CVE-2025-39846

MEDIUM

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.

CVSS v3.1 Score

5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Published: 9/19/2025Modified: 10/19/2026

Related Intelligence (1)

CRITICALData Breach

Siemens SIMATIC

<p><a href="https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-134-10.json"><strong>View CSAF</strong></a></p> <h2>Summary</h2> <p><strong>SIMATIC CN 4100 contains multiple vulnerabilities which could potentially lead to a compromise in availability, integrity and confidentiality. Siemens has released a new version for SIMATIC CN 4100 and recommends to update to the late

CVE-2024-47704CVE-2024-57924
CISA Advisories

References (12)

https://git.kernel.org/stable/c/2ee32c4c4f636e474cd8ab7c19a68cf36072ea93Patchhttps://git.kernel.org/stable/c/44822df89e8f3386871d9cad563ece8e2fd8f0e7Patchhttps://git.kernel.org/stable/c/4bd570f494124608a0696da070f00236a96fb610Patchhttps://git.kernel.org/stable/c/5ff2826c998370bf7f9ae26fe802140d220e3510Patchhttps://git.kernel.org/stable/c/b990c8c6ff50649ad3352507398e443b1e3527b2Patchhttps://git.kernel.org/stable/c/ce3b7766276894d2fbb07e2047a171f9deb965dePatchhttps://git.kernel.org/stable/c/d7286005e8fde0a430dc180a9f46c088c7d74483Patchhttps://git.kernel.org/stable/c/fafa7450075f41d232bc785a4ebcbf16374f2076Patchhttps://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlMailing ListThird Party Advisoryhttps://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlMailing ListThird Party Advisoryhttps://cert-portal.siemens.com/productcert/html/ssa-032379.htmlhttps://cert-portal.siemens.com/productcert/html/ssa-089022.html