---
id: CVE-2026-90202
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  scsi: mpt3sas: Avoid freeing unallocated PCIe SGL buffers

  _base_release_memory_pools() unconditionally frees every
  ioc->pcie_sg_lookup[] entry, including ones the setu…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  scsi: mpt3sas: Avoid freeing unallocated PCIe SGL buffers

  _base_release_memory_pools() unconditionally frees every
  ioc->pcie_sg_lookup[] entry, including ones the setu…
severity: medium
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= dbec4c9040edc15442c3ebdb65408aa9d3b82c24 <
    3361709fb6f6568b157c6f24ed21a4a5d86d73db
  - >-
    Linux >= dbec4c9040edc15442c3ebdb65408aa9d3b82c24 <
    240b582b6372bebb1245d911add9954b7dd6c02d
  - >-
    Linux >= dbec4c9040edc15442c3ebdb65408aa9d3b82c24 <
    a61181f9ee30a98d2350c1bff32954a7521f9a23
  - >-
    Linux >= dbec4c9040edc15442c3ebdb65408aa9d3b82c24 <
    afedf35df054bd713e9e13771aa0a056932c5c67
  - >-
    Linux >= dbec4c9040edc15442c3ebdb65408aa9d3b82c24 <
    bc3398db3b64729b4a7907af317daad04795ad40
  - >-
    Linux >= dbec4c9040edc15442c3ebdb65408aa9d3b82c24 <
    2dbdd025b228110ccbfbab95fe16e098313a14af
  - >-
    Linux >= dbec4c9040edc15442c3ebdb65408aa9d3b82c24 <
    e2cd23443d3616ea0876f27762b17e2ec67d896c
  - >-
    Linux >= dbec4c9040edc15442c3ebdb65408aa9d3b82c24 <
    b9f679dfe629004b593f018df33b330d799bcee4
  - Linux 4.16
published: '2026-09-17'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T17:17:15.180'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90202'
references:
  - url: 'https://git.kernel.org/stable/c/240b582b6372bebb1245d911add9954b7dd6c02d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/2dbdd025b228110ccbfbab95fe16e098313a14af'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/3361709fb6f6568b157c6f24ed21a4a5d86d73db'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/a61181f9ee30a98d2350c1bff32954a7521f9a23'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/afedf35df054bd713e9e13771aa0a056932c5c67'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/b9f679dfe629004b593f018df33b330d799bcee4'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/bc3398db3b64729b4a7907af317daad04795ad40'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/e2cd23443d3616ea0876f27762b17e2ec67d896c'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90202.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-90202'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2536763'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-90202'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90202'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-90202.mbox
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
ingestedAt: '2026-09-17T16:21:47.860Z'
epss: 0.00216
epssPercentile: 0.1201
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cvssSource: vendor
cwe:
  - CWE-476
---

## Overview

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

scsi: mpt3sas: Avoid freeing unallocated PCIe SGL buffers

_base_release_memory_pools() unconditionally frees every
ioc->pcie_sg_lookup[] entry, including ones the setup loop never
allocated after a partial failure, causing a "bad dma" warning on debug
kernels or a NULL pointer dereference otherwise.

## Remediation

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

## Vendor advisories

- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-10-06 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90202.json)