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CVE-2022-50074
Linux Kernel AppArmor Memory Leak Vulnerability
Description

In the Linux kernel, the following vulnerability has been resolved: apparmor: Fix memleak in aa_simple_write_to_buffer() When copy_from_user failed, the memory is freed by kvfree. however the management struct and data blob are allocated independently, so only kvfree(data) cause a memleak issue here. Use aa_put_loaddata(data) to fix this issue.

INFO

Published Date :

June 18, 2025, 11:15 a.m.

Last Modified :

June 18, 2025, 1:47 p.m.

Remotely Exploit :

No

Source :

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

The following products are affected by CVE-2022-50074 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
Address memory leak in AppArmor by correctly freeing allocated memory.
  • Update the Linux kernel to a patched version.
  • Ensure proper memory management in AppArmor functions.
  • Apply the fix for aa_simple_write_to_buffer memory leak.
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-2022-50074.

URL Resource
https://git.kernel.org/stable/c/417ea9fe972d2654a268ad66e89c8fcae67017c3
https://git.kernel.org/stable/c/6500eb3a48ac221051b1791818a1ac74744ef617
https://git.kernel.org/stable/c/6583edbf459de2e06b9759f264c0ae27e452b97a
https://git.kernel.org/stable/c/7db182a2ebeefded86fea542fcc5d6a68bb77f58
https://git.kernel.org/stable/c/8aab4295582eb397a125d2788b829fa62b88dbf7
https://git.kernel.org/stable/c/bf7ebebce2c25071c719fd8a2f1307e0c243c2d7
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2022-50074 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-2022-50074 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-2022-50074 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-2022-50074 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

    Jun. 18, 2025

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: apparmor: Fix memleak in aa_simple_write_to_buffer() When copy_from_user failed, the memory is freed by kvfree. however the management struct and data blob are allocated independently, so only kvfree(data) cause a memleak issue here. Use aa_put_loaddata(data) to fix this issue.
    Added Reference https://git.kernel.org/stable/c/417ea9fe972d2654a268ad66e89c8fcae67017c3
    Added Reference https://git.kernel.org/stable/c/6500eb3a48ac221051b1791818a1ac74744ef617
    Added Reference https://git.kernel.org/stable/c/6583edbf459de2e06b9759f264c0ae27e452b97a
    Added Reference https://git.kernel.org/stable/c/7db182a2ebeefded86fea542fcc5d6a68bb77f58
    Added Reference https://git.kernel.org/stable/c/8aab4295582eb397a125d2788b829fa62b88dbf7
    Added Reference https://git.kernel.org/stable/c/bf7ebebce2c25071c719fd8a2f1307e0c243c2d7
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.