BlackTreeCVE Intelligence
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Full vulnerability report · 2026
CVE-2026-53400High confidence

i2c: core: fix adapter registration race

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 25 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 8 Sep 2026

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • Exploitation requires an existing local or physical foothold with privileges.
  • EPSS is 0.10% 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 25 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.6.12.95-1Debian 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.7.1.3-1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian sidsid · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.7.1.3-1Debian 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-2026-53400 · CSAF 2.0 · revision 10 · interimSUSE Product Security TeamCVE-2026-53400
200 known affected

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

  • kernel-default as component of SUSE Linux Enterprise Desktop 15 SP7
  • kernel-default-devel as component of SUSE Linux Enterprise Desktop 15 SP7
  • kernel-default-extra as component of SUSE Linux Enterprise Desktop 15 SP7
  • kernel-devel as component of SUSE Linux Enterprise Desktop 15 SP7
  • kernel-macros as component of SUSE Linux Enterprise Desktop 15 SP7
  • kernel-source as component of SUSE Linux Enterprise Desktop 15 SP7
  • cluster-md-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
  • dlm-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
  • gfs2-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
  • kernel-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
  • kernel-source as component of SUSE Linux Enterprise High Availability Extension 15 SP7
  • ocfs2-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
Summary
In the Linux kernel, the following vulnerability has been resolved: i2c: core: fix adapter registration race Adapters can be looked up based on their id using i2c_get_adapter() which takes a reference to the embedded struct device. Make sure that the adapter (including its struct device) has been initialised before adding it to the IDR to avoid accessing uninitialised data which could, for example, lead to NULL-pointer dereferences or use-after-free. Note that the i2c-dev chardev, which is registered from a bus notifier, currently uses i2c_get_adapter() so the adapter needs to be added to the IDR before registration.
Remediation
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
SSA-019113 · CSAF 2.0 · revision 2 · interimSiemens ProductCERTSSA-019113: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP V3.1.6
5 known affected

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

  • SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) >= V3.1.6
  • SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) >= V3.1.6
  • SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) >= V3.1.6
  • SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) >= V3.1.6
  • SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) >= V3.1.6
Summary
In the Linux kernel, the following vulnerability has been resolved: i2c: core: fix adapter registration race Adapters can be looked up based on their id using i2c_get_adapter() which takes a reference to the embedded struct device. Make sure that the adapter (including its struct device) has been initialised before adding it to the IDR to avoid accessing uninitialised data which could, for example, lead to NULL-pointer dereferences or use-after-free. Note that the i2c-dev chardev, which is registered from a bus notifier, currently uses i2c_get_adapter() so the adapter needs to be added to the IDR before registration.
Remediation
Limit access to the interactive shell of the additional GNU/Linux subssytem to trusted personnel only.
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-2026-45455

No EUVD known-exploited evidence

In the Linux kernel, the following vulnerability has been resolved: i2c: core: fix adapter registration race Adapters can be looked up based on their id using i2c_get_adapter() which takes a reference to the embedded struct device. Make sure that the adapter (including its struct device) has been initialised before adding it to the IDR to avoid accessing uninitialised data which could, for example, lead to NULL-pointer dereferences or use-after-free. Note that the i2c-dev chardev, which is registered from a bus notifier, currently uses i2c_get_adapter() so the adapter needs to be added to the IDR before registration.

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 25 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: i2c: core: fix adapter registration race Adapters can be looked up based on their id using i2c_get_adapter() which takes a reference to the embedded struct device. Make sure that the adapter (including its struct device) has been initialised before adding it to the IDR to avoid accessing uninitialised data which could, for example, lead to NULL-pointer dereferences or use-after-free. Note that the i2c-dev chardev, which is registered from a bus notifier, currently uses i2c_get_adapter() so the adapter needs to be added to the IDR before registration.

What

In the Linux kernel, the following vulnerability has been resolved: i2c: core: fix adapter registration race Adapters can be looked up based on their id using i2c_get_adapter() which takes a reference to the embedded struct device. Make sure that the adapter (including its struct device) has been initialised before adding it to the IDR to avoid accessing uninitialised data which could, for example, lead to NULL-pointer dereferences or use-after-free. Note that the i2c-dev chardev, which is registered from a bus notifier, currently uses i2c_get_adapter() so the adapter needs to be added to the IDR before registration.

