CVE-2021-47063

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Source

https://nvd.nist.gov/vuln/detail/CVE-2021-47063

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-47063.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2021-47063

Related

Published

2024-02-29T23:15:07Z

Modified

2024-09-18T01:00:21Z

Summary

[none]

Details

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

drm: bridge/panel: Cleanup connector on bridge detach

If we don't call drmconnectorcleanup() manually in panelbridgedetach(), the connector will be cleaned up with the other DRM objects in the call to drmmodeconfigcleanup(). However, since our drmconnector is devm-allocated, by the time drmmodeconfig_cleanup() will be called, our connector will be long gone. Therefore, the connector must be cleaned up when the bridge is detached to avoid use-after-free conditions.

v2: Cleanup connector only if it was created

v3: Add FIXME

v4: (Use connector->dev) directly in if() block

References

Affected packages

Debian:11 / linux

Package

Name: linux
Purl: pkg:deb/debian/linux?arch=source

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

5.10.38-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:12 / linux

Package

Name: linux
Purl: pkg:deb/debian/linux?arch=source

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

5.10.38-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:13 / linux

Package

Name: linux
Purl: pkg:deb/debian/linux?arch=source

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

5.10.38-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}