CVE-2022-50245
rapidio: fix possible UAF when kfifo_alloc() fails
Description
In the Linux kernel, the following vulnerability has been resolved: rapidio: fix possible UAF when kfifo_alloc() fails If kfifo_alloc() fails in mport_cdev_open(), goto err_fifo and just free priv. But priv is still in the chdev->file_list, then list traversal may cause UAF. This fixes the following smatch warning: drivers/rapidio/devices/rio_mport_cdev.c:1930 mport_cdev_open() warn: '&priv->list' not removed from list
INFO
Published Date :
Sept. 15, 2025, 2:15 p.m.
Last Modified :
Sept. 15, 2025, 3:21 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2022-50245
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
- Ensure private data is removed from the list before freeing.
- Apply the provided kernel patch.
- Recompile and install the Linux kernel.
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-2022-50245.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-50245 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-2022-50245
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-2022-50245 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-50245 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
Sep. 15, 2025
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: rapidio: fix possible UAF when kfifo_alloc() fails If kfifo_alloc() fails in mport_cdev_open(), goto err_fifo and just free priv. But priv is still in the chdev->file_list, then list traversal may cause UAF. This fixes the following smatch warning: drivers/rapidio/devices/rio_mport_cdev.c:1930 mport_cdev_open() warn: '&priv->list' not removed from list Added Reference https://git.kernel.org/stable/c/02d7d89f816951e0862147d751b1150d67aaebdd Added Reference https://git.kernel.org/stable/c/2a6c75adf8192f07ddcdd4a1a13488c890a73919 Added Reference https://git.kernel.org/stable/c/2ba06e57f933f0eac242e8b389433da1cc00d4d5 Added Reference https://git.kernel.org/stable/c/2dfd60724d271a6ab99f93f40f38f2ced1ddbb87 Added Reference https://git.kernel.org/stable/c/2f5cc7fd73fd6253cc71214f0dd499cc62feb469 Added Reference https://git.kernel.org/stable/c/311b488405ac45af46756b1c8f1d27007b68b07e Added Reference https://git.kernel.org/stable/c/5ee850645e42f541ce1ea8130c2b27cc495f965c Added Reference https://git.kernel.org/stable/c/a253dde0403a153075ffb254f6f7b2635e49e97a Added Reference https://git.kernel.org/stable/c/cb87af2c19c0993f6e21f75b963a5599c5a73e76