CVE-2026-89531 (GCVE-0-2026-89531)
Vulnerability from cvelistv5 – Published: 2026-09-11 19:44 – Updated: 2026-10-30 12:32
VLAI
EPSS
VEX
Title
svcrdma: Reject connection when transport allocation fails
Summary
In the Linux kernel, the following vulnerability has been resolved:
svcrdma: Reject connection when transport allocation fails
handle_connect_req() returns without action when
svc_rdma_create_xprt() fails to allocate the new transport.
The CM core returns 0 for CONNECT_REQUEST events, so it does
not destroy the new rdma_cm_id. Each allocation failure under
memory pressure leaks one rdma_cm_id, and a remote peer driving
connection attempts can amplify this.
Reject the connection by returning a non-zero status from the
CM event handler, which tells the CM core to destroy the
orphaned cm_id.
Severity
No CVSS data available.
Assigner
References
6 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
377f9b2f4529e0ac702fd7b91e216afd0adc959e , < 387401ebe7f4897acd18321dc94817ad6a33f580
(git)
Affected: 377f9b2f4529e0ac702fd7b91e216afd0adc959e , < 5bf47bbea3c22c0af2293b6c393ab04d5420f7ab (git) Affected: 377f9b2f4529e0ac702fd7b91e216afd0adc959e , < 6e21754bbf75075f3fee1cebc79f3417364235ec (git) Affected: 377f9b2f4529e0ac702fd7b91e216afd0adc959e , < 3cf372cec7ab2cd8c6002bf775cc14d90ccb098b (git) Affected: 377f9b2f4529e0ac702fd7b91e216afd0adc959e , < 1f6a14c142fee4778c32709d1d54595c2e2b7991 (git) Affected: 377f9b2f4529e0ac702fd7b91e216afd0adc959e , < 0944462247dcb7de7622cdaaadf5f05c52707dab (git) |
guessed | |
| Linux | Linux |
Affected:
2.6.25
Unaffected: 0 , < 2.6.25 (semver) Unaffected: 6.1.191 , ≤ 6.1.* (semver) Unaffected: 6.6.160 , ≤ 6.6.* (semver) Unaffected: 6.12.109 , ≤ 6.12.* (semver) Unaffected: 6.18.50 , ≤ 6.18.* (semver) Unaffected: 7.2.4 , ≤ 7.2.* (semver) Unaffected: 7.3 , ≤ * (original_commit_for_fix) |
guessed |
{
"containers": {
"cna": {
"affected": [
{
"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"
},
{
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"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"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.191",
"versionStartIncluding": "2.6.25",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.160",
"versionStartIncluding": "2.6.25",
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},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.109",
"versionStartIncluding": "2.6.25",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18.50",
"versionStartIncluding": "2.6.25",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.2.4",
"versionStartIncluding": "2.6.25",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.3",
"versionStartIncluding": "2.6.25",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"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."
}
],
"providerMetadata": {
"dateUpdated": "2026-10-30T12:32:02.456Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"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"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-89531",
"datePublished": "2026-09-11T19:44:10.769Z",
"dateReserved": "2026-09-11T19:38:34.720Z",
"dateUpdated": "2026-10-30T12:32:02.456Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-89531",
"date": "2026-11-01",
"epss": "0.00173",
"percentile": "0.06732"
},
"microsoft_vex": {
"current_release_date": "2026-09-24T02:23:00.000Z",
"cve": "CVE-2026-89531",
"id": "msrc_CVE-2026-89531",
"initial_release_date": "2026-09-13T01:13:43.000Z",
"product_status:known_affected": "3",
"source": "Microsoft CSAF VEX",
"status": "final",
"title": "svcrdma: Reject connection when transport allocation fails",
"url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-89531.json",
"version": "4"
},
"nvd": {
"cve": {
"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"
},
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"versionType": "git"
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"versionType": "git"
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"status": "affected",
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"versionType": "git"
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"versionType": "git"
},
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"status": "affected",
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"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"
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{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/6e21754bbf75075f3fee1cebc79f3417364235ec"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Received"
}
},
"redhat_vex": {
"aggregate_severity": "Low",
"current_release_date": "2026-10-05T20:02:04+00:00",
"cve": "CVE-2026-89531",
"id": "CVE-2026-89531",
"initial_release_date": "2026-09-11T00:00:00+00:00",
"product_status:known_affected": "277",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: svcrdma: Reject connection when transport allocation fails",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89531.json",
"version": "3"
}
}
}
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| Author | Source | Type | Date | Other |
|---|
Nomenclature
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