Why

The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

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: i2c: core: fix adapter registration race Adapters can be looked up based on their id using i2c_get_adapter() which takes a reference to the embedded struct device. Make sure that the adapter (including its struct device) has been initialised before adding it to the IDR to avoid accessing uninitialised data which could, for example, lead to NULL-pointer dereferences or use-after-free. Note that the i2c-dev chardev, which is registered from a bus notifier, currently uses i2c_get_adapter() so the adapter needs to be added to the IDR before registration.

Why

The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

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 → Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Local
Privileges required
Low: a basic authenticated account is required
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-362 ↗

CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition'). The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

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.
CWE-362
A

Official authority intelligence

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

ENISA EUVD · EUVD-2026-45455Official EUVD mapping

In the Linux kernel, the following vulnerability has been resolved: i2c: core: fix adapter registration race Adapters can be looked up based on their id using i2c_get_adapter() which takes a reference to the embedded struct device. Make sure that the adapter (including its struct device) has been initialised before adding it to the IDR to avoid accessing uninitialised data which could, for example, lead to NULL-pointer dereferences or use-after-free. Note that the i2c-dev chardev, which is registered from a bus notifier, currently uses i2c_get_adapter() so the adapter needs to be added to the IDR before registration.

Official EUVD record ↗
BSI · German · WID-SEC-2026-2403Linux Kernel: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff

Ein Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen, möglicherweise Sicherheitsmaßnahmen zu umgehen, einen Denial-of-Service-Zustand herbeizuführen oder vertrauliche Informationen offenzulegen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260722Security Bulletin 22 Jul 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 22 Jul 2026, published on 22 July 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

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

d?id=CVE-2026-53391 Référence CVE CVE-2026-53392 https://www.cve.org/CVERecord?id=CVE-2026-53392 Référence CVE CVE-2026-53393 https://www.cve.org/CVERecord?id=CVE-2026-53393 Référence CVE CVE-2026-53394 https://www.cve.org/CVERecord?id=CVE-2026-53394 Référence CVE CVE-2026-53395 https://www.cve.org/CVERecord?id=CVE-2026-53395 Référence CVE CVE-2026-53396 https://www.cve.org/CVERecord?id=CVE-2026-53396 Référence CVE CVE-2026-53397 https://www.cve.org/CVERecord?id=CVE-2026-53397 Référence CVE CVE-2026-53398 https://www.cve.org/CVERecord?id=CVE-2026-53398 Référence CVE CVE-2026-53399 https://www.cve.org/CVERecord?id=CVE-2026-53399 Référence CVE CVE-2026-53400 https://www.cve.org/CVERecord?id=CVE-2026-53400 Référence CVE CVE-2026-53401 https://www.cve.org/CVERecord?id=CVE-2026-53401 Référence CVE CVE-2026-53402 https://www.cve.org/CVERecord?id=CVE-2026-53402 Référence CVE CVE-2026-53403 https://www.cve.org/CVERecord?id=CVE-2026-53403 Référence CVE CVE-2026-63794 https://www.cve.org/CVERecord?id=CVE-2026-63794 Référence CVE CVE-2026-63795 https://www.cve.org/CVERecord?id=CVE-2026-63795 Référence CVE CVE-2026-63796 https://www.cve.org/CVERecord?id=CVE-2026-63796 Référence CVE CVE-2026-63797 https://www.cve.org/CVERecord?id=CVE-2026-63797 Référence CVE CVE-2026-63798 https://www.cve.org/CVERecord?id=

