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Full vulnerability report · 2026
CVE-2026-72123High confidence

can: bcm: defer rx_op deallocation to workqueue to fix thrtimer UAF

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 204 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 severityHighOperational priority:Medium, lowered one band.downgradedsince 17 Aug 2026

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • Exploitation requires an existing local or physical foothold with privileges.
  • EPSS is 0.17% 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: As exposure requiresRemediation target: Within 365 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 204 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.6.12.100-1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian bookwormbookworm · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.1.180-1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian forkyforky · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.7.1.5-1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian sidsid · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.7.1.5-1Debian 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.

2 current
CVE-2026-72123 · CSAF 2.0 · revision 14 · interimSUSE Product Security TeamCVE-2026-72123
67 known affected

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

  • 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
  • kernel-macros as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
  • kernel-source as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
  • ocfs2-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
  • cluster-md-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5
  • dlm-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5
  • gfs2-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5
Summary
In the Linux kernel, the following vulnerability has been resolved: can: bcm: defer rx_op deallocation to workqueue to fix thrtimer UAF Commit f1b4e32aca08 ("can: bcm: use call_rcu() instead of costly synchronize_rcu()") replaced synchronize_rcu() in bcm_delete_rx_op() with call_rcu() and introduced the RX_NO_AUTOTIMER flag. However, this flag check was omitted for thrtimer in the packet rx fast-path. During BCM RX operation teardown, a concurrent RCU reader (bcm_rx_handler) can race and re-arm thrtimer via bcm_rx_update_and_send() after call_rcu() has been scheduled. Once the RCU grace period elapses, bcm_op is freed. The subsequently firing thrtimer then dereferences the deallocated op, causing a UAF. Adding flag checks to the rx fast-path (bcm_rx_update_and_send) does not fully close the TOCTOU race and introduces latency for every CAN frame. Conversely, calling hrtimer_cancel() directly inside the RCU callback (softirq context) is fatal as hrtimer_cancel() can sleep, triggering a "scheduling while atomic" panic. Resolve this by deferring the timer cancellation and memory free to a dedicated unbound workqueue (bcm_wq). The RCU callback now queues a work item to bcm_wq, which safely cancels both timers and deallocates memory in sleepable process context. A dedicated workqueue is used to prevent system-wide WQ saturation and is cleanly flushed/destroyed on module unload to avoid rmmod page faults. Since the deferred work can now outlive the calling context by an unbounded amount, also take a reference on op->sk when it is assigned and drop it only once the deferred work has cancelled both timers, so a socket can no longer be freed out from under a still-armed timer whose callback (bcm_send_to_user()) dereferences op->sk.
Remediation
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
CVE-2026-72123 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitykernel: can: bcm: thrtimer use-after-free during RX operation teardown
184 known affected

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

  • kernel as a component of Red Hat Enterprise Linux 10
  • kernel-64k as a component of Red Hat Enterprise Linux 10
  • kernel-64k-core as a component of Red Hat Enterprise Linux 10
  • kernel-64k-debug as a component of Red Hat Enterprise Linux 10
  • kernel-64k-debug-core as a component of Red Hat Enterprise Linux 10
  • kernel-64k-debug-devel as a component of Red Hat Enterprise Linux 10
  • kernel-64k-debug-devel-matched as a component of Red Hat Enterprise Linux 10
  • kernel-64k-debug-modules as a component of Red Hat Enterprise Linux 10
  • kernel-64k-debug-modules-core as a component of Red Hat Enterprise Linux 10
  • kernel-64k-debug-modules-extra as a component of Red Hat Enterprise Linux 10
  • kernel-64k-devel as a component of Red Hat Enterprise Linux 10
  • kernel-64k-devel-matched as a component of Red Hat Enterprise Linux 10
Summary
A use-after-free flaw was found in the Linux kernel's CAN BCM (Broadcast Manager) subsystem. During RX operation teardown, a concurrent receive handler can race and re-arm the throttle timer after the operation has been scheduled for deallocation. When the deallocation completes, the timer is still armed and subsequently fires against freed memory, leading to a use-after-free. A local attacker could use this flaw to escalate privileges or cause a denial of service.
Remediation
Affected
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-2026-58881

