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Full vulnerability report · 2026
CVE-2026-53167High confidence

fuse: limit FUSE_NOTIFY_RETRIEVE to uptodate folios

Linux · Linux

5.5MediumCVSS 3.1
Recommended action
Scheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
Distribution package intelligence

Ubuntu vendor package status

Canonical’s release and source-package findings are shown separately from local repository availability.

20 package states
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.

Ubuntu releaseSource packageVendor stateFixed versionEvidence
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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 2026
Optional official sources

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

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

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-2026-39258

No EUVD known-exploited evidence

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

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionScheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
01

What, why and how

In the Linux kernel, the following vulnerability has been resolved: fuse: limit FUSE_NOTIFY_RETRIEVE to uptodate folios FUSE_NOTIFY_RETRIEVE must be limited to uptodate folios; !uptodate folios can contain uninitialized data. Since FUSE_NOTIFY_RETRIEVE is intended to only return data that is already in the page cache and not wait for data from the FUSE daemon, treat !uptodate folios as if they weren't present. This only has security impact on systems that don't enable automatic zero-initialization of all page allocations via CONFIG_INIT_ON_ALLOC_DEFAULT_ON or init_on_alloc=1.

What

In the Linux kernel, the following vulnerability has been resolved: fuse: limit FUSE_NOTIFY_RETRIEVE to uptodate folios FUSE_NOTIFY_RETRIEVE must be limited to uptodate folios; !uptodate folios can contain uninitialized data. Since FUSE_NOTIFY_RETRIEVE is intended to only return data that is already in the page cache and not wait for data from the FUSE daemon, treat !uptodate folios as if they weren't present. This only has security impact on systems that don't enable automatic zero-initialization of all page allocations via CONFIG_INIT_ON_ALLOC_DEFAULT_ON or init_on_alloc=1.

Why

The product uses or accesses a resource that has not been initialized.

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: fuse: limit FUSE_NOTIFY_RETRIEVE to uptodate folios FUSE_NOTIFY_RETRIEVE must be limited to uptodate folios; !uptodate folios can contain uninitialized data. Since FUSE_NOTIFY_RETRIEVE is intended to only return data that is already in the page cache and not wait for data from the FUSE daemon, treat !uptodate folios as if they weren't present. This only has security impact on systems that don't enable automatic zero-initialization of all page allocations via CONFIG_INIT_ON_ALLOC_DEFAULT_ON or init_on_alloc=1.

Why

The product uses or accesses a resource that has not been initialized.

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 → Use of Uninitialized Resource → 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-908

CWE-908: Use of Uninitialized Resource. The product uses or accesses a resource that has not been initialized.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.
CWE-908
A

Official authority intelligence

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

BSI · German · WID-SEC-2026-2077Linux Kernel: Mehrere Schwachstellen

Ein entfernter Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um Sicherheitsvorkehrungen zu umgehen, einen Denial-of-Service-Zustand herbeizuführen und weitere, nicht näher spezifizierte Auswirkungen zu erzielen.

