CVE-2021-46918 - Vulnerability Details - OpenCVE

Description

In the Linux kernel, the following vulnerability has been resolved:

dmaengine: idxd: clear MSIX permission entry on shutdown

Add disabling/clearing of MSIX permission entries on device shutdown to
mirror the enabling of the MSIX entries on probe. Current code left the
MSIX enabled and the pasid entries still programmed at device shutdown.

Published: 2024-02-27

Score: 5.5 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

No analysis available yet.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Linux

Linux

unaffected

Version	Status	Constraints
`8e50d392652f20616a136165dff516b86baf5e49`	affected	< c84b8982d7aa9b4717dc36a1c6cbc93ee153b500
`8e50d392652f20616a136165dff516b86baf5e49`	affected	< 6df0e6c57dfc064af330071f372f11aa8c584997

Linux

Linux

affected

Version	Status	Constraints
`5.11`	affected	—
`0`	unaffected	< 5.11
`5.11.16`	unaffected	≤ 5.11.*
`5.12`	unaffected	≤ *

Configuration 1 [-]

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No remediation available yet.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00014.

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://git.kernel.org/stable/c/6df0e6c57dfc064af330071f372f11aa8c584997
https://git.kernel.org/stable/c/c84b8982d7aa9b4717dc36a1c6cbc93ee153b500
https://nvd.nist.gov/vuln/detail/CVE-2021-46918
https://www.cve.org/CVERecord?id=CVE-2021-46918

History

No history.

Subscriptions

Linux Linux Kernel

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-02-27T06:53:56.082Z

Updated: 2025-05-04T07:00:20.114Z

Reserved: 2024-02-25T13:45:52.719Z

Link: CVE-2021-46918

Vulnrichment

Updated: 2024-08-04T05:17:42.978Z

NVD

Status : Modified

Published: 2024-02-27T07:15:08.540

Modified: 2024-11-21T06:34:55.823

Link: CVE-2021-46918

Redhat

Severity : Low

Publid Date: 2024-02-27T00:00:00Z

Links: CVE-2021-46918 - Bugzilla

OpenCVE Enrichment

No data.

Weaknesses

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