No EUVD known-exploited evidence

In the Linux kernel, the following vulnerability has been resolved: can: bcm: defer rx_op deallocation to workqueue to fix thrtimer UAF Commit f1b4e32aca08 ("can: bcm: use call_rcu() instead of costly synchronize_rcu()") replaced synchronize_rcu() in bcm_delete_rx_op() with call_rcu() and introduced the RX_NO_AUTOTIMER flag. However, this flag check was omitted for thrtimer in the packet rx fast-path. During BCM RX operation teardown, a concurrent RCU reader (bcm_rx_handler) can race and re-arm thrtimer via bcm_rx_update_and_send() after call_rcu() has been scheduled. Once the RCU grace period elapses, bcm_op is freed. The subsequently firing thrtimer then dereferences the deallocated op, causing a UAF. Adding flag checks to the rx fast-path (bcm_rx_update_and_send) does not fully close the TOCTOU race and introduces latency for every CAN frame. Conversely, calling hrtimer_cancel() directly inside the RCU callback (softirq context) is fatal as hrtimer_cancel() can sleep, triggering a "scheduling while atomic" panic. Resolve this by deferring the timer cancellation and memory free to a dedicated unbound workqueue (bcm_wq). The RCU callback now queues a work item to bcm_wq, which safely cancels both timers and deallocates memory in sleepable process context. A dedicated workqueue is used to prevent system-wide WQ saturation and is cleanly flushed/destroyed on module unload to avoid rmmod page faults. Since the deferred work can now outlive the calling context by an unbounded amount, also take a reference on op->sk when it is assigned and drop it only once the deferred work has cancelled both timers, so a socket can no longer be freed out from under a still-armed timer whose callback (bcm_send_to_user()) dereferences op->sk.

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
7.8 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionPatch 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 204 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: can: bcm: defer rx_op deallocation to workqueue to fix thrtimer UAF Commit f1b4e32aca08 ("can: bcm: use call_rcu() instead of costly synchronize_rcu()") replaced synchronize_rcu() in bcm_delete_rx_op() with call_rcu() and introduced the RX_NO_AUTOTIMER flag. However, this flag check was omitted for thrtimer in the packet rx fast-path. During BCM RX operation teardown, a concurrent RCU reader (bcm_rx_handler) can race and re-arm thrtimer via bcm_rx_update_and_send() after call_rcu() has been scheduled. Once the RCU grace period elapses, bcm_op is freed. The subsequently firing thrtimer then dereferences the deallocated op, causing a UAF. Adding flag checks to the rx fast-path (bcm_rx_update_and_send) does not fully close the TOCTOU race and introduces latency for every CAN frame. Conversely, calling hrtimer_cancel() directly inside the RCU callback (softirq context) is fatal as hrtimer_cancel() can sleep, triggering a "scheduling while atomic" panic. Resolve this by deferring the timer cancellation and memory free to a dedicated unbound workqueue (bcm_wq). The RCU callback now queues a work item to bcm_wq, which safely cancels both timers and deallocates memory in sleepable process context. A dedicated workqueue is used to prevent system-wide WQ saturation and is cleanly flushed/destroyed on module unload to avoid rmmod page faults. Since the deferred work can now outlive the calling context by an unbounded amount, also take a reference on op->sk when it is assigned and drop it only once the deferred work has cancelled both timers, so a socket can no longer be freed out from under a still-armed timer whose callback (bcm_send_to_user()) dereferences op->sk.

What

In the Linux kernel, the following vulnerability has been resolved: can: bcm: defer rx_op deallocation to workqueue to fix thrtimer UAF Commit f1b4e32aca08 ("can: bcm: use call_rcu() instead of costly synchronize_rcu()") replaced synchronize_rcu() in bcm_delete_rx_op() with call_rcu() and introduced the RX_NO_AUTOTIMER flag. However, this flag check was omitted for thrtimer in the packet rx fast-path. During BCM RX operation teardown, a concurrent RCU reader (bcm_rx_handler) can race and re-arm thrtimer via bcm_rx_update_and_send() after call_rcu() has been scheduled. Once the RCU grace period elapses, bcm_op is freed. The subsequently firing thrtimer then dereferences the deallocated op, causing a UAF. Adding flag checks to the rx fast-path (bcm_rx_update_and_send) does not fully close the TOCTOU race and introduces latency for every CAN frame. Conversely, calling hrtimer_cancel() directly inside the RCU callback (softirq context) is fatal as hrtimer_cancel() can sleep, triggering a "scheduling while atomic" panic. Resolve this by deferring the timer cancellation and memory free to a dedicated unbound workqueue (bcm_wq). The RCU callback now queues a work item to bcm_wq, which safely cancels both timers and deallocates memory in sleepable process context. A dedicated workqueue is used to prevent system-wide WQ saturation and is cleanly flushed/destroyed on module unload to avoid rmmod page faults. Since the deferred work can now outlive the calling context by an unbounded amount, also take a reference on op->sk when it is assigned and drop it only once the deferred work has cancelled both timers, so a socket can no longer be freed out from under a still-armed timer whose callback (bcm_send_to_user()) dereferences op->sk.

