BlackTreeCVE Intelligence
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Full vulnerability report · 2022
CVE-2022-1116High confidence

Integer Overflow or Wraparound vulnerability in io_uring of Linux Kernel allows local attacker to cause memory corruption and escalate privileges to root

Linux · Kernel

7.8HighCVSS 3.1
Recommended action
Within 7 days

High technical severity with public exploit material referenced by a structured source; 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 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-2022-24459

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 with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

Integer Overflow or Wraparound vulnerability in io_uring of Linux Kernel allows local attacker to cause memory corruption and escalate privileges to root. This issue affects: Linux Kernel versions prior to 5.4.189; version 5.4.24 and later versions.

What

Integer Overflow or Wraparound vulnerability in io_uring of Linux Kernel allows local attacker to cause memory corruption and escalate privileges to root. This issue affects: Linux Kernel versions prior to 5.4.189; version 5.4.24 and later versions.

Why

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

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

Integer Overflow or Wraparound vulnerability in io_uring of Linux Kernel allows local attacker to cause memory corruption and escalate privileges to root. This issue affects: Linux Kernel versions prior to 5.4.189; version 5.4.24 and later versions.

Why

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

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.
Reference recorded

A structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.

Likely attack path
local access → Integer Overflow or Wraparound → 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-190

CWE-190: Integer Overflow or Wraparound. The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

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-190Public exploit reference
A

Official authority intelligence

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

BSI · German · WID-SEC-2022-2234Android Patchday Dezember 2022

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Google Android ausnutzen, um seine Privilegien zu erweitern, einen Denial-of-Service-Zustand zu verursachen, beliebigen Code auszuführen und vertrauliche Informationen offenzulegen.

Official advisory ↗
CERT-FR · French · CERTFR-2022-AVI-802Multiples vulnérabilités dans le noyau Linux de SUSE

De multiples vulnérabilités ont été découvertes dans le noyau Linux de SUSE. Certaines d'entre elles permettent à un attaquant de provoquer un problème de sécurité non spécifié par l'éditeur, un déni de service à distance et une atteinte à l'intégrité des données.

Official advisory ↗
CERT-FR · French · CERTFR-2022-AVI-790Multiples vulnérabilités dans le noyau Linux de SUSE

De multiples vulnérabilités ont été corrigées dans le noyau Linux de SUSE . Elles permettent à un attaquant de provoquer un contournement de la politique de sécurité, une élévation de privilèges, une atteinte à l'intégrité des données, un déni de service à distance et une atteinte à la confidentialité des données.

Official advisory ↗
CERT-FR · French · CERTFR-2022-AVI-774Multiples vulnérabilités dans le noyau Linux de SUSE

De multiples vulnérabilités ont été découvertes dans le noyau Linux de SUSE. Certaines d'entre elles permettent à un attaquant de provoquer un déni de service à distance, un contournement de la politique de sécurité et une atteinte à l'intégrité des données.

Official advisory ↗
CERT-FR · French · CERTFR-2022-AVI-766Multiples vulnérabilités dans le noyau Linux de SUSE

De multiples vulnérabilités ont été corrigées dans le noyau Linux de SUSE . Elles permettent à un attaquant de provoquer un déni de service à distance, une atteinte à la confidentialité des données, un contournement de la politique de sécurité, une atteinte à l'intégrité des données et une élévation de privilèges.

