DEBIAN-CVE-2022-49147

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Source
https://security-tracker.debian.org/tracker/CVE-2022-49147
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49147.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2022-49147
Upstream
Published
2025-02-26T07:00:51Z
Modified
2025-10-16T09:01:25Z
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: block: Fix the maximum minor value is blkallocextminor() idaallocrange(..., min, max, ...) returns values from min to max, inclusive. So, NREXTDEVT is a valid idx returned by blkallocextminor(). This is an issue because in deviceadddisk(), this value is used in: ddev->devt = MKDEV(disk->major, disk->firstminor); and NREXTDEVT is '(1 << MINORBITS)'. So, should 'disk->firstminor' be NREXTDEVT, it would overflow.

References

Affected packages

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
5.17.3-1

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
5.17.3-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14 / 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
5.17.3-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}