CVE-2021-47502 - Vulnerability Details - OpenCVE

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

ASoC: codecs: wcd934x: handle channel mappping list correctly

Currently each channel is added as list to dai channel list, however
there is danger of adding same channel to multiple dai channel list
which endups corrupting the other list where its already added.

This patch ensures that the channel is actually free before adding to
the dai channel list and also ensures that the channel is on the list
before deleting it.

This check was missing previously, and we did not hit this issue as
we were testing very simple usecases with sequence of amixer commands.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required High

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 0.00027.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Linux	Linux Kernel

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors	Products
Linux	Linux Kernel

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://git.kernel.org/stable/c/1089dac26c6b4b833323ae6c0ceab29fb30ede72
https://git.kernel.org/stable/c/23ba28616d3063bd4c4953598ed5e439ca891101
https://git.kernel.org/stable/c/339ffb5b56005582aacc860524d2d208604049d1
https://nvd.nist.gov/vuln/detail/CVE-2021-47502
https://www.cve.org/CVERecord?id=CVE-2021-47502

History

Mon, 04 Nov 2024 12:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-05-24T15:01:49.699Z

Updated: 2025-05-04T07:12:24.711Z

Reserved: 2024-05-22T06:20:56.204Z

Link: CVE-2021-47502

Vulnrichment

Updated: 2024-08-04T05:39:59.770Z

NVD

Status : Awaiting Analysis

Published: 2024-05-24T15:15:10.350

Modified: 2024-11-21T06:36:21.280

Link: CVE-2021-47502

Redhat

Severity : Low

Publid Date: 2024-05-24T00:00:00Z

Links: CVE-2021-47502 - Bugzilla

OpenCVE Enrichment

Updated: 2025-07-13T11:14:14Z

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