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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities
NOTICE UPDATED - April, 25th 2024

NIST has updated the NVD program announcement page with additional information regarding recent concerns and the temporary delays in enrichment efforts.

CVE-2021-47179 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: NFSv4: Fix a NULL pointer dereference in pnfs_mark_matching_lsegs_return() Commit de144ff4234f changes _pnfs_return_layout() to call pnfs_mark_matching_lsegs_return() passing NULL as the struct pnfs_layout_range argument. Unfortunately, pnfs_mark_matching_lsegs_return() doesn't check if we have a value here before dereferencing it, causing an oops. I'm able to hit this crash consistently when running connectathon basic tests on NFS v4.1/v4.2 against Ontap.


Severity

 


CVSS 4.0 Severity and Metrics:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have not published a CVSS score for this CVE at this time. NVD Analysts use publicly available information at the time of analysis to associate CVSS vector strings.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://git.kernel.org/stable/c/39785761feadf261bc5101372b0b0bbaf6a94494 Patch 
https://git.kernel.org/stable/c/42637ca25c7d7b5a92804a679af5192e8c1a9f48 Patch 
https://git.kernel.org/stable/c/4e1ba532dbc1a0e19fc2458d74ab8d98680c4e42 Patch 
https://git.kernel.org/stable/c/a421d218603ffa822a0b8045055c03eae394a7eb Patch 
https://git.kernel.org/stable/c/aba3c7795f51717ae316f3566442dee7cc3eeccb Patch 
https://git.kernel.org/stable/c/b090d110e66636bca473fd8b98d5c97b555a965a Patch 
https://git.kernel.org/stable/c/f9890652185b72b8de9ebeb4406037640b6e1b53 Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-476 NULL Pointer Dereference cwe source acceptance level NIST  

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Change History

5 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-47179
NVD Published Date:
03/25/2024
NVD Last Modified:
05/16/2024
Source:
kernel.org