CVE CVE-2026-53264 https://www.cve.org/CVERecord?id=CVE-2026-53264 Référence CVE CVE-2026-53269 https://www.cve.org/CVERecord?id=CVE-2026-53269 Référence CVE CVE-2026-53284 https://www.cve.org/CVERecord?id=CVE-2026-53284 Référence CVE CVE-2026-53291 https://www.cve.org/CVERecord?id=CVE-2026-53291 Référence CVE CVE-2026-53309 https://www.cve.org/CVERecord?id=CVE-2026-53309 Référence CVE CVE-2026-53330 https://www.cve.org/CVERecord?id=CVE-2026-53330 Référence CVE CVE-2026-53336 https://www.cve.org/CVERecord?id=CVE-2026-53336 Référence CVE CVE-2026-53337 https://www.cve.org/CVERecord?id=CVE-2026-53337 Référence CVE CVE-2026-53341 https://www.cve.org/CVERecord?id=CVE-2026-53341 Référence CVE CVE-2026-53353 https://www.cve.org/CVERecord?id=CVE-2026-53353 Référence CVE CVE-2026-53360 https://www.cve.org/CVERecord?id=CVE-2026-53360 Référence CVE CVE-2026-53365 https://www.cve.org/CVERecord?id=CVE-2026-53365 Référence CVE CVE-2026-53388 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1229Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-53300 Référence CVE CVE-2026-53301 https://www.cve.org/CVERecord?id=CVE-2026-53301 Référence CVE CVE-2026-53302 https://www.cve.org/CVERecord?id=CVE-2026-53302 Référence CVE CVE-2026-53303 https://www.cve.org/CVERecord?id=CVE-2026-53303 Référence CVE CVE-2026-53304 https://www.cve.org/CVERecord?id=CVE-2026-53304 Référence CVE CVE-2026-53305 https://www.cve.org/CVERecord?id=CVE-2026-53305 Référence CVE CVE-2026-53306 https://www.cve.org/CVERecord?id=CVE-2026-53306 Référence CVE CVE-2026-53307 https://www.cve.org/CVERecord?id=CVE-2026-53307 Référence CVE CVE-2026-53308 https://www.cve.org/CVERecord?id=CVE-2026-53308 Référence CVE CVE-2026-53309 https://www.cve.org/CVERecord?id=CVE-2026-53309 Référence CVE CVE-2026-53310 https://www.cve.org/CVERecord?id=CVE-2026-53310 Référence CVE CVE-2026-53311 https://www.cve.org/CVERecord?id=CVE-2026-53311 Référence CVE CVE-2026-53312 https://www.cve.org/CVERecord?id=CVE-2026-53312 Référence CVE CVE-2026-53313 https://www.cve.org/CVERecord?id=CVE-2026-53313 Référence CVE CVE-2026-53314 https://www.cve.org/CVERecord?id=CVE-2026-53314 Référence CVE CVE-2026-53315 https://www.cve.org/CVERecord?id=CVE-2026-53315 Référence CVE CVE-2026-53316 https://www.cve.org/CVERecord?id=CVE-2026-53316 Référence CVE CVE-2026-53317 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1231Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-53163 Référence CVE CVE-2026-53219 https://www.cve.org/CVERecord?id=CVE-2026-53219 Référence CVE CVE-2026-53220 https://www.cve.org/CVERecord?id=CVE-2026-53220 Référence CVE CVE-2026-53223 https://www.cve.org/CVERecord?id=CVE-2026-53223 Référence CVE CVE-2026-53228 https://www.cve.org/CVERecord?id=CVE-2026-53228 Référence CVE CVE-2026-53238 https://www.cve.org/CVERecord?id=CVE-2026-53238 Référence CVE CVE-2026-53260 https://www.cve.org/CVERecord?id=CVE-2026-53260 Référence CVE CVE-2026-53264 https://www.cve.org/CVERecord?id=CVE-2026-53264 Référence CVE CVE-2026-53265 https://www.cve.org/CVERecord?id=CVE-2026-53265 Référence CVE CVE-2026-53309 https://www.cve.org/CVERecord?id=CVE-2026-53309 Référence CVE CVE-2026-53360 https://www.cve.org/CVERecord?id=CVE-2026-53360 Référence CVE CVE-2026-53374 https://www.cve.org/CVERecord?id=CVE-2026-53374 Référence CVE CVE-2026-53381 https://www.cve.org/CVERecord?id=CVE-2026-53381 