Official advisory ↗
CERT-FR · French · CERTFR-2022-AVI-748Multiples vulnérabilités dans le noyau Linux de SUSE

te/announcement/2022/suse-su-20222809-1/ Bulletin de sécurité SUSE suse-su-20222827-1 du 16 août 2022 https://www.suse.com/support/update/announcement/2022/suse-su-20222827-1/ Référence CVE CVE-2020-36557 https://www.cve.org/CVERecord?id=CVE-2020-36557 Référence CVE CVE-2020-36558 https://www.cve.org/CVERecord?id=CVE-2020-36558 Référence CVE CVE-2021-26341 https://www.cve.org/CVERecord?id=CVE-2021-26341 Référence CVE CVE-2021-33655 https://www.cve.org/CVERecord?id=CVE-2021-33655 Référence CVE CVE-2021-33656 https://www.cve.org/CVERecord?id=CVE-2021-33656 Référence CVE CVE-2021-4157 https://www.cve.org/CVERecord?id=CVE-2021-4157 Référence CVE CVE-2022-1116 https://www.cve.org/CVERecord?id=CVE-2022-1116 Référence CVE CVE-2022-1462 https://www.cve.org/CVERecord?id=CVE-2022-1462 Référence CVE CVE-2022-1679 https://www.cve.org/CVERecord?id=CVE-2022-1679 Référence CVE CVE-2022-20132 https://www.cve.org/CVERecord?id=CVE-2022-20132 Référence CVE CVE-2022-20141 https://www.cve.org/CVERecord?id=CVE-2022-20141 Référence CVE CVE-2022-20154 https://www.cve.org/CVERecord?id=CVE-2022-20154 Référence CVE CVE-2022-20166 https://www.cve.org/CVERecord?id=CVE-2022-20166 Référence CVE CVE-2022-21505 https://www.cve.org/CVERecord?id=CVE-2022-21505 Référence CVE CVE-2022-2318 https://www.cve.org/CVERecord?id=CVE-20

Official advisory ↗
CERT-FR · French · CERTFR-2022-AVI-741Multiples vulnérabilités dans le noyau Linux de SUSE

0222783-1 du 11 août 2022 https://www.suse.com/support/update/announcement/2022/suse-su-20222783-1 Bulletin de sécurité le noyau Linux de SUSE suse-su-20222789-1 du 11 août 2022 https://www.suse.com/support/update/announcement/2022/suse-su-20222789-1 Référence CVE CVE-2020-36557 https://www.cve.org/CVERecord?id=CVE-2020-36557 Référence CVE CVE-2020-36558 https://www.cve.org/CVERecord?id=CVE-2020-36558 Référence CVE CVE-2021-33655 https://www.cve.org/CVERecord?id=CVE-2021-33655 Référence CVE CVE-2021-33656 https://www.cve.org/CVERecord?id=CVE-2021-33656 Référence CVE CVE-2021-39698 https://www.cve.org/CVERecord?id=CVE-2021-39698 Référence CVE CVE-2022-1116 https://www.cve.org/CVERecord?id=CVE-2022-1116 Référence CVE CVE-2022-1419 https://www.cve.org/CVERecord?id=CVE-2022-1419 Référence CVE CVE-2022-1462 https://www.cve.org/CVERecord?id=CVE-2022-1462 Référence CVE CVE-2022-1679 https://www.cve.org/CVERecord?id=CVE-2022-1679 Référence CVE CVE-2022-20141 https://www.cve.org/CVERecord?id=CVE-2022-20141 Référence CVE CVE-2022-20166 https://www.cve.org/CVERecord?id=CVE-2022-20166 Référence CVE CVE-2022-21505 https://www.cve.org/CVERecord?id=CVE-2022-21505 Référence CVE CVE-2022-2318 https://www.cve.org/CVERecord?id=CVE-2022-2318 Référence CVE CVE-2022-26365 https://www.cve.org/CVERecord?id=CVE-2022-

Official advisory ↗
CERT-FR · French · CERTFR-2022-AVI-670Multiples vulnérabilités dans le noyau Linux de SUSE

