CVE-2026-98561

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98561", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.357Z", "datePublished": "2026-10-18T15:18:28.011Z", "dateUpdated": "2026-10-19T09:21:45.378Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:21:45.378Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfp: hold IPsec RX state under the XArray lock\n\nnfp_net_ipsec_rx() drops the XArray lock before taking a reference to the\nxfrm_state it found. The delete path can erase the entry and drop the last\nstate reference in that interval. RX can then try to increment a zero\nrefcount after the state has been queued for destruction.\n\nThe driver queues firmware invalidation asynchronously; the delete path\ndoes not wait for the command to complete or drain pending RX processing.\n\nThe XFRM garbage collector waits for an RCU grace period before freeing\nthe state. That delays reclamation but does not make acquiring a reference\nfrom zero valid.\n\nTake the xfrm_state reference before releasing the XArray lock so\nxa_erase() cannot run between lookup and reference acquisition."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/netronome/nfp/crypto/ipsec.c"], "versions": [{"version": "57f273adbcd44172cbe0bd10b8b7408dd255699f", "lessThan": "c1b1639fb138db52fcfbd1747e92f2454076c6d5", "status": "affected", "versionType": "git"}, {"version": "57f273adbcd44172cbe0bd10b8b7408dd255699f", "lessThan": "dd765023bb54f9650f8b9137906fb2c4a554dd1d", "status": "affected", "versionType": "git"}, {"version": "57f273adbcd44172cbe0bd10b8b7408dd255699f", "lessThan": "8468d05aa08dc430b5675beadf6f6fb8943f170b", "status": "affected", "versionType": "git"}, {"version": "57f273adbcd44172cbe0bd10b8b7408dd255699f", "lessThan": "fe6c8ea8bfd5d1253bb0de682b1fcc2c4bb92488", "status": "affected", "versionType": "git"}, {"version": "57f273adbcd44172cbe0bd10b8b7408dd255699f", "lessThan": "1a983a4e14c635c40354be110cd9a1a5c94e01e6", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/netronome/nfp/crypto/ipsec.c"], "versions": [{"version": "6.2", "status": "affected"}, {"version": "0", "lessThan": "6.2", "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": "6.18.55", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.9", "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": "6.2", "versionEndExcluding": "6.6.158"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.12.112"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.18.55"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "7.2.9"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/c1b1639fb138db52fcfbd1747e92f2454076c6d5"}, {"url": "https://git.kernel.org/stable/c/dd765023bb54f9650f8b9137906fb2c4a554dd1d"}, {"url": "https://git.kernel.org/stable/c/8468d05aa08dc430b5675beadf6f6fb8943f170b"}, {"url": "https://git.kernel.org/stable/c/fe6c8ea8bfd5d1253bb0de682b1fcc2c4bb92488"}, {"url": "https://git.kernel.org/stable/c/1a983a4e14c635c40354be110cd9a1a5c94e01e6"}], "title": "nfp: hold IPsec RX state under the XArray lock", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/ethernet/netronome/nfp/crypto/ipsec.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "c1b1639fb138db52fcfbd1747e92f2454076c6d5", "status": "affected", "version": "57f273adbcd44172cbe0bd10b8b7408dd255699f", "versionType": "git"}, {"lessThan": "dd765023bb54f9650f8b9137906fb2c4a554dd1d", "status": "affected", "version": "57f273adbcd44172cbe0bd10b8b7408dd255699f", "versionType": "git"}, {"lessThan": "8468d05aa08dc430b5675beadf6f6fb8943f170b", "status": "affected", "version": "57f273adbcd44172cbe0bd10b8b7408dd255699f", "versionType": "git"}, {"lessThan": "fe6c8ea8bfd5d1253bb0de682b1fcc2c4bb92488", "status": "affected", "version": "57f273adbcd44172cbe0bd10b8b7408dd255699f", "versionType": "git"}, {"lessThan": "1a983a4e14c635c40354be110cd9a1a5c94e01e6", "status": "affected", "version": "57f273adbcd44172cbe0bd10b8b7408dd255699f", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/ethernet/netronome/nfp/crypto/ipsec.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.2"}, {"lessThan": "6.2", "status": "unaffected", "version": "0", "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": "6.18.55", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.9", "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\nnfp: hold IPsec RX state under the XArray lock\n\nnfp_net_ipsec_rx() drops the XArray lock before taking a reference to the\nxfrm_state it found. The delete path can erase the entry and drop the last\nstate reference in that interval. RX can then try to increment a zero\nrefcount after the state has been queued for destruction.