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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2021-47642 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: video: fbdev: nvidiafb: Use strscpy() to prevent buffer overflow Coverity complains of a possible buffer overflow. However, given the 'static' scope of nvidia_setup_i2c_bus() it looks like that can't happen after examiniing the call sites. CID 19036 (#1 of 1): Copy into fixed size buffer (STRING_OVERFLOW) 1. fixed_size_dest: You might overrun the 48-character fixed-size string chan->adapter.name by copying name without checking the length. 2. parameter_as_source: Note: This defect has an elevated risk because the source argument is a parameter of the current function. 89 strcpy(chan->adapter.name, name); Fix this warning by using strscpy() which will silence the warning and prevent any future buffer overflows should the names used to identify the channel become much longer.


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/055cdd2e7b992921424d4daaa285ced787fb205f kernel.org Patch 
https://git.kernel.org/stable/c/08dff482012758935c185532b1ad7d584785a86e kernel.org Patch 
https://git.kernel.org/stable/c/37a1a2e6eeeb101285cd34e12e48a881524701aa kernel.org Patch 
https://git.kernel.org/stable/c/41baa86b6c802cdc6ab8ff2d46c083c9be93de81 kernel.org Patch 
https://git.kernel.org/stable/c/47e5533adf118afaf06d25a3e2aaaab89371b1c5 kernel.org Patch 
https://git.kernel.org/stable/c/580e5d3815474b8349250c25c16416585a72c7fe kernel.org Patch 
https://git.kernel.org/stable/c/6a5226e544ac043bb2d8dc1bfe8920d02282f7cd kernel.org Patch 
https://git.kernel.org/stable/c/72dd5c46a152136712a55bf026a9aa8c1b12b60d kernel.org Patch 
https://git.kernel.org/stable/c/9ff2f7294ab0f011cd4d1b7dcd9a07d8fdf72834 kernel.org Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-787 Out-of-bounds Write 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-2021-47642
NVD Published Date:
02/26/2025
NVD Last Modified:
09/23/2025
Source:
kernel.org