Linux Kernel up to 6.0.9 KVM kvm_xen_eventfd_assign privilege escalation

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Linux Kernel up to 6.0.9. The affected element is the function kvm_xen_eventfd_assign of the component KVM. The manipulation results in an unknown weakness. This vulnerability is identified as CVE-2022-49774. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.0.9. It has been classified as problematic. Affected is the function kvm_xen_eventfd_assign of the component KVM. The impact remains unknown. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/xen: Fix eventfd error handling in kvm_xen_eventfd_assign() Should not call eventfd_ctx_put() in case of error. [Introduce new goto target instead. - Paolo]

The advisory is available at git.kernel.org. This vulnerability is traded as CVE-2022-49774 since 04/16/2025. Technical details are known, but there is no available exploit.

Upgrading to version 6.0.10 eliminates this vulnerability. Applying the patch d76f46f47dfde220712d1420ee5dbc546c8fc674/7353633814f6e5b4899fb9ee1483709d6bb0e1cd is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Privilege escalation
CWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 6.0.10
Patch: d76f46f47dfde220712d1420ee5dbc546c8fc674/7353633814f6e5b4899fb9ee1483709d6bb0e1cd

Timelineinfo

04/16/2025 🔍
05/01/2025 +15 days 🔍
05/01/2025 +0 days 🔍
11/07/2025 +190 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-49774 (🔍)
GCVE (CVE): GCVE-0-2022-49774
GCVE (VulDB): GCVE-100-306906

Entryinfo

Created: 05/01/2025 17:17
Updated: 11/07/2025 20:29
Changes: 05/01/2025 17:17 (57), 11/07/2025 20:29 (11)
Complete: 🔍
Cache ID: 216::103

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