CVE-2021-47239

Source
https://nvd.nist.gov/vuln/detail/CVE-2021-47239
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-47239.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-47239
Related
Published
2024-05-21T15:15:13Z
Modified
2024-09-18T01:00:22Z
Summary
[none]
Details

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

net: usb: fix possible use-after-free in smsc75xx_bind

The commit 46a8b29c6306 ("net: usb: fix memory leak in smsc75xxbind") fails to clean up the work scheduled in smsc75xxreset-> smsc75xxsetmulticast, which leads to use-after-free if the work is scheduled to start after the deallocation. In addition, this patch also removes a dangling pointer - dev->data[0].

This patch calls cancelworksync to cancel the scheduled work and set the dangling pointer to NULL.

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"
}