Why

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

How

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

What

In the Linux kernel, the following vulnerability has been resolved: can: bcm: defer rx_op deallocation to workqueue to fix thrtimer UAF Commit f1b4e32aca08 ("can: bcm: use call_rcu() instead of costly synchronize_rcu()") replaced synchronize_rcu() in bcm_delete_rx_op() with call_rcu() and introduced the RX_NO_AUTOTIMER flag. However, this flag check was omitted for thrtimer in the packet rx fast-path. During BCM RX operation teardown, a concurrent RCU reader (bcm_rx_handler) can race and re-arm thrtimer via bcm_rx_update_and_send() after call_rcu() has been scheduled. Once the RCU grace period elapses, bcm_op is freed. The subsequently firing thrtimer then dereferences the deallocated op, causing a UAF. Adding flag checks to the rx fast-path (bcm_rx_update_and_send) does not fully close the TOCTOU race and introduces latency for every CAN frame. Conversely, calling hrtimer_cancel() directly inside the RCU callback (softirq context) is fatal as hrtimer_cancel() can sleep, triggering a "scheduling while atomic" panic. Resolve this by deferring the timer cancellation and memory free to a dedicated unbound workqueue (bcm_wq). The RCU callback now queues a work item to bcm_wq, which safely cancels both timers and deallocates memory in sleepable process context. A dedicated workqueue is used to prevent system-wide WQ saturation and is cleanly flushed/destroyed on module unload to avoid rmmod page faults. Since the deferred work can now outlive the calling context by an unbounded amount, also take a reference on op->sk when it is assigned and drop it only once the deferred work has cancelled both timers, so a socket can no longer be freed out from under a still-armed timer whose callback (bcm_send_to_user()) dereferences op->sk.

Why

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

How

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

02

Exploit reality and attack path

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

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

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

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

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

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

Official authority intelligence

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

ENISA EUVD · EUVD-2026-58881Official EUVD mapping

In the Linux kernel, the following vulnerability has been resolved: can: bcm: defer rx_op deallocation to workqueue to fix thrtimer UAF Commit f1b4e32aca08 ("can: bcm: use call_rcu() instead of costly synchronize_rcu()") replaced synchronize_rcu() in bcm_delete_rx_op() with call_rcu() and introduced the RX_NO_AUTOTIMER flag. However, this flag check was omitted for thrtimer in the packet rx fast-path. During BCM RX operation teardown, a concurrent RCU reader (bcm_rx_handler) can race and re-arm thrtimer via bcm_rx_update_and_send() after call_rcu() has been scheduled. Once the RCU grace period elapses, bcm_op is freed. The subsequently firing thrtimer then dereferences the deallocated op, causing a UAF. Adding flag checks to the rx fast-path (bcm_rx_update_and_send) does not fully close the TOCTOU race and introduces latency for every CAN frame. Conversely, calling hrtimer_cancel() directly inside the RCU callback (softirq context) is fatal as hrtimer_cancel() can sleep, triggering a "scheduling while atomic" panic. Resolve this by deferring the timer cancellation and memory free to a dedicated unbound workqueue (bcm_wq). The RCU callback now queues a work item to bcm_wq, which safely cancels both timers and deallocates memory in sleepable process context. A dedicated workqueue is used to prevent system-wide WQ saturation and is cleanly flushed/destroyed on module unload to avoid rmmod page faults. Since the deferred work can now outlive the calling context by an unbounded amount, also take a reference on op->sk when it is assigned and drop it only once the deferred work has cancelled both timers, so a socket can no longer be freed out from under a still-armed timer whose callback (bcm_send_to_user()) dereferences op->sk.

