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CVE-2025-68229
scsi: target: tcm_loop: Fix segfault in tcm_loop_tpg_address_show()
Description

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 ...

INFO

Published Date :

Dec. 16, 2025, 2:15 p.m.

Last Modified :

Dec. 16, 2025, 2:15 p.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products

The following products are affected by CVE-2025-68229 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

: Total Affected Vendor : 0 | Products : 0
Solution
Fix a null pointer dereference in scsi target driver that may lead to a segfault.
  • Update the Linux kernel to include the fix.
  • Apply the patch for tcm_loop_tpg_address_show().
  • Ensure allocation checks prevent dereferencing null pointers.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-68229.

URL Resource
https://git.kernel.org/stable/c/13aff3b8a7184281b134698704d6c06863a8361b
https://git.kernel.org/stable/c/1c9ba455b5073253ceaadae4859546e38e8261fe
https://git.kernel.org/stable/c/3d8c517f6eb27e47b1a198e05f8023038329b40b
https://git.kernel.org/stable/c/63f511d3855f7f4b35dd63dbc58fc3d935a81268
https://git.kernel.org/stable/c/72e8831079266749a7023618a0de2f289a9dced6
https://git.kernel.org/stable/c/a6ef60898ddaf1414592ce3e5b0d94276d631663
https://git.kernel.org/stable/c/e6965188f84a7883e6a0d3448e86b0cf29b24dfc
https://git.kernel.org/stable/c/f449a1edd7a13bb025aaf9342ea6f8bf92684bbf
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-68229 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-68229 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-68229 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2025-68229 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Dec. 16, 2025

    Action Type Old Value New Value
    Added Description 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 ...
    Added Reference https://git.kernel.org/stable/c/13aff3b8a7184281b134698704d6c06863a8361b
    Added Reference https://git.kernel.org/stable/c/1c9ba455b5073253ceaadae4859546e38e8261fe
    Added Reference https://git.kernel.org/stable/c/3d8c517f6eb27e47b1a198e05f8023038329b40b
    Added Reference https://git.kernel.org/stable/c/63f511d3855f7f4b35dd63dbc58fc3d935a81268
    Added Reference https://git.kernel.org/stable/c/72e8831079266749a7023618a0de2f289a9dced6
    Added Reference https://git.kernel.org/stable/c/a6ef60898ddaf1414592ce3e5b0d94276d631663
    Added Reference https://git.kernel.org/stable/c/e6965188f84a7883e6a0d3448e86b0cf29b24dfc
    Added Reference https://git.kernel.org/stable/c/f449a1edd7a13bb025aaf9342ea6f8bf92684bbf
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
No CVSS metrics available for this vulnerability.