{"id":"CVE-2026-98352","published":"2026-10-06T09:18:28.587","lastModified":"2026-10-06T09:18:28.587","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/rtrs-clt: Fix CQ pool leak when connect is interrupted\n\nThe client borrows shared CQ credits in the ADDR_RESOLVED handler via\nib_cq_pool_get(), before the peer is connected. create_cm() can return\n-ERESTARTSYS from wait_event_interruptible_timeout() without destroying\nthe CM ID. The init_conns() and stop-and-destroy paths then call\ndestroy_con_cq_qp() while cq is still NULL (no PUT) and only afterwards\nrdma_destroy_id().\n\nCMA serializes the handler against rdma_destroy_id() with handler_mutex,\nbut that does not order the GET against destroy_con_cq_qp(). If\nADDR_RESOLVED has already passed the DESTROYING check, it can take\ncon_mutex, GET credits, and then lose the con to kfree. Device\nunregister later hits WARN_ON(cq->cqe_used) in ib_cq_pool_cleanup().\n\nSet a per-connection flag under con_mutex before CQ/QP teardown so a\nracing ADDR_RESOLVED cannot borrow credits after teardown has begun.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/2ae16aaa78b5edc6e6d0904c84fd9cdfb762bcda","tags":[]},{"url":"https://git.kernel.org/stable/c/31024e158b45358370a0a14ed96589e6aa62d6cb","tags":[]},{"url":"https://git.kernel.org/stable/c/6f8020fe7465f49e234a576c04e415e9d08c7878","tags":[]},{"url":"https://git.kernel.org/stable/c/74c4ed55e61f1b65ddbebc5b635d136461a1c3da","tags":[]},{"url":"https://git.kernel.org/stable/c/8f253d5893f991742464b9e7203c43fc08d0aa11","tags":[]},{"url":"https://git.kernel.org/stable/c/a82cca40139d9fcae8208901856bd5bb4051f097","tags":[]},{"url":"https://git.kernel.org/stable/c/bf88ac4867050112a6c819c8d1a7209bf48ef427","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}