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

d?id=CVE-2026-53391 Référence CVE CVE-2026-53392 https://www.cve.org/CVERecord?id=CVE-2026-53392 Référence CVE CVE-2026-53393 https://www.cve.org/CVERecord?id=CVE-2026-53393 Référence CVE CVE-2026-53394 https://www.cve.org/CVERecord?id=CVE-2026-53394 Référence CVE CVE-2026-53395 https://www.cve.org/CVERecord?id=CVE-2026-53395 Référence CVE CVE-2026-53396 https://www.cve.org/CVERecord?id=CVE-2026-53396 Référence CVE CVE-2026-53397 https://www.cve.org/CVERecord?id=CVE-2026-53397 Référence CVE CVE-2026-53398 https://www.cve.org/CVERecord?id=CVE-2026-53398 Référence CVE CVE-2026-53399 https://www.cve.org/CVERecord?id=CVE-2026-53399 Référence CVE CVE-2026-53400 https://www.cve.org/CVERecord?id=CVE-2026-53400 Référence CVE CVE-2026-53401 https://www.cve.org/CVERecord?id=CVE-2026-53401 Référence CVE CVE-2026-53402 https://www.cve.org/CVERecord?id=CVE-2026-53402 Référence CVE CVE-2026-53403 https://www.cve.org/CVERecord?id=CVE-2026-53403 Référence CVE CVE-2026-63794 https://www.cve.org/CVERecord?id=CVE-2026-63794 Référence CVE CVE-2026-63795 https://www.cve.org/CVERecord?id=CVE-2026-63795 Référence CVE CVE-2026-63796 https://www.cve.org/CVERecord?id=CVE-2026-63796 Référence CVE CVE-2026-63797 https://www.cve.org/CVERecord?id=CVE-2026-63797 Référence CVE CVE-2026-63798 https://www.cve.org/CVERecord?id=

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

d?id=CVE-2026-53391 Référence CVE CVE-2026-53392 https://www.cve.org/CVERecord?id=CVE-2026-53392 Référence CVE CVE-2026-53393 https://www.cve.org/CVERecord?id=CVE-2026-53393 Référence CVE CVE-2026-53394 https://www.cve.org/CVERecord?id=CVE-2026-53394 Référence CVE CVE-2026-53395 https://www.cve.org/CVERecord?id=CVE-2026-53395 Référence CVE CVE-2026-53396 https://www.cve.org/CVERecord?id=CVE-2026-53396 Référence CVE CVE-2026-53397 https://www.cve.org/CVERecord?id=CVE-2026-53397 Référence CVE CVE-2026-53398 https://www.cve.org/CVERecord?id=CVE-2026-53398 Référence CVE CVE-2026-53399 https://www.cve.org/CVERecord?id=CVE-2026-53399 Référence CVE CVE-2026-53400 https://www.cve.org/CVERecord?id=CVE-2026-53400 Référence CVE CVE-2026-53401 https://www.cve.org/CVERecord?id=CVE-2026-53401 Référence CVE CVE-2026-53402 https://www.cve.org/CVERecord?id=CVE-2026-53402 Référence CVE CVE-2026-53403 https://www.cve.org/CVERecord?id=CVE-2026-53403 Référence CVE CVE-2026-63794 https://www.cve.org/CVERecord?id=CVE-2026-63794 Référence CVE CVE-2026-63795 https://www.cve.org/CVERecord?id=CVE-2026-63795 Référence CVE CVE-2026-63796 https://www.cve.org/CVERecord?id=CVE-2026-63796 Référence CVE CVE-2026-63797 https://www.cve.org/CVERecord?id=CVE-2026-63797 Référence CVE CVE-2026-63798 https://www.cve.org/CVERecord?id=

