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Full vulnerability report · 2026
CVE-2026-31499High confidence

Bluetooth: L2CAP: Fix deadlock in l2cap_conn_del()

Linux · Linux

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 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 severityMediumOperational priority:Low, lowered one band.downgradedsince 23 May 2026

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • Exploitation requires an existing local or physical foothold with privileges.
  • EPSS is 0.13% 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 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.6.12.88-1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian bookwormbookworm · sourcelinuxNot affectedDebian marks this release not affected (fixed-version marker 0).Not published in this feedDebian Security Tracker ↗Source updated 5 Oct 2026
Debian forkyforky · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.19.11-1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian sidsid · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.19.11-1Debian 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-2026-31499 · CSAF 2.0 · revision 21 · interimSUSE Product Security TeamCVE-2026-31499
65 known affected

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

  • cluster-md-kmp-default as component of SUSE Linux Enterprise Server 15 SP6-LTSS
  • dlm-kmp-default as component of SUSE Linux Enterprise Server 15 SP6-LTSS
  • gfs2-kmp-default as component of SUSE Linux Enterprise Server 15 SP6-LTSS
  • kernel-default as component of SUSE Linux Enterprise Server 15 SP6-LTSS
  • kernel-default-devel as component of SUSE Linux Enterprise Server 15 SP6-LTSS
  • kernel-devel as component of SUSE Linux Enterprise Server 15 SP6-LTSS
  • kernel-macros as component of SUSE Linux Enterprise Server 15 SP6-LTSS
  • kernel-source as component of SUSE Linux Enterprise Server 15 SP6-LTSS
  • ocfs2-kmp-default as component of SUSE Linux Enterprise Server 15 SP6-LTSS
  • reiserfs-kmp-default as component of SUSE Linux Enterprise Server 15 SP6-LTSS
  • cluster-md-kmp-default as component of SUSE Linux Enterprise Server 15 SP6
  • dlm-kmp-default as component of SUSE Linux Enterprise Server 15 SP6
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix deadlock in l2cap_conn_del() l2cap_conn_del() calls cancel_delayed_work_sync() for both info_timer and id_addr_timer while holding conn->lock. However, the work functions l2cap_info_timeout() and l2cap_conn_update_id_addr() both acquire conn->lock, creating a potential AB-BA deadlock if the work is already executing when l2cap_conn_del() takes the lock. Move the work cancellations before acquiring conn->lock and use disable_delayed_work_sync() to additionally prevent the works from being rearmed after cancellation, consistent with the pattern used in hci_conn_del().
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-2026-24875

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

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 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: Bluetooth: L2CAP: Fix deadlock in l2cap_conn_del() l2cap_conn_del() calls cancel_delayed_work_sync() for both info_timer and id_addr_timer while holding conn->lock. However, the work functions l2cap_info_timeout() and l2cap_conn_update_id_addr() both acquire conn->lock, creating a potential AB-BA deadlock if the work is already executing when l2cap_conn_del() takes the lock. Move the work cancellations before acquiring conn->lock and use disable_delayed_work_sync() to additionally prevent the works from being rearmed after cancellation, consistent with the pattern used in hci_conn_del().

What

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix deadlock in l2cap_conn_del() l2cap_conn_del() calls cancel_delayed_work_sync() for both info_timer and id_addr_timer while holding conn->lock. However, the work functions l2cap_info_timeout() and l2cap_conn_update_id_addr() both acquire conn->lock, creating a potential AB-BA deadlock if the work is already executing when l2cap_conn_del() takes the lock. Move the work cancellations before acquiring conn->lock and use disable_delayed_work_sync() to additionally prevent the works from being rearmed after cancellation, consistent with the pattern used in hci_conn_del().

Why

The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.

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: Bluetooth: L2CAP: Fix deadlock in l2cap_conn_del() l2cap_conn_del() calls cancel_delayed_work_sync() for both info_timer and id_addr_timer while holding conn->lock. However, the work functions l2cap_info_timeout() and l2cap_conn_update_id_addr() both acquire conn->lock, creating a potential AB-BA deadlock if the work is already executing when l2cap_conn_del() takes the lock. Move the work cancellations before acquiring conn->lock and use disable_delayed_work_sync() to additionally prevent the works from being rearmed after cancellation, consistent with the pattern used in hci_conn_del().

