BlackTreeIndependent security intelligence

Full vulnerability report · 2024

CVE-2024-35826High confidence

block: Fix page refcounts for unaligned buffers in __bio_release_pages()

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.

11 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 release	Source package	Vendor state	Fixed version	Evidence
Ubuntu 24.04 LTSnoble · standard archive	`linux`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-aws`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-azure`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-gcp`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-gke`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-ibm`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-lowlatency`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-oem-6.8`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-oracle`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-raspi`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-riscv`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical record ↗Source updated 11 Sept 2026

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-2024-35726

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

What, why and how

In the Linux kernel, the following vulnerability has been resolved: block: Fix page refcounts for unaligned buffers in __bio_release_pages() Fix an incorrect number of pages being released for buffers that do not start at the beginning of a page.

What

Why

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

How

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

What

Why

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

How

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: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.

Official authority intelligence

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

ENISA EUVD · EUVD-2024-35726Official EUVD mapping

0 linked advisory records.

Official EUVD record

BSI · German · WID-SEC-W-2025-1439Dell Secure Connect Gateway: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff

Ein Angreifer kann mehrere Schwachstellen in Dell Secure Connect Gateway ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.

Official advisory

BSI · German · WID-SEC-W-2024-1188Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Ein lokaler Angreifer kann mehrere Schwachstellen in Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuführen.

Official advisory

CERT-FR · French · CERTFR-2026-AVI-0326Multiples vulnérabilités dans les produits VMware

rd?id=CVE-2024-3220 Référence CVE CVE-2024-34064 https://www.cve.org/CVERecord?id=CVE-2024-34064 Référence CVE CVE-2024-35195 https://www.cve.org/CVERecord?id=CVE-2024-35195 Référence CVE CVE-2024-35784 https://www.cve.org/CVERecord?id=CVE-2024-35784 Référence CVE CVE-2024-35794 https://www.cve.org/CVERecord?id=CVE-2024-35794 Référence CVE CVE-2024-35799 https://www.cve.org/CVERecord?id=CVE-2024-35799 Référence CVE CVE-2024-35801 https://www.cve.org/CVERecord?id=CVE-2024-35801 Référence CVE CVE-2024-35803 https://www.cve.org/CVERecord?id=CVE-2024-35803 Référence CVE CVE-2024-35808 https://www.cve.org/CVERecord?id=CVE-2024-35808 Référence CVE CVE-2024-35826 https://www.cve.org/CVERecord?id=CVE-2024-35826 Référence CVE CVE-2024-35832 https://www.cve.org/CVERecord?id=CVE-2024-35832 Référence CVE CVE-2024-35839 https://www.cve.org/CVERecord?id=CVE-2024-35839 Référence CVE CVE-2024-35843 https://www.cve.org/CVERecord?id=CVE-2024-35843 Référence CVE CVE-2024-35862 https://www.cve.org/CVERecord?id=CVE-2024-35862 Référence CVE CVE-2024-35865 https://www.cve.org/CVERecord?id=CVE-2024-35865 Référence CVE CVE-2024-35868 https://www.cve.org/CVERecord?id=CVE-2024-35868 Référence CVE CVE-2024-35870 https://www.cve.org/CVERecord?id=CVE-2024-35870 Référence CVE CVE-2024-35875 https://www.cve.org/CVERecord?id=

Official advisory

CERT-FR · French · CERTFR-2026-AVI-0316Multiples vulnérabilités dans les produits VMware

d?id=CVE-2024-31884 Référence CVE CVE-2024-34064 https://www.cve.org/CVERecord?id=CVE-2024-34064 Référence CVE CVE-2024-35195 https://www.cve.org/CVERecord?id=CVE-2024-35195 Référence CVE CVE-2024-35784 https://www.cve.org/CVERecord?id=CVE-2024-35784 Référence CVE CVE-2024-35794 https://www.cve.org/CVERecord?id=CVE-2024-35794 Référence CVE CVE-2024-35799 https://www.cve.org/CVERecord?id=CVE-2024-35799 Référence CVE CVE-2024-35801 https://www.cve.org/CVERecord?id=CVE-2024-35801 Référence CVE CVE-2024-35803 https://www.cve.org/CVERecord?id=CVE-2024-35803 Référence CVE CVE-2024-35808 https://www.cve.org/CVERecord?id=CVE-2024-35808 Référence CVE CVE-2024-35826 https://www.cve.org/CVERecord?id=CVE-2024-35826 Référence CVE CVE-2024-35832 https://www.cve.org/CVERecord?id=CVE-2024-35832 Référence CVE CVE-2024-35839 https://www.cve.org/CVERecord?id=CVE-2024-35839 Référence CVE CVE-2024-35843 https://www.cve.org/CVERecord?id=CVE-2024-35843 Référence CVE CVE-2024-35862 https://www.cve.org/CVERecord?id=CVE-2024-35862 Référence CVE CVE-2024-35865 https://www.cve.org/CVERecord?id=CVE-2024-35865 Référence CVE CVE-2024-35868 https://www.cve.org/CVERecord?id=CVE-2024-35868 Référence CVE CVE-2024-35870 https://www.cve.org/CVERecord?id=CVE-2024-35870 Référence CVE CVE-2024-35875 https://www.cve.org/CVERecord?id=