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

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

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

d?id=CVE-2026-53157 Référence CVE CVE-2026-53158 https://www.cve.org/CVERecord?id=CVE-2026-53158 Référence CVE CVE-2026-53159 https://www.cve.org/CVERecord?id=CVE-2026-53159 Référence CVE CVE-2026-53160 https://www.cve.org/CVERecord?id=CVE-2026-53160 Référence CVE CVE-2026-53161 https://www.cve.org/CVERecord?id=CVE-2026-53161 Référence CVE CVE-2026-53162 https://www.cve.org/CVERecord?id=CVE-2026-53162 Référence CVE CVE-2026-53163 https://www.cve.org/CVERecord?id=CVE-2026-53163 Référence CVE CVE-2026-53164 https://www.cve.org/CVERecord?id=CVE-2026-53164 Référence CVE CVE-2026-53165 https://www.cve.org/CVERecord?id=CVE-2026-53165 Référence CVE CVE-2026-53167 https://www.cve.org/CVERecord?id=CVE-2026-53167 Référence CVE CVE-2026-53168 https://www.cve.org/CVERecord?id=CVE-2026-53168 Référence CVE CVE-2026-53169 https://www.cve.org/CVERecord?id=CVE-2026-53169 Référence CVE CVE-2026-53170 https://www.cve.org/CVERecord?id=CVE-2026-53170 Référence CVE CVE-2026-53171 https://www.cve.org/CVERecord?id=CVE-2026-53171 Référence CVE CVE-2026-53172 https://www.cve.org/CVERecord?id=CVE-2026-53172 Référence CVE CVE-2026-53173 https://www.cve.org/CVERecord?id=CVE-2026-53173 Référence CVE CVE-2026-53174 https://www.cve.org/CVERecord?id=CVE-2026-53174 Référence CVE CVE-2026-53175 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1029Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-53080 Référence CVE CVE-2026-53093 https://www.cve.org/CVERecord?id=CVE-2026-53093 Référence CVE CVE-2026-53107 https://www.cve.org/CVERecord?id=CVE-2026-53107 Référence CVE CVE-2026-53129 https://www.cve.org/CVERecord?id=CVE-2026-53129 Référence CVE CVE-2026-53131 https://www.cve.org/CVERecord?id=CVE-2026-53131 Référence CVE CVE-2026-53134 https://www.cve.org/CVERecord?id=CVE-2026-53134 Référence CVE CVE-2026-53146 https://www.cve.org/CVERecord?id=CVE-2026-53146 Référence CVE CVE-2026-53147 https://www.cve.org/CVERecord?id=CVE-2026-53147 Référence CVE CVE-2026-53149 https://www.cve.org/CVERecord?id=CVE-2026-53149 Référence CVE CVE-2026-53167 https://www.cve.org/CVERecord?id=CVE-2026-53167 Référence CVE CVE-2026-53176 https://www.cve.org/CVERecord?id=CVE-2026-53176 Référence CVE CVE-2026-53177 https://www.cve.org/CVERecord?id=CVE-2026-53177 Référence CVE CVE-2026-53181 https://www.cve.org/CVERecord?id=CVE-2026-53181 Référence CVE CVE-2026-53186 https://www.cve.org/CVERecord?id=CVE-2026-53186 Référence CVE CVE-2026-53196 https://www.cve.org/CVERecord?id=CVE-2026-53196 Référence CVE CVE-2026-53208 https://www.cve.org/CVERecord?id=CVE-2026-53208 Référence CVE CVE-2026-53213 https://www.cve.org/CVERecord?id=CVE-2026-53213 Référence CVE CVE-2026-53218 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-2026-46116 Référence CVE CVE-2026-46135 https://www.cve.org/CVERecord?id=CVE-2026-46135 Référence CVE CVE-2026-46252 https://www.cve.org/CVERecord?id=CVE-2026-46252 Référence CVE CVE-2026-46331 https://www.cve.org/CVERecord?id=CVE-2026-46331 Référence CVE CVE-2026-52942 https://www.cve.org/CVERecord?id=CVE-2026-52942 Référence CVE CVE-2026-53138 https://www.cve.org/CVERecord?id=CVE-2026-53138 Référence CVE CVE-2026-53157 https://www.cve.org/CVERecord?id=CVE-2026-53157 Référence CVE CVE-2026-53158 https://www.cve.org/CVERecord?id=CVE-2026-53158 Référence CVE CVE-2026-53159 https://www.cve.org/CVERecord?id=CVE-2026-53159 Référence CVE CVE-2026-53167 https://www.cve.org/CVERecord?id=CVE-2026-53167 Référence CVE CVE-2026-53177 https://www.cve.org/CVERecord?id=CVE-2026-53177 Référence CVE CVE-2026-53325 https://www.cve.org/CVERecord?id=CVE-2026-53325 Référence CVE CVE-2026-53329 https://www.cve.org/CVERecord?id=CVE-2026-53329 Référence CVE CVE-2026-53332 https://www.cve.org/CVERecord?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=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0957Multiples vulnérabilités dans le noyau Linux de Debian LTS

