---
id: CVE-2026-68444
title: 'firmware: arm_ffa: Fix NULL dereference in ffa_partition_info_get()'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  firmware: arm_ffa: Fix NULL dereference in ffa_partition_info_get()

  ffa_partition_info_get() passes uuid_str directly to uuid_parse()
  without a NULL check. When a call…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= d0c0bce831223b08e5bade2cefc93c3ddb790796 <
    7dfb020e3048411fbca91e9ad6174da9a2d3e2b3
  - >-
    Linux >= d0c0bce831223b08e5bade2cefc93c3ddb790796 <
    ddf85f0c32e05baafbd9c3a44859858db90eec48
  - >-
    Linux >= d0c0bce831223b08e5bade2cefc93c3ddb790796 <
    86f5ea90f73bb7154593bb96f3411e197f3d4fbe
  - >-
    Linux >= d0c0bce831223b08e5bade2cefc93c3ddb790796 <
    7201e56e52d18abf4cd0a2fee45daf9dc08b5b97
  - >-
    Linux >= d0c0bce831223b08e5bade2cefc93c3ddb790796 <
    996c5c19d5b5ac5b98a7b5a406b548305841c301
  - >-
    Linux >= d0c0bce831223b08e5bade2cefc93c3ddb790796 <
    12a42c610e4432e7708cc48d607e5903fffe0aad
  - >-
    Linux >= d0c0bce831223b08e5bade2cefc93c3ddb790796 <
    8ae5f8e4836667fcaffdf2e3c6068b0a8b364dd8
  - Linux 5.14
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-06T16:49:39.218245Z'
published: '2026-08-12'
updated: '2026-11-06'
sourceUpdated: '2026-11-06T16:55:17.016Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-68444'
references:
  - url: 'https://git.kernel.org/stable/c/7dfb020e3048411fbca91e9ad6174da9a2d3e2b3'
  - url: 'https://git.kernel.org/stable/c/ddf85f0c32e05baafbd9c3a44859858db90eec48'
  - url: 'https://git.kernel.org/stable/c/86f5ea90f73bb7154593bb96f3411e197f3d4fbe'
  - url: 'https://git.kernel.org/stable/c/7201e56e52d18abf4cd0a2fee45daf9dc08b5b97'
  - url: 'https://git.kernel.org/stable/c/996c5c19d5b5ac5b98a7b5a406b548305841c301'
  - url: 'https://git.kernel.org/stable/c/12a42c610e4432e7708cc48d607e5903fffe0aad'
  - url: 'https://git.kernel.org/stable/c/8ae5f8e4836667fcaffdf2e3c6068b0a8b364dd8'
tags:
  - cve.org
epss: 0.00173
epssPercentile: 0.06787
ingestedAt: '2026-11-06T18:00:12.602Z'
---

## Overview

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

firmware: arm_ffa: Fix NULL dereference in ffa_partition_info_get()

ffa_partition_info_get() passes uuid_str directly to uuid_parse()
without a NULL check. When a caller passes NULL, uuid_parse() ->
__uuid_parse() -> uuid_is_valid() dereferences the pointer, causing
a kernel panic:

  |  Unable to handle kernel NULL pointer dereference at virtual address
  |  0000000000000040
  |  pc : uuid_parse+0x40/0xac
  |  lr : ffa_partition_info_get+0x1c/0x94 [arm_ffa]

Add a NULL guard before uuid_parse() so a NULL argument returns
-ENODEV instead of crashing. Callers are expected to always supply
a valid partition UUID, so NULL is not a supported input.

## Affected

- `Linux >= d0c0bce831223b08e5bade2cefc93c3ddb790796 < 7dfb020e3048411fbca91e9ad6174da9a2d3e2b3`
- `Linux >= d0c0bce831223b08e5bade2cefc93c3ddb790796 < ddf85f0c32e05baafbd9c3a44859858db90eec48`
- `Linux >= d0c0bce831223b08e5bade2cefc93c3ddb790796 < 86f5ea90f73bb7154593bb96f3411e197f3d4fbe`
- `Linux >= d0c0bce831223b08e5bade2cefc93c3ddb790796 < 7201e56e52d18abf4cd0a2fee45daf9dc08b5b97`
- `Linux >= d0c0bce831223b08e5bade2cefc93c3ddb790796 < 996c5c19d5b5ac5b98a7b5a406b548305841c301`
- `Linux >= d0c0bce831223b08e5bade2cefc93c3ddb790796 < 12a42c610e4432e7708cc48d607e5903fffe0aad`
- `Linux >= d0c0bce831223b08e5bade2cefc93c3ddb790796 < 8ae5f8e4836667fcaffdf2e3c6068b0a8b364dd8`
- `Linux 5.14`

## Remediation

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