Référence CVE CVE-2026-53388 https://www.cve.org/CVERecord?id=CVE-2026-53388 Référence CVE CVE-2026-53403 https://www.cve.org/CVERecord?id=CVE-2026-53403 Référence CVE CVE-2026-63801 https://www.cve.org/CVERecord?id=CVE-2026-63801 Référence CVE CVE-2026-63810 https://www.cve.org/CVERecord?id=CVE-2026-63810 Référence CVE CVE-2026-63823 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1202Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-53224 Référence CVE CVE-2026-53228 https://www.cve.org/CVERecord?id=CVE-2026-53228 Référence CVE CVE-2026-53238 https://www.cve.org/CVERecord?id=CVE-2026-53238 Référence CVE CVE-2026-53246 https://www.cve.org/CVERecord?id=CVE-2026-53246 Référence CVE CVE-2026-53260 https://www.cve.org/CVERecord?id=CVE-2026-53260 Référence CVE CVE-2026-53263 https://www.cve.org/CVERecord?id=CVE-2026-53263 Référence CVE CVE-2026-53264 https://www.cve.org/CVERecord?id=CVE-2026-53264 Référence CVE CVE-2026-53269 https://www.cve.org/CVERecord?id=CVE-2026-53269 Référence CVE CVE-2026-53273 https://www.cve.org/CVERecord?id=CVE-2026-53273 Référence CVE CVE-2026-53309 https://www.cve.org/CVERecord?id=CVE-2026-53309 Référence CVE CVE-2026-53330 https://www.cve.org/CVERecord?id=CVE-2026-53330 Référence CVE CVE-2026-53336 https://www.cve.org/CVERecord?id=CVE-2026-53336 Référence CVE CVE-2026-53337 https://www.cve.org/CVERecord?id=CVE-2026-53337 Référence CVE CVE-2026-53353 https://www.cve.org/CVERecord?id=CVE-2026-53353 Référence CVE CVE-2026-53360 https://www.cve.org/CVERecord?id=CVE-2026-53360 Référence CVE CVE-2026-53365 https://www.cve.org/CVERecord?id=CVE-2026-53365 Référence CVE CVE-2026-53366 https://www.cve.org/CVERecord?id=CVE-2026-53366 Référence CVE CVE-2026-53381 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1203Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-53270 Référence CVE CVE-2026-53271 https://www.cve.org/CVERecord?id=CVE-2026-53271 Référence CVE CVE-2026-53272 https://www.cve.org/CVERecord?id=CVE-2026-53272 Référence CVE CVE-2026-53273 https://www.cve.org/CVERecord?id=CVE-2026-53273 Référence CVE CVE-2026-53274 https://www.cve.org/CVERecord?id=CVE-2026-53274 Référence CVE CVE-2026-53275 https://www.cve.org/CVERecord?id=CVE-2026-53275 Référence CVE CVE-2026-53276 https://www.cve.org/CVERecord?id=CVE-2026-53276 Référence CVE CVE-2026-53281 https://www.cve.org/CVERecord?id=CVE-2026-53281 Référence CVE CVE-2026-53284 https://www.cve.org/CVERecord?id=CVE-2026-53284 Référence CVE CVE-2026-53309 https://www.cve.org/CVERecord?id=CVE-2026-53309 Référence CVE CVE-2026-53325 https://www.cve.org/CVERecord?id=CVE-2026-53325 Référence CVE CVE-2026-53326 https://www.cve.org/CVERecord?id=CVE-2026-53326 Référence CVE CVE-2026-53327 https://www.cve.org/CVERecord?id=CVE-2026-53327 Référence CVE CVE-2026-53328 https://www.cve.org/CVERecord?id=CVE-2026-53328 Référence CVE CVE-2026-53329 https://www.cve.org/CVERecord?id=CVE-2026-53329 Référence CVE CVE-2026-53330 https://www.cve.org/CVERecord?id=CVE-2026-53330 Référence CVE CVE-2026-53331 https://www.cve.org/CVERecord?id=CVE-2026-53331 Référence CVE CVE-2026-53332 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1162Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-53300 Référence CVE CVE-2026-53301 https://www.cve.org/CVERecord?id=CVE-2026-53301 Référence CVE CVE-2026-53302 https://www.cve.org/CVERecord?id=CVE-2026-53302 