{"id":"CVE-2024-39503","revision":"3eb3f92969294357ba8ef64a3105096d","records":[{"revision":"3eb3f92969294357ba8ef64a3105096d","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2024-39503","aliases":[],"title":"netfilter: ipset: Fix race between namespace cleanup and gc in the list:set type","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: ipset: Fix race between namespace cleanup and gc in the list:set type\n\nLion Ackermann reported that there is a race condition between namespace cleanup\nin ipset and the garbage collection of the list:set type. The namespace\ncleanup can destroy the list:set type of sets while the gc of the set type is\nwaiting to run in rcu cleanup. The latter uses data from the destroyed set which\nthus leads use after free. The patch contains the following parts:\n\n- When destroying all sets, first remove the garbage collectors, then wait\n  if needed and then destroy the sets.\n- Fix the badly ordered \"wait then remove gc\" for the destroy a single set\n  case.\n- Fix the missing rcu locking in the list:set type in the userspace test\n  case.\n- Use proper RCU list handlings in the list:set type.\n\nThe patch depends on c1193d9bbbd3 (netfilter: ipset: Add list flush to cancel_gc).","state":0,"publishedAt":"2024-07-12T12:20:36.299+00:00","modifiedAt":"2026-10-15T00:44:40.53+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/ipset/ip_set_core.c\",\n                        \"net/netfilter/ipset/ip_set_list_set.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"c7f2733e5011bfd136f1ca93497394d43aa76225\",\n                            \"lessThan\": \"c0761d1f1ce1d5b85b5e82bbb714df12de1aa8c3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"a24d5f2ac8ef702a58e55ec276aad29b4bd97e05\",\n                            \"lessThan\": \"93b53c202b51a69e42ca57f5a183f7e008e19f83\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c2dc077d8f722a1c73a24e674f925602ee5ece49\",\n                            \"lessThan\": \"0f1bb77c6d837c9513943bc7c08f04c5cc5c6568\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"653bc5e6d9995d7d5f497c665b321875a626161c\",\n                            \"lessThan\": \"390b353d1a1da3e9c6c0fd14fe650d69063c95d6\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"b93a6756a01f4fd2f329a39216f9824c56a66397\",\n                            \"lessThan\": \"2ba35b37f780c6410bb4bba9c3072596d8576702\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"97f7cf1cd80eeed3b7c808b7c12463295c751001\",\n                            \"lessThan\": \"90ae20d47de602198eb69e6cd7a3db3420abfc08\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"97f7cf1cd80eeed3b7c808b7c12463295c751001\",\n                            \"lessThan\": \"4e7aaa6b82d63e8ddcbfb56b4fd3d014ca586f10\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"970709a67696b100a57b33af1a3d75fc34b747eb\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5.4.269\",\n                            \"lessThan\": \"5.4.279\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.210\",\n                            \"lessThan\": \"5.10.221\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.149\",\n                            \"lessThan\": \"5.15.162\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.79\",\n                            \"lessThan\": \"6.1.95\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.18\",\n                            \"lessThan\": \"6.6.35\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.7.6\",\n                            \"lessThan\": \"6.8\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\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/ipset/ip_set_core.c\",\n                        \"net/netfilter/ipset/ip_set_list_set.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.8\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.8\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.4.279\",\n                            \"lessThanOrEqual\": \"5.4.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.221\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.162\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.95\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.35\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.9.6\",\n                            \"lessThanOrEqual\": \"6.9.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.10\",\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/c0761d1f1ce1d5b85b5e82bbb714df12de1aa8c3","https://git.kernel.org/stable/c/93b53c202b51a69e42ca57f5a183f7e008e19f83","https://git.kernel.org/stable/c/0f1bb77c6d837c9513943bc7c08f04c5cc5c6568","https://git.kernel.org/stable/c/390b353d1a1da3e9c6c0fd14fe650d69063c95d6","https://git.kernel.org/stable/c/2ba35b37f780c6410bb4bba9c3072596d8576702","https://git.kernel.org/stable/c/90ae20d47de602198eb69e6cd7a3db3420abfc08","https://git.kernel.org/stable/c/4e7aaa6b82d63e8ddcbfb56b4fd3d014ca586f10"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2024-39503","license":"CVE Program Terms of Use","key":"cve-program:CVE-2024-39503","identifiers":["CVE-2024-39503"]},"retained":false,"historicalAffected":[]}],"coverage":[]}