Official advisory

CERT-FR · French · CERTFR-2025-AVI-0509Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2023-53140 Référence CVE CVE-2023-53142 https://www.cve.org/CVERecord?id=CVE-2023-53142 Référence CVE CVE-2023-53143 https://www.cve.org/CVERecord?id=CVE-2023-53143 Référence CVE CVE-2023-53145 https://www.cve.org/CVERecord?id=CVE-2023-53145 Référence CVE CVE-2024-26634 https://www.cve.org/CVERecord?id=CVE-2024-26634 Référence CVE CVE-2024-26873 https://www.cve.org/CVERecord?id=CVE-2024-26873 Référence CVE CVE-2024-27018 https://www.cve.org/CVERecord?id=CVE-2024-27018 Référence CVE CVE-2024-27415 https://www.cve.org/CVERecord?id=CVE-2024-27415 Référence CVE CVE-2024-28956 https://www.cve.org/CVERecord?id=CVE-2024-28956 Référence CVE CVE-2024-35826 https://www.cve.org/CVERecord?id=CVE-2024-35826 Référence CVE CVE-2024-35840 https://www.cve.org/CVERecord?id=CVE-2024-35840 Référence CVE CVE-2024-35910 https://www.cve.org/CVERecord?id=CVE-2024-35910 Référence CVE CVE-2024-38606 https://www.cve.org/CVERecord?id=CVE-2024-38606 Référence CVE CVE-2024-41005 https://www.cve.org/CVERecord?id=CVE-2024-41005 Référence CVE CVE-2024-41077 https://www.cve.org/CVERecord?id=CVE-2024-41077 Référence CVE CVE-2024-41149 https://www.cve.org/CVERecord?id=CVE-2024-41149 Référence CVE CVE-2024-42307 https://www.cve.org/CVERecord?id=CVE-2024-42307 Référence CVE CVE-2024-43820 https://www.cve.org/CVERecord?id=

Official advisory

CERT-FR · French · CERTFR-2025-AVI-0307Multiples vulnérabilités dans le noyau Linux de SUSE

ord?id=CVE-2023-53025 Référence CVE CVE-2023-53026 https://www.cve.org/CVERecord?id=CVE-2023-53026 Référence CVE CVE-2023-53028 https://www.cve.org/CVERecord?id=CVE-2023-53028 Référence CVE CVE-2023-53029 https://www.cve.org/CVERecord?id=CVE-2023-53029 Référence CVE CVE-2023-53030 https://www.cve.org/CVERecord?id=CVE-2023-53030 Référence CVE CVE-2023-53033 https://www.cve.org/CVERecord?id=CVE-2023-53033 Référence CVE CVE-2024-2201 https://www.cve.org/CVERecord?id=CVE-2024-2201 Référence CVE CVE-2024-26634 https://www.cve.org/CVERecord?id=CVE-2024-26634 Référence CVE CVE-2024-26873 https://www.cve.org/CVERecord?id=CVE-2024-26873 Référence CVE CVE-2024-35826 https://www.cve.org/CVERecord?id=CVE-2024-35826 Référence CVE CVE-2024-35910 https://www.cve.org/CVERecord?id=CVE-2024-35910 Référence CVE CVE-2024-38606 https://www.cve.org/CVERecord?id=CVE-2024-38606 Référence CVE CVE-2024-41005 https://www.cve.org/CVERecord?id=CVE-2024-41005 Référence CVE CVE-2024-41077 https://www.cve.org/CVERecord?id=CVE-2024-41077 Référence CVE CVE-2024-41092 https://www.cve.org/CVERecord?id=CVE-2024-41092 Référence CVE CVE-2024-41149 https://www.cve.org/CVERecord?id=CVE-2024-41149 Référence CVE CVE-2024-42098 https://www.cve.org/CVERecord?id=CVE-2024-42098 Référence CVE CVE-2024-42229 https://www.cve.org/CVERecord?id=

