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 ...

Metrics

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

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References
Link Providers
https://git.kernel.org/stable/c/13aff3b8a7184281b134698704d6c06863a8361b cve-icon cve-icon
https://git.kernel.org/stable/c/1c9ba455b5073253ceaadae4859546e38e8261fe cve-icon cve-icon
https://git.kernel.org/stable/c/3d8c517f6eb27e47b1a198e05f8023038329b40b cve-icon cve-icon
https://git.kernel.org/stable/c/63f511d3855f7f4b35dd63dbc58fc3d935a81268 cve-icon cve-icon
https://git.kernel.org/stable/c/72e8831079266749a7023618a0de2f289a9dced6 cve-icon cve-icon
https://git.kernel.org/stable/c/a6ef60898ddaf1414592ce3e5b0d94276d631663 cve-icon cve-icon
https://git.kernel.org/stable/c/e6965188f84a7883e6a0d3448e86b0cf29b24dfc cve-icon cve-icon
https://git.kernel.org/stable/c/f449a1edd7a13bb025aaf9342ea6f8bf92684bbf cve-icon cve-icon
History

Tue, 16 Dec 2025 14:00:00 +0000

Type Values Removed Values 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 ...
Title scsi: target: tcm_loop: Fix segfault in tcm_loop_tpg_address_show()
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2025-12-16T13:57:21.835Z

Reserved: 2025-12-16T13:41:40.258Z

Link: CVE-2025-68229

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2025-12-16T14:15:57.067

Modified: 2025-12-16T14:15:57.067

Link: CVE-2025-68229

cve-icon Redhat

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cve-icon OpenCVE Enrichment

No data.