CVE-2026-89531

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-89531", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.720Z", "datePublished": "2026-09-11T19:44:10.769Z", "dateUpdated": "2026-10-30T12:32:02.456Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:32:02.456Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsvcrdma: Reject connection when transport allocation fails\n\nhandle_connect_req() returns without action when\nsvc_rdma_create_xprt() fails to allocate the new transport.\nThe CM core returns 0 for CONNECT_REQUEST events, so it does\nnot destroy the new rdma_cm_id. Each allocation failure under\nmemory pressure leaks one rdma_cm_id, and a remote peer driving\nconnection attempts can amplify this.\n\nReject the connection by returning a non-zero status from the\nCM event handler, which tells the CM core to destroy the\norphaned cm_id."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/sunrpc/xprtrdma/svc_rdma_transport.c"], "versions": [{"version": "377f9b2f4529e0ac702fd7b91e216afd0adc959e", "lessThan": "387401ebe7f4897acd18321dc94817ad6a33f580", "status": "affected", "versionType": "git"}, {"version": "377f9b2f4529e0ac702fd7b91e216afd0adc959e", "lessThan": "5bf47bbea3c22c0af2293b6c393ab04d5420f7ab", "status": "affected", "versionType": "git"}, {"version": "377f9b2f4529e0ac702fd7b91e216afd0adc959e", "lessThan": "6e21754bbf75075f3fee1cebc79f3417364235ec", "status": "affected", "versionType": "git"}, {"version": "377f9b2f4529e0ac702fd7b91e216afd0adc959e", "lessThan": "3cf372cec7ab2cd8c6002bf775cc14d90ccb098b", "status": "affected", "versionType": "git"}, {"version": "377f9b2f4529e0ac702fd7b91e216afd0adc959e", "lessThan": "1f6a14c142fee4778c32709d1d54595c2e2b7991", "status": "affected", "versionType": "git"}, {"version": "377f9b2f4529e0ac702fd7b91e216afd0adc959e", "lessThan": "0944462247dcb7de7622cdaaadf5f05c52707dab", "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/sunrpc/xprtrdma/svc_rdma_transport.c"], "versions": [{"version": "2.6.25", "status": "affected"}, {"version": "0", "lessThan": "2.6.25", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.191", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.160", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.109", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.50", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.4", "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": "2.6.25", "versionEndExcluding": "6.1.191"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.25", "versionEndExcluding": "6.6.160"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.25", "versionEndExcluding": "6.12.109"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.25", "versionEndExcluding": "6.18.50"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.25", "versionEndExcluding": "7.2.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.25", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/387401ebe7f4897acd18321dc94817ad6a33f580"}, {"url": "https://git.kernel.org/stable/c/5bf47bbea3c22c0af2293b6c393ab04d5420f7ab"}, {"url": "https://git.kernel.org/stable/c/6e21754bbf75075f3fee1cebc79f3417364235ec"}, {"url": "https://git.kernel.org/stable/c/3cf372cec7ab2cd8c6002bf775cc14d90ccb098b"}, {"url": "https://git.kernel.org/stable/c/1f6a14c142fee4778c32709d1d54595c2e2b7991"}, {"url": "https://git.kernel.org/stable/c/0944462247dcb7de7622cdaaadf5f05c52707dab"}], "title": "svcrdma: Reject connection when transport allocation fails", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/sunrpc/xprtrdma/svc_rdma_transport.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "387401ebe7f4897acd18321dc94817ad6a33f580", "status": "affected", "version": "377f9b2f4529e0ac702fd7b91e216afd0adc959e", "versionType": "git"}, {"lessThan": "5bf47bbea3c22c0af2293b6c393ab04d5420f7ab", "status": "affected", "version": "377f9b2f4529e0ac702fd7b91e216afd0adc959e", "versionType": "git"}, {"lessThan": "6e21754bbf75075f3fee1cebc79f3417364235ec", "status": "affected", "version": "377f9b2f4529e0ac702fd7b91e216afd0adc959e", "versionType": "git"}, {"lessThan": "3cf372cec7ab2cd8c6002bf775cc14d90ccb098b", "status": "affected", "version": "377f9b2f4529e0ac702fd7b91e216afd0adc959e", "versionType": "git"}, {"lessThan": "1f6a14c142fee4778c32709d1d54595c2e2b7991", "status": "affected", "version": "377f9b2f4529e0ac702fd7b91e216afd0adc959e", "versionType": "git"}, {"lessThan": "0944462247dcb7de7622cdaaadf5f05c52707dab", "status": "affected", "version": "377f9b2f4529e0ac702fd7b91e216afd0adc959e", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/sunrpc/xprtrdma/svc_rdma_transport.