CVE-2021-47305

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Source

https://nvd.nist.gov/vuln/detail/CVE-2021-47305

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-47305.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2021-47305

Related

Published

2024-05-21T15:15:18Z

Modified

2024-09-18T03:17:25.120924Z

Summary

[none]

Details

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

dma-buf/sync_file: Don't leak fences on merge failure

Each addfence() call does a dmafenceget() on the relevant fence. In the error path, we weren't calling dmafenceput() so all those fences got leaked. Also, in the kreallocarray failure case, we weren't freeing the fences array. Instead, ensure that i and fences are always zero-initialized and dmafenceput() all the fences and kfree(fences) on every error path.

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

5.10.70-1

Affected versions

5.*

5.10.46-4

5.10.46-5

5.10.70-1~bpo10+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

5.14.6-1

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

5.14.6-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}