Référence CVE CVE-2026-53303 https://www.cve.org/CVERecord?id=CVE-2026-53303 Référence CVE CVE-2026-53304 https://www.cve.org/CVERecord?id=CVE-2026-53304 Référence CVE CVE-2026-53305 https://www.cve.org/CVERecord?id=CVE-2026-53305 Référence CVE CVE-2026-53306 https://www.cve.org/CVERecord?id=CVE-2026-53306 Référence CVE CVE-2026-53307 https://www.cve.org/CVERecord?id=CVE-2026-53307 Référence CVE CVE-2026-53308 https://www.cve.org/CVERecord?id=CVE-2026-53308 Référence CVE CVE-2026-53309 https://www.cve.org/CVERecord?id=CVE-2026-53309 Référence CVE CVE-2026-53310 https://www.cve.org/CVERecord?id=CVE-2026-53310 Référence CVE CVE-2026-53311 https://www.cve.org/CVERecord?id=CVE-2026-53311 Référence CVE CVE-2026-53312 https://www.cve.org/CVERecord?id=CVE-2026-53312 Référence CVE CVE-2026-53313 https://www.cve.org/CVERecord?id=CVE-2026-53313 Référence CVE CVE-2026-53314 https://www.cve.org/CVERecord?id=CVE-2026-53314 Référence CVE CVE-2026-53315 https://www.cve.org/CVERecord?id=CVE-2026-53315 Référence CVE CVE-2026-53316 https://www.cve.org/CVERecord?id=CVE-2026-53316 Référence CVE CVE-2026-53317 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1164Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-53224 Référence CVE CVE-2026-53228 https://www.cve.org/CVERecord?id=CVE-2026-53228 Référence CVE CVE-2026-53238 https://www.cve.org/CVERecord?id=CVE-2026-53238 Référence CVE CVE-2026-53246 https://www.cve.org/CVERecord?id=CVE-2026-53246 Référence CVE CVE-2026-53260 https://www.cve.org/CVERecord?id=CVE-2026-53260 Référence CVE CVE-2026-53263 https://www.cve.org/CVERecord?id=CVE-2026-53263 Référence CVE CVE-2026-53264 https://www.cve.org/CVERecord?id=CVE-2026-53264 Référence CVE CVE-2026-53269 https://www.cve.org/CVERecord?id=CVE-2026-53269 Référence CVE CVE-2026-53273 https://www.cve.org/CVERecord?id=CVE-2026-53273 Référence CVE CVE-2026-53309 https://www.cve.org/CVERecord?id=CVE-2026-53309 Référence CVE CVE-2026-53330 https://www.cve.org/CVERecord?id=CVE-2026-53330 Référence CVE CVE-2026-53336 https://www.cve.org/CVERecord?id=CVE-2026-53336 Référence CVE CVE-2026-53337 https://www.cve.org/CVERecord?id=CVE-2026-53337 Référence CVE CVE-2026-53353 https://www.cve.org/CVERecord?id=CVE-2026-53353 Référence CVE CVE-2026-53365 https://www.cve.org/CVERecord?id=CVE-2026-53365 Référence CVE CVE-2026-53366 https://www.cve.org/CVERecord?id=CVE-2026-53366 Référence CVE CVE-2026-53381 https://www.cve.org/CVERecord?id=CVE-2026-53381 Référence CVE CVE-2026-53388 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1117Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-53086 Référence CVE CVE-2026-53088 https://www.cve.org/CVERecord?id=CVE-2026-53088 Référence CVE CVE-2026-53176 https://www.cve.org/CVERecord?id=CVE-2026-53176 Référence CVE CVE-2026-53212 https://www.cve.org/CVERecord?id=CVE-2026-53212 Référence CVE CVE-2026-53215 https://www.cve.org/CVERecord?id=CVE-2026-53215 Référence CVE CVE-2026-53224 https://www.cve.org/CVERecord?id=CVE-2026-53224 Référence CVE CVE-2026-53225 https://www.cve.org/CVERecord?id=CVE-2026-53225 Référence CVE CVE-2026-53228 https://www.cve.org/CVERecord?id=CVE-2026-53228 Référence CVE CVE-2026-53246 https://www.cve.org/CVERecord?id=CVE-2026-53246 Référence CVE CVE-2026-53309 https://www.cve.org/CVERecord?id=CVE-2026-53309 Référence CVE CVE-2026-53359 https://www.cve.org/CVERecord?id=CVE-2026-53359 Référence CVE CVE-2026-64531 https://www.cve.org/CVERecord?id=CVE-2026-64531 Gestion détaillée du document le 04 septembre 2026 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales À propos Contact cyber.gouv.fr service-public.fr legifrance.gouv.fr info.gouv.fr france.fr info.gouv.fr/risques Premier Ministre / Secrétariat Général de la Défense et de la Sécurité Nationale / Agence nationale de la sécurité des systèmes d'information