Why

The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.

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 → Improper Locking → 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: a standard category for the underlying weakness.
CWE-667 ↗

CWE-667: Improper Locking. The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.

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.
CWE-667
A

Official authority intelligence

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

BSI · German · WID-SEC-2026-1252Linux Kernel: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuführen, Sicherheitsmaßnahmen zu umgehen, Informationen offenzulegen, andere nicht näher spezifizierte Auswirkungen zu verursachen und möglicherweise Code auszuführen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260429Security Bulletin 29 Apr 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 29 Apr 2026, published on 29 April 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

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

d?id=CVE-2026-31487 Référence CVE CVE-2026-31488 https://www.cve.org/CVERecord?id=CVE-2026-31488 Référence CVE CVE-2026-31489 https://www.cve.org/CVERecord?id=CVE-2026-31489 Référence CVE CVE-2026-31492 https://www.cve.org/CVERecord?id=CVE-2026-31492 Référence CVE CVE-2026-31494 https://www.cve.org/CVERecord?id=CVE-2026-31494 Référence CVE CVE-2026-31495 https://www.cve.org/CVERecord?id=CVE-2026-31495 Référence CVE CVE-2026-31496 https://www.cve.org/CVERecord?id=CVE-2026-31496 Référence CVE CVE-2026-31497 https://www.cve.org/CVERecord?id=CVE-2026-31497 Référence CVE CVE-2026-31498 https://www.cve.org/CVERecord?id=CVE-2026-31498 Référence CVE CVE-2026-31499 https://www.cve.org/CVERecord?id=CVE-2026-31499 Référence CVE CVE-2026-31500 https://www.cve.org/CVERecord?id=CVE-2026-31500 Référence CVE CVE-2026-31501 https://www.cve.org/CVERecord?id=CVE-2026-31501 Référence CVE CVE-2026-31502 https://www.cve.org/CVERecord?id=CVE-2026-31502 Référence CVE CVE-2026-31503 https://www.cve.org/CVERecord?id=CVE-2026-31503 Référence CVE CVE-2026-31505 https://www.cve.org/CVERecord?id=CVE-2026-31505 Référence CVE CVE-2026-31507 https://www.cve.org/CVERecord?id=CVE-2026-31507 Référence CVE CVE-2026-31508 https://www.cve.org/CVERecord?id=CVE-2026-31508 Référence CVE CVE-2026-31509 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0956Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-31429 Référence CVE CVE-2026-31438 https://www.cve.org/CVERecord?id=CVE-2026-31438 Référence CVE CVE-2026-31450 https://www.cve.org/CVERecord?id=CVE-2026-31450 Référence CVE CVE-2026-31452 https://www.cve.org/CVERecord?id=CVE-2026-31452 Référence CVE CVE-2026-31466 https://www.cve.org/CVERecord?id=CVE-2026-31466 Référence CVE CVE-2026-31469 https://www.cve.org/CVERecord?id=CVE-2026-31469 Référence CVE CVE-2026-31479 https://www.cve.org/CVERecord?id=CVE-2026-31479 Référence CVE CVE-2026-31492 https://www.cve.org/CVERecord?id=CVE-2026-31492 Référence CVE CVE-2026-31495 https://www.cve.org/CVERecord?id=CVE-2026-31495 Référence CVE CVE-2026-31499 https://www.cve.org/CVERecord?id=CVE-2026-31499 Référence CVE CVE-2026-31502 https://www.cve.org/CVERecord?id=CVE-2026-31502 Référence CVE CVE-2026-31503 https://www.cve.org/CVERecord?id=CVE-2026-31503 Référence CVE CVE-2026-31505 https://www.cve.org/CVERecord?id=CVE-2026-31505 Référence CVE CVE-2026-31533 https://www.cve.org/CVERecord?id=CVE-2026-31533 Référence CVE CVE-2026-31555 https://www.cve.org/CVERecord?id=CVE-2026-31555 Référence CVE CVE-2026-31560 https://www.cve.org/CVERecord?id=CVE-2026-31560 Référence CVE CVE-2026-31570 https://www.cve.org/CVERecord?id=CVE-2026-31570 Référence CVE CVE-2026-31580 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-2026-31487 Référence CVE CVE-2026-31488 https://www.cve.org/CVERecord?id=CVE-2026-31488 Référence CVE CVE-2026-31489 https://www.cve.org/CVERecord?id=CVE-2026-31489 