CVE-2026-98352RDMA/rtrs-clt: Fix CQ pool leak when connect is interrupted
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: RDMA/rtrs-clt: Fix CQ pool leak when connect is interrupted The client borrows shared CQ credits in the ADDR_RESOLVED handler via ib_cq_pool_get(), before the peer is connected. create_cm() can return -ERESTARTSYS from wait_event_interruptible_timeout() without destroying the CM ID. The init_conns() and stop-and-destroy paths then call destroy_con_cq_qp() while cq is still NULL (no PUT) and only afterwards rdma_destroy_id(). CMA serializes the handler against rdma_destroy_id() with handler_mutex, but that does not order the GET against destroy_con_cq_qp(). If ADDR_RESOLVED has already passed the DESTROYING check, it can take con_mutex, GET credits, and then lose the con to kfree. Device unregister later hits WARN_ON(cq->cqe_used) in ib_cq_pool_cleanup(). Set a per-connection flag under con_mutex before CQ/QP teardown so a racing ADDR_RESOLVED cannot borrow credits after teardown has begun.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 6, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 3b89e92c2a95a39c38a3808f4528e502a39bd94d before a82cca40139d9fcae8208901856bd5bb4051f097; from 3b89e92c2a95a39c38a3808f4528e502a39bd94d before 74c4ed55e61f1b65ddbebc5b635d136461a1c3da; from 3b89e92c2a95a39c38a3808f4528e502a39bd94d before 6f8020fe7465f49e234a576c04e415e9d08c7878; from 3b89e92c2a95a39c38a3808f4528e502a39bd94d before 31024e158b45358370a0a14ed96589e6aa62d6cb; from 3b89e92c2a95a39c38a3808f4528e502a39bd94d before 8f253d5893f991742464b9e7203c43fc08d0aa11; from 3b89e92c2a95a39c38a3808f4528e502a39bd94d before bf88ac4867050112a6c819c8d1a7209bf48ef427; 3b89e92c2a95a39c38a3808f4528e502a39bd94d builds before 2ae16aaa78b5edc6e6d0904c84fd9cdfb762bcda | CNA record |
References
- https://git.kernel.org/stable/c/a82cca40139d9fcae8208901856bd5bb4051f097
- https://git.kernel.org/stable/c/74c4ed55e61f1b65ddbebc5b635d136461a1c3da
- https://git.kernel.org/stable/c/6f8020fe7465f49e234a576c04e415e9d08c7878
- https://git.kernel.org/stable/c/31024e158b45358370a0a14ed96589e6aa62d6cb
- https://git.kernel.org/stable/c/8f253d5893f991742464b9e7203c43fc08d0aa11
- https://git.kernel.org/stable/c/bf88ac4867050112a6c819c8d1a7209bf48ef427
- https://git.kernel.org/stable/c/2ae16aaa78b5edc6e6d0904c84fd9cdfb762bcda
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.