svcrdma: Reject connection when transport allocation fails

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-89531
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-11 20:19:35 UTC
Updated2026-09-11 20:19:35 UTC
DescriptionIn 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.

Risk And Classification

EPSS: 0.001680000 probability, percentile 0.063420000 (date 2026-09-13)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 377f9b2f4529e0ac702fd7b91e216afd0adc959e 6e21754bbf75075f3fee1cebc79f3417364235ec git Not specified
CNA Linux Linux affected 377f9b2f4529e0ac702fd7b91e216afd0adc959e 3cf372cec7ab2cd8c6002bf775cc14d90ccb098b git Not specified
CNA Linux Linux affected 377f9b2f4529e0ac702fd7b91e216afd0adc959e 1f6a14c142fee4778c32709d1d54595c2e2b7991 git Not specified
CNA Linux Linux affected 377f9b2f4529e0ac702fd7b91e216afd0adc959e 0944462247dcb7de7622cdaaadf5f05c52707dab git Not specified
CNA Linux Linux affected 2.6.25 Not specified
CNA Linux Linux unaffected 2.6.25 semver Not specified
CNA Linux Linux unaffected 6.12.109 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.50 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.4 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/6e21754bbf75075f3fee1cebc79f3417364235ec 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/1f6a14c142fee4778c32709d1d54595c2e2b7991 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/3cf372cec7ab2cd8c6002bf775cc14d90ccb098b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/0944462247dcb7de7622cdaaadf5f05c52707dab 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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