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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2024-27020

netfilter: nf_tables: Fix potential data-race in __nft_expr_type_get()

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Status
Published
Published
Updated
Assigning organization
Linux

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • ef1f7df9170dbd875ce198ba84e6ab80f6fc139e to < 939109c0a8e2a006a6cc8209e262d25065f4403aaffected
  • ef1f7df9170dbd875ce198ba84e6ab80f6fc139e to < b38a133d37fa421c8447b383d788c9cc6f5cb34caffected
  • ef1f7df9170dbd875ce198ba84e6ab80f6fc139e to < 934e66e231cff2b18faa2c8aad0b8cec13957e05affected
  • ef1f7df9170dbd875ce198ba84e6ab80f6fc139e to < 0b6de00206adbbfc6373b3ae38d2a6f197987907affected
  • ef1f7df9170dbd875ce198ba84e6ab80f6fc139e to < 8d56bad42ac4c43c6c72ddd6a654a2628bf839c5affected
  • ef1f7df9170dbd875ce198ba84e6ab80f6fc139e to < a9ebf340d123ae12582210407f879d6a5a1bc25baffected
  • ef1f7df9170dbd875ce198ba84e6ab80f6fc139e to < 01f1a678b05ade4b1248019c2dcca773aebbeb7faffected
  • ef1f7df9170dbd875ce198ba84e6ab80f6fc139e to < f969eb84ce482331a991079ab7a5c4dc3b7f89bfaffected

Linux Linux

Default version status: affected

  • 3.13affected
  • 0 to < 3.13unaffected
  • 4.19.313 to ≤ 4.19.*unaffected
  • 5.4.275 to ≤ 5.4.*unaffected
  • 5.10.216 to ≤ 5.10.*unaffected
  • 5.15.157 to ≤ 5.15.*unaffected
  • 6.1.88 to ≤ 6.1.*unaffected
  • 6.6.29 to ≤ 6.6.*unaffected
  • 6.8.8 to ≤ 6.8.*unaffected
  • 6.9 to ≤ *unaffected

References