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1093Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-53247 Référence CVE CVE-2026-53277 https://www.cve.org/CVERecord?id=CVE-2026-53277 Référence CVE CVE-2026-53287 https://www.cve.org/CVERecord?id=CVE-2026-53287 Référence CVE CVE-2026-53291 https://www.cve.org/CVERecord?id=CVE-2026-53291 Référence CVE CVE-2026-53294 https://www.cve.org/CVERecord?id=CVE-2026-53294 Référence CVE CVE-2026-53295 https://www.cve.org/CVERecord?id=CVE-2026-53295 Référence CVE CVE-2026-53296 https://www.cve.org/CVERecord?id=CVE-2026-53296 Référence CVE CVE-2026-53304 https://www.cve.org/CVERecord?id=CVE-2026-53304 Référence CVE CVE-2026-53306 https://www.cve.org/CVERecord?id=CVE-2026-53306 Référence CVE CVE-2026-53309 https://www.cve.org/CVERecord?id=CVE-2026-53309 Référence CVE CVE-2026-53320 https://www.cve.org/CVERecord?id=CVE-2026-53320 Référence CVE CVE-2026-53359 https://www.cve.org/CVERecord?id=CVE-2026-53359 Référence CVE CVE-2026-53369 https://www.cve.org/CVERecord?id=CVE-2026-53369 Référence CVE CVE-2026-53379 https://www.cve.org/CVERecord?id=CVE-2026-53379 Référence CVE CVE-2026-63860 https://www.cve.org/CVERecord?id=CVE-2026-63860 Référence CVE CVE-2026-63865 https://www.cve.org/CVERecord?id=CVE-2026-63865 Référence CVE CVE-2026-64018 https://www.cve.org/CVERecord?id=CVE-2026-64018 Référence CVE CVE-2026-64032 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1066Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-53300 Référence CVE CVE-2026-53301 https://www.cve.org/CVERecord?id=CVE-2026-53301 Référence CVE CVE-2026-53302 https://www.cve.org/CVERecord?id=CVE-2026-53302 Référence CVE CVE-2026-53303 https://www.cve.org/CVERecord?id=CVE-2026-53303 Référence CVE CVE-2026-53304 https://www.cve.org/CVERecord?id=CVE-2026-53304 Référence CVE CVE-2026-53305 https://www.cve.org/CVERecord?id=CVE-2026-53305 Référence CVE CVE-2026-53306 https://www.cve.org/CVERecord?id=CVE-2026-53306 Référence CVE CVE-2026-53307 https://www.cve.org/CVERecord?id=CVE-2026-53307 Référence CVE CVE-2026-53308 https://www.cve.org/CVERecord?id=CVE-2026-53308 Référence CVE CVE-2026-53309 https://www.cve.org/CVERecord?id=CVE-2026-53309 Référence CVE CVE-2026-53310 https://www.cve.org/CVERecord?id=CVE-2026-53310 Référence CVE CVE-2026-53311 https://www.cve.org/CVERecord?id=CVE-2026-53311 Référence CVE CVE-2026-53312 https://www.cve.org/CVERecord?id=CVE-2026-53312 Référence CVE CVE-2026-53313 https://www.cve.org/CVERecord?id=CVE-2026-53313 Référence CVE CVE-2026-53314 https://www.cve.org/CVERecord?id=CVE-2026-53314 Référence CVE CVE-2026-53315 https://www.cve.org/CVERecord?id=CVE-2026-53315 Référence CVE CVE-2026-53316 https://www.cve.org/CVERecord?id=CVE-2026-53316 Référence CVE CVE-2026-53317 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0985Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-53128 Référence CVE