Full vulnerability report · 2026

CVE-2026-31548High confidence

wifi: cfg80211: cancel pmsr_free_wk in cfg80211_pmsr_wdev_down

Linux · Linux

7.8HighCVSS 3.1

Recommended action

Patch only the product branches with a verified fix

High technical severity; prioritise exposed affected systems while verifying vendor guidance. 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

Operational reassessment

Published severity in operational context

Open reassessment dashboard →

Published severityHighOperational priority:Medium, lowered one band.downgradedsince 5 Aug 2026

Evidence used

No CISA KEV confirmation is currently recorded.
Exploitation requires an existing local or physical foothold with privileges.
EPSS is 0.18% 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

Confirm that the asset runs Linux Linux and falls inside the recorded affected range.
Verify the installed build against the product-specific fixed version after deployment.
Validate exposure, authentication requirements and compensating controls in the actual environment.
Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.

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.

Canonical Ubuntu Security: 20 affected package states with no published fix

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 release	Source package	Vendor state	Fixed version	Evidence
Debian trixietrixie · source	`linux`	Vendor fix publishedDebian records a fixed source-package version for this release.	`6.12.85-1`	Debian Security Tracker ↗Source updated 6 Oct 2026
Debian bookwormbookworm · source	`linux`	Vendor fix publishedDebian records a fixed source-package version for this release.	`6.1.170-1`	Debian Security Tracker ↗Source updated 6 Oct 2026
Debian forkyforky · source	`linux`	Vendor fix publishedDebian records a fixed source-package version for this release.	`6.19.10-1`	Debian Security Tracker ↗Source updated 6 Oct 2026
Debian sidsid · source	`linux`	Vendor fix publishedDebian records a fixed source-package version for this release.	`6.19.10-1`	Debian Security Tracker ↗Source updated 6 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-aws`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-azure`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-azure-fde`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-azure-nvidia`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-gcp`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-gke`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-gkeop`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-ibm`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-lowlatency`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-nvidia`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-nvidia-lowlatency`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-nvidia-tegra`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-oem-6.11`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-oracle`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-raspi`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-raspi-realtime`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-realtime`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-riscv`	Affected, 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 feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-xilinx`	Affected, 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 feed`	Canonical 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-2026-31548 · CSAF 2.0 · revision 10 · interimSUSE Product Security TeamCVE-2026-31548

223 known affected

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

kernel-default as component of SUSE Linux Enterprise High Performance Computing 15 SP2
kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP2
kernel-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP2
kernel-macros as component of SUSE Linux Enterprise High Performance Computing 15 SP2
kernel-source as component of SUSE Linux Enterprise High Performance Computing 15 SP2
reiserfs-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP2
kernel-default as component of SUSE Linux Enterprise High Performance Computing 15 SP3
kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP3
kernel-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP3
kernel-macros as component of SUSE Linux Enterprise High Performance Computing 15 SP3
kernel-source as component of SUSE Linux Enterprise High Performance Computing 15 SP3
reiserfs-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP3

Summary: In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: cancel pmsr_free_wk in cfg80211_pmsr_wdev_down When the nl80211 socket that originated a PMSR request is closed, cfg80211_release_pmsr() sets the request's nl_portid to zero and schedules pmsr_free_wk to process the abort asynchronously. If the interface is concurrently torn down before that work runs, cfg80211_pmsr_wdev_down() calls cfg80211_pmsr_process_abort() directly. However, the already- scheduled pmsr_free_wk work item remains pending and may run after the interface has been removed from the driver. This could cause the driver's abort_pmsr callback to operate on a torn-down interface, leading to undefined behavior and potential crashes. Cancel pmsr_free_wk synchronously in cfg80211_pmsr_wdev_down() before calling cfg80211_pmsr_process_abort(). This ensures any pending or in-progress work is drained before interface teardown proceeds, preventing the work from invoking the driver abort callback after the interface is gone.
Remediation: To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

Recommended actionPatch only the product branches with a verified fix

Fix availability varies by product

What, why and how

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: cancel pmsr_free_wk in cfg80211_pmsr_wdev_down When the nl80211 socket that originated a PMSR request is closed, cfg80211_release_pmsr() sets the request's nl_portid to zero and schedules pmsr_free_wk to process the abort asynchronously. If the interface is concurrently torn down before that work runs, cfg80211_pmsr_wdev_down() calls cfg80211_pmsr_process_abort() directly. However, the already- scheduled pmsr_free_wk work item remains pending and may run after the interface has been removed from the driver. This could cause the driver's abort_pmsr callback to operate on a torn-down interface, leading to undefined behavior and potential crashes. Cancel pmsr_free_wk synchronously in cfg80211_pmsr_wdev_down() before calling cfg80211_pmsr_process_abort(). This ensures any pending or in-progress work is drained before interface teardown proceeds, preventing the work from invoking the driver abort callback after the interface is gone.

