CVEvulnerability

CVE-2024-27020

7.0 HIGH Published 2024-05-01 Modified 2026-10-15 Official page ↗
Status
Modified
Published
2024-05-01
Last modified
2026-10-15
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 ([email protected])
7.0 HIGH — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
7.0 HIGH — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-362

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.

Affected configurations

• linux linux kernel (>= 3.13 < 4.19.313) • linux linux kernel (>= 4.20 < 5.4.275) • linux linux kernel (>= 5.5 < 5.10.216) • linux linux kernel (>= 5.11 < 5.15.157) • linux linux kernel (>= 5.16 < 6.1.88) • linux linux kernel (>= 6.2 < 6.6.29) • linux linux kernel (>= 6.7 < 6.8.8) • linux linux kernel 6.9

Related

Weakness · CWE (1)

  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization weakness

References