Official EUVD record ↗
BSI · German · WID-SEC-2026-2852Linux Kernel: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Linux Kernel ausnutzen, um root Rechte zu erlangen, um einen Denial of Service herbeizuführen oder einen nicht näher spezifizierten Angriff durchzuführen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260819Security Bulletin 19 Aug 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 19 Aug 2026, published on 19 August 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

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

d?id=CVE-2026-72017 Référence CVE CVE-2026-72020 https://www.cve.org/CVERecord?id=CVE-2026-72020 Référence CVE CVE-2026-72036 https://www.cve.org/CVERecord?id=CVE-2026-72036 Référence CVE CVE-2026-72069 https://www.cve.org/CVERecord?id=CVE-2026-72069 Référence CVE CVE-2026-72072 https://www.cve.org/CVERecord?id=CVE-2026-72072 Référence CVE CVE-2026-72083 https://www.cve.org/CVERecord?id=CVE-2026-72083 Référence CVE CVE-2026-72084 https://www.cve.org/CVERecord?id=CVE-2026-72084 Référence CVE CVE-2026-72086 https://www.cve.org/CVERecord?id=CVE-2026-72086 Référence CVE CVE-2026-72108 https://www.cve.org/CVERecord?id=CVE-2026-72108 Référence CVE CVE-2026-72123 https://www.cve.org/CVERecord?id=CVE-2026-72123 Référence CVE CVE-2026-72135 https://www.cve.org/CVERecord?id=CVE-2026-72135 Référence CVE CVE-2026-72138 https://www.cve.org/CVERecord?id=CVE-2026-72138 Référence CVE CVE-2026-72142 https://www.cve.org/CVERecord?id=CVE-2026-72142 Référence CVE CVE-2026-72164 https://www.cve.org/CVERecord?id=CVE-2026-72164 Référence CVE CVE-2026-72251 https://www.cve.org/CVERecord?id=CVE-2026-72251 Référence CVE CVE-2026-72262 https://www.cve.org/CVERecord?id=CVE-2026-72262 Référence CVE CVE-2026-72282 https://www.cve.org/CVERecord?id=CVE-2026-72282 Référence CVE CVE-2026-72284 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-2026-72020 Référence CVE CVE-2026-72032 https://www.cve.org/CVERecord?id=CVE-2026-72032 Référence CVE CVE-2026-72035 https://www.cve.org/CVERecord?id=CVE-2026-72035 Référence CVE CVE-2026-72036 https://www.cve.org/CVERecord?id=CVE-2026-72036 Référence CVE CVE-2026-72046 https://www.cve.org/CVERecord?id=CVE-2026-72046 Référence CVE CVE-2026-72069 https://www.cve.org/CVERecord?id=CVE-2026-72069 Référence CVE CVE-2026-72072 https://www.cve.org/CVERecord?id=CVE-2026-72072 Référence CVE CVE-2026-72083 https://www.cve.org/CVERecord?id=CVE-2026-72083 Référence CVE CVE-2026-72084 https://www.cve.org/CVERecord?id=CVE-2026-72084 Référence CVE CVE-2026-72123 https://www.cve.org/CVERecord?id=CVE-2026-72123 Référence CVE CVE-2026-72132 https://www.cve.org/CVERecord?id=CVE-2026-72132 Référence CVE CVE-2026-72221 https://www.cve.org/CVERecord?id=CVE-2026-72221 Référence CVE CVE-2026-72222 https://www.cve.org/CVERecord?id=CVE-2026-72222 Référence CVE CVE-2026-72251 https://www.cve.org/CVERecord?id=CVE-2026-72251 Référence CVE CVE-2026-72254 https://www.cve.org/CVERecord?id=CVE-2026-72254 Référence CVE CVE-2026-72262 https://www.cve.org/CVERecord?id=CVE-2026-72262 Référence CVE CVE-2026-72288 https://www.cve.org/CVERecord?id=CVE-2026-72288 Référence CVE CVE-2026-72289 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-2026-72020 Référence CVE CVE-2026-72032 https://www.cve.org/CVERecord?id=CVE-2026-72032 Référence CVE CVE-2026-72035 https://www.cve.org/CVERecord?id=CVE-2026-72035 Référence CVE CVE-2026-72036 https://www.cve.org/CVERecord?id=CVE-2026-72036 Référence CVE CVE-2026-72046 https://www.cve.org/CVERecord?id=CVE-2026-72046 Référence CVE CVE-2026-72069 https://www.cve.org/CVERecord?id=CVE-2026-72069 Référence CVE CVE-2026-72072 https://www.cve.org/CVERecord?id=CVE-2026-72072 Référence CVE CVE-2026-72083 https://www.cve.org/CVERecord?id=CVE-2026-72083 Référence CVE CVE-2026-72084 https://www.cve.org/CVERecord?id=CVE-2026-72084 Référence CVE CVE-2026-72123 https://www.cve.org/CVERecord?id=CVE-2026-72123 Référence CVE CVE-2026-72132 https://www.cve.org/CVERecord?id=CVE-2026-72132 Référence CVE CVE-2026-72221 https://www.cve.org/CVERecord?id=CVE-2026-72221 Référence CVE CVE-2026-72222 https://www.cve.org/CVERecord?id=CVE-2026-72222 Référence CVE CVE-2026-72251 https://www.cve.org/CVERecord?id=CVE-2026-72251 Référence CVE CVE-2026-72254 https://www.cve.org/CVERecord?id=CVE-2026-72254 Référence CVE CVE-2026-72262 https://www.cve.org/CVERecord?id=CVE-2026-72262 Référence CVE CVE-2026-72288 https://www.cve.org/CVERecord?id=CVE-2026-72288 Référence CVE CVE-2026-72289 https://www.cve.org/CVERecord?id=

