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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2023-53219 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: media: netup_unidvb: fix use-after-free at del_timer() When Universal DVB card is detaching, netup_unidvb_dma_fini() uses del_timer() to stop dma->timeout timer. But when timer handler netup_unidvb_dma_timeout() is running, del_timer() could not stop it. As a result, the use-after-free bug could happen. The process is shown below: (cleanup routine) | (timer routine) | mod_timer(&dev->tx_sim_timer, ..) netup_unidvb_finidev() | (wait a time) netup_unidvb_dma_fini() | netup_unidvb_dma_timeout() del_timer(&dma->timeout); | | ndev->pci_dev->dev //USE Fix by changing del_timer() to del_timer_sync().


Metrics

 
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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/051af3f0b7d1cd8ab7f3e2523ad8ae1af44caba3 kernel.org Patch 
https://git.kernel.org/stable/c/07821524f67bf920342bc84ae8b3dea2a315a89e kernel.org Patch 
https://git.kernel.org/stable/c/0f5bb36bf9b39a2a96e730bf4455095b50713f63 kernel.org Patch 
https://git.kernel.org/stable/c/1550bcf2983ae1220cc8ab899a39a423fa7cb523 kernel.org Patch 
https://git.kernel.org/stable/c/90229e9ee957d4514425e4a4d82c50ab5d57ac4d kernel.org Patch 
https://git.kernel.org/stable/c/c8f9c05e1ebcc9c7bc211cc8b74d8fb86a8756fc kernel.org Patch 
https://git.kernel.org/stable/c/dd5c77814f290b353917df329f36de1472d47154 kernel.org Patch 
https://git.kernel.org/stable/c/f9982db735a8495eee14267cf193c806b957e942 kernel.org Patch 

Weakness Enumeration

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

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2023-53219
NVD Published Date:
09/15/2025
NVD Last Modified:
01/14/2026
Source:
kernel.org