svcrdma: Reject connection when transport allocation fails
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.
CVE-2026-89531
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-89531
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "377f9b2f4529e0ac702fd7b91e216afd0adc959e",
"lessThan": "5bf47bbea3c22c0af2293b6c393ab04d5420f7ab",
"versionType": "git"
},
{
"status": "affected",
"version": "377f9b2f4529e0ac702fd7b91e216afd0adc959e",
"lessThan": "6e21754bbf75075f3fee1cebc79f3417364235ec",
"versionType": "git"
},
{
"status": "affected",
"version": "377f9b2f4529e0ac702fd7b91e216afd0adc959e",
"lessThan": "3cf372cec7ab2cd8c6002bf775cc14d90ccb098b",
"versionType": "git"
},
{
"status": "affected",
"version": "377f9b2f4529e0ac702fd7b91e216afd0adc959e",
"lessThan": "1f6a14c142fee4778c32709d1d54595c2e2b7991",
"versionType": "git"
},
{
"status": "affected",
"version": "377f9b2f4529e0ac702fd7b91e216afd0adc959e",
"lessThan": "0944462247dcb7de7622cdaaadf5f05c52707dab",
"versionType": "git"
}
],
"programFiles": [
"net/sunrpc/xprtrdma/svc_rdma_transport.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.25"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.25",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.109",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.50",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.4",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/sunrpc/xprtrdma/svc_rdma_transport.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-89531
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #46672 · Revision 1
- Added to Heist Feed
- Publisher date