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix availability varies by product
Affected
Fixed
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 15 Aug 2026 · Last source change 19 Aug 2026, 16:36 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 2026-08-23
European sourceENISA EUVD · EUVD-2026-58881
Product sourceVendor CSAF · SUSE Product Security Team
Remediation sourceVendor CSAF · SUSE Product Security Team
CWE sourceUnavailable
NVD statusNVD received

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

Material change intelligence

What changed after publication

View recent updates ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    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; kernel-macros as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-source as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; ocfs2-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; cluster-md-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5; dlm-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5; gfs2-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5; kernel-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5; kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP5; kernel-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP5; kernel-macros as component of SUSE Linux Enterprise High Performance Computing 15 SP5; kernel-source as component of SUSE Linux Enterprise High Performance Computing 15 SP5; ocfs2-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5; reiserfs-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5; kernel-default as component of SUSE Linux Enterprise Micro 5.5; kernel-devel-rt as component of SUSE Linux Enterprise Micro 5.5; kernel-macros as component of SUSE Linux Enterprise Micro 5.5; kernel-source as component of SUSE Linux Enterprise Micro 5.5; kernel-source-rt as component of SUSE Linux Enterprise Micro 5.5; cluster-md-kmp-default as component of SUSE Linux Enterprise Server 15 SP5-LTSS; dlm-kmp-default as component of SUSE Linux Enterprise Server 15 SP5-LTSS; gfs2-kmp-default as component of SUSE Linux Enterprise Server 15 SP5-LTSS; kernel-default as component of SUSE Linux Enterprise Server 15 SP5-LTSS; kernel-default-devel as component of SUSE Linux Enterprise Server 15 SP5-LTSS; kernel-devel as component of SUSE Linux Enterprise Server 15 SP5-LTSS; and 69 more · Fixed: cluster-md-kmp-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; dlm-kmp-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; gfs2-kmp-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-64kb-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-64kb-devel-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-default-base-5.14.21-150500.55.189.1.150500.6.87.4 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-default-devel-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-devel-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-docs-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-macros-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-obs-build-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-source-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-syms-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; ocfs2-kmp-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; cluster-md-kmp-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; dlm-kmp-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; gfs2-kmp-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-64kb-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-64kb-devel-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-default-base-5.14.21-150500.55.189.1.150500.6.87.4 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-default-devel-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-devel-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-docs-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-macros-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-obs-build-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-source-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-syms-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; ocfs2-kmp-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; and 66 more
    After
