CVE-2025-39846

high

Description

In the Linux kernel, the following vulnerability has been resolved: pcmcia: Fix a NULL pointer dereference in __iodyn_find_io_region() In __iodyn_find_io_region(), pcmcia_make_resource() is assigned to res and used in pci_bus_alloc_resource(). There is a dereference of res in pci_bus_alloc_resource(), which could lead to a NULL pointer dereference on failure of pcmcia_make_resource(). Fix this bug by adding a check of res.

References

https://git.kernel.org/stable/c/fafa7450075f41d232bc785a4ebcbf16374f2076

https://git.kernel.org/stable/c/d7286005e8fde0a430dc180a9f46c088c7d74483

https://git.kernel.org/stable/c/ce3b7766276894d2fbb07e2047a171f9deb965de

https://git.kernel.org/stable/c/b990c8c6ff50649ad3352507398e443b1e3527b2

https://git.kernel.org/stable/c/5ff2826c998370bf7f9ae26fe802140d220e3510

https://git.kernel.org/stable/c/4bd570f494124608a0696da070f00236a96fb610

https://git.kernel.org/stable/c/44822df89e8f3386871d9cad563ece8e2fd8f0e7

https://git.kernel.org/stable/c/2ee32c4c4f636e474cd8ab7c19a68cf36072ea93

Details

Source: Mitre, NVD

Published: 2025-09-19

Updated: 2025-09-22

Risk Information

CVSS v2

Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00024