BlackTreeIndependent security intelligence
← Back to the CVE catalogue
Full vulnerability report · 2022
CVE-2022-2938High confidence

A flaw was found in the Linux kernel's implementation of Pressure Stall Information

n/a · kernel

7.8HighCVSS 3.1
Recommended action
Within 7 days

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

Patch available
Distribution package intelligence

Ubuntu vendor package status

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

1 package state
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 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 8 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-2022-35159

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 actionWithin 7 days

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

Patch available
01

What, why and how

A flaw was found in the Linux kernel's implementation of Pressure Stall Information. While the feature is disabled by default, it could allow an attacker to crash the system or have other memory-corruption side effects.

What

A flaw was found in the Linux kernel's implementation of Pressure Stall Information. While the feature is disabled by default, it could allow an attacker to crash the system or have other memory-corruption side effects.

Why

The program can continue using memory after it has been released, producing unsafe and attacker-influenceable behaviour.

How

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

What

A flaw was found in the Linux kernel's implementation of Pressure Stall Information. While the feature is disabled by default, it could allow an attacker to crash the system or have other memory-corruption side effects.

Why

The program can continue using memory after it has been released, producing unsafe and attacker-influenceable behaviour.

How

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

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 After Free → disrupt the affected service
Attack surface
Local
Privileges required
Low: a basic authenticated account is required
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-416

CWE-416: Use After Free. The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory belongs to the code that operates on the new pointer.

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

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

AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.
Denial of serviceCWE-416
A

Official authority intelligence

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

BSI · German · WID-SEC-W-2022-1164Linux Kernel: Schwachstelle ermöglicht Denial of Service

Ein lokaler Angreifer kann eine Schwachstelle im Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuführen oder sonstige Auswirkungen zu verursachen.

Official advisory
CERT-FR · French · CERTFR-2024-AVI-0578Multiples vulnérabilités dans le noyau Linux de SUSE

ord?id=CVE-2021-47616 Référence CVE CVE-2021-47617 https://www.cve.org/CVERecord?id=CVE-2021-47617 Référence CVE CVE-2021-47618 https://www.cve.org/CVERecord?id=CVE-2021-47618 Référence CVE CVE-2021-47619 https://www.cve.org/CVERecord?id=CVE-2021-47619 Référence CVE CVE-2021-47620 https://www.cve.org/CVERecord?id=CVE-2021-47620 Référence CVE CVE-2022-0435 https://www.cve.org/CVERecord?id=CVE-2022-0435 Référence CVE CVE-2022-22942 https://www.cve.org/CVERecord?id=CVE-2022-22942 Référence CVE CVE-2022-23820 https://www.cve.org/CVERecord?id=CVE-2022-23820 Référence CVE CVE-2022-23830 https://www.cve.org/CVERecord?id=CVE-2022-23830 Référence CVE CVE-2022-2938 https://www.cve.org/CVERecord?id=CVE-2022-2938 Référence CVE CVE-2022-48651 https://www.cve.org/CVERecord?id=CVE-2022-48651 Référence CVE CVE-2022-48711 https://www.cve.org/CVERecord?id=CVE-2022-48711 Référence CVE CVE-2022-48712 https://www.cve.org/CVERecord?id=CVE-2022-48712 Référence CVE CVE-2022-48713 https://www.cve.org/CVERecord?id=CVE-2022-48713 Référence CVE CVE-2022-48714 https://www.cve.org/CVERecord?id=CVE-2022-48714 Référence CVE CVE-2022-48715 https://www.cve.org/CVERecord?id=CVE-2022-48715 Référence CVE CVE-2022-48716 https://www.cve.org/CVERecord?id=CVE-2022-48716 Référence CVE CVE-2022-48717 https://www.cve.org/CVERecord?id=C

Official advisory
CERT-FR · French · CERTFR-2024-AVI-0198Multiples vulnérabilités dans le noyau Linux de RedHat

De multiples vulnérabilités ont été découvertes dans le noyau Linux de RedHat . Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, une atteinte à l'intégrité des données et une atteinte à la confidentialité des données.

Official advisory
CERT-FR · French · CERTFR-2022-AVI-826Multiples vulnérabilités dans le noyau Linux de SUSE