d?id=CVE-2026-23302 Référence CVE CVE-2026-31451 https://www.cve.org/CVERecord?id=CVE-2026-31451 Référence CVE CVE-2026-46252 https://www.cve.org/CVERecord?id=CVE-2026-46252 Référence CVE CVE-2026-52928 https://www.cve.org/CVERecord?id=CVE-2026-52928 Référence CVE CVE-2026-53138 https://www.cve.org/CVERecord?id=CVE-2026-53138 Référence CVE CVE-2026-53139 https://www.cve.org/CVERecord?id=CVE-2026-53139 Référence CVE CVE-2026-53157 https://www.cve.org/CVERecord?id=CVE-2026-53157 Référence CVE CVE-2026-53158 https://www.cve.org/CVERecord?id=CVE-2026-53158 Référence CVE CVE-2026-53163 https://www.cve.org/CVERecord?id=CVE-2026-53163 Référence CVE CVE-2026-53167 https://www.cve.org/CVERecord?id=CVE-2026-53167 Référence CVE CVE-2026-53325 https://www.cve.org/CVERecord?id=CVE-2026-53325 Référence CVE CVE-2026-53327 https://www.cve.org/CVERecord?id=CVE-2026-53327 Référence CVE CVE-2026-53359 https://www.cve.org/CVERecord?id=CVE-2026-53359 Référence CVE CVE-2026-53362 https://www.cve.org/CVERecord?id=CVE-2026-53362 Référence CVE CVE-2026-53366 https://www.cve.org/CVERecord?id=CVE-2026-53366 Référence CVE CVE-2026-53381 https://www.cve.org/CVERecord?id=CVE-2026-53381 Référence CVE CVE-2026-53382 https://www.cve.org/CVERecord?id=CVE-2026-53382 Référence CVE CVE-2026-53383 https://www.cve.org/CVERecord?id=

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

d?id=CVE-2026-53078 Référence CVE CVE-2026-53081 https://www.cve.org/CVERecord?id=CVE-2026-53081 Référence CVE CVE-2026-53086 https://www.cve.org/CVERecord?id=CVE-2026-53086 Référence CVE CVE-2026-53090 https://www.cve.org/CVERecord?id=CVE-2026-53090 Référence CVE CVE-2026-53103 https://www.cve.org/CVERecord?id=CVE-2026-53103 Référence CVE CVE-2026-53122 https://www.cve.org/CVERecord?id=CVE-2026-53122 Référence CVE CVE-2026-53133 https://www.cve.org/CVERecord?id=CVE-2026-53133 Référence CVE CVE-2026-53139 https://www.cve.org/CVERecord?id=CVE-2026-53139 Référence CVE CVE-2026-53156 https://www.cve.org/CVERecord?id=CVE-2026-53156 Référence CVE CVE-2026-53167 https://www.cve.org/CVERecord?id=CVE-2026-53167 Référence CVE CVE-2026-53168 https://www.cve.org/CVERecord?id=CVE-2026-53168 Référence CVE CVE-2026-53176 https://www.cve.org/CVERecord?id=CVE-2026-53176 Référence CVE CVE-2026-53178 https://www.cve.org/CVERecord?id=CVE-2026-53178 Référence CVE CVE-2026-53181 https://www.cve.org/CVERecord?id=CVE-2026-53181 Référence CVE CVE-2026-53194 https://www.cve.org/CVERecord?id=CVE-2026-53194 Référence CVE CVE-2026-53196 https://www.cve.org/CVERecord?id=CVE-2026-53196 Référence CVE CVE-2026-53215 https://www.cve.org/CVERecord?id=CVE-2026-53215 Référence CVE CVE-2026-53216 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0929Multiples vulnérabilités dans le noyau Linux de Debian LTS

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

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

d?id=CVE-2026-53147 Référence CVE CVE-2026-53148 https://www.cve.org/CVERecord?id=CVE-2026-53148 Référence CVE CVE-2026-53149 https://www.cve.org/CVERecord?id=CVE-2026-53149 Référence CVE CVE-2026-53150 https://www.cve.org/CVERecord?id=CVE-2026-53150 Référence CVE CVE-2026-53156 https://www.cve.org/CVERecord?id=CVE-2026-53156 Référence CVE CVE-2026-53158 https://www.cve.org/CVERecord?id=CVE-2026-53158 Référence CVE CVE-2026-53159 https://www.cve.org/CVERecord?id=CVE-2026-53159 Référence CVE CVE-2026-53160 https://www.cve.org/CVERecord?id=CVE-2026-53160 Référence CVE CVE-2026-53161 https://www.cve.org/CVERecord?id=CVE-2026-53161 Référence CVE CVE-2026-53167 https://www.cve.org/CVERecord?id=CVE-2026-53167 Référence CVE CVE-2026-53168 https://www.cve.org/CVERecord?id=CVE-2026-53168 Référence CVE CVE-2026-53176 https://www.cve.org/CVERecord?id=CVE-2026-53176 Référence CVE CVE-2026-53178 https://www.cve.org/CVERecord?id=CVE-2026-53178 Référence CVE CVE-2026-53181 https://www.cve.org/CVERecord?id=CVE-2026-53181 Référence CVE CVE-2026-53182 https://www.cve.org/CVERecord?id=CVE-2026-53182 Référence CVE CVE-2026-53186 https://www.cve.org/CVERecord?id=CVE-2026-53186 Référence CVE CVE-2026-53190 https://www.cve.org/CVERecord?id=CVE-2026-53190 Référence CVE CVE-2026-53192 https://www.cve.org/CVERecord?id=

