CVE-2026-89531

svcrdma: Reject connection when transport allocation fails

N/A
Published: September 11, 2026 at 07:44 PM UTC
Updated: October 30, 2026 at 01:20 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

2.6.25377f9b2f4529e0ac702fd7b91e216afd0adc959e
Vendor states this is fixed in 0944462247dcb7de7622cdaaadf5f05c52707dab (fixed)
Vendor states this is fixed in 1f6a14c142fee4778c32709d1d54595c2e2b7991 (fixed)
Vendor states this is fixed in 3cf372cec7ab2cd8c6002bf775cc14d90ccb098b (fixed)
Vendor states this is fixed in 6e21754bbf75075f3fee1cebc79f3417364235ec (fixed)
Vendor states this is fixed in 2.6.25 (unaffected)
Vendor states this is fixed in 6.12.109 (unaffected)
Vendor states this is fixed in 6.18.50 (unaffected)
Vendor states this is fixed in 6.6.160 (unaffected)
Vendor states this is fixed in 7.2.4 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusRECEIVED

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