---
id: CVE-2026-93110
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  RDMA/core: Wait for RCU callbacks before unloading ib_core

  put_gid_ndev() is queued with call_rcu() and implemented in ib_core.
  Stopping the workqueues does not drain …
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  RDMA/core: Wait for RCU callbacks before unloading ib_core

  put_gid_ndev() is queued with call_rcu() and implemented in ib_core.
  Stopping the workqueues does not drain …
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 943bd984b108b3bb778790c2da4ae8d186b547e6 <
    82dfd1df456227279b1c8c648983a530f2612098
  - >-
    Linux >= 943bd984b108b3bb778790c2da4ae8d186b547e6 <
    1646e123e56c3ad679fbfb571e8eef6386efb729
  - >-
    Linux >= 943bd984b108b3bb778790c2da4ae8d186b547e6 <
    8e4f1677c09d75d738099f42afcf65d8587b664a
  - >-
    Linux >= 943bd984b108b3bb778790c2da4ae8d186b547e6 <
    7853af5f15738dc00aebaa1fc9f1f0df40f6f603
  - >-
    Linux >= 943bd984b108b3bb778790c2da4ae8d186b547e6 <
    0d5817fa4819abdc445fa77b5be4f0d49334a864
  - >-
    Linux >= 943bd984b108b3bb778790c2da4ae8d186b547e6 <
    9d998297fdaf47492f6679287f6552879d1a7e3a
  - >-
    Linux >= 943bd984b108b3bb778790c2da4ae8d186b547e6 <
    48b72fa0d209a92fb51b834a6080171cfa207b2c
  - >-
    Linux >= 943bd984b108b3bb778790c2da4ae8d186b547e6 <
    7d75592114d1664623c8cf191a12b38052c04483
  - Linux 5.2
published: '2026-09-17'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T17:18:05.450'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93110'
references:
  - url: 'https://git.kernel.org/stable/c/0d5817fa4819abdc445fa77b5be4f0d49334a864'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/1646e123e56c3ad679fbfb571e8eef6386efb729'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/48b72fa0d209a92fb51b834a6080171cfa207b2c'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/7853af5f15738dc00aebaa1fc9f1f0df40f6f603'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/7d75592114d1664623c8cf191a12b38052c04483'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/82dfd1df456227279b1c8c648983a530f2612098'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/8e4f1677c09d75d738099f42afcf65d8587b664a'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/9d998297fdaf47492f6679287f6552879d1a7e3a'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-17T16:21:47.754Z'
epss: 0.0022
epssPercentile: 0.11115
---

## Overview

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

RDMA/core: Wait for RCU callbacks before unloading ib_core

put_gid_ndev() is queued with call_rcu() and implemented in ib_core.
Stopping the workqueues does not drain callbacks already queued, so RCU
could invoke it after the module code has been unloaded.

synchronize_rcu() does not wait for callbacks. Wait for them after all
producers have stopped.

## Remediation

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