How severe is CVE-2024-27020?

This vulnerability has a severity rating of HIGH with a CVSS score of 7 out of 10.

What type of vulnerability is CVE-2024-27020?

This is classified as CWE-362, which is a common weakness in software security.

CVE-2024-27020 - HIGH Severity | CVSS 7

Vulnerability 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.

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