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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2021-47670 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: can: peak_usb: fix use after free bugs After calling peak_usb_netif_rx_ni(skb), dereferencing skb is unsafe. Especially, the can_frame cf which aliases skb memory is accessed after the peak_usb_netif_rx_ni(). Reordering the lines solves the issue.


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/50aca891d7a554db0901b245167cd653d73aaa71 Patch 
https://git.kernel.org/stable/c/5408824636fa0dfedb9ecb0d94abd573131bfbbe Patch 
https://git.kernel.org/stable/c/ddd1416f44130377798c1430b76503513b7497c2 Patch 
https://git.kernel.org/stable/c/ec939c13c3fff2114479769c8380b7f1a54feca9 Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-416 Use After Free 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-2021-47670
NVD Published Date:
04/17/2025
NVD Last Modified:
04/21/2025
Source:
kernel.org