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Vulnerabilities

Vulnerability · CVE-2025-39846

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_reso

Published Sep 19, 2025 · catalog updated May 12, 2026 · Linux Linux

Check if you run it

No confirmed exploitation is on record for CVE-2025-39846. EPSS is 0.16%. Act only if a listed version of Linux Linux is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
None0.0
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.16%
Remediation
Version ranges on file
Affected products
vendor Linux Linux 49b1153adfe18a3cce7e70aa26c690f275917cd0 <d7286005e8fde0a430dc180a9f46c088c7d74483

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Linux Linux 49b1153adfe18a3cce7e70aa26c690f275917cd0 <d7286005e8fde0a430dc180a9f46c088c7d7448349b1153adfe18a3cce7e70aa26c690f275917cd0 <d7286005e8fde0a430dc180a9f46c088c7d74483

How to fix CVE-2025-39846

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-39846. EPSS is 0.16%. Act only if a listed version of Linux Linux is installed.

Which versions are affected?

Compare what you have installed with Linux Linux 49b1153adfe18a3cce7e70aa26c690f275917cd0 <d7286005e8fde0a430dc180a9f46c088c7d74483 49b1153adfe18a3cce7e70aa26c690f275917cd0 <d7286005e8fde0a430dc180a9f46c088c7d74483. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.16%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 19, 2025 · EUVD

    Detected

    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

  2. May 12, 2026 · EUVD

    Updated

    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

Sources

  • CVE.orgVulnerability recordCVE-2025-39846

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-39846

    30-day exploitation probability 0.16%

    first.org
  • EUVDVulnerability recordEUVD-2025-30354

    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

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 23, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.