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

d?id=CVE-2026-53391 Référence CVE CVE-2026-53392 https://www.cve.org/CVERecord?id=CVE-2026-53392 Référence CVE CVE-2026-53393 https://www.cve.org/CVERecord?id=CVE-2026-53393 Référence CVE CVE-2026-53394 https://www.cve.org/CVERecord?id=CVE-2026-53394 Référence CVE CVE-2026-53395 https://www.cve.org/CVERecord?id=CVE-2026-53395 Référence CVE CVE-2026-53396 https://www.cve.org/CVERecord?id=CVE-2026-53396 Référence CVE CVE-2026-53397 https://www.cve.org/CVERecord?id=CVE-2026-53397 Référence CVE CVE-2026-53398 https://www.cve.org/CVERecord?id=CVE-2026-53398 Référence CVE CVE-2026-53399 https://www.cve.org/CVERecord?id=CVE-2026-53399 Référence CVE CVE-2026-53400 https://www.cve.org/CVERecord?id=CVE-2026-53400 Référence CVE CVE-2026-53401 https://www.cve.org/CVERecord?id=CVE-2026-53401 Référence CVE CVE-2026-53402 https://www.cve.org/CVERecord?id=CVE-2026-53402 Référence CVE CVE-2026-53403 https://www.cve.org/CVERecord?id=CVE-2026-53403 Référence CVE CVE-2026-63794 https://www.cve.org/CVERecord?id=CVE-2026-63794 Référence CVE CVE-2026-63795 https://www.cve.org/CVERecord?id=CVE-2026-63795 Référence CVE CVE-2026-63796 https://www.cve.org/CVERecord?id=CVE-2026-63796 Référence CVE CVE-2026-63797 https://www.cve.org/CVERecord?id=CVE-2026-63797 Référence CVE CVE-2026-63798 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-2026-53387 Référence CVE CVE-2026-53388 https://www.cve.org/CVERecord?id=CVE-2026-53388 Référence CVE CVE-2026-53391 https://www.cve.org/CVERecord?id=CVE-2026-53391 Référence CVE CVE-2026-53392 https://www.cve.org/CVERecord?id=CVE-2026-53392 Référence CVE CVE-2026-53393 https://www.cve.org/CVERecord?id=CVE-2026-53393 Référence CVE CVE-2026-53394 https://www.cve.org/CVERecord?id=CVE-2026-53394 Référence CVE CVE-2026-53397 https://www.cve.org/CVERecord?id=CVE-2026-53397 Référence CVE CVE-2026-53398 https://www.cve.org/CVERecord?id=CVE-2026-53398 Référence CVE CVE-2026-53399 https://www.cve.org/CVERecord?id=CVE-2026-53399 Référence CVE CVE-2026-53400 https://www.cve.org/CVERecord?id=CVE-2026-53400 Référence CVE CVE-2026-53402 https://www.cve.org/CVERecord?id=CVE-2026-53402 Référence CVE CVE-2026-53403 https://www.cve.org/CVERecord?id=CVE-2026-53403 Référence CVE CVE-2026-63794 https://www.cve.org/CVERecord?id=CVE-2026-63794 Référence CVE CVE-2026-63795 https://www.cve.org/CVERecord?id=CVE-2026-63795 Référence CVE CVE-2026-63802 https://www.cve.org/CVERecord?id=CVE-2026-63802 Référence CVE CVE-2026-63806 https://www.cve.org/CVERecord?id=CVE-2026-63806 Référence CVE CVE-2026-63807 https://www.cve.org/CVERecord?id=CVE-2026-63807 Référence CVE CVE-2026-63809 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1031Multiples vulnérabilités dans le noyau Linux de Debian LTS

d?id=CVE-2026-53005 Référence CVE CVE-2026-53027 https://www.cve.org/CVERecord?id=CVE-2026-53027 Référence CVE CVE-2026-53226 https://www.cve.org/CVERecord?id=CVE-2026-53226 Référence CVE CVE-2026-53260 https://www.cve.org/CVERecord?id=CVE-2026-53260 Référence CVE CVE-2026-53332 https://www.cve.org/CVERecord?id=CVE-2026-53332 Référence CVE CVE-2026-53365 https://www.cve.org/CVERecord?id=CVE-2026-53365 Référence CVE CVE-2026-53392 https://www.cve.org/CVERecord?id=CVE-2026-53392 Référence CVE CVE-2026-53393 https://www.cve.org/CVERecord?id=CVE-2026-53393 Référence CVE CVE-2026-53399 https://www.cve.org/CVERecord?id=CVE-2026-53399 Référence CVE CVE-2026-53400 https://www.cve.org/CVERecord?id=CVE-2026-53400 Référence CVE CVE-2026-53402 https://www.cve.org/CVERecord?id=CVE-2026-53402 Référence CVE CVE-2026-63797 https://www.cve.org/CVERecord?id=CVE-2026-63797 Référence CVE CVE-2026-63806 https://www.cve.org/CVERecord?id=CVE-2026-63806 Référence CVE CVE-2026-63810 https://www.cve.org/CVERecord?id=CVE-2026-63810 Référence CVE CVE-2026-63815 https://www.cve.org/CVERecord?id=CVE-2026-63815 Référence CVE CVE-2026-63816 https://www.cve.org/CVERecord?id=CVE-2026-63816 Référence CVE CVE-2026-63818 https://www.cve.org/CVERecord?id=CVE-2026-63818 Référence CVE CVE-2026-63829 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0982Multiples vulnérabilités dans le noyau Linux de Debian LTS

