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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2021-47668 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: can: dev: can_restart: fix use after free bug After calling netif_rx_ni(skb), dereferencing skb is unsafe. Especially, the can_frame cf which aliases skb memory is accessed after the netif_rx_ni() in: stats->rx_bytes += cf->len; 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/03f16c5075b22c8902d2af739969e878b0879c94 Patch 
https://git.kernel.org/stable/c/08ab951787098ae0b6c0364aeea7a8138226f234 Patch 
https://git.kernel.org/stable/c/260925a0b7d2da5449f8ecfd02c1405e0c8a45b8 Patch 
https://git.kernel.org/stable/c/593c072b7b3c4d7044416eb039d9ad706bedd67a Patch 
https://git.kernel.org/stable/c/92668d28c7e6a7a2ba07df287669ffcdf650c421 Patch 
https://git.kernel.org/stable/c/ac48ef15826e83f4206c47add61072e8fc76d328 Patch 
https://git.kernel.org/stable/c/bbc6847b9b8978b520f62fbc7c68c54ef0f8d282 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-2021-47668
NVD Published Date:
04/17/2025
NVD Last Modified:
04/21/2025
Source:
kernel.org