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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2021-47239 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: net: usb: fix possible use-after-free in smsc75xx_bind The commit 46a8b29c6306 ("net: usb: fix memory leak in smsc75xx_bind") fails to clean up the work scheduled in smsc75xx_reset-> smsc75xx_set_multicast, which leads to use-after-free if the work is scheduled to start after the deallocation. In addition, this patch also removes a dangling pointer - dev->data[0]. This patch calls cancel_work_sync to cancel the scheduled work and set the dangling pointer to NULL.


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/14616c372a7be01a2fb8c56c9d8debd232b9e43d Patch 
https://git.kernel.org/stable/c/14616c372a7be01a2fb8c56c9d8debd232b9e43d Patch 
https://git.kernel.org/stable/c/2fc8300c9cfa5167fcb5b1a2a07db6f53e82f59b Patch 
https://git.kernel.org/stable/c/2fc8300c9cfa5167fcb5b1a2a07db6f53e82f59b Patch 
https://git.kernel.org/stable/c/4252bf6c2b245f47011098113d405ffad6ad5d5b Patch 
https://git.kernel.org/stable/c/4252bf6c2b245f47011098113d405ffad6ad5d5b Patch 
https://git.kernel.org/stable/c/56b786d86694e079d8aad9b314e015cd4ac02a3d Patch 
https://git.kernel.org/stable/c/56b786d86694e079d8aad9b314e015cd4ac02a3d Patch 
https://git.kernel.org/stable/c/570a52cf3e01d19f7fd1a251dfc52b0cd86c13cb Patch 
https://git.kernel.org/stable/c/570a52cf3e01d19f7fd1a251dfc52b0cd86c13cb Patch 
https://git.kernel.org/stable/c/64160d1741a3de5204d1a822e058e0b4cc526504 Patch 
https://git.kernel.org/stable/c/64160d1741a3de5204d1a822e058e0b4cc526504 Patch 
https://git.kernel.org/stable/c/7cc8b2e05fcea6edd022d26e82091d781af8fd9b Patch 
https://git.kernel.org/stable/c/7cc8b2e05fcea6edd022d26e82091d781af8fd9b Patch 
https://git.kernel.org/stable/c/c4e3be2e7742863e454ce31faf8fd0109c00050b Patch 
https://git.kernel.org/stable/c/c4e3be2e7742863e454ce31faf8fd0109c00050b Patch 

Weakness Enumeration

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

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Change History

4 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-47239
NVD Published Date:
05/21/2024
NVD Last Modified:
12/30/2024
Source:
kernel.org