d?id=CVE-2026-53332 Référence CVE CVE-2026-53381 https://www.cve.org/CVERecord?id=CVE-2026-53381 Référence CVE CVE-2026-53382 https://www.cve.org/CVERecord?id=CVE-2026-53382 Référence CVE CVE-2026-53385 https://www.cve.org/CVERecord?id=CVE-2026-53385 Référence CVE CVE-2026-53392 https://www.cve.org/CVERecord?id=CVE-2026-53392 Référence CVE CVE-2026-53393 https://www.cve.org/CVERecord?id=CVE-2026-53393 Référence CVE CVE-2026-53397 https://www.cve.org/CVERecord?id=CVE-2026-53397 Référence CVE CVE-2026-53398 https://www.cve.org/CVERecord?id=CVE-2026-53398 Référence CVE CVE-2026-53399 https://www.cve.org/CVERecord?id=CVE-2026-53399 Référence CVE CVE-2026-53400 https://www.cve.org/CVERecord?id=CVE-2026-53400 Référence CVE CVE-2026-53402 https://www.cve.org/CVERecord?id=CVE-2026-53402 Référence CVE CVE-2026-53403 https://www.cve.org/CVERecord?id=CVE-2026-53403 Référence CVE CVE-2026-63794 https://www.cve.org/CVERecord?id=CVE-2026-63794 Référence CVE CVE-2026-63796 https://www.cve.org/CVERecord?id=CVE-2026-63796 Référence CVE CVE-2026-63797 https://www.cve.org/CVERecord?id=CVE-2026-63797 Référence CVE CVE-2026-63798 https://www.cve.org/CVERecord?id=CVE-2026-63798 Référence CVE CVE-2026-63800 https://www.cve.org/CVERecord?id=CVE-2026-63800 Référence CVE CVE-2026-63801 https://www.cve.org/CVERecord?id=

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-025988LinuxのLinux Kernelにおける競合状態に関する脆弱性

Linuxカーネルにおいて、以下の脆弱性が修正されました。i2c: core: アダプター登録のレースコンディションを修正しました。i2c_get_adapter() を使ってアダプターはIDに基づいて検索されますが、これは埋め込まれた struct device への参照を取ります。アダプター（およびその struct device）がIDRに追加される前に必ず初期化されていることを確認しなければなりません。そうしないと、未初期化のデータにアクセスしてしまい、例えばNULLポインタ逆参照やuse-after-freeといった問題を引き起こす可能性があります。i2c-dev のキャラクタデバイスはバスノーティファイアから登録されており、現在 i2c_get_adapter() を使用しているため、登録の前に必ずアダプターをIDRに追加しなければなりません。

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix availability varies by product
Affected
Fixed
Linux: < 2.6.22, 5.10.261 ≤ 5.10.*, 5.15.212 ≤ 5.15.*, 6.1.178 ≤ 6.1.*, 6.6.145 ≤ 6.6.*, 6.12.95 ≤ 6.12.*, 6.18.38 ≤ 6.18.*, 7.1.3 ≤ 7.1.*, 7.2 ≤ *
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 19 Jul 2026 · Last source change 8 Sept 2026, 08:50 UTC · CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

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-2026-45455
Product sourceVendor CSAF · SUSE Product Security Team
Remediation sourceVendor CSAF · SUSE Product Security Team
CWE sourceNIST NVD
NVD statusNVD modified after enrichment

