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CVE-2022-50512
ext4: fix potential memory leak in ext4_fc_record_regions()
Description

In the Linux kernel, the following vulnerability has been resolved: ext4: fix potential memory leak in ext4_fc_record_regions() As krealloc may return NULL, in this case 'state->fc_regions' may not be freed by krealloc, but 'state->fc_regions' already set NULL. Then will lead to 'state->fc_regions' memory leak.

INFO

Published Date :

Oct. 7, 2025, 4:15 p.m.

Last Modified :

Oct. 8, 2025, 7:38 p.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products

The following products are affected by CVE-2022-50512 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.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Solution
Apply kernel patch to fix memory leak in ext4_fc_record_regions. Update system to resolve the issue.
  • Apply the provided Linux kernel patch.
  • Update the Linux kernel to a patched version.
  • Reboot the system after applying updates.
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-2022-50512.

URL Resource
https://git.kernel.org/stable/c/2cfb769d60a2a57eb3566765428b6131cd16dcfe
https://git.kernel.org/stable/c/417b0455a0b6d0f60a2930592731d1f8340e24be
https://git.kernel.org/stable/c/518566e71ad86b7c2f1bf6d9caee9588bb7ac158
https://git.kernel.org/stable/c/7069d105c1f15c442b68af43f7fde784f3126739
https://git.kernel.org/stable/c/a4058b869e6c5e517c79e30532a350d0f3115c3e
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2022-50512 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-2022-50512 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-2022-50512 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2022-50512 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

    Oct. 07, 2025

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: ext4: fix potential memory leak in ext4_fc_record_regions() As krealloc may return NULL, in this case 'state->fc_regions' may not be freed by krealloc, but 'state->fc_regions' already set NULL. Then will lead to 'state->fc_regions' memory leak.
    Added Reference https://git.kernel.org/stable/c/2cfb769d60a2a57eb3566765428b6131cd16dcfe
    Added Reference https://git.kernel.org/stable/c/417b0455a0b6d0f60a2930592731d1f8340e24be
    Added Reference https://git.kernel.org/stable/c/518566e71ad86b7c2f1bf6d9caee9588bb7ac158
    Added Reference https://git.kernel.org/stable/c/7069d105c1f15c442b68af43f7fde784f3126739
    Added Reference https://git.kernel.org/stable/c/a4058b869e6c5e517c79e30532a350d0f3115c3e
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
No CVSS metrics available for this vulnerability.