CVE-2025-39846
pcmcia: Fix a NULL pointer dereference in __iodyn_find_io_region()
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.
INFO
Published Date :
Sept. 19, 2025, 4:15 p.m.
Last Modified :
Sept. 19, 2025, 4:15 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2025-39846
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
Solution
- Update the Linux kernel.
- Apply the provided patch.
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-2025-39846.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-39846 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-2025-39846
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).
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The following list is the news that have been mention
CVE-2025-39846 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-39846 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.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Sep. 19, 2025
Action Type Old Value New Value Added 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. Added Reference https://git.kernel.org/stable/c/2ee32c4c4f636e474cd8ab7c19a68cf36072ea93 Added Reference https://git.kernel.org/stable/c/44822df89e8f3386871d9cad563ece8e2fd8f0e7 Added Reference https://git.kernel.org/stable/c/4bd570f494124608a0696da070f00236a96fb610 Added Reference https://git.kernel.org/stable/c/5ff2826c998370bf7f9ae26fe802140d220e3510 Added Reference https://git.kernel.org/stable/c/b990c8c6ff50649ad3352507398e443b1e3527b2 Added Reference https://git.kernel.org/stable/c/ce3b7766276894d2fbb07e2047a171f9deb965de Added Reference https://git.kernel.org/stable/c/d7286005e8fde0a430dc180a9f46c088c7d74483 Added Reference https://git.kernel.org/stable/c/fafa7450075f41d232bc785a4ebcbf16374f2076