CVE-2021-46994

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Source
https://nvd.nist.gov/vuln/detail/CVE-2021-46994
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-46994.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-46994
Related
Published
2024-02-28T09:15:37Z
Modified
2024-12-06T14:42:34Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

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

can: mcp251x: fix resume from sleep before interface was brought up

Since 8ce8c0abcba3 the driver queues work via priv->restartwork when resuming after suspend, even when the interface was not previously enabled. This causes a null dereference error as the workqueue is only allocated and initialized in mcp251xopen().

To fix this we move the workqueue init to mcp251xcanprobe() as there is no reason to do it later and repeat it whenever mcp251x_open() is called.

[mkl: fix error handling in mcp251x_stop()]

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"
}