---
id: CVE-2026-98352
title: |-
  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 …
summary: |-
  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 …
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 3b89e92c2a95a39c38a3808f4528e502a39bd94d <
    a82cca40139d9fcae8208901856bd5bb4051f097
  - >-
    Linux >= 3b89e92c2a95a39c38a3808f4528e502a39bd94d <
    74c4ed55e61f1b65ddbebc5b635d136461a1c3da
  - >-
    Linux >= 3b89e92c2a95a39c38a3808f4528e502a39bd94d <
    6f8020fe7465f49e234a576c04e415e9d08c7878
  - >-
    Linux >= 3b89e92c2a95a39c38a3808f4528e502a39bd94d <
    31024e158b45358370a0a14ed96589e6aa62d6cb
  - >-
    Linux >= 3b89e92c2a95a39c38a3808f4528e502a39bd94d <
    8f253d5893f991742464b9e7203c43fc08d0aa11
  - >-
    Linux >= 3b89e92c2a95a39c38a3808f4528e502a39bd94d <
    bf88ac4867050112a6c819c8d1a7209bf48ef427
  - >-
    Linux >= 3b89e92c2a95a39c38a3808f4528e502a39bd94d <
    2ae16aaa78b5edc6e6d0904c84fd9cdfb762bcda
  - Linux 5.13
published: '2026-10-06'
updated: '2026-10-06'
sourceUpdated: '2026-10-06T09:18:28.587'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-98352'
references:
  - url: 'https://git.kernel.org/stable/c/2ae16aaa78b5edc6e6d0904c84fd9cdfb762bcda'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/31024e158b45358370a0a14ed96589e6aa62d6cb'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/6f8020fe7465f49e234a576c04e415e9d08c7878'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/74c4ed55e61f1b65ddbebc5b635d136461a1c3da'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/8f253d5893f991742464b9e7203c43fc08d0aa11'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/a82cca40139d9fcae8208901856bd5bb4051f097'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/bf88ac4867050112a6c819c8d1a7209bf48ef427'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-06T08:50:17.396Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.