CVE-2021-47671

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Source
https://nvd.nist.gov/vuln/detail/CVE-2021-47671
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-47671.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-47671
Related
Published
2025-04-17T18:15:43Z
Modified
2025-04-21T18:40:48Z
Downstream
Summary
[none]
Details

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

can: etases58x: es58xrxerrmsg(): fix memory leak in error path

In es58xrxerrmsg(), if can->dosetmode() fails, the function directly returns without calling netifrx(skb). This means that the skb previously allocated by alloccanerr_skb() is not freed. In other terms, this is a memory leak.

This patch simply removes the return statement in the error branch and let the function continue.

Issue was found with GCC -fanalyzer, please follow the link below for details.

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
5.15.3-1

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
5.15.3-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}