DEBIAN-CVE-2023-53171

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Source
https://security-tracker.debian.org/tracker/CVE-2023-53171
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-53171.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2023-53171
Upstream
Published
2025-09-15T14:15:38Z
Modified
2025-09-19T07:33:39.784476Z
Summary
[none]
Details

In the Linux kernel, the following vulnerability has been resolved: vfio/type1: prevent underflow of lockedvm via exec() When a vfio container is preserved across exec, the task does not change, but it gets a new mm with lockedvm=0, and loses the count from existing dma mappings. If the user later unmaps a dma mapping, lockedvm underflows to a large unsigned value, and a subsequent dma map request fails with ENOMEM in _accountlockedvm. To avoid underflow, grab and save the mm at the time a dma is mapped. Use that mm when adjusting lockedvm, rather than re-acquiring the saved task's mm, which may have changed. If the saved mm is dead, do nothing. lockedvm is incremented for existing mappings in a subsequent patch.

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
5.10.178-1

Affected versions

5.*

5.10.46-4
5.10.46-5
5.10.70-1~bpo10+1
5.10.70-1
5.10.84-1
5.10.92-1~bpo10+1
5.10.92-1
5.10.92-2
5.10.103-1~bpo10+1
5.10.103-1
5.10.106-1
5.10.113-1
5.10.120-1~bpo10+1
5.10.120-1
5.10.127-1
5.10.127-2~bpo10+1
5.10.127-2
5.10.136-1
5.10.140-1
5.10.148-1
5.10.149-1
5.10.149-2
5.10.158-1
5.10.158-2
5.10.162-1

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
6.1.20-1

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
6.1.20-1

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
6.1.20-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}