CVE-2021-47236

Source
https://nvd.nist.gov/vuln/detail/CVE-2021-47236
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-47236.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-47236
Related
Published
2024-05-21T15:15:12Z
Modified
2024-09-18T01:00:20Z
Summary
[none]
Details

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

net: cdc_eem: fix tx fixup skb leak

when usbnet transmit a skb, eem fixup it in eemtxfixup(), if skbcopyexpand() failed, it return NULL, usbnetstartxmit() will have no chance to free original skb.

fix it by free orginal skb in eemtxfixup() first, then check skb clone status, if failed, return NULL to usbnet.

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
5.10.46-1

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
5.10.46-1

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
5.10.46-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}