Référence CVE CVE-2026-31492 https://www.cve.org/CVERecord?id=CVE-2026-31492 Référence CVE CVE-2026-31494 https://www.cve.org/CVERecord?id=CVE-2026-31494 Référence CVE CVE-2026-31495 https://www.cve.org/CVERecord?id=CVE-2026-31495 Référence CVE CVE-2026-31496 https://www.cve.org/CVERecord?id=CVE-2026-31496 Référence CVE CVE-2026-31497 https://www.cve.org/CVERecord?id=CVE-2026-31497 Référence CVE CVE-2026-31498 https://www.cve.org/CVERecord?id=CVE-2026-31498 Référence CVE CVE-2026-31499 https://www.cve.org/CVERecord?id=CVE-2026-31499 Référence CVE CVE-2026-31500 https://www.cve.org/CVERecord?id=CVE-2026-31500 Référence CVE CVE-2026-31502 https://www.cve.org/CVERecord?id=CVE-2026-31502 Référence CVE CVE-2026-31503 https://www.cve.org/CVERecord?id=CVE-2026-31503 Référence CVE CVE-2026-31505 https://www.cve.org/CVERecord?id=CVE-2026-31505 Référence CVE CVE-2026-31506 https://www.cve.org/CVERecord?id=CVE-2026-31506 Référence CVE CVE-2026-31507 https://www.cve.org/CVERecord?id=CVE-2026-31507 Référence CVE CVE-2026-31508 https://www.cve.org/CVERecord?id=CVE-2026-31508 Référence CVE CVE-2026-31509 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0927Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-31466 Référence CVE CVE-2026-31469 https://www.cve.org/CVERecord?id=CVE-2026-31469 Référence CVE CVE-2026-31474 https://www.cve.org/CVERecord?id=CVE-2026-31474 Référence CVE CVE-2026-31479 https://www.cve.org/CVERecord?id=CVE-2026-31479 Référence CVE CVE-2026-31485 https://www.cve.org/CVERecord?id=CVE-2026-31485 Référence CVE CVE-2026-31492 https://www.cve.org/CVERecord?id=CVE-2026-31492 Référence CVE CVE-2026-31495 https://www.cve.org/CVERecord?id=CVE-2026-31495 Référence CVE CVE-2026-31497 https://www.cve.org/CVERecord?id=CVE-2026-31497 Référence CVE CVE-2026-31498 https://www.cve.org/CVERecord?id=CVE-2026-31498 Référence CVE CVE-2026-31499 https://www.cve.org/CVERecord?id=CVE-2026-31499 Référence CVE CVE-2026-31502 https://www.cve.org/CVERecord?id=CVE-2026-31502 Référence CVE CVE-2026-31503 https://www.cve.org/CVERecord?id=CVE-2026-31503 Référence CVE CVE-2026-31505 https://www.cve.org/CVERecord?id=CVE-2026-31505 Référence CVE CVE-2026-31509 https://www.cve.org/CVERecord?id=CVE-2026-31509 Référence CVE CVE-2026-31510 https://www.cve.org/CVERecord?id=CVE-2026-31510 Référence CVE CVE-2026-31511 https://www.cve.org/CVERecord?id=CVE-2026-31511 Référence CVE CVE-2026-31513 https://www.cve.org/CVERecord?id=CVE-2026-31513 Référence CVE CVE-2026-31520 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-2026-31487 Référence CVE CVE-2026-31488 https://www.cve.org/CVERecord?id=CVE-2026-31488 Référence CVE CVE-2026-31489 https://www.cve.org/CVERecord?id=CVE-2026-31489 Référence CVE CVE-2026-31492 https://www.cve.org/CVERecord?id=CVE-2026-31492 Référence CVE CVE-2026-31494 https://www.cve.org/CVERecord?id=CVE-2026-31494 Référence CVE CVE-2026-31495 https://www.cve.org/CVERecord?id=CVE-2026-31495 Référence CVE CVE-2026-31496 https://www.cve.org/CVERecord?id=CVE-2026-31496 Référence CVE CVE-2026-31497 https://www.cve.org/CVERecord?id=CVE-2026-31497 Référence CVE CVE-2026-31498 https://www.cve.org/CVERecord?id=CVE-2026-31498 Référence CVE CVE-2026-31499 https://www.cve.org/CVERecord?id=CVE-2026-31499 Référence CVE CVE-2026-31500 https://www.cve.org/CVERecord?id=CVE-2026-31500 Référence CVE CVE-2026-31502 https://www.cve.org/CVERecord?id=CVE-2026-31502 Référence CVE CVE-2026-31503 https://www.cve.org/CVERecord?id=CVE-2026-31503 Référence CVE CVE-2026-31505 https://www.cve.org/CVERecord?id=CVE-2026-31505 Référence CVE CVE-2026-31506 https://www.cve.org/CVERecord?id=CVE-2026-31506 Référence CVE CVE-2026-31507 https://www.cve.org/CVERecord?id=CVE-2026-31507 Référence CVE CVE-2026-31508 https://www.cve.org/CVERecord?id=CVE-2026-31508 Référence CVE CVE-2026-31509 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0900Multiples vulnérabilités dans le noyau Linux de SUSE