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

d?id=CVE-2026-53148 Référence CVE CVE-2026-53149 https://www.cve.org/CVERecord?id=CVE-2026-53149 Référence CVE CVE-2026-53150 https://www.cve.org/CVERecord?id=CVE-2026-53150 Référence CVE CVE-2026-53151 https://www.cve.org/CVERecord?id=CVE-2026-53151 Référence CVE CVE-2026-53157 https://www.cve.org/CVERecord?id=CVE-2026-53157 Référence CVE CVE-2026-53159 https://www.cve.org/CVERecord?id=CVE-2026-53159 Référence CVE CVE-2026-53160 https://www.cve.org/CVERecord?id=CVE-2026-53160 Référence CVE CVE-2026-53161 https://www.cve.org/CVERecord?id=CVE-2026-53161 Référence CVE CVE-2026-53163 https://www.cve.org/CVERecord?id=CVE-2026-53163 Référence CVE CVE-2026-53167 https://www.cve.org/CVERecord?id=CVE-2026-53167 Référence CVE CVE-2026-53168 https://www.cve.org/CVERecord?id=CVE-2026-53168 Référence CVE CVE-2026-53176 https://www.cve.org/CVERecord?id=CVE-2026-53176 Référence CVE CVE-2026-53177 https://www.cve.org/CVERecord?id=CVE-2026-53177 Référence CVE CVE-2026-53179 https://www.cve.org/CVERecord?id=CVE-2026-53179 Référence CVE CVE-2026-53181 https://www.cve.org/CVERecord?id=CVE-2026-53181 Référence CVE CVE-2026-53182 https://www.cve.org/CVERecord?id=CVE-2026-53182 Référence CVE CVE-2026-53183 https://www.cve.org/CVERecord?id=CVE-2026-53183 Référence CVE CVE-2026-53184 https://www.cve.org/CVERecord?id=

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-022618LinuxのLinux Kernelにおける初期化されていないリソースの使用に関する脆弱性

Linuxカーネルにおいて、以下の脆弱性が修正されました。fuse: FUSE_NOTIFY_RETRIEVEをuptodateなフォリオに制限する。FUSE_NOTIFY_RETRIEVEはuptodateなフォリオに限定する必要があります。uptodateでないフォリオには未初期化のデータが含まれている可能性があるためです。FUSE_NOTIFY_RETRIEVEはページキャッシュ内にすでに存在するデータのみを返し、FUSEデーモンからのデータを待機しないことを目的としているため、uptodateでないフォリオは存在しないものとして扱います。この修正は、CONFIG_INIT_ON_ALLOC_DEFAULT_ONやinit_on_alloc=1による自動的なページ割り当てのゼロ初期化を有効にしていないシステムにのみセキュリティ上の影響があります。

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
Linux: 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a < feafe8ccb1584254f59fbd4946d6ca7ef1e3e99c, 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a < 651801d75ad0897dbd331b3cc6a4da3e78f60d42, 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a < 4e14f29473eda18fb2af082dd2fd4c12139862cd, 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a < 8bef2f840b43e0879478fe3aaa9ff2f0b80798a5, 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a < 68a9282d5ea5b8780d59122505ad633e6daede90, 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a < 56763afa013444a9d84ca1b74e4b7130942177ba, 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a < 1fb8735a3a4d894f8c1f90b741a3ab1d3817f9bd, 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a < 4e3d1b2c48ca6c55f1e9ca7f8dccc76f120f276c, 2.6.36
Fixed
Linux: < 2.6.36, 5.10.260 ≤ 5.10.*, 5.15.211 ≤ 5.15.*, 6.1.177 ≤ 6.1.*, 6.6.144 ≤ 6.6.*, 6.12.95 ≤ 6.12.*, 6.18.36 ≤ 6.18.*, 7.0.13 ≤ 7.0.*, 7.1 ≤ *
Action
Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 25 Jun 2026 · Last source change 30 Jul 2026, 12:57 UTC · CWE-908 · Use of Uninitialized Resource

CVE recordCVE.org · 5.2
CVSS sourceNIST NVD
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2026-39258
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceNIST NVD
NVD statusNVD modified after enrichment

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

Material change intelligence

What changed after publication

View recent updates ↗

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

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
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-2026-53167 · cve.blacktree.nl