Official advisory

CERT-FR · French · CERTFR-2024-AVI-0546Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2024-35809 Référence CVE CVE-2024-35810 https://www.cve.org/CVERecord?id=CVE-2024-35810 Référence CVE CVE-2024-35811 https://www.cve.org/CVERecord?id=CVE-2024-35811 Référence CVE CVE-2024-35813 https://www.cve.org/CVERecord?id=CVE-2024-35813 Référence CVE CVE-2024-35814 https://www.cve.org/CVERecord?id=CVE-2024-35814 Référence CVE CVE-2024-35817 https://www.cve.org/CVERecord?id=CVE-2024-35817 Référence CVE CVE-2024-35819 https://www.cve.org/CVERecord?id=CVE-2024-35819 Référence CVE CVE-2024-35821 https://www.cve.org/CVERecord?id=CVE-2024-35821 Référence CVE CVE-2024-35822 https://www.cve.org/CVERecord?id=CVE-2024-35822 Référence CVE CVE-2024-35826 https://www.cve.org/CVERecord?id=CVE-2024-35826 Référence CVE CVE-2024-35827 https://www.cve.org/CVERecord?id=CVE-2024-35827 Référence CVE CVE-2024-35828 https://www.cve.org/CVERecord?id=CVE-2024-35828 Référence CVE CVE-2024-35829 https://www.cve.org/CVERecord?id=CVE-2024-35829 Référence CVE CVE-2024-35830 https://www.cve.org/CVERecord?id=CVE-2024-35830 Référence CVE CVE-2024-35831 https://www.cve.org/CVERecord?id=CVE-2024-35831 Référence CVE CVE-2024-35843 https://www.cve.org/CVERecord?id=CVE-2024-35843 Référence CVE CVE-2024-35844 https://www.cve.org/CVERecord?id=CVE-2024-35844 Référence CVE CVE-2024-35845 https://www.cve.org/CVERecord?id=

Official advisory

Patch and workaround

Operational remediation based on structured source evidence.

Status ? Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.: Patch available
Affected: 9025ee1079291fac79c7fcc20086e9f0015f86f4 < 242006996d15f5ca62e22f8c7de077d9c4a8f367; 8955324cc9f93304efe163120038b38c36c09fba < 7d3765550374f71248c55e6206ea1d6fd4537e65; d198c15d181cc9d580f0f2c25150b077d1d49c1a < ecbd9ced84dd655a8f4cd49d2aad0e80dbf6bf35; 1b151e2435fc3a9b10c8946c6aebe9f3e1938c55 < c9d3d2fbde9b8197bce88abcbe8ee8e713ffe7c2; 1b151e2435fc3a9b10c8946c6aebe9f3e1938c55 < 38b43539d64b2fa020b3b9a752a986769f87f7a6; d2d0b95ca1b5fefa3deed444a803c9f809db66cf; 3f4e660144edb053886fc80f587a71ad7afc2ad6; bfc0647791d7a8f3e178a896a26c4ef7794876b7
Fixed: < 6.8; 6.1.84 ≤ 6.1.*; 6.6.24 ≤ 6.6.*; 6.7.12 ≤ 6.7.*; 6.8.3 ≤ 6.8.*; 6.9 ≤ *
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.

Evidence and provenance

Published 17 May 2024 · Last source change 23 May 2026, 15:43 UTC · CWE not yet assigned

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-2024-35726

Product sourceCNA

Remediation sourceCVE/CNA references

CWE sourceUnavailable

NVD statusNVD enriched

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

Material change intelligence

What changed after publication

View recent updates →

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

2024-05-17CVE published

2026-05-23Fixed release or patch reference recorded

ENISA EUVD · EUVD-2024-35726↗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.

block: Fix page refcounts for unaligned buffers in __bio_release_pages()

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

EUVD-2024-35726

What, why and how

Exploit reality and attack path

Official authority intelligence

Patch and workaround

Evidence and provenance

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