rg/CVERecord?id=CVE-2022-2585 Référence CVE CVE-2022-2588 https://www.cve.org/CVERecord?id=CVE-2022-2588 Référence CVE CVE-2022-26373 https://www.cve.org/CVERecord?id=CVE-2022-26373 Référence CVE CVE-2022-2639 https://www.cve.org/CVERecord?id=CVE-2022-2639 Référence CVE CVE-2022-2663 https://www.cve.org/CVERecord?id=CVE-2022-2663 Référence CVE CVE-2022-28356 https://www.cve.org/CVERecord?id=CVE-2022-28356 Référence CVE CVE-2022-28693 https://www.cve.org/CVERecord?id=CVE-2022-28693 Référence CVE CVE-2022-2873 https://www.cve.org/CVERecord?id=CVE-2022-2873 Référence CVE CVE-2022-2905 https://www.cve.org/CVERecord?id=CVE-2022-2905 Référence CVE CVE-2022-2938 https://www.cve.org/CVERecord?id=CVE-2022-2938 Référence CVE CVE-2022-29581 https://www.cve.org/CVERecord?id=CVE-2022-29581 Référence CVE CVE-2022-2959 https://www.cve.org/CVERecord?id=CVE-2022-2959 Référence CVE CVE-2022-2977 https://www.cve.org/CVERecord?id=CVE-2022-2977 Référence CVE CVE-2022-2991 https://www.cve.org/CVERecord?id=CVE-2022-2991 Référence CVE CVE-2022-3028 https://www.cve.org/CVERecord?id=CVE-2022-3028 Référence CVE CVE-2022-3078 https://www.cve.org/CVERecord?id=CVE-2022-3078 Référence CVE CVE-2022-32250 https://www.cve.org/CVERecord?id=CVE-2022-32250 Référence CVE CVE-2022-36879 https://www.cve.org/CVERecord?id=CVE-2022-36

Official advisory
CERT-FR · French · CERTFR-2022-AVI-1125Multiples vulnérabilités dans le noyau Linux de SUSE

/CVERecord?id=CVE-2022-2602 Référence CVE CVE-2022-26373 https://www.cve.org/CVERecord?id=CVE-2022-26373 Référence CVE CVE-2022-2639 https://www.cve.org/CVERecord?id=CVE-2022-2639 Référence CVE CVE-2022-2663 https://www.cve.org/CVERecord?id=CVE-2022-2663 Référence CVE CVE-2022-28356 https://www.cve.org/CVERecord?id=CVE-2022-28356 Référence CVE CVE-2022-28693 https://www.cve.org/CVERecord?id=CVE-2022-28693 Référence CVE CVE-2022-2873 https://www.cve.org/CVERecord?id=CVE-2022-2873 Référence CVE CVE-2022-28748 https://www.cve.org/CVERecord?id=CVE-2022-28748 Référence CVE CVE-2022-2905 https://www.cve.org/CVERecord?id=CVE-2022-2905 Référence CVE CVE-2022-2938 https://www.cve.org/CVERecord?id=CVE-2022-2938 Référence CVE CVE-2022-2959 https://www.cve.org/CVERecord?id=CVE-2022-2959 Référence CVE CVE-2022-2964 https://www.cve.org/CVERecord?id=CVE-2022-2964 Référence CVE CVE-2022-2977 https://www.cve.org/CVERecord?id=CVE-2022-2977 Référence CVE CVE-2022-2978 https://www.cve.org/CVERecord?id=CVE-2022-2978 Référence CVE CVE-2022-29900 https://www.cve.org/CVERecord?id=CVE-2022-29900 Référence CVE CVE-2022-29901 https://www.cve.org/CVERecord?id=CVE-2022-29901 Référence CVE CVE-2022-3028 https://www.cve.org/CVERecord?id=CVE-2022-3028 Référence CVE CVE-2022-3078 https://www.cve.org/CVERecord?id=CVE-2022-307

Official advisory
CERT-FR · French · CERTFR-2022-AVI-1002Multiples vulnérabilités dans le noyau Linux de Red Hat

ecord?id=CVE-2022-21499 Référence CVE CVE-2022-23960 https://www.cve.org/CVERecord?id=CVE-2022-23960 Référence CVE CVE-2022-24448 https://www.cve.org/CVERecord?id=CVE-2022-24448 Référence CVE CVE-2022-2586 https://www.cve.org/CVERecord?id=CVE-2022-2586 Référence CVE CVE-2022-26373 https://www.cve.org/CVERecord?id=CVE-2022-26373 Référence CVE CVE-2022-2639 https://www.cve.org/CVERecord?id=CVE-2022-2639 Référence CVE CVE-2022-27950 https://www.cve.org/CVERecord?id=CVE-2022-27950 Référence CVE CVE-2022-28390 https://www.cve.org/CVERecord?id=CVE-2022-28390 Référence CVE CVE-2022-28893 https://www.cve.org/CVERecord?id=CVE-2022-28893 Référence CVE CVE-2022-2938 https://www.cve.org/CVERecord?id=CVE-2022-2938 Référence CVE CVE-2022-29581 https://www.cve.org/CVERecord?id=CVE-2022-29581 Référence CVE CVE-2022-36946 https://www.cve.org/CVERecord?id=CVE-2022-36946 Gestion détaillée du document le 08 novembre 2022 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales À propos Contact cyber.gouv.fr service-public.fr legifrance.gouv.fr info.gouv.fr france.fr info.gouv.fr/risques Premier Ministre / Secrétariat Général de la Défense et de la Sécurité Nationale / Agence nationale de la sécurité des systèmes d'information

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
kernel 5.17
Fixed
An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
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 23 Aug 2022 · Last source change 3 Aug 2024, 00:53 UTC · CWE-416 · Use After Free

CVE recordCVE.org · 5.1
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-2022-35159
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceCNA
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-2022-2938 · cve.blacktree.nl