---
id: CVE-2026-92513
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  RDMA/mana_ib: drain QP references after partial table insertion

  mana_table_store_ud_qp() publishes a QP at its send-queue id before
  inserting the receive-queue id, dro…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  RDMA/mana_ib: drain QP references after partial table insertion

  mana_table_store_ud_qp() publishes a QP at its send-queue id before
  inserting the receive-queue id, dro…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 8001e9257eca23264550ff9e34598ee43a80f0f9 <
    4aaa2ab816c710be7385b31d08373edcdcd71656
  - >-
    Linux >= 8001e9257eca23264550ff9e34598ee43a80f0f9 <
    638b9a5364c1482e5d104823c1a3884b3d249484
  - >-
    Linux >= 8001e9257eca23264550ff9e34598ee43a80f0f9 <
    97f7c2262c28ebcae64fc957ee978646684a5ed9
  - Linux 6.15
published: '2026-09-17'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T17:17:54.140'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-92513'
references:
  - url: 'https://git.kernel.org/stable/c/4aaa2ab816c710be7385b31d08373edcdcd71656'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/638b9a5364c1482e5d104823c1a3884b3d249484'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/97f7c2262c28ebcae64fc957ee978646684a5ed9'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-17T16:21:47.778Z'
epss: 0.00206
epssPercentile: 0.09482
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

RDMA/mana_ib: drain QP references after partial table insertion

mana_table_store_ud_qp() publishes a QP at its send-queue id before
inserting the receive-queue id, dropping the XArray lock between the two
xa_insert_irq() calls. A concurrent completion handler can look up the QP
and take a transient reference. When the second insertion fails, the
rollback erased only the send-queue entry and returned, leaving both the
initial table reference and the transient reference outstanding while RDMA
core frees the QP, causing a use-after-free.

Drain the reference as normal destruction does: drop the initial reference
and wait for qp->free, releasing the QP only after every concurrent lookup
returns its reference.

## Remediation

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