What

Why

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

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may disrupt the affected service.

What

Why

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

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may disrupt the affected service.

Exploit reality and attack path

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

Observed exploitation

Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.

No confirmed evidence

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

Public PoC / exploit material

Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.

None recorded

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

Likely attack path: local access → vulnerable operation → disrupt the affected service
Attack surface: Local
Privileges required: Low: a basic authenticated account is required
User interaction: None
Attack complexity: Low: no specialised conditions are recorded
Security boundary: Unchanged: impact remains within the vulnerable component's security authority
Weakness ? CWE means Common Weakness Enumeration.: CWE not yet assigned
CVSS vector ? CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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.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: The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.

Denial of service

Official authority intelligence

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

ENISA EUVD · EUVD-2026-25441Official EUVD mapping

0 linked advisory records.

Official EUVD record ↗

BSI · German · WID-SEC-2026-1279Linux Kernel: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um nicht näher spezifizierte Angriffe durchzuführen, welche zu einem Denial-of-Service-Zustand, einer Rechteausweitung, der Ausführung von Code oder einer Speicherbeschädigung führen könnten.

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-2026-31525 Référence CVE CVE-2026-31527 https://www.cve.org/CVERecord?id=CVE-2026-31527 Référence CVE CVE-2026-31528 https://www.cve.org/CVERecord?id=CVE-2026-31528 Référence CVE CVE-2026-31530 https://www.cve.org/CVERecord?id=CVE-2026-31530 Référence CVE CVE-2026-31532 https://www.cve.org/CVERecord?id=CVE-2026-31532 Référence CVE CVE-2026-31540 https://www.cve.org/CVERecord?id=CVE-2026-31540 Référence CVE CVE-2026-31542 https://www.cve.org/CVERecord?id=CVE-2026-31542 Référence CVE CVE-2026-31545 https://www.cve.org/CVERecord?id=CVE-2026-31545 Référence CVE CVE-2026-31546 https://www.cve.org/CVERecord?id=CVE-2026-31546 Référence CVE CVE-2026-31548 https://www.cve.org/CVERecord?id=CVE-2026-31548 Référence CVE CVE-2026-31549 https://www.cve.org/CVERecord?id=CVE-2026-31549 Référence CVE CVE-2026-31550 https://www.cve.org/CVERecord?id=CVE-2026-31550 Référence CVE CVE-2026-31551 https://www.cve.org/CVERecord?id=CVE-2026-31551 Référence CVE CVE-2026-31552 https://www.cve.org/CVERecord?id=CVE-2026-31552 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=CVE-2026-31555 Référence CVE CVE-2026-31556 https://www.cve.org/CVERecord?id=CVE-2026-31556 Référence CVE CVE-2026-31557 https://www.cve.org/CVERecord?id=

Official advisory ↗

CERT-FR · French · CERTFR-2026-AVI-1064Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-31514 Référence CVE CVE-2026-31520 https://www.cve.org/CVERecord?id=CVE-2026-31520 Référence CVE CVE-2026-31522 https://www.cve.org/CVERecord?id=CVE-2026-31522 Référence CVE CVE-2026-31523 https://www.cve.org/CVERecord?id=CVE-2026-31523 Référence CVE CVE-2026-31524 https://www.cve.org/CVERecord?id=CVE-2026-31524 Référence CVE CVE-2026-31532 https://www.cve.org/CVERecord?id=CVE-2026-31532 Référence CVE CVE-2026-31540 https://www.cve.org/CVERecord?id=CVE-2026-31540 Référence CVE CVE-2026-31542 https://www.cve.org/CVERecord?id=CVE-2026-31542 Référence CVE CVE-2026-31545 https://www.cve.org/CVERecord?id=CVE-2026-31545 Référence CVE CVE-2026-31548 https://www.cve.org/CVERecord?id=CVE-2026-31548 Référence CVE CVE-2026-31549 https://www.cve.org/CVERecord?id=CVE-2026-31549 Référence CVE CVE-2026-31551 https://www.cve.org/CVERecord?id=CVE-2026-31551 Référence CVE CVE-2026-31552 https://www.cve.org/CVERecord?id=CVE-2026-31552 Référence CVE CVE-2026-31557 https://www.cve.org/CVERecord?id=CVE-2026-31557 Référence CVE CVE-2026-31561 https://www.cve.org/CVERecord?id=CVE-2026-31561 Référence CVE CVE-2026-31566 https://www.cve.org/CVERecord?id=CVE-2026-31566 Référence CVE CVE-2026-31570 https://www.cve.org/CVERecord?id=CVE-2026-31570 Référence CVE CVE-2026-31576 https://www.cve.org/CVERecord?id=

