CVE-2022-49531
Linux Kernel Loop Device Use After Free (UAF)
Description
In the Linux kernel, the following vulnerability has been resolved: loop: implement ->free_disk Ensure that the lo_device which is stored in the gendisk private data is valid until the gendisk is freed. Currently the loop driver uses a lot of effort to make sure a device is not freed when it is still in use, but to to fix a potential deadlock this will be relaxed a bit soon.
INFO
Published Date :
Feb. 26, 2025, 7:01 a.m.
Last Modified :
March 17, 2025, 7:53 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
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-2022-49531.
| URL | Resource |
|---|---|
| https://git.kernel.org/stable/c/aadd1443aae7fe8956e3b11157827067f034406a | Patch |
| https://git.kernel.org/stable/c/d2c7f56f8b5256d57f9e3fc7794c31361d43bdd9 | Patch |
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-2022-49531 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-49531 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.
-
Initial Analysis by [email protected]
Mar. 17, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-667 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.18.3 Added Reference Type kernel.org: https://git.kernel.org/stable/c/aadd1443aae7fe8956e3b11157827067f034406a Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/d2c7f56f8b5256d57f9e3fc7794c31361d43bdd9 Types: Patch -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Feb. 26, 2025
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: loop: implement ->free_disk Ensure that the lo_device which is stored in the gendisk private data is valid until the gendisk is freed. Currently the loop driver uses a lot of effort to make sure a device is not freed when it is still in use, but to to fix a potential deadlock this will be relaxed a bit soon. Added Reference https://git.kernel.org/stable/c/aadd1443aae7fe8956e3b11157827067f034406a Added Reference https://git.kernel.org/stable/c/d2c7f56f8b5256d57f9e3fc7794c31361d43bdd9
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-49531 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-2022-49531
weaknesses.