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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2023-52445 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: media: pvrusb2: fix use after free on context disconnection Upon module load, a kthread is created targeting the pvr2_context_thread_func function, which may call pvr2_context_destroy and thus call kfree() on the context object. However, that might happen before the usb hub_event handler is able to notify the driver. This patch adds a sanity check before the invalid read reported by syzbot, within the context disconnection call stack.


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

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Hyperlink Resource
https://git.kernel.org/stable/c/2cf0005d315549b8d2b940ff96a66c2a889aa795 Patch 
https://git.kernel.org/stable/c/30773ea47d41773f9611ffb4ebc9bda9d19a9e7e Patch 
https://git.kernel.org/stable/c/3233d8bf7893550045682192cb227af7fa3defeb Patch 
https://git.kernel.org/stable/c/437b5f57732bb4cc32cc9f8895d2010ee9ff521c Patch 
https://git.kernel.org/stable/c/47aa8fcd5e8b5563af4042a00f25ba89bef8f33d Patch 
https://git.kernel.org/stable/c/ded85b0c0edd8f45fec88783d7555a5b982449c1 Patch 
https://git.kernel.org/stable/c/ec3634ebe23fc3c44ebc67c6d25917300bc68c08 Patch 
https://git.kernel.org/stable/c/ec36c134dd020d28e312c2f1766f85525e747aab Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-416 Use After Free cwe source acceptance level NIST  

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Change History

7 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2023-52445
NVD Published Date:
02/22/2024
NVD Last Modified:
11/04/2024
Source:
kernel.org