Official advisory ↗

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

Official advisory ↗

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

d?id=CVE-2026-31513 Référence CVE CVE-2026-31520 https://www.cve.org/CVERecord?id=CVE-2026-31520 Référence CVE CVE-2026-31522 https://www.cve.org/CVERecord?id=CVE-2026-31522 Référence CVE CVE-2026-31523 https://www.cve.org/CVERecord?id=CVE-2026-31523 Référence CVE CVE-2026-31524 https://www.cve.org/CVERecord?id=CVE-2026-31524 Référence CVE CVE-2026-31532 https://www.cve.org/CVERecord?id=CVE-2026-31532 Référence CVE CVE-2026-31533 https://www.cve.org/CVERecord?id=CVE-2026-31533 Référence CVE CVE-2026-31540 https://www.cve.org/CVERecord?id=CVE-2026-31540 Référence CVE CVE-2026-31545 https://www.cve.org/CVERecord?id=CVE-2026-31545 Référence CVE CVE-2026-31548 https://www.cve.org/CVERecord?id=CVE-2026-31548 Référence CVE CVE-2026-31549 https://www.cve.org/CVERecord?id=CVE-2026-31549 Référence CVE CVE-2026-31551 https://www.cve.org/CVERecord?id=CVE-2026-31551 Référence CVE CVE-2026-31552 https://www.cve.org/CVERecord?id=CVE-2026-31552 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-2026-31561 https://www.cve.org/CVERecord?id=CVE-2026-31561 Référence CVE CVE-2026-31566 https://www.cve.org/CVERecord?id=CVE-2026-31566 Référence CVE CVE-2026-31568 https://www.cve.org/CVERecord?id=

Official advisory ↗

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

Official advisory ↗

CERT-FR · French · CERTFR-2026-AVI-0547Multiples vulnérabilités dans le noyau Linux de Debian LTS

d?id=CVE-2026-31520 Référence CVE CVE-2026-31521 https://www.cve.org/CVERecord?id=CVE-2026-31521 Référence CVE CVE-2026-31522 https://www.cve.org/CVERecord?id=CVE-2026-31522 Référence CVE CVE-2026-31523 https://www.cve.org/CVERecord?id=CVE-2026-31523 Référence CVE CVE-2026-31524 https://www.cve.org/CVERecord?id=CVE-2026-31524 Référence CVE CVE-2026-31533 https://www.cve.org/CVERecord?id=CVE-2026-31533 Référence CVE CVE-2026-31540 https://www.cve.org/CVERecord?id=CVE-2026-31540 Référence CVE CVE-2026-31545 https://www.cve.org/CVERecord?id=CVE-2026-31545 Référence CVE CVE-2026-31546 https://www.cve.org/CVERecord?id=CVE-2026-31546 Référence CVE CVE-2026-31548 https://www.cve.org/CVERecord?id=CVE-2026-31548 Référence CVE CVE-2026-31549 https://www.cve.org/CVERecord?id=CVE-2026-31549 Référence CVE CVE-2026-31550 https://www.cve.org/CVERecord?id=CVE-2026-31550 Référence CVE CVE-2026-31551 https://www.cve.org/CVERecord?id=CVE-2026-31551 Référence CVE CVE-2026-31552 https://www.cve.org/CVERecord?id=CVE-2026-31552 Référence CVE CVE-2026-31555 https://www.cve.org/CVERecord?id=CVE-2026-31555 Référence CVE CVE-2026-31563 https://www.cve.org/CVERecord?id=CVE-2026-31563 Référence CVE CVE-2026-31565 https://www.cve.org/CVERecord?id=CVE-2026-31565 Référence CVE CVE-2026-31566 https://www.cve.org/CVERecord?id=

Official advisory ↗

CERT-FR · French · CERTFR-2026-AVI-0548Multiples vulnérabilités dans le noyau Linux de Debian