    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; kernel-macros as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-source as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; ocfs2-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; cluster-md-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5; dlm-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5; gfs2-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5; kernel-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5; kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP5; kernel-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP5; kernel-macros as component of SUSE Linux Enterprise High Performance Computing 15 SP5; kernel-source as component of SUSE Linux Enterprise High Performance Computing 15 SP5; ocfs2-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5; reiserfs-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5; kernel-default as component of SUSE Linux Enterprise Micro 5.5; kernel-macros as component of SUSE Linux Enterprise Micro 5.5; kernel-source as component of SUSE Linux Enterprise Micro 5.5; cluster-md-kmp-default as component of SUSE Linux Enterprise Server 15 SP5-LTSS; dlm-kmp-default as component of SUSE Linux Enterprise Server 15 SP5-LTSS; gfs2-kmp-default as component of SUSE Linux Enterprise Server 15 SP5-LTSS; kernel-default as component of SUSE Linux Enterprise Server 15 SP5-LTSS; kernel-default-devel as component of SUSE Linux Enterprise Server 15 SP5-LTSS; kernel-devel as component of SUSE Linux Enterprise Server 15 SP5-LTSS; kernel-macros as component of SUSE Linux Enterprise Server 15 SP5-LTSS; kernel-source as component of SUSE Linux Enterprise Server 15 SP5-LTSS; and 37 more · Fixed: cluster-md-kmp-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; dlm-kmp-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; gfs2-kmp-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-64kb-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-64kb-devel-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-default-base-5.14.21-150500.55.189.1.150500.6.87.4 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-default-devel-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-devel-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-docs-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-macros-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-obs-build-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-source-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-syms-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; ocfs2-kmp-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; cluster-md-kmp-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; dlm-kmp-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; gfs2-kmp-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-64kb-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-64kb-devel-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-default-base-5.14.21-150500.55.189.1.150500.6.87.4 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-default-devel-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-devel-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-docs-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-macros-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-obs-build-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-source-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-syms-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; ocfs2-kmp-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; and 35 more
    SUSE Product Security Team ↗
  2. Affected versionsThe structured affected or fixed version information changed.
    Before
    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; kernel-macros as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-source as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; ocfs2-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; cluster-md-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5; dlm-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5; gfs2-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5; kernel-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5; kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP5; kernel-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP5; kernel-macros as component of SUSE Linux Enterprise High Performance Computing 15 SP5; kernel-source as component of SUSE Linux Enterprise High Performance Computing 15 SP5; ocfs2-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5; reiserfs-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5; kernel-default as component of SUSE Linux Enterprise Micro 5.5; kernel-devel-rt as component of SUSE Linux Enterprise Micro 5.5; kernel-macros as component of SUSE Linux Enterprise Micro 5.5; kernel-source as component of SUSE Linux Enterprise Micro 5.5; kernel-source-rt as component of SUSE Linux Enterprise Micro 5.5; cluster-md-kmp-default as component of SUSE Linux Enterprise Server 15 SP5-LTSS; dlm-kmp-default as component of SUSE Linux Enterprise Server 15 SP5-LTSS; gfs2-kmp-default as component of SUSE Linux Enterprise Server 15 SP5-LTSS; kernel-default as component of SUSE Linux Enterprise Server 15 SP5-LTSS; kernel-default-devel as component of SUSE Linux Enterprise Server 15 SP5-LTSS; kernel-devel as component of SUSE Linux Enterprise Server 15 SP5-LTSS; and 69 more · Fixed: