---
id: CVE-2025-68229
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  scsi: target: tcm_loop: Fix segfault in tcm_loop_tpg_address_show()

  If the allocation of tl_hba->sh fails in tcm_loop_driver_probe() and we
  attempt to dereference it i…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  scsi: target: tcm_loop: Fix segfault in tcm_loop_tpg_address_show()

  If the allocation of tl_hba->sh fails in tcm_loop_driver_probe() and we
  attempt to dereference it i…
severity: none
published: '2025-12-16'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T13:10:00.187'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-68229'
references:
  - url: 'https://git.kernel.org/stable/c/13aff3b8a7184281b134698704d6c06863a8361b'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/1c9ba455b5073253ceaadae4859546e38e8261fe'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/3d8c517f6eb27e47b1a198e05f8023038329b40b'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/63f511d3855f7f4b35dd63dbc58fc3d935a81268'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/72e8831079266749a7023618a0de2f289a9dced6'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/a6ef60898ddaf1414592ce3e5b0d94276d631663'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/e6965188f84a7883e6a0d3448e86b0cf29b24dfc'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/f449a1edd7a13bb025aaf9342ea6f8bf92684bbf'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
epss: 0.00204
epssPercentile: 0.09663
ingestedAt: '2026-10-14T13:30:58.460Z'
---

## Overview

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

scsi: target: tcm_loop: Fix segfault in tcm_loop_tpg_address_show()

If the allocation of tl_hba->sh fails in tcm_loop_driver_probe() and we
attempt to dereference it in tcm_loop_tpg_address_show() we will get a
segfault, see below for an example. So, check tl_hba->sh before
dereferencing it.

  Unable to allocate struct scsi_host
  BUG: kernel NULL pointer dereference, address: 0000000000000194
  #PF: supervisor read access in kernel mode
  #PF: error_code(0x0000) - not-present page
  PGD 0 P4D 0
  Oops: 0000 [#1] PREEMPT SMP NOPTI
  CPU: 1 PID: 8356 Comm: tokio-runtime-w Not tainted 6.6.104.2-4.azl3 #1
  Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.1 09/28/2024
  RIP: 0010:tcm_loop_tpg_address_show+0x2e/0x50 [tcm_loop]
...
  Call Trace:
   <TASK>
   configfs_read_iter+0x12d/0x1d0 [configfs]
   vfs_read+0x1b5/0x300
   ksys_read+0x6f/0xf0
...

## Remediation

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