U.S. flag   An official website of the United States government
Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock (Dot gov) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2023-52439 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: uio: Fix use-after-free in uio_open core-1 core-2 ------------------------------------------------------- uio_unregister_device uio_open idev = idr_find() device_unregister(&idev->dev) put_device(&idev->dev) uio_device_release get_device(&idev->dev) kfree(idev) uio_free_minor(minor) uio_release put_device(&idev->dev) kfree(idev) ------------------------------------------------------- In the core-1 uio_unregister_device(), the device_unregister will kfree idev when the idev->dev kobject ref is 1. But after core-1 device_unregister, put_device and before doing kfree, the core-2 may get_device. Then: 1. After core-1 kfree idev, the core-2 will do use-after-free for idev. 2. When core-2 do uio_release and put_device, the idev will be double freed. To address this issue, we can get idev atomic & inc idev reference with minor_lock.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to [email protected].

URL Source(s) Tag(s)
https://git.kernel.org/stable/c/0c9ae0b8605078eafc3bea053cc78791e97ba2e2 CVE, kernel.org Patch 
https://git.kernel.org/stable/c/17a8519cb359c3b483fb5c7367efa9a8a508bdea CVE, kernel.org Patch 
https://git.kernel.org/stable/c/3174e0f7de1ba392dc191625da83df02d695b60c CVE, kernel.org Patch 
https://git.kernel.org/stable/c/35f102607054faafe78d2a6994b18d5d9d6e92ad CVE, kernel.org Patch 
https://git.kernel.org/stable/c/5cf604ee538ed0c467abe3b4cda5308a6398f0f7 CVE, kernel.org Patch 
https://git.kernel.org/stable/c/5e0be1229ae199ebb90b33102f74a0f22d152570 CVE, kernel.org Patch 
https://git.kernel.org/stable/c/913205930da6213305616ac539447702eaa85e41 CVE, kernel.org Patch 
https://git.kernel.org/stable/c/e93da893d52d82d57fc0db2ca566024e0f26ff50 CVE, kernel.org Patch 
https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html CVE
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html CVE
https://security.netapp.com/advisory/ntap-20241227-0006/ CVE

Weakness Enumeration

CWE-ID CWE Name Source
CWE-415 Double Free cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

9 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2023-52439
NVD Published Date:
02/20/2024
NVD Last Modified:
12/27/2024
Source:
kernel.org