.org/CVERecord?id=CVE-2021-4157 Référence CVE CVE-2021-4204 https://www.cve.org/CVERecord?id=CVE-2021-4204 Référence CVE CVE-2021-44879 https://www.cve.org/CVERecord?id=CVE-2021-44879 Référence CVE CVE-2021-45402 https://www.cve.org/CVERecord?id=CVE-2021-45402 Référence CVE CVE-2022-0264 https://www.cve.org/CVERecord?id=CVE-2022-0264 Référence CVE CVE-2022-0494 https://www.cve.org/CVERecord?id=CVE-2022-0494 Référence CVE CVE-2022-0617 https://www.cve.org/CVERecord?id=CVE-2022-0617 Référence CVE CVE-2022-1012 https://www.cve.org/CVERecord?id=CVE-2022-1012 Référence CVE CVE-2022-1016 https://www.cve.org/CVERecord?id=CVE-2022-1016 Référence CVE CVE-2022-1116 https://www.cve.org/CVERecord?id=CVE-2022-1116 Référence CVE CVE-2022-1184 https://www.cve.org/CVERecord?id=CVE-2022-1184 Référence CVE CVE-2022-1198 https://www.cve.org/CVERecord?id=CVE-2022-1198 Référence CVE CVE-2022-1205 https://www.cve.org/CVERecord?id=CVE-2022-1205 Référence CVE CVE-2022-1462 https://www.cve.org/CVERecord?id=CVE-2022-1462 Référence CVE CVE-2022-1508 https://www.cve.org/CVERecord?id=CVE-2022-1508 Référence CVE CVE-2022-1651 https://www.cve.org/CVERecord?id=CVE-2022-1651 Référence CVE CVE-2022-1652 https://www.cve.org/CVERecord?id=CVE-2022-1652 Référence CVE CVE-2022-1671 https://www.cve.org/CVERecord?id=CVE-2022-1671 Ré

Official advisory ↗
CERT-FR · French · CERTFR-2022-AVI-612Multiples vulnérabilités dans le noyau Linux de SUSE

De multiples vulnérabilités ont été découvertes dans le noyau Linux de SUSE. Certaines d'entre elles permettent à un attaquant de provoquer un problème de sécurité non spécifié par l'éditeur, un déni de service et un contournement de la politique de sécurité.

Official advisory ↗
CERT-FR · French · CERTFR-2022-AVI-603Multiples vulnérabilités dans le noyau Linux de SUSE

De multiples vulnérabilités ont été découvertes dans le noyau Linux de SUSE. Certaines d'entre elles permettent à un attaquant de provoquer un problème de sécurité non spécifié par l'éditeur, une atteinte à l'intégrité des données et une atteinte à la confidentialité des données.

Official advisory ↗
CERT-FR · French · CERTFR-2022-AVI-592Multiples vulnérabilités dans le noyau Linux de SUSE

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

Official advisory ↗
CERT-FR · French · CERTFR-2022-AVI-520Multiples vulnérabilités dans le noyau Linux d'Ubuntu

De multiples vulnérabilités ont été découvertes dans le noyau Linux d'Ubuntu. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire, un déni de service et un contournement de la politique de sécurité.

Official advisory ↗
CERT-FR · French · CERTFR-2022-AVI-516Multiples vulnérabilités dans le noyau Linux d'Ubuntu

De multiples vulnérabilités ont été découvertes dans le noyau Linux d'Ubuntu. Elles permettent à un attaquant de provoquer une exécution de code arbitraire, un déni de service et un contournement de la politique de sécurité.

Official advisory ↗
CERT-FR · French · CERTFR-2022-AVI-495Multiples vulnérabilités dans le noyau Linux de Ubuntu

De multiples vulnérabilités ont été découvertes dans le noyau Linux de Ubuntu. Elles permettent à un attaquant de provoquer une exécution de code arbitraire, un déni de service et un contournement de la politique de sécurité.

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: unspecified < 5.4.189, 5.4.24 < unspecified
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 17 May 2022 · Last source change 21 Apr 2025, 13:53 UTC · CWE-190 · Integer Overflow or Wraparound

CVE recordCVE.org · 5.1
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-2022-24459
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-2022-1116 · cve.blacktree.nl