CVE-2021-47560

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Source

https://nvd.nist.gov/vuln/detail/CVE-2021-47560

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-47560.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2021-47560

Related

Published

2024-05-24T15:15:20Z

Modified

2024-09-18T03:18:36.981032Z

Summary

[none]

Details

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

mlxsw: spectrum: Protect driver from buggy firmware

When processing port up/down events generated by the device's firmware, the driver protects itself from events reported for non-existent local ports, but not the CPU port (local port 0), which exists, but lacks a netdev.

This can result in a NULL pointer dereference when calling netifcarrier{on,off}().

Fix this by bailing early when processing an event reported for the CPU port. Problem was only observed when running on top of a buggy emulator.

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

5.10.84-1

Affected versions

5.*

5.10.46-4

5.10.46-5

5.10.70-1~bpo10+1

5.10.70-1

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

5.15.15-1

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

5.15.15-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}