CVE-2026-98370

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98370", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.344Z", "datePublished": "2026-10-06T08:46:54.981Z", "dateUpdated": "2026-10-19T09:18:22.245Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:18:22.245Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfrm: fix compat ALLOCSPI request use-after-free\n\nxfrm_state_netlink() builds the ALLOCSPI response with\ndump_one_state(), which already calls alloc_compat() with the response\nskb and header.\n\nxfrm_alloc_userspi() then calls alloc_compat() again, but passes the\noriginal request skb and its header. For a compat request, the\ntranslator therefore interprets the 228-byte compat xfrm_userspi_info\nas the 232-byte native layout and reads four bytes past the declared\npayload. It also publishes the translated child through the request's\nfrag_list.\n\nA multicast clone of the request shares skb_shared_info and can observe\nthat child. xfrm_user_rcv_msg() frees it after the request handler\nreturns, racing a compat receiver which may still be copying from it and\nresulting in a use-after-free.\n\nRemove the redundant conversion. The response keeps its correct compat\ntranslation from dump_one_state(), and no child is attached to the\ninbound request."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/xfrm/xfrm_user.c"], "versions": [{"version": "5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3", "lessThan": "494f2bee9d8d0ebcfa249ac41bed7fed26d119b4", "status": "affected", "versionType": "git"}, {"version": "5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3", "lessThan": "17893987e52918c23945c42e47e894a936305a25", "status": "affected", "versionType": "git"}, {"version": "5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3", "lessThan": "42971ea17c7a8afc0bdd5ca40648bf4e5bb7b810", "status": "affected", "versionType": "git"}, {"version": "5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3", "lessThan": "2b63341e2ebc9b6f73cbd9214dbe7d46dd98c718", "status": "affected", "versionType": "git"}, {"version": "5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3", "lessThan": "bb63ab52a18273ec68340ac49aebbaa7b514ccd5", "status": "affected", "versionType": "git"}, {"version": "5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3", "lessThan": "248433942155b42a0ef04a5806c8aca024ea7c33", "status": "affected", "versionType": "git"}, {"version": "5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3", "lessThan": "e70f639aee2ff0def155c256cace9e0f81d998e2", "status": "affected", "versionType": "git"}, {"version": "5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3", "lessThan": "d1ebd9081879fd9ae9c8fb7e8928f19cc88ae320", "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/xfrm/xfrm_user.c"], "versions": [{"version": "5.10", "status": "affected"}, {"version": "0", "lessThan": "5.10", "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": "6.12.112", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.54", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.8", "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": "5.10", "versionEndExcluding": "5.10.271"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "5.15.222"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "6.1.189"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "6.6.158"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "6.12.112"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "6.18.54"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "7.2.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/494f2bee9d8d0ebcfa249ac41bed7fed26d119b4"}, {"url": "https://git.kernel.org/stable/c/17893987e52918c23945c42e47e894a936305a25"}, {"url": "https://git.kernel.org/stable/c/42971ea17c7a8afc0bdd5ca40648bf4e5bb7b810"}, {"url": "https://git.kernel.org/stable/c/2b63341e2ebc9b6f73cbd9214dbe7d46dd98c718"}, {"url": "https://git.kernel.org/stable/c/bb63ab52a18273ec68340ac49aebbaa7b514ccd5"}, {"url": "https://git.kernel.org/stable/c/248433942155b42a0ef04a5806c8aca024ea7c33"}, {"url": "https://git.kernel.org/stable/c/e70f639aee2ff0def155c256cace9e0f81d998e2"}, {"url": "https://git.kernel.org/stable/c/d1ebd9081879fd9ae9c8fb7e8928f19cc88ae320"}], "title": "xfrm: fix compat ALLOCSPI request use-after-free", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/xfrm/xfrm_user.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "494f2bee9d8d0ebcfa249ac41bed7fed26d119b4", "status": "affected", "version": "5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3", "versionType": "git"}, {"lessThan": "17893987e52918c23945c42e47e894a936305a25", "status": "affected", "version": "5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3", "versionType": "git"}, {"lessThan": "42971ea17c7a8afc0bdd5ca40648bf4e5bb7b810", "status": "affected", "version": "5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3", "versionType": "git"}, {"lessThan": "2b63341e2ebc9b6f73cbd9214dbe7d46dd98c718", "status": "affected", "version": "5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3", "versionType": "git"}, {"lessThan": "bb63ab52a18273ec68340ac49aebbaa7b514ccd5", "status": "affected", "version": "5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3", "versionType": "git"}, {"lessThan": "248433942155b42a0ef04a5806c8aca024ea7c33", "status": "affected", "version": "5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3", "versionType": "git"}, {"lessThan": "e70f639aee2ff0def155c256cace9e0f81d998e2", "status": "affected", "version": "5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3", "versionType": "git"}, {"lessThan": "d1ebd9081879fd9ae9c8fb7e8928f19cc88ae320", "status": "affected", "version": "5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/xfrm/xfrm_user.