CVE-2026-53130 https://www.cve.org/CVERecord?id=CVE-2026-53130 Référence CVE CVE-2026-53287 https://www.cve.org/CVERecord?id=CVE-2026-53287 Référence CVE CVE-2026-53291 https://www.cve.org/CVERecord?id=CVE-2026-53291 Référence CVE CVE-2026-53294 https://www.cve.org/CVERecord?id=CVE-2026-53294 Référence CVE CVE-2026-53295 https://www.cve.org/CVERecord?id=CVE-2026-53295 Référence CVE CVE-2026-53296 https://www.cve.org/CVERecord?id=CVE-2026-53296 Référence CVE CVE-2026-53304 https://www.cve.org/CVERecord?id=CVE-2026-53304 Référence CVE CVE-2026-53306 https://www.cve.org/CVERecord?id=CVE-2026-53306 Référence CVE CVE-2026-53309 https://www.cve.org/CVERecord?id=CVE-2026-53309 Référence CVE CVE-2026-53320 https://www.cve.org/CVERecord?id=CVE-2026-53320 Référence CVE CVE-2026-53369 https://www.cve.org/CVERecord?id=CVE-2026-53369 Référence CVE CVE-2026-53379 https://www.cve.org/CVERecord?id=CVE-2026-53379 Référence CVE CVE-2026-63860 https://www.cve.org/CVERecord?id=CVE-2026-63860 Référence CVE CVE-2026-63865 https://www.cve.org/CVERecord?id=CVE-2026-63865 Référence CVE CVE-2026-64018 https://www.cve.org/CVERecord?id=CVE-2026-64018 Référence CVE CVE-2026-64032 https://www.cve.org/CVERecord?id=CVE-2026-64032 Référence CVE CVE-2026-64033 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0954Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-53300 Référence CVE CVE-2026-53301 https://www.cve.org/CVERecord?id=CVE-2026-53301 Référence CVE CVE-2026-53302 https://www.cve.org/CVERecord?id=CVE-2026-53302 Référence CVE CVE-2026-53303 https://www.cve.org/CVERecord?id=CVE-2026-53303 Référence CVE CVE-2026-53304 https://www.cve.org/CVERecord?id=CVE-2026-53304 Référence CVE CVE-2026-53305 https://www.cve.org/CVERecord?id=CVE-2026-53305 Référence CVE CVE-2026-53306 https://www.cve.org/CVERecord?id=CVE-2026-53306 Référence CVE CVE-2026-53307 https://www.cve.org/CVERecord?id=CVE-2026-53307 Référence CVE CVE-2026-53308 https://www.cve.org/CVERecord?id=CVE-2026-53308 Référence CVE CVE-2026-53309 https://www.cve.org/CVERecord?id=CVE-2026-53309 Référence CVE CVE-2026-53310 https://www.cve.org/CVERecord?id=CVE-2026-53310 Référence CVE CVE-2026-53311 https://www.cve.org/CVERecord?id=CVE-2026-53311 Référence CVE CVE-2026-53312 https://www.cve.org/CVERecord?id=CVE-2026-53312 Référence CVE CVE-2026-53313 https://www.cve.org/CVERecord?id=CVE-2026-53313 Référence CVE CVE-2026-53314 https://www.cve.org/CVERecord?id=CVE-2026-53314 Référence CVE CVE-2026-53315 https://www.cve.org/CVERecord?id=CVE-2026-53315 Référence CVE CVE-2026-53316 https://www.cve.org/CVERecord?id=CVE-2026-53316 Référence CVE CVE-2026-53317 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0926Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-53300 Référence CVE CVE-2026-53301 https://www.cve.org/CVERecord?id=CVE-2026-53301 Référence CVE CVE-2026-53302 https://www.cve.org/CVERecord?id=CVE-2026-53302 Référence CVE CVE-2026-53303 https://www.cve.org/CVERecord?id=CVE-2026-53303 Référence CVE CVE-2026-53304 https://www.cve.org/CVERecord?id=CVE-2026-53304 Référence CVE CVE-2026-53305 https://www.cve.org/CVERecord?id=CVE-2026-53305 Référence CVE CVE-2026-53306 https://www.cve.org/CVERecord?id=CVE-2026-53306 Référence CVE CVE-2026-53307 https://www.cve.org/CVERecord?id=CVE-2026-53307 Référence CVE CVE-2026-53308 https://www.cve.org/CVERecord?id=CVE-2026-53308 