{"id":"CVE-2024-27020","revision":"27923412b72944a292d1f3addebd4a19","records":[{"revision":"27923412b72944a292d1f3addebd4a19","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2024-27020","aliases":[],"title":"netfilter: nf_tables: Fix potential data-race in __nft_expr_type_get()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: Fix potential data-race in __nft_expr_type_get()\n\nnft_unregister_expr() can concurrent with __nft_expr_type_get(),\nand there is not any protection when iterate over nf_tables_expressions\nlist in __nft_expr_type_get(). Therefore, there is potential data-race\nof nf_tables_expressions list entry.\n\nUse list_for_each_entry_rcu() to iterate over nf_tables_expressions\nlist in __nft_expr_type_get(), and use rcu_read_lock() in the caller\nnft_expr_type_get() to protect the entire type query process.","state":0,"publishedAt":"2024-05-01T05:30:15.908+00:00","modifiedAt":"2026-10-15T00:39:49.843+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"net/netfilter/nf_tables_api.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"ef1f7df9170dbd875ce198ba84e6ab80f6fc139e\",\n                            \"lessThan\": \"939109c0a8e2a006a6cc8209e262d25065f4403a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"ef1f7df9170dbd875ce198ba84e6ab80f6fc139e\",\n                            \"lessThan\": \"b38a133d37fa421c8447b383d788c9cc6f5cb34c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"ef1f7df9170dbd875ce198ba84e6ab80f6fc139e\",\n                            \"lessThan\": \"934e66e231cff2b18faa2c8aad0b8cec13957e05\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"ef1f7df9170dbd875ce198ba84e6ab80f6fc139e\",\n                            \"lessThan\": \"0b6de00206adbbfc6373b3ae38d2a6f197987907\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"ef1f7df9170dbd875ce198ba84e6ab80f6fc139e\",\n                            \"lessThan\": \"8d56bad42ac4c43c6c72ddd6a654a2628bf839c5\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"ef1f7df9170dbd875ce198ba84e6ab80f6fc139e\",\n                            \"lessThan\": \"a9ebf340d123ae12582210407f879d6a5a1bc25b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"ef1f7df9170dbd875ce198ba84e6ab80f6fc139e\",\n                            \"lessThan\": \"01f1a678b05ade4b1248019c2dcca773aebbeb7f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"ef1f7df9170dbd875ce198ba84e6ab80f6fc139e\",\n                            \"lessThan\": \"f969eb84ce482331a991079ab7a5c4dc3b7f89bf\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"net/netfilter/nf_tables_api.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3.13\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"3.13\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"4.19.313\",\n                            \"lessThanOrEqual\": \"4.19.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.4.275\",\n                            \"lessThanOrEqual\": \"5.4.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.216\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.157\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.88\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.29\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.8.8\",\n                            \"lessThanOrEqual\": \"6.8.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.9\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/939109c0a8e2a006a6cc8209e262d25065f4403a","https://git.kernel.org/stable/c/b38a133d37fa421c8447b383d788c9cc6f5cb34c","https://git.kernel.org/stable/c/934e66e231cff2b18faa2c8aad0b8cec13957e05","https://git.kernel.org/stable/c/0b6de00206adbbfc6373b3ae38d2a6f197987907","https://git.kernel.org/stable/c/8d56bad42ac4c43c6c72ddd6a654a2628bf839c5","https://git.kernel.org/stable/c/a9ebf340d123ae12582210407f879d6a5a1bc25b","https://git.kernel.org/stable/c/01f1a678b05ade4b1248019c2dcca773aebbeb7f","https://git.kernel.org/stable/c/f969eb84ce482331a991079ab7a5c4dc3b7f89bf"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2024-27020","license":"CVE Program Terms of Use","key":"cve-program:CVE-2024-27020","identifiers":["CVE-2024-27020"]},"retained":false,"historicalAffected":[]}],"coverage":[]}