CVEvulnerability
CVE-2026-89531
- Status
- Received
- Published
- 2026-09-11
- Last modified
- 2026-10-21
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
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.
References
- https://git.kernel.org/stable/c/0944462247dcb7de7622cdaaadf5f05c52707dab git.kernel.org
- https://git.kernel.org/stable/c/1f6a14c142fee4778c32709d1d54595c2e2b7991 git.kernel.org
- https://git.kernel.org/stable/c/3cf372cec7ab2cd8c6002bf775cc14d90ccb098b git.kernel.org
- https://git.kernel.org/stable/c/5bf47bbea3c22c0af2293b6c393ab04d5420f7ab git.kernel.org
- https://git.kernel.org/stable/c/6e21754bbf75075f3fee1cebc79f3417364235ec git.kernel.org