CVE-2026-97998

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-97998", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:18:58.209Z", "datePublished": "2026-09-25T10:23:28.074Z", "dateUpdated": "2026-10-19T09:12:05.094Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:12:05.094Z"}, "descriptions": [{"lang": "en", "value": "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"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/netfilter/nfnetlink_log.c"], "versions": [{"version": "0597f2680d666a3bcf101ac0c771ba7e50016bbd", "lessThan": "c5c89beaa628d6ac527c6eb2e01b2b52eb417f59", "status": "affected", "versionType": "git"}, {"version": "0597f2680d666a3bcf101ac0c771ba7e50016bbd", "lessThan": "042465e7d3d3127e21f04e42c1639e2518b98915", "status": "affected", "versionType": "git"}, {"version": "0597f2680d666a3bcf101ac0c771ba7e50016bbd", "lessThan": "291685fc8d2e4cf75ed3a23c810883653f407f46", "status": "affected", "versionType": "git"}, {"version": "0597f2680d666a3bcf101ac0c771ba7e50016bbd", "lessThan": "3161186a2ff81288e9a5f35daf1911153764ecae", "status": "affected", "versionType": "git"}, {"version": "0597f2680d666a3bcf101ac0c771ba7e50016bbd", "lessThan": "0234d7ca0317be0a623300e1693cd794bbfdf8af", "status": "affected", "versionType": "git"}, {"version": "0597f2680d666a3bcf101ac0c771ba7e50016bbd", "lessThan": "1a7a8ac9a9f0ad0d410c901cb6f233833518844c", "status": "affected", "versionType": "git"}, {"version": "0597f2680d666a3bcf101ac0c771ba7e50016bbd", "lessThan": "e2dd0f1f8c4e6334699ea6382e52f6da0c7e45eb", "status": "affected", "versionType": "git"}, {"version": "0597f2680d666a3bcf101ac0c771ba7e50016bbd", "lessThan": "387d744fa7e499d2c3748a4e60e02ebb24e7fb16", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/netfilter/nfnetlink_log.c"], "versions": [{"version": "2.6.14", "status": "affected"}, {"version": "0", "lessThan": "2.6.14", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.271", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.222", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.189", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.158", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.111", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.53", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.7", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.14", "versionEndExcluding": "5.10.271"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.14", "versionEndExcluding": "5.15.222"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.14", "versionEndExcluding": "6.1.189"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.14", "versionEndExcluding": "6.6.158"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.14", "versionEndExcluding": "6.12.111"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.14", "versionEndExcluding": "6.18.53"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.14", "versionEndExcluding": "7.2.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.14", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/c5c89beaa628d6ac527c6eb2e01b2b52eb417f59"}, {"url": "https://git.kernel.org/stable/c/042465e7d3d3127e21f04e42c1639e2518b98915"}, {"url": "https://git.kernel.org/stable/c/291685fc8d2e4cf75ed3a23c810883653f407f46"}, {"url": "https://git.kernel.org/stable/c/3161186a2ff81288e9a5f35daf1911153764ecae"}, {"url": "https://git.kernel.org/stable/c/0234d7ca0317be0a623300e1693cd794bbfdf8af"}, {"url": "https://git.kernel.org/stable/c/1a7a8ac9a9f0ad0d410c901cb6f233833518844c"}, {"url": "https://git.kernel.org/stable/c/e2dd0f1f8c4e6334699ea6382e52f6da0c7e45eb"}, {"url": "https://git.kernel.org/stable/c/387d744fa7e499d2c3748a4e60e02ebb24e7fb16"}], "title": "netfilter: nfnetlink_log: cope with concurrent instance destruction", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/netfilter/nfnetlink_log.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "c5c89beaa628d6ac527c6eb2e01b2b52eb417f59", "status": "affected", "version": "0597f2680d666a3bcf101ac0c771ba7e50016bbd", "versionType": "git"}, {"lessThan": "042465e7d3d3127e21f04e42c1639e2518b98915", "status": "affected", "version": "0597f2680d666a3bcf101ac0c771ba7e50016bbd", "versionType": "git"}, {"lessThan": "291685fc8d2e4cf75ed3a23c810883653f407f46", "status": "affected", "version": "0597f2680d666a3bcf101ac0c771ba7e50016bbd", "versionType": "git"}, {"lessThan": "3161186a2ff81288e9a5f35daf1911153764ecae", "status": "affected", "version": "0597f2680d666a3bcf101ac0c771ba7e50016bbd", "versionType": "git"}, {"lessThan": "0234d7ca0317be0a623300e1693cd794bbfdf8af", "status": "affected", "version": "0597f2680d666a3bcf101ac0c771ba7e50016bbd", "versionType": "git"}, {"lessThan": "1a7a8ac9a9f0ad0d410c901cb6f233833518844c", "status": "affected", "version": "0597f2680d666a3bcf101ac0c771ba7e50016bbd", "versionType": "git"}, {"lessThan": "e2dd0f1f8c4e6334699ea6382e52f6da0c7e45eb", "status": "affected", "version": "0597f2680d666a3bcf101ac0c771ba7e50016bbd", "versionType": "git"}, {"lessThan": "387d744fa7e499d2c3748a4e60e02ebb24e7fb16", "status": "affected", "version": "0597f2680d666a3bcf101ac0c771ba7e50016bbd", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/netfilter/nfnetlink_log.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "2.6.14"}, {"lessThan": "2.6.14", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.271", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.222", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.189", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.158", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.111", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.53", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.7", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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"}], "id": "CVE-2026-97998", "lastModified": "2026-10-19T10:17:51.280", "metrics": {}, "published": "2026-09-25T11:17:28.107", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0234d7ca0317be0a623300e1693cd794bbfdf8af"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/042465e7d3d3127e21f04e42c1639e2518b98915"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1a7a8ac9a9f0ad0d410c901cb6f233833518844c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/291685fc8d2e4cf75ed3a23c810883653f407f46"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3161186a2ff81288e9a5f35daf1911153764ecae"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/387d744fa7e499d2c3748a4e60e02ebb24e7fb16"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c5c89beaa628d6ac527c6eb2e01b2b52eb417f59"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e2dd0f1f8c4e6334699ea6382e52f6da0c7e45eb"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: netfilter: nfnetlink_log: cope with concurrent instance destruction", "id": "2541175", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2541175"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-366", "details": ["A flaw was found in the Linux kernel's netfilter subsystem. A race condition in the nfnetlink_log packet logging component allows a local user to trigger concurrent instance destruction by issuing an unbind request while a queue destruction event is pending. This issue leads to an invalid memory operation, causing a general protection fault and resulting in a Denial of Service (DoS) via a system crash."], "name": "CVE-2026-97998", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-09-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-97998\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-97998\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-97998.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[0597f2680d666a3bcf101ac0c771ba7e50016bbd,0234d7ca0317be0a623300e1693cd794bbfdf8af)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[0597f2680d666a3bcf101ac0c771ba7e50016bbd,1a7a8ac9a9f0ad0d410c901cb6f233833518844c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[0597f2680d666a3bcf101ac0c771ba7e50016bbd,e2dd0f1f8c4e6334699ea6382e52f6da0c7e45eb)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[0597f2680d666a3bcf101ac0c771ba7e50016bbd,387d744fa7e499d2c3748a4e60e02ebb24e7fb16)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.6.14"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,2.6.14)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.111,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.53,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.7,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc3,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-25T15:30:06.908576+00:00", "updated": "2026-09-30T14:45:07.239292+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}