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CVE-2024-27020 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: Fix potential data-race in __nft_expr_type_get() nft_unregister_expr() can concurrent with __nft_expr_type_get(), and there is not any protection when iterate over nf_tables_expressions list in __nft_expr_type_get(). Therefore, there is potential data-race of nf_tables_expressions list entry. Use list_for_each_entry_rcu() to iterate over nf_tables_expressions list in __nft_expr_type_get(), and use rcu_read_lock() in the caller nft_expr_type_get() to protect the entire type query process.


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/01f1a678b05ade4b1248019c2dcca773aebbeb7f Patch 
https://git.kernel.org/stable/c/0b6de00206adbbfc6373b3ae38d2a6f197987907 Patch 
https://git.kernel.org/stable/c/8d56bad42ac4c43c6c72ddd6a654a2628bf839c5 Patch 
https://git.kernel.org/stable/c/934e66e231cff2b18faa2c8aad0b8cec13957e05 Patch 
https://git.kernel.org/stable/c/939109c0a8e2a006a6cc8209e262d25065f4403a Patch 
https://git.kernel.org/stable/c/a9ebf340d123ae12582210407f879d6a5a1bc25b Patch 
https://git.kernel.org/stable/c/b38a133d37fa421c8447b383d788c9cc6f5cb34c Patch 
https://git.kernel.org/stable/c/f969eb84ce482331a991079ab7a5c4dc3b7f89bf Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

6 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2024-27020
NVD Published Date:
05/01/2024
NVD Last Modified:
05/23/2024
Source:
kernel.org