CVE-2022-50402
drivers/md/md-bitmap: check the return value of md_bitmap_get_counter()
Description
In the Linux kernel, the following vulnerability has been resolved: drivers/md/md-bitmap: check the return value of md_bitmap_get_counter() Check the return value of md_bitmap_get_counter() in case it returns NULL pointer, which will result in a null pointer dereference. v2: update the check to include other dereference
INFO
Published Date :
Sept. 18, 2025, 4:15 p.m.
Last Modified :
Sept. 18, 2025, 4:15 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2022-50402
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 a patched version.
- Apply the specific fix for md_bitmap_get_counter().
- Verify the return value of md_bitmap_get_counter().
- Ensure null pointers are handled correctly.
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-2022-50402.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-50402 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-2022-50402
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-2022-50402 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-50402 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.
-
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Sep. 18, 2025
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: drivers/md/md-bitmap: check the return value of md_bitmap_get_counter() Check the return value of md_bitmap_get_counter() in case it returns NULL pointer, which will result in a null pointer dereference. v2: update the check to include other dereference Added Reference https://git.kernel.org/stable/c/100caacfa0ed26e061954c90cdc835d42f709536 Added Reference https://git.kernel.org/stable/c/21e9aac9a74d30907d44bae0d24c036cb3819406 Added Reference https://git.kernel.org/stable/c/3bd548e5b819b8c0f2c9085de775c5c7bff9052f Added Reference https://git.kernel.org/stable/c/5d8d046f3dba939e74e2414f009df426700430ed Added Reference https://git.kernel.org/stable/c/99bef41f8e8d1d52b5cb34f2f193f1346192752b Added Reference https://git.kernel.org/stable/c/b621d17fe8b079574c773800148fb86907f3445d Added Reference https://git.kernel.org/stable/c/ff3b7e12bc9f50de05c9d82b5b79e23e5be888f1