PT-2025-26146 · Linux+2 · Linux Kernel+2
Published
2022-06-24
·
Updated
2025-07-28
·
CVE-2022-50220
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A use-after-free issue has been identified in the Linux kernel's usbnet component. This issue arises when the
usbnet deferred kevent() work is awaited after the unregister netdev() call, potentially causing netif carrier {on,off}() to operate on an unregistered netdev and linkwatch event() to run after free netdev(). The problem originated from a change made in 2003 to prevent a deadlock, but it introduced the use-after-free issue in USB Ethernet drivers.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Linux Kernel
Suse