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "2.6.25"}, {"lessThan": "2.6.25", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.191", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.160", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.109", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.50", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.4", "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\nsvcrdma: Reject connection when transport allocation fails\n\nhandle_connect_req() returns without action when\nsvc_rdma_create_xprt() fails to allocate the new transport.\nThe CM core returns 0 for CONNECT_REQUEST events, so it does\nnot destroy the new rdma_cm_id. Each allocation failure under\nmemory pressure leaks one rdma_cm_id, and a remote peer driving\nconnection attempts can amplify this.\n\nReject the connection by returning a non-zero status from the\nCM event handler, which tells the CM core to destroy the\norphaned cm_id."}], "id": "CVE-2026-89531", "lastModified": "2026-10-30T13:20:19.047", "metrics": {}, "published": "2026-09-11T20:19:35.987", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0944462247dcb7de7622cdaaadf5f05c52707dab"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1f6a14c142fee4778c32709d1d54595c2e2b7991"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/387401ebe7f4897acd18321dc94817ad6a33f580"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3cf372cec7ab2cd8c6002bf775cc14d90ccb098b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5bf47bbea3c22c0af2293b6c393ab04d5420f7ab"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6e21754bbf75075f3fee1cebc79f3417364235ec"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Linux kernel svcrdma: Denial of Service due to resource leak from failed connection attempts", "id": "2532393", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2532393"}, "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-772", "details": ["A flaw was found in the Linux kernel's svcrdma module. A remote attacker can exploit this vulnerability by repeatedly attempting connections when the system is under memory pressure. This can lead to a resource leak of `rdma_cm_id` objects, which, if amplified, could result in a Denial of Service (DoS) due to resource exhaustion."], "name": "CVE-2026-89531", "public_date": "2026-09-11T19:44:10Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-89531\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-89531\nhttps://git.kernel.org/stable/c/0944462247dcb7de7622cdaaadf5f05c52707dab\nhttps://git.kernel.org/stable/c/1f6a14c142fee4778c32709d1d54595c2e2b7991\nhttps://git.kernel.org/stable/c/3cf372cec7ab2cd8c6002bf775cc14d90ccb098b\nhttps://git.kernel.org/stable/c/6e21754bbf75075f3fee1cebc79f3417364235ec"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[377f9b2f4529e0ac702fd7b91e216afd0adc959e,6e21754bbf75075f3fee1cebc79f3417364235ec)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[377f9b2f4529e0ac702fd7b91e216afd0adc959e,3cf372cec7ab2cd8c6002bf775cc14d90ccb098b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[377f9b2f4529e0ac702fd7b91e216afd0adc959e,1f6a14c142fee4778c32709d1d54595c2e2b7991)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[377f9b2f4529e0ac702fd7b91e216afd0adc959e,0944462247dcb7de7622cdaaadf5f05c52707dab)"}}], "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": "2.6.25"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,2.6.25)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.109,6.13.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.50,6.19.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.4,7.3.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc1,*]"}}], "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": "2026-09-12T09:45:11.610500+00:00", "updated": "2026-09-15T06:45:16.808158+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}