\n\nThe driver queues firmware invalidation asynchronously; the delete path\ndoes not wait for the command to complete or drain pending RX processing.\n\nThe XFRM garbage collector waits for an RCU grace period before freeing\nthe state. That delays reclamation but does not make acquiring a reference\nfrom zero valid.\n\nTake the xfrm_state reference before releasing the XArray lock so\nxa_erase() cannot run between lookup and reference acquisition."}], "id": "CVE-2026-98561", "lastModified": "2026-10-19T10:19:12.680", "metrics": {}, "published": "2026-10-18T16:17:08.243", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1a983a4e14c635c40354be110cd9a1a5c94e01e6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8468d05aa08dc430b5675beadf6f6fb8943f170b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c1b1639fb138db52fcfbd1747e92f2454076c6d5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/dd765023bb54f9650f8b9137906fb2c4a554dd1d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fe6c8ea8bfd5d1253bb0de682b1fcc2c4bb92488"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: nfp: hold IPsec RX state under the XArray lock", "id": "2555021", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2555021"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.9", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-413", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnfp: hold IPsec RX state under the XArray lock\nnfp_net_ipsec_rx() drops the XArray lock before taking a reference to the\nxfrm_state it found. The delete path can erase the entry and drop the last\nstate reference in that interval. RX can then try to increment a zero\nrefcount after the state has been queued for destruction.\nThe driver queues firmware invalidation asynchronously; the delete path\ndoes not wait for the command to complete or drain pending RX processing.\nThe XFRM garbage collector waits for an RCU grace period before freeing\nthe state. That delays reclamation but does not make acquiring a reference\nfrom zero valid.\nTake the xfrm_state reference before releasing the XArray lock so\nxa_erase() cannot run between lookup and reference acquisition.", "A flaw was found in the Linux kernel's Netronome Flow Processor (nfp) network driver. A race condition occurs when incoming Internet Protocol Security (IPsec) network packets are processed concurrently with the removal of security associations. Because the driver releases internal locks before securing a reference to the connection state, the system attempts to increment a reference count on an object already queued for destruction. This issue can lead to memory corruption and crash the system, resulting in a Denial of Service (DoS)."], "name": "CVE-2026-98561", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not 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": "Not affected", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-10-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-98561\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98561\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98561.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[57f273adbcd44172cbe0bd10b8b7408dd255699f,c1b1639fb138db52fcfbd1747e92f2454076c6d5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[57f273adbcd44172cbe0bd10b8b7408dd255699f,dd765023bb54f9650f8b9137906fb2c4a554dd1d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[57f273adbcd44172cbe0bd10b8b7408dd255699f,8468d05aa08dc430b5675beadf6f6fb8943f170b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[57f273adbcd44172cbe0bd10b8b7408dd255699f,fe6c8ea8bfd5d1253bb0de682b1fcc2c4bb92488)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[57f273adbcd44172cbe0bd10b8b7408dd255699f,1a983a4e14c635c40354be110cd9a1a5c94e01e6)"}}], "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": "6.2"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.2)"}}, {"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": "[6.18.55,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.9,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc5,*]"}}], "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": "2026-10-18T18:15:15.189777+00:00", "updated": "2026-10-20T19:30:07.040368+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-362", "CWE-413", "CWE-416"]}