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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-89531

svcrdma: Reject connection when transport allocation fails

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Status
Published
Published
Updated
Assigning organization
Linux

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 377f9b2f4529e0ac702fd7b91e216afd0adc959e to < 387401ebe7f4897acd18321dc94817ad6a33f580affected
  • 377f9b2f4529e0ac702fd7b91e216afd0adc959e to < 5bf47bbea3c22c0af2293b6c393ab04d5420f7abaffected
  • 377f9b2f4529e0ac702fd7b91e216afd0adc959e to < 6e21754bbf75075f3fee1cebc79f3417364235ecaffected
  • 377f9b2f4529e0ac702fd7b91e216afd0adc959e to < 3cf372cec7ab2cd8c6002bf775cc14d90ccb098baffected
  • 377f9b2f4529e0ac702fd7b91e216afd0adc959e to < 1f6a14c142fee4778c32709d1d54595c2e2b7991affected
  • 377f9b2f4529e0ac702fd7b91e216afd0adc959e to < 0944462247dcb7de7622cdaaadf5f05c52707dabaffected

Linux Linux

Default version status: affected

  • 2.6.25affected
  • 0 to < 2.6.25unaffected
  • 6.1.191 to ≤ 6.1.*unaffected
  • 6.6.160 to ≤ 6.6.*unaffected
  • 6.12.109 to ≤ 6.12.*unaffected
  • 6.18.50 to ≤ 6.18.*unaffected
  • 7.2.4 to ≤ 7.2.*unaffected
  • 7.3 to ≤ *unaffected

References