d?id=CVE-2026-31528 Référence CVE CVE-2026-31530 https://www.cve.org/CVERecord?id=CVE-2026-31530 Référence CVE CVE-2026-31531 https://www.cve.org/CVERecord?id=CVE-2026-31531 Référence CVE CVE-2026-31532 https://www.cve.org/CVERecord?id=CVE-2026-31532 Référence CVE CVE-2026-31533 https://www.cve.org/CVERecord?id=CVE-2026-31533 Référence CVE CVE-2026-31540 https://www.cve.org/CVERecord?id=CVE-2026-31540 Référence CVE CVE-2026-31542 https://www.cve.org/CVERecord?id=CVE-2026-31542 Référence CVE CVE-2026-31545 https://www.cve.org/CVERecord?id=CVE-2026-31545 Référence CVE CVE-2026-31546 https://www.cve.org/CVERecord?id=CVE-2026-31546 Référence CVE CVE-2026-31548 https://www.cve.org/CVERecord?id=CVE-2026-31548 Référence CVE CVE-2026-31549 https://www.cve.org/CVERecord?id=CVE-2026-31549 Référence CVE CVE-2026-31550 https://www.cve.org/CVERecord?id=CVE-2026-31550 Référence CVE CVE-2026-31551 https://www.cve.org/CVERecord?id=CVE-2026-31551 Référence CVE CVE-2026-31552 https://www.cve.org/CVERecord?id=CVE-2026-31552 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=CVE-2026-31555 Référence CVE CVE-2026-31556 https://www.cve.org/CVERecord?id=CVE-2026-31556 Référence CVE CVE-2026-31557 https://www.cve.org/CVERecord?id=

Official advisory ↗

JVN iPedia · Japanese · JVNDB-2026-013299LinuxのLinux Kernelにおける不特定の脆弱性

Linuxカーネルにおいて、以下の脆弱性が修正されました。wifi: cfg80211: cfg80211_pmsr_wdev_down内でpmsr_free_wkのキャンセルを行います。PMSRリクエストを発生させたnl80211ソケットが閉じられると、cfg80211_release_pmsr()はリクエストのnl_portidをゼロに設定し、abort処理を非同期で行うためにpmsr_free_wkをスケジュールします。インターフェースがその作業が実行される前に同時に切断されると、cfg80211_pmsr_wdev_down()は直接cfg80211_pmsr_process_abort()を呼び出します。しかし、すでにスケジュールされたpmsr_free_wk作業項目が保留状態のままで残り、インターフェースがドライバーから削除された後に実行される可能性があります。これにより、ドライバーのabort_pmsrコールバックが切断済みのインターフェース上で動作し、未定義動作やクラッシュを引き起こす可能性があります。そのため、cfg80211_pmsr_wdev_down()内でcfg80211_pmsr_process_abort()を呼び出す前にpmsr_free_wkを同期的にキャンセルするようにしました。これにより、保留中または進行中の作業がすべて処理されてからインターフェースの切断が進み、インターフェースが消失した後にドライバーのabortコールバックが呼び出されることを防ぎます。

Official advisory ↗

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: kernel-default as component of SUSE Linux Enterprise High Performance Computing 15 SP2
kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP2
kernel-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP2
kernel-macros as component of SUSE Linux Enterprise High Performance Computing 15 SP2
kernel-source as component of SUSE Linux Enterprise High Performance Computing 15 SP2
reiserfs-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP2
kernel-default as component of SUSE Linux Enterprise High Performance Computing 15 SP3
kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP3
kernel-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP3
kernel-macros as component of SUSE Linux Enterprise High Performance Computing 15 SP3
kernel-source as component of SUSE Linux Enterprise High Performance Computing 15 SP3
reiserfs-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP3
kernel-default as component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
kernel-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
kernel-macros as component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
kernel-source as component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
reiserfs-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
kernel-default as component of SUSE Linux Enterprise High Performance Computing 15 SP4
kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP4
kernel-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP4
kernel-macros as component of SUSE Linux Enterprise High Performance Computing 15 SP4
kernel-source as component of SUSE Linux Enterprise High Performance Computing 15 SP4
reiserfs-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP4
cluster-md-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
dlm-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
gfs2-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
kernel-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
kernel-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
and 193 more
Fixed: Linux: < 5.0, 6.1.167 ≤ 6.1.*, 6.6.130 ≤ 6.6.*, 6.12.78 ≤ 6.12.*, 6.18.20 ≤ 6.18.*, 6.19.10 ≤ 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.

Evidence and provenance

Published 24 Apr 2026 · Last source change 5 Aug 2026, 12:23 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-2026-25441

Product sourceVendor CSAF · SUSE Product Security Team

Remediation sourceVendor CSAF · SUSE Product Security Team

CWE sourceUnavailable

NVD statusNVD enriched

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 ↗

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

2026-04-24CVE published

2026-08-05Fixed release or patch reference recorded

ENISA EUVD · EUVD-2026-25441↗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.

wifi: cfg80211: cancel pmsr_free_wk in cfg80211_pmsr_wdev_down

Published severity in operational context

Evidence used

Compensating controls

Verification

Remediation availability differs by product scope

Release-specific package status

Authoritative vendor CSAF and VEX advisories

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

ENISA European Vulnerability Database

EUVD-2026-25441

What, why and how

Exploit reality and attack path

Official authority intelligence

Patch and workaround

Evidence and provenance

What changed after publication