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

Material change intelligence

What changed after publication

View recent updates ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    kernel-default as component of SUSE Linux Enterprise Desktop 15 SP7; kernel-default-devel as component of SUSE Linux Enterprise Desktop 15 SP7; kernel-default-extra as component of SUSE Linux Enterprise Desktop 15 SP7; kernel-devel as component of SUSE Linux Enterprise Desktop 15 SP7; kernel-macros as component of SUSE Linux Enterprise Desktop 15 SP7; kernel-source as component of SUSE Linux Enterprise Desktop 15 SP7; cluster-md-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7; dlm-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7; gfs2-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7; kernel-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7; kernel-source as component of SUSE Linux Enterprise High Availability Extension 15 SP7; ocfs2-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7; kernel-default as component of SUSE Linux Enterprise High 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 168 more · Fixed: kernel-obs-build-6.12.0-160000.37.1 as component of SUSE Linux Micro Extras 6.2; kernel-syms-6.12.0-160000.37.1 as component of SUSE Linux Micro Extras 6.2
    After
    kernel-default as component of SUSE Linux Enterprise Desktop 15 SP7; kernel-default-devel as component of SUSE Linux Enterprise Desktop 15 SP7; kernel-default-extra as component of SUSE Linux Enterprise Desktop 15 SP7; kernel-devel as component of SUSE Linux Enterprise Desktop 15 SP7; kernel-macros as component of SUSE Linux Enterprise Desktop 15 SP7; kernel-source as component of SUSE Linux Enterprise Desktop 15 SP7; cluster-md-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7; dlm-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7; gfs2-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7; kernel-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7; kernel-source as component of SUSE Linux Enterprise High Availability Extension 15 SP7; ocfs2-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7; kernel-default as component of SUSE Linux Enterprise High 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 170 more
    SUSE Product Security Team ↗
  2. Affected versionsThe structured affected or fixed version information changed.
    Before
    6e13e641841833cc2aa5baefe89bb04bc388801b < 2e57c788e71f1763445f812eba4e0b4a2fbd0646; 6e13e641841833cc2aa5baefe89bb04bc388801b < a4365bc41baaf67f3a5aa8556d23544e6ec7480a; 6e13e641841833cc2aa5baefe89bb04bc388801b < 1febb174815bcae56d73587e99e8f87e02f0784d; 6e13e641841833cc2aa5baefe89bb04bc388801b < da9d8d9711f78deebc202d0cffcf577e45ee8621; 6e13e641841833cc2aa5baefe89bb04bc388801b < 78793c75dc6d0ff2e4d50ad617349b328a99054e; 6e13e641841833cc2aa5baefe89bb04bc388801b < 6a946038f2a5a8c29048c6af369d4e391448a5c5; 6e13e641841833cc2aa5baefe89bb04bc388801b < a4c8094bbf4c6fa68b17e3b16f6a0a1b7a14f3e0; 6e13e641841833cc2aa5baefe89bb04bc388801b < ba14d7cf2fe7284610a29854bdff22b2537d3ce6 · Fixed: < 2.6.22; 5.10.261 ≤ 5.10.*; 5.15.212 ≤ 5.15.*; 6.1.178 ≤ 6.1.*; 6.6.145 ≤ 6.6.*; 6.12.95 ≤ 6.12.*; 6.18.38 ≤ 6.18.*; 7.1.3 ≤ 7.1.*
    After
    Linux: 6e13e641841833cc2aa5baefe89bb04bc388801b < 2e57c788e71f1763445f812eba4e0b4a2fbd0646, 6e13e641841833cc2aa5baefe89bb04bc388801b < a4365bc41baaf67f3a5aa8556d23544e6ec7480a, 6e13e641841833cc2aa5baefe89bb04bc388801b < 1febb174815bcae56d73587e99e8f87e02f0784d, 6e13e641841833cc2aa5baefe89bb04bc388801b < da9d8d9711f78deebc202d0cffcf577e45ee8621, 6e13e641841833cc2aa5baefe89bb04bc388801b < 78793c75dc6d0ff2e4d50ad617349b328a99054e, 6e13e641841833cc2aa5baefe89bb04bc388801b < 6a946038f2a5a8c29048c6af369d4e391448a5c5, 6e13e641841833cc2aa5baefe89bb04bc388801b < a4c8094bbf4c6fa68b17e3b16f6a0a1b7a14f3e0, 6e13e641841833cc2aa5baefe89bb04bc388801b < ba14d7cf2fe7284610a29854bdff22b2537d3ce6, 2.6.22 · Fixed: Linux: < 2.6.22, 5.10.261 ≤ 5.10.*, 5.15.212 ≤ 5.15.*, 6.1.178 ≤ 6.1.*, 6.6.145 ≤ 6.6.*, 6.12.95 ≤ 6.12.*, 6.18.38 ≤ 6.18.*, 7.1.3 ≤ 7.1.*, 7.2 ≤ *
    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-2026-45455↗Vendor CSAF · SUSE Product Security Team↗CVE authority or vendor reference↗Patch or update reference↗Patch or update reference↗Patch or update reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2026-53400 · cve.blacktree.nl