DEBIAN-CVE-2021-47295

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Source
https://security-tracker.debian.org/tracker/CVE-2021-47295
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-47295.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2021-47295
Upstream
Published
2024-05-21T15:15:17Z
Modified
2025-10-10T19:30:15.923906Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/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: net: sched: fix memory leak in tcindexpartialdestroywork Syzbot reported memory leak in tcindexsetparms(). The problem was in non-freed perfect hash in tcindexpartialdestroywork(). In tcindexsetparms() new tcindexdata is allocated and some fields from old one are copied to new one, but not the perfect hash. Since tcindexpartialdestroywork() is the destroy function for old tcindex_data, we need to free perfect hash to avoid memory leak.

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
5.10.70-1

Affected versions

5.*

5.10.46-4
5.10.46-5
5.10.70-1~bpo10+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
5.14.6-1

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
5.14.6-1

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
5.14.6-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}