DEBIAN-CVE-2025-21972

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Source
https://security-tracker.debian.org/tracker/DEBIAN-CVE-2025-21972
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-21972.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2025-21972
Upstream
Published
2025-04-01T16:15:28Z
Modified
2025-09-19T06:14:30Z
Summary
[none]
Details

In the Linux kernel, the following vulnerability has been resolved: net: mctp: unshare packets when reassembling Ensure that the fraglist used for reassembly isn't shared with other packets. This avoids incorrect reassembly when packets are cloned, and prevents a memory leak due to circular references between fragments and their skbsharedinfo. The upcoming MCTP-over-USB driver uses skbclone which can trigger the problem - other MCTP drivers don't share SKBs. A kunit test is added to reproduce the issue.

References

Affected packages

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
6.12.20-1

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
6.12.20-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}