cluster-md-kmp-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; dlm-kmp-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; gfs2-kmp-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-64kb-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-64kb-devel-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-default-base-5.14.21-150500.55.189.1.150500.6.87.4 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-default-devel-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-devel-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-docs-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-macros-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-obs-build-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-source-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-syms-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; ocfs2-kmp-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; cluster-md-kmp-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; dlm-kmp-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; gfs2-kmp-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-64kb-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-64kb-devel-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-default-base-5.14.21-150500.55.189.1.150500.6.87.4 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-default-devel-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-devel-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-docs-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-macros-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-obs-build-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-source-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-syms-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; ocfs2-kmp-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; and 69 more
    After
    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; kernel-macros as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-source as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; ocfs2-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; cluster-md-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5; dlm-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5; gfs2-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5; kernel-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5; kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP5; kernel-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP5; kernel-macros as component of SUSE Linux Enterprise High Performance Computing 15 SP5; kernel-source as component of SUSE Linux Enterprise High Performance Computing 15 SP5; ocfs2-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5; reiserfs-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP5; kernel-default as component of SUSE Linux Enterprise Micro 5.5; kernel-devel-rt as component of SUSE Linux Enterprise Micro 5.5; kernel-macros as component of SUSE Linux Enterprise Micro 5.5; kernel-source as component of SUSE Linux Enterprise Micro 5.5; kernel-source-rt as component of SUSE Linux Enterprise Micro 5.5; cluster-md-kmp-default as component of SUSE Linux Enterprise Server 15 SP5-LTSS; dlm-kmp-default as component of SUSE Linux Enterprise Server 15 SP5-LTSS; gfs2-kmp-default as component of SUSE Linux Enterprise Server 15 SP5-LTSS; kernel-default as component of SUSE Linux Enterprise Server 15 SP5-LTSS; kernel-default-devel as component of SUSE Linux Enterprise Server 15 SP5-LTSS; kernel-devel as component of SUSE Linux Enterprise Server 15 SP5-LTSS; and 69 more · Fixed: cluster-md-kmp-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; dlm-kmp-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; gfs2-kmp-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-64kb-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-64kb-devel-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-default-base-5.14.21-150500.55.189.1.150500.6.87.4 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-default-devel-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-devel-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-docs-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-macros-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-obs-build-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-source-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; kernel-syms-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; ocfs2-kmp-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS; cluster-md-kmp-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; dlm-kmp-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; gfs2-kmp-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-64kb-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-64kb-devel-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-default-base-5.14.21-150500.55.189.1.150500.6.87.4 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-default-devel-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-devel-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-docs-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-macros-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-obs-build-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-source-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; kernel-syms-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; ocfs2-kmp-default-5.14.21-150500.55.189.1 as component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS; and 66 more
