{"id":"CVE-2026-97998","revision":"9a6dd2ecbf7845a898fd0b3b391c002d","records":[{"revision":"9a6dd2ecbf7845a898fd0b3b391c002d","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-97998","aliases":[],"title":"netfilter: nfnetlink_log: cope with concurrent instance destruction","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nfnetlink_log: cope with concurrent instance destruction\n\nInstances are refcounted. However, only memory release happens on the\n1 -> 0 transition; the unlink from hashes can occur with any refcount.\n\nUncooperative userspace can force a situation where a queue is pending\nfor destruction from netlink event while a different socket with same\nportid processes an UNBIND request.\n\nWith right timing, this will unhash the instance again:\n\nOops: general protection fault, [..]\nCall Trace:\n <TASK>\n nfulnl_recv_config+0x31a/0xd50\n nfnetlink_rcv_msg+0x7c2/0xeb0","state":0,"publishedAt":"2026-09-25T10:23:28.074+00:00","modifiedAt":"2026-10-19T09:12:05.094+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/nfnetlink_log.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"0597f2680d666a3bcf101ac0c771ba7e50016bbd\",\n                            \"lessThan\": \"c5c89beaa628d6ac527c6eb2e01b2b52eb417f59\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0597f2680d666a3bcf101ac0c771ba7e50016bbd\",\n                            \"lessThan\": \"042465e7d3d3127e21f04e42c1639e2518b98915\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0597f2680d666a3bcf101ac0c771ba7e50016bbd\",\n                            \"lessThan\": \"291685fc8d2e4cf75ed3a23c810883653f407f46\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0597f2680d666a3bcf101ac0c771ba7e50016bbd\",\n                            \"lessThan\": \"3161186a2ff81288e9a5f35daf1911153764ecae\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0597f2680d666a3bcf101ac0c771ba7e50016bbd\",\n                            \"lessThan\": \"0234d7ca0317be0a623300e1693cd794bbfdf8af\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0597f2680d666a3bcf101ac0c771ba7e50016bbd\",\n                            \"lessThan\": \"1a7a8ac9a9f0ad0d410c901cb6f233833518844c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0597f2680d666a3bcf101ac0c771ba7e50016bbd\",\n                            \"lessThan\": \"e2dd0f1f8c4e6334699ea6382e52f6da0c7e45eb\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0597f2680d666a3bcf101ac0c771ba7e50016bbd\",\n                            \"lessThan\": \"387d744fa7e499d2c3748a4e60e02ebb24e7fb16\",\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/nfnetlink_log.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"2.6.14\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"2.6.14\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.271\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.222\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.189\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.158\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.111\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.53\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.7\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/c5c89beaa628d6ac527c6eb2e01b2b52eb417f59","https://git.kernel.org/stable/c/042465e7d3d3127e21f04e42c1639e2518b98915","https://git.kernel.org/stable/c/291685fc8d2e4cf75ed3a23c810883653f407f46","https://git.kernel.org/stable/c/3161186a2ff81288e9a5f35daf1911153764ecae","https://git.kernel.org/stable/c/0234d7ca0317be0a623300e1693cd794bbfdf8af","https://git.kernel.org/stable/c/1a7a8ac9a9f0ad0d410c901cb6f233833518844c","https://git.kernel.org/stable/c/e2dd0f1f8c4e6334699ea6382e52f6da0c7e45eb","https://git.kernel.org/stable/c/387d744fa7e499d2c3748a4e60e02ebb24e7fb16"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-97998","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-97998","identifiers":["CVE-2026-97998"]},"retained":false,"historicalAffected":[]}],"coverage":[]}