83-1 du 16 juillet 2026 https://www.suse.com/support/update/announcement/2026/suse-su-20263083-1 Référence CVE CVE-2023-53995 https://www.cve.org/CVERecord?id=CVE-2023-53995 Référence CVE CVE-2025-68324 https://www.cve.org/CVERecord?id=CVE-2025-68324 Référence CVE CVE-2025-71089 https://www.cve.org/CVERecord?id=CVE-2025-71089 Référence CVE CVE-2026-23255 https://www.cve.org/CVERecord?id=CVE-2026-23255 Référence CVE CVE-2026-23393 https://www.cve.org/CVERecord?id=CVE-2026-23393 Référence CVE CVE-2026-23451 https://www.cve.org/CVERecord?id=CVE-2026-23451 Référence CVE CVE-2026-31462 https://www.cve.org/CVERecord?id=CVE-2026-31462 Référence CVE CVE-2026-31499 https://www.cve.org/CVERecord?id=CVE-2026-31499 Référence CVE CVE-2026-31502 https://www.cve.org/CVERecord?id=CVE-2026-31502 Référence CVE CVE-2026-31505 https://www.cve.org/CVERecord?id=CVE-2026-31505 Référence CVE CVE-2026-31533 https://www.cve.org/CVERecord?id=CVE-2026-31533 Référence CVE CVE-2026-31570 https://www.cve.org/CVERecord?id=CVE-2026-31570 Référence CVE CVE-2026-31580 https://www.cve.org/CVERecord?id=CVE-2026-31580 Référence CVE CVE-2026-31586 https://www.cve.org/CVERecord?id=CVE-2026-31586 Référence CVE CVE-2026-31592 https://www.cve.org/CVERecord?id=CVE-2026-31592 Référence CVE CVE-2026-31670 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0864Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-31462 Référence CVE CVE-2026-31464 https://www.cve.org/CVERecord?id=CVE-2026-31464 Référence CVE CVE-2026-31466 https://www.cve.org/CVERecord?id=CVE-2026-31466 Référence CVE CVE-2026-31469 https://www.cve.org/CVERecord?id=CVE-2026-31469 Référence CVE CVE-2026-31473 https://www.cve.org/CVERecord?id=CVE-2026-31473 Référence CVE CVE-2026-31480 https://www.cve.org/CVERecord?id=CVE-2026-31480 Référence CVE CVE-2026-31492 https://www.cve.org/CVERecord?id=CVE-2026-31492 Référence CVE CVE-2026-31493 https://www.cve.org/CVERecord?id=CVE-2026-31493 Référence CVE CVE-2026-31495 https://www.cve.org/CVERecord?id=CVE-2026-31495 Référence CVE CVE-2026-31499 https://www.cve.org/CVERecord?id=CVE-2026-31499 Référence CVE CVE-2026-3150 https://www.cve.org/CVERecord?id=CVE-2026-3150 Référence CVE CVE-2026-31500 https://www.cve.org/CVERecord?id=CVE-2026-31500 Référence CVE CVE-2026-31502 https://www.cve.org/CVERecord?id=CVE-2026-31502 Référence CVE CVE-2026-31504 https://www.cve.org/CVERecord?id=CVE-2026-31504 Référence CVE CVE-2026-31516 https://www.cve.org/CVERecord?id=CVE-2026-31516 Référence CVE CVE-2026-31518 https://www.cve.org/CVERecord?id=CVE-2026-31518 Référence CVE CVE-2026-31546 https://www.cve.org/CVERecord?id=CVE-2026-31546 Référence CVE CVE-2026-31554 https://www.cve.org/CVERecord?id=CV

