Vulnerability-Lookup

FKIE_CVE-2025-39846

Vulnerability from fkie_nvd - Published: 2025-09-19 16:15 - Updated: 2026-01-20 15:22

Severity ?

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

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

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2ee32c4c4f636e474cd8ab7c19a68cf36072ea93	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/44822df89e8f3386871d9cad563ece8e2fd8f0e7	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/4bd570f494124608a0696da070f00236a96fb610	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/5ff2826c998370bf7f9ae26fe802140d220e3510	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b990c8c6ff50649ad3352507398e443b1e3527b2	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ce3b7766276894d2fbb07e2047a171f9deb965de	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d7286005e8fde0a430dc180a9f46c088c7d74483	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/fafa7450075f41d232bc785a4ebcbf16374f2076	Patch
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html	Third Party Advisory, Mailing List
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html	Third Party Advisory, Mailing List

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	6.17
linux	linux_kernel	6.17
linux	linux_kernel	6.17
linux	linux_kernel	6.17
debian	debian_linux	11.0

JSON

To clipboard

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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npcmcia: Fix a NULL pointer dereference in __iodyn_find_io_region()\n\nIn __iodyn_find_io_region(), pcmcia_make_resource() is assigned to\nres and used in pci_bus_alloc_resource(). There is a dereference of res\nin pci_bus_alloc_resource(), which could lead to a NULL pointer\ndereference on failure of pcmcia_make_resource().\n\nFix this bug by adding a check of res."
    }
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  "id": "CVE-2025-39846",
  "lastModified": "2026-01-20T15:22:04.433",
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          "attackVector": "LOCAL",
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          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
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      "source": "nvd@nist.gov",
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}

CVE-2025-39846 (GCVE-0-2025-39846)

Vulnerability from cvelistv5 – Published: 2025-09-19 15:26 – Updated: 2025-11-03 17:44

Title

pcmcia: Fix a NULL pointer dereference in __iodyn_find_io_region()

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/b990c8c6ff50649ad…
	https://git.kernel.org/stable/c/5ff2826c998370bf7…
	https://git.kernel.org/stable/c/4bd570f494124608a…
	https://git.kernel.org/stable/c/ce3b7766276894d2f…
	https://git.kernel.org/stable/c/2ee32c4c4f636e474…
	https://git.kernel.org/stable/c/fafa7450075f41d23…
	https://git.kernel.org/stable/c/d7286005e8fde0a43…
	https://git.kernel.org/stable/c/44822df89e8f33868…

Impacted products

Vendor

Product

Version

Linux

Affected: 49b1153adfe18a3cce7e70aa26c690f275917cd0 , < b990c8c6ff50649ad3352507398e443b1e3527b2 (git)
Affected: 49b1153adfe18a3cce7e70aa26c690f275917cd0 , < 5ff2826c998370bf7f9ae26fe802140d220e3510 (git)
Affected: 49b1153adfe18a3cce7e70aa26c690f275917cd0 , < 4bd570f494124608a0696da070f00236a96fb610 (git)
Affected: 49b1153adfe18a3cce7e70aa26c690f275917cd0 , < ce3b7766276894d2fbb07e2047a171f9deb965de (git)
Affected: 49b1153adfe18a3cce7e70aa26c690f275917cd0 , < 2ee32c4c4f636e474cd8ab7c19a68cf36072ea93 (git)
Affected: 49b1153adfe18a3cce7e70aa26c690f275917cd0 , < fafa7450075f41d232bc785a4ebcbf16374f2076 (git)
Affected: 49b1153adfe18a3cce7e70aa26c690f275917cd0 , < d7286005e8fde0a430dc180a9f46c088c7d74483 (git)
Affected: 49b1153adfe18a3cce7e70aa26c690f275917cd0 , < 44822df89e8f3386871d9cad563ece8e2fd8f0e7 (git)

Linux

Affected: 2.6.35
Unaffected: 0 , < 2.6.35 (semver)
Unaffected: 5.4.299 , ≤ 5.4.* (semver)
Unaffected: 5.10.243 , ≤ 5.10.* (semver)
Unaffected: 5.15.192 , ≤ 5.15.* (semver)
Unaffected: 6.1.151 , ≤ 6.1.* (semver)
Unaffected: 6.6.105 , ≤ 6.6.* (semver)
Unaffected: 6.12.46 , ≤ 6.12.* (semver)
Unaffected: 6.16.6 , ≤ 6.16.* (semver)
Unaffected: 6.17 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
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        "providerMetadata": {
          "dateUpdated": "2025-11-03T17:44:02.991Z",
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          },
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            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
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          "product": "Linux",
          "programFiles": [
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              "status": "unaffected",
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      "descriptions": [
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npcmcia: Fix a NULL pointer dereference in __iodyn_find_io_region()\n\nIn __iodyn_find_io_region(), pcmcia_make_resource() is assigned to\nres and used in pci_bus_alloc_resource(). There is a dereference of res\nin pci_bus_alloc_resource(), which could lead to a NULL pointer\ndereference on failure of pcmcia_make_resource().\n\nFix this bug by adding a check of res."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-29T06:00:56.145Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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        },
        {
          "url": "https://git.kernel.org/stable/c/4bd570f494124608a0696da070f00236a96fb610"
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        {
          "url": "https://git.kernel.org/stable/c/44822df89e8f3386871d9cad563ece8e2fd8f0e7"
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      ],
      "title": "pcmcia: Fix a NULL pointer dereference in __iodyn_find_io_region()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-39846",
    "datePublished": "2025-09-19T15:26:19.932Z",
    "dateReserved": "2025-04-16T07:20:57.141Z",
    "dateUpdated": "2025-11-03T17:44:02.991Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2025-39846

CVE-2025-39846 (GCVE-0-2025-39846)

Tags

Sightings

Nomenclature