    SUSE Product Security Team ↗
  3. Vendor guidanceAuthoritative vendor guidance changed: added remediation: git.kernel.org/de5fce46637de05bef56ec08528127676eb6fc9b; removed remediation: git.kernel.org/3cf4fd5316f449811d8baf1bc6978ef5a7b743a9.
    Before
    remediation: git.kernel.org/3cf4fd5316f449811d8baf1bc6978ef5a7b743a9
    After
    remediation: git.kernel.org/de5fce46637de05bef56ec08528127676eb6fc9b
    CNA ↗
  4. Affected versionsThe structured affected or fixed version information changed.
    Before
    f1b4e32aca0811aa011c76e5d6cf2fa19224b386 < 3cf4fd5316f449811d8baf1bc6978ef5a7b743a9; f1b4e32aca0811aa011c76e5d6cf2fa19224b386 < 4177762f70646ac48a2af382e45a795cbd295198; f1b4e32aca0811aa011c76e5d6cf2fa19224b386 < 6fd08e8d826c3aa4cc7021f5f9cdbb7fa7441d3f; f1b4e32aca0811aa011c76e5d6cf2fa19224b386 < cd830e0bc25ee2d38cbfbdbb3cd77c5f53b2b6d5; f1b4e32aca0811aa011c76e5d6cf2fa19224b386 < ce2d4b121fb7545e1ed588e860c8e5fd5ad45224; f1b4e32aca0811aa011c76e5d6cf2fa19224b386 < 68973f9db76144825e4f35dfdc80fb8279eb2d57; fbac09a3b8890003c0c55294c00709f3ae5501bb; 5b48f5711f1c630841ab78dcc061de902f0e37bf · Fixed: < 5.19; 6.1.178 ≤ 6.1.*; 6.6.145 ≤ 6.6.*; 6.12.97 ≤ 6.12.*; 6.18.40 ≤ 6.18.*; 7.1.5 ≤ 7.1.*; 7.2 ≤ *
    After
    85cd41070df992d3c0dfd828866fdd243d3b774a < de5fce46637de05bef56ec08528127676eb6fc9b; f34f2a18e47b73e48f90a757e1f4aaa8c7d665a1 < 036a8c320ca11bc912e8027adcfad14b326f067e; f1b4e32aca0811aa011c76e5d6cf2fa19224b386 < 3cf4fd5316f449811d8baf1bc6978ef5a7b743a9; f1b4e32aca0811aa011c76e5d6cf2fa19224b386 < 4177762f70646ac48a2af382e45a795cbd295198; f1b4e32aca0811aa011c76e5d6cf2fa19224b386 < 6fd08e8d826c3aa4cc7021f5f9cdbb7fa7441d3f; f1b4e32aca0811aa011c76e5d6cf2fa19224b386 < cd830e0bc25ee2d38cbfbdbb3cd77c5f53b2b6d5; f1b4e32aca0811aa011c76e5d6cf2fa19224b386 < ce2d4b121fb7545e1ed588e860c8e5fd5ad45224; f1b4e32aca0811aa011c76e5d6cf2fa19224b386 < 68973f9db76144825e4f35dfdc80fb8279eb2d57 · Fixed: < 5.19; 5.10.265 ≤ 5.10.*; 5.15.216 ≤ 5.15.*; 6.1.178 ≤ 6.1.*; 6.6.145 ≤ 6.6.*; 6.12.97 ≤ 6.12.*; 6.18.40 ≤ 6.18.*; 7.1.5 ≤ 7.1.*
    CNA ↗
  5. Affected versionsThe structured affected or fixed version information changed.
    Before
    f1b4e32aca0811aa011c76e5d6cf2fa19224b386 < 3cf4fd5316f449811d8baf1bc6978ef5a7b743a9; f1b4e32aca0811aa011c76e5d6cf2fa19224b386 < 4177762f70646ac48a2af382e45a795cbd295198; f1b4e32aca0811aa011c76e5d6cf2fa19224b386 < 6fd08e8d826c3aa4cc7021f5f9cdbb7fa7441d3f; f1b4e32aca0811aa011c76e5d6cf2fa19224b386 < cd830e0bc25ee2d38cbfbdbb3cd77c5f53b2b6d5; f1b4e32aca0811aa011c76e5d6cf2fa19224b386 < ce2d4b121fb7545e1ed588e860c8e5fd5ad45224; f1b4e32aca0811aa011c76e5d6cf2fa19224b386 < 68973f9db76144825e4f35dfdc80fb8279eb2d57; fbac09a3b8890003c0c55294c00709f3ae5501bb; 5b48f5711f1c630841ab78dcc061de902f0e37bf · Fixed: < 5.19; 6.1.178 ≤ 6.1.*; 6.6.145 ≤ 6.6.*; 6.12.97 ≤ 6.12.*; 6.18.40 ≤ 6.18.*; 7.1.5 ≤ 7.1.*; 7.2-rc4 ≤ *
    After
    f1b4e32aca0811aa011c76e5d6cf2fa19224b386 < 3cf4fd5316f449811d8baf1bc6978ef5a7b743a9; f1b4e32aca0811aa011c76e5d6cf2fa19224b386 < 4177762f70646ac48a2af382e45a795cbd295198; f1b4e32aca0811aa011c76e5d6cf2fa19224b386 < 6fd08e8d826c3aa4cc7021f5f9cdbb7fa7441d3f; f1b4e32aca0811aa011c76e5d6cf2fa19224b386 < cd830e0bc25ee2d38cbfbdbb3cd77c5f53b2b6d5; f1b4e32aca0811aa011c76e5d6cf2fa19224b386 < ce2d4b121fb7545e1ed588e860c8e5fd5ad45224; f1b4e32aca0811aa011c76e5d6cf2fa19224b386 < 68973f9db76144825e4f35dfdc80fb8279eb2d57; fbac09a3b8890003c0c55294c00709f3ae5501bb; 5b48f5711f1c630841ab78dcc061de902f0e37bf · Fixed: < 5.19; 6.1.178 ≤ 6.1.*; 6.6.145 ≤ 6.6.*; 6.12.97 ≤ 6.12.*; 6.18.40 ≤ 6.18.*; 7.1.5 ≤ 7.1.*; 7.2 ≤ *
    CNA ↗
  6. SeveritySeverity changed from Unknown to High.
    Before
    Unknown
    After
    High
    CNA ↗
  7. CVSS scoreCVSS score changed from not recorded to 7.8 (CVSS 3.1 · CNA · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
    Before
    not recorded
    After
    7.8 (CVSS 3.1 · CNA · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
    CNA ↗
  8. Catalogue recordCVE added to the BlackTree catalogue.
    CNA ↗
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-2026-58881↗Vendor CSAF · SUSE Product Security Team↗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-2026-72123 · cve.blacktree.nl