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Oracle Linux: CVE-2024-27020: ELSA-2024-5101: kernel security update (IMPORTANT) (Multiple Advisories)

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Oracle Linux: CVE-2024-27020: ELSA-2024-5101: kernel security update (IMPORTANT) (Multiple Advisories)

Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
05/01/2024
Created
08/20/2024
Added
10/16/2024
Modified
10/17/2024

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.

Solution(s)

  • oracle-linux-upgrade-kernel

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