CVE-2021-47058

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Source

https://nvd.nist.gov/vuln/detail/CVE-2021-47058

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-47058.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2021-47058

Related

Published

2024-02-29T23:15:07Z

Modified

2024-09-18T01:00:22Z

Summary

[none]

Details

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

regmap: set debugfs_name to NULL after it is freed

There is a upstream commit cffa4b2122f5("regmap:debugfs: Fix a memory leak when calling regmapattachdev") that adds a if condition when create name for debugfsname. With below function invoking logical, debugfsname is freed in regmapdebugfsexit(), but it is not created again because of the if condition introduced by above commit. regmapreinitcache() regmapdebugfsexit() ... regmapdebugfsinit() So, set debugfs_name to NULL after it is freed.

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"
}