Référence CVE CVE-2026-53309 https://www.cve.org/CVERecord?id=CVE-2026-53309 Référence CVE CVE-2026-53310 https://www.cve.org/CVERecord?id=CVE-2026-53310 Référence CVE CVE-2026-53311 https://www.cve.org/CVERecord?id=CVE-2026-53311 Référence CVE CVE-2026-53312 https://www.cve.org/CVERecord?id=CVE-2026-53312 Référence CVE CVE-2026-53313 https://www.cve.org/CVERecord?id=CVE-2026-53313 Référence CVE CVE-2026-53314 https://www.cve.org/CVERecord?id=CVE-2026-53314 Référence CVE CVE-2026-53315 https://www.cve.org/CVERecord?id=CVE-2026-53315 Référence CVE CVE-2026-53316 https://www.cve.org/CVERecord?id=CVE-2026-53316 Référence CVE CVE-2026-53317 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0862Multiples vulnérabilités dans le noyau Linux de Debian LTS

d?id=CVE-2026-53287 Référence CVE CVE-2026-53289 https://www.cve.org/CVERecord?id=CVE-2026-53289 Référence CVE CVE-2026-53291 https://www.cve.org/CVERecord?id=CVE-2026-53291 Référence CVE CVE-2026-53294 https://www.cve.org/CVERecord?id=CVE-2026-53294 Référence CVE CVE-2026-53295 https://www.cve.org/CVERecord?id=CVE-2026-53295 Référence CVE CVE-2026-53296 https://www.cve.org/CVERecord?id=CVE-2026-53296 Référence CVE CVE-2026-53303 https://www.cve.org/CVERecord?id=CVE-2026-53303 Référence CVE CVE-2026-53304 https://www.cve.org/CVERecord?id=CVE-2026-53304 Référence CVE CVE-2026-53306 https://www.cve.org/CVERecord?id=CVE-2026-53306 Référence CVE CVE-2026-53309 https://www.cve.org/CVERecord?id=CVE-2026-53309 Référence CVE CVE-2026-53314 https://www.cve.org/CVERecord?id=CVE-2026-53314 Référence CVE CVE-2026-53320 https://www.cve.org/CVERecord?id=CVE-2026-53320 Référence CVE CVE-2026-53325 https://www.cve.org/CVERecord?id=CVE-2026-53325 Référence CVE CVE-2026-53327 https://www.cve.org/CVERecord?id=CVE-2026-53327 Référence CVE CVE-2026-53329 https://www.cve.org/CVERecord?id=CVE-2026-53329 Référence CVE CVE-2026-53331 https://www.cve.org/CVERecord?id=CVE-2026-53331 Référence CVE CVE-2026-53337 https://www.cve.org/CVERecord?id=CVE-2026-53337 Référence CVE CVE-2026-53339 https://www.cve.org/CVERecord?id=

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-022601LinuxのLinux Kernelにおける境界条件の判定に関する脆弱性

Linuxカーネルにおいて、以下の脆弱性が修正されました。ocfs2/dlm: dlm_match_regions() における領域比較のオフバイワンを修正しました。ローカル対リモートの領域比較ループで '＜=' が使用されており、qr_regions の有効範囲を1つ超えて読み込んでしまっていました。同じ関数内の他のループは正しく '＜' を使用していました。整合性と正確性を保つために、ループ条件を '＜' に修正しました。

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: < 2.6.37, 5.10.258 ≤ 5.10.*, 5.15.209 ≤ 5.15.*, 6.1.175 ≤ 6.1.*, 6.6.141 ≤ 6.6.*, 6.12.91 ≤ 6.12.*, 6.18.33 ≤ 6.18.*, 7.0.10 ≤ 7.0.*, 7.1 ≤ *
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
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 26 Jun 2026 · Last source change 5 Aug 2026, 12:34 UTC · CWE-193 · Off-by-one Error

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-2026-39844
Product sourceVendor CSAF · SUSE Product Security Team
Remediation sourceVendor CSAF · SUSE Product Security Team
CWE sourceNIST NVD
NVD statusNVD enriched

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2026-39844↗Vendor CSAF · SUSE Product Security Team↗CVE authority or vendor reference↗Patch or update reference↗Patch or update reference↗Patch or update reference↗Official CVE record (CNA and ADP data)↗NVD record↗
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-2026-53309 · cve.blacktree.nl