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.10"}, {"lessThan": "5.10", "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": "6.12.112", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.54", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.8", "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\nxfrm: fix compat ALLOCSPI request use-after-free\n\nxfrm_state_netlink() builds the ALLOCSPI response with\ndump_one_state(), which already calls alloc_compat() with the response\nskb and header.\n\nxfrm_alloc_userspi() then calls alloc_compat() again, but passes the\noriginal request skb and its header. For a compat request, the\ntranslator therefore interprets the 228-byte compat xfrm_userspi_info\nas the 232-byte native layout and reads four bytes past the declared\npayload. It also publishes the translated child through the request's\nfrag_list.\n\nA multicast clone of the request shares skb_shared_info and can observe\nthat child. xfrm_user_rcv_msg() frees it after the request handler\nreturns, racing a compat receiver which may still be copying from it and\nresulting in a use-after-free.\n\nRemove the redundant conversion. The response keeps its correct compat\ntranslation from dump_one_state(), and no child is attached to the\ninbound request."}], "id": "CVE-2026-98370", "lastModified": "2026-10-19T10:18:40.183", "metrics": {}, "published": "2026-10-06T09:18:31.450", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/17893987e52918c23945c42e47e894a936305a25"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/248433942155b42a0ef04a5806c8aca024ea7c33"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2b63341e2ebc9b6f73cbd9214dbe7d46dd98c718"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/42971ea17c7a8afc0bdd5ca40648bf4e5bb7b810"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/494f2bee9d8d0ebcfa249ac41bed7fed26d119b4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bb63ab52a18273ec68340ac49aebbaa7b514ccd5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d1ebd9081879fd9ae9c8fb7e8928f19cc88ae320"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e70f639aee2ff0def155c256cace9e0f81d998e2"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: xfrm: fix compat ALLOCSPI request use-after-free", "id": "2546397", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2546397"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-825", "details": ["A flaw was found in the Linux kernel's IPsec (Internet Protocol Security) subsystem. A local attacker can exploit this issue by submitting 32-bit compatibility requests, which triggers a race condition during message translation. This flaw leads to a use-after-free condition, potentially allowing an attacker to escalate privileges or cause a system crash resulting in a Denial of Service (DoS)."], "name": "CVE-2026-98370", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-10-06T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-98370\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98370\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98370.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3,494f2bee9d8d0ebcfa249ac41bed7fed26d119b4)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3,17893987e52918c23945c42e47e894a936305a25)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3,42971ea17c7a8afc0bdd5ca40648bf4e5bb7b810)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3,2b63341e2ebc9b6f73cbd9214dbe7d46dd98c718)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3,bb63ab52a18273ec68340ac49aebbaa7b514ccd5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3,248433942155b42a0ef04a5806c8aca024ea7c33)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3,e70f639aee2ff0def155c256cace9e0f81d998e2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5f3eea6b7e8f58cf5c8a9d4b9679dc19e9e67ba3,d1ebd9081879fd9ae9c8fb7e8928f19cc88ae320)"}}], "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": "generic", "value": "5.10"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.10)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.271,5.11.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.222,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.189,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.158,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.112,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.54,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.8,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc4,*]"}}], "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": "2026-10-06T14:15:17.995449+00:00", "updated": "2026-10-09T03:45:16.901351+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}