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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2022-50499 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: media: dvb-core: Fix double free in dvb_register_device() In function dvb_register_device() -> dvb_register_media_device() -> dvb_create_media_entity(), dvb->entity is allocated and initialized. If the initialization fails, it frees the dvb->entity, and return an error code. The caller takes the error code and handles the error by calling dvb_media_device_free(), which unregisters the entity and frees the field again if it is not NULL. As dvb->entity may not NULLed in dvb_create_media_entity() when the allocation of dvbdev->pad fails, a double free may occur. This may also cause an Use After free in media_device_unregister_entity(). Fix this by storing NULL to dvb->entity when it is freed.


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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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/0588b12c418c3e4f927ced11f27b02ef4a5bfb07 kernel.org Patch 
https://git.kernel.org/stable/c/123eddf92a114e03919942641d2c2b1f4ca56ea6 kernel.org Patch 
https://git.kernel.org/stable/c/6b0d0477fce747d4137aa65856318b55fba72198 kernel.org Patch 
https://git.kernel.org/stable/c/70bc51303871159796b55ba1a8f16637b46c2511 kernel.org Patch 
https://git.kernel.org/stable/c/772892b29ac50c2c5e918fc80104aa6ede81d837 kernel.org Patch 
https://git.kernel.org/stable/c/7dd5a68cdbbbe7fc67ba701cb52ba10d8ba149f8 kernel.org Patch 
https://git.kernel.org/stable/c/acf984a3718c2458eb9e08b6714490a04f213c58 kernel.org Patch 
https://git.kernel.org/stable/c/b21f62b49ee9c3e0216d685d9cfd6003e5727271 kernel.org Patch 
https://git.kernel.org/stable/c/e9a78485b658361fab6a5547377be6c1af6f1b3d kernel.org Patch 

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

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Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2022-50499
NVD Published Date:
10/04/2025
NVD Last Modified:
01/22/2026
Source:
kernel.org