CVE-2022-50767
fbdev: smscufx: Fix several use-after-free bugs
Description
In the Linux kernel, the following vulnerability has been resolved: fbdev: smscufx: Fix several use-after-free bugs Several types of UAFs can occur when physically removing a USB device. Adds ufx_ops_destroy() function to .fb_destroy of fb_ops, and in this function, there is kref_put() that finally calls ufx_free(). This fix prevents multiple UAFs.
INFO
Published Date :
Dec. 24, 2025, 1:16 p.m.
Last Modified :
Dec. 24, 2025, 1:16 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2022-50767
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update the Linux kernel to include the smscufx driver fix.
- Ensure the fbdev module is correctly configured.
- Test USB device removal scenarios.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2022-50767.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-50767 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-50767
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-50767 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-50767 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Dec. 24, 2025
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: fbdev: smscufx: Fix several use-after-free bugs Several types of UAFs can occur when physically removing a USB device. Adds ufx_ops_destroy() function to .fb_destroy of fb_ops, and in this function, there is kref_put() that finally calls ufx_free(). This fix prevents multiple UAFs. Added Reference https://git.kernel.org/stable/c/3f40852d671072836fb7ae331a1f28a24223c4e8 Added Reference https://git.kernel.org/stable/c/5385af2f89bc352fb70753ab41b2bb036190141f Added Reference https://git.kernel.org/stable/c/6f2075ea883e5d7730d0c9ebb1bb8e7a1a7e953f Added Reference https://git.kernel.org/stable/c/70faf9d9b6cc74418716bbf76fe75bd2da10ad4a Added Reference https://git.kernel.org/stable/c/8d924b262f3178a9b17c17d4306a9f426c508bd9 Added Reference https://git.kernel.org/stable/c/cc67482c9e5f2c80d62f623bcc347c29f9f648e1 Added Reference https://git.kernel.org/stable/c/cc6a7249842fceda7574ceb63275a2d5e99d2862 Added Reference https://git.kernel.org/stable/c/d9ddfeb01fb95ffbbc7031d46a5ee2a5e45cbb86