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0833Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-31454 Référence CVE CVE-2026-31455 https://www.cve.org/CVERecord?id=CVE-2026-31455 Référence CVE CVE-2026-31464 https://www.cve.org/CVERecord?id=CVE-2026-31464 Référence CVE CVE-2026-31469 https://www.cve.org/CVERecord?id=CVE-2026-31469 Référence CVE CVE-2026-31473 https://www.cve.org/CVERecord?id=CVE-2026-31473 Référence CVE CVE-2026-31480 https://www.cve.org/CVERecord?id=CVE-2026-31480 Référence CVE CVE-2026-31492 https://www.cve.org/CVERecord?id=CVE-2026-31492 Référence CVE CVE-2026-31493 https://www.cve.org/CVERecord?id=CVE-2026-31493 Référence CVE CVE-2026-31495 https://www.cve.org/CVERecord?id=CVE-2026-31495 Référence CVE CVE-2026-31499 https://www.cve.org/CVERecord?id=CVE-2026-31499 Référence CVE CVE-2026-3150 https://www.cve.org/CVERecord?id=CVE-2026-3150 Référence CVE CVE-2026-31500 https://www.cve.org/CVERecord?id=CVE-2026-31500 Référence CVE CVE-2026-31504 https://www.cve.org/CVERecord?id=CVE-2026-31504 Référence CVE CVE-2026-31516 https://www.cve.org/CVERecord?id=CVE-2026-31516 Référence CVE CVE-2026-31518 https://www.cve.org/CVERecord?id=CVE-2026-31518 Référence CVE CVE-2026-31546 https://www.cve.org/CVERecord?id=CVE-2026-31546 Référence CVE CVE-2026-31554 https://www.cve.org/CVERecord?id=CVE-2026-31554 Référence CVE CVE-2026-31555 https://www.cve.org/CVERecord?id=CV

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0637Multiples vulnérabilités dans le noyau Linux de Debian

De multiples vulnérabilités ont été découvertes dans le noyau Linux de Debian. Elles permettent à un attaquant de provoquer une élévation de privilèges, une atteinte à la confidentialité des données et un déni de service.

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-013407LinuxのLinux Kernelにおけるリソースのロックに関する脆弱性

Linuxカーネルにおいて、以下の脆弱性が修正されました。BluetoothのL2CAPに関する問題で、l2cap_conn_del()関数内のデッドロックが修正されました。具体的には、l2cap_conn_del()はconn-lockを保持したままinfo_timerとid_addr_timerの両方に対してcancel_delayed_work_sync()を呼び出していました。しかし、ワーク関数であるl2cap_info_timeout()とl2cap_conn_update_id_addr()もconn-lockを取得するため、すでにロックが取得されている状態でワークが実行されている場合に潜在的なAB-BAデッドロックが発生していました。修正では、ワークのキャンセル処理をconn-lockを取得する前に移動し、disable_delayed_work_sync()を用いてキャンセル後にワークが再度登録されるのを防止するように変更しました。このパターンはhci_conn_del()で使用されているものと一致しています。

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: < 6.14, 6.12.88 ≤ 6.12.*, 6.18.21 ≤ 6.18.*, 6.19.11 ≤ 6.19.*, 7.0 ≤ *
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. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 22 Apr 2026 · Last source change 23 May 2026, 16:05 UTC · CWE-667 · Improper Locking

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-2026-24875
Product sourceVendor CSAF · SUSE Product Security Team
Remediation sourceVendor CSAF · SUSE Product Security Team
CWE sourceNIST NVD
NVD statusNVD modified after enrichment

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-2026-24875↗Vendor CSAF · SUSE Product Security Team↗Patch or update reference↗Patch or update reference↗Patch or update reference↗CVE authority or vendor 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-2026-31499 · cve.blacktree.nl