CVE-2025-71233

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-71233
In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: Avoid creating sub-groups asynchronously The asynchronous creation of sub-groups by a delayed work could lead to a NULL pointer dereference when the driver directory is removed before the work completes. The crash can be easily reproduced with the following commands: # cd /sys/kernel/config/pci_ep/functions/pci_epf_test # for i in {1..20}; do mkdir test && rmdir test; done BUG: kernel NULL pointer dereference, address: 0000000000000088 ... Call Trace: configfs_register_group+0x3d/0x190 pci_epf_cfs_work+0x41/0x110 process_one_work+0x18f/0x350 worker_thread+0x25a/0x3a0 Fix this issue by using configfs_add_default_group() API which does not have the deadlock problem as configfs_register_group() and does not require the delayed work handler. [mani: slightly reworded the description and added stable list]

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/24a253c3aa6d9a2cde46158ce9782e023bfbf32d Patch
https://git.kernel.org/stable/c/5f609b3bffd4207cf9f2c9b41e1978457a5a1ea9 Patch
https://git.kernel.org/stable/c/73cee890adafa2c219bb865356e08e7f82423fe5 Patch
https://git.kernel.org/stable/c/7c5c7d06bd1f86d2c3ebe62be903a4ba42db4d2c Patch
https://git.kernel.org/stable/c/8cb905eca73944089a0db01443c7628a9e87012d Patch
https://git.kernel.org/stable/c/d9af3cf58bb4c8d6dea4166011c780756b1138b5 Patch
https://git.kernel.org/stable/c/fa9fb38f5fe9c80094c2138354d45cdc8d094d69 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
History

18 Mar 2026, 17:14

Type Values Removed Values Added
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CWE CWE-476
References () https://git.kernel.org/stable/c/24a253c3aa6d9a2cde46158ce9782e023bfbf32d - () https://git.kernel.org/stable/c/24a253c3aa6d9a2cde46158ce9782e023bfbf32d - Patch
References () https://git.kernel.org/stable/c/5f609b3bffd4207cf9f2c9b41e1978457a5a1ea9 - () https://git.kernel.org/stable/c/5f609b3bffd4207cf9f2c9b41e1978457a5a1ea9 - Patch
References () https://git.kernel.org/stable/c/73cee890adafa2c219bb865356e08e7f82423fe5 - () https://git.kernel.org/stable/c/73cee890adafa2c219bb865356e08e7f82423fe5 - Patch
References () https://git.kernel.org/stable/c/7c5c7d06bd1f86d2c3ebe62be903a4ba42db4d2c - () https://git.kernel.org/stable/c/7c5c7d06bd1f86d2c3ebe62be903a4ba42db4d2c - Patch
References () https://git.kernel.org/stable/c/8cb905eca73944089a0db01443c7628a9e87012d - () https://git.kernel.org/stable/c/8cb905eca73944089a0db01443c7628a9e87012d - Patch
References () https://git.kernel.org/stable/c/d9af3cf58bb4c8d6dea4166011c780756b1138b5 - () https://git.kernel.org/stable/c/d9af3cf58bb4c8d6dea4166011c780756b1138b5 - Patch
References () https://git.kernel.org/stable/c/fa9fb38f5fe9c80094c2138354d45cdc8d094d69 - () https://git.kernel.org/stable/c/fa9fb38f5fe9c80094c2138354d45cdc8d094d69 - Patch
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
First Time Linux
Linux linux Kernel

23 Feb 2026, 04:15

Type Values Removed Values Added
References
  • () https://git.kernel.org/stable/c/7c5c7d06bd1f86d2c3ebe62be903a4ba42db4d2c -
Summary
  • (es) En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta: PCI: endpoint: Evitar la creación asíncrona de subgrupos La creación asíncrona de subgrupos por un trabajo retrasado podría llevar a una desreferencia de puntero NULL cuando el directorio del controlador es eliminado antes de que el trabajo se complete. El fallo puede ser fácilmente reproducido con los siguientes comandos: # cd /sys/kernel/config/pci_ep/functions/pci_epf_test # for i in {1..20}; do mkdir test && rmdir test; done BUG: kernel NULL pointer dereference, address: 0000000000000088 ... Call Trace: configfs_register_group+0x3d/0x190 pci_epf_cfs_work+0x41/0x110 process_one_work+0x18f/0x350 worker_thread+0x25a/0x3a0 Soluciona este problema usando la API configfs_add_default_group() que no tiene el problema de interbloqueo como configfs_register_group() y no requiere el manejador de trabajo retrasado. [mani: se ha reformulado ligeramente la descripción y se ha añadido la lista estable]

19 Feb 2026, 16:27

Type Values Removed Values Added
References
  • () https://git.kernel.org/stable/c/5f609b3bffd4207cf9f2c9b41e1978457a5a1ea9 -
  • () https://git.kernel.org/stable/c/8cb905eca73944089a0db01443c7628a9e87012d -
  • () https://git.kernel.org/stable/c/fa9fb38f5fe9c80094c2138354d45cdc8d094d69 -

18 Feb 2026, 16:22

Type Values Removed Values Added
New CVE
Information

Published : 2026-02-18 16:22

Updated : 2026-03-18 17:14

NVD link : CVE-2025-71233

Mitre link : CVE-2025-71233

CVE.ORG link : CVE-2025-71233

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-476

NULL Pointer Dereference