Vulnerability-Lookup

FKIE_CVE-2025-39920

Vulnerability from fkie_nvd - Published: 2025-10-01 08:15 - Updated: 2026-01-16 19:51

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: Add error handling for add_interval() in do_validate_mem() In the do_validate_mem(), the call to add_interval() does not handle errors. If kmalloc() fails in add_interval(), it could result in a null pointer being inserted into the linked list, leading to illegal memory access when sub_interval() is called next. This patch adds an error handling for the add_interval(). If add_interval() returns an error, the function will return early with the error code.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/06b26e3099207c94b3d1be8565aedc6edc4f0a60	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/289b58f8ff3198d091074a751d6b8f6827726f3e	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/369bf6e241506583f4ee7593c53b92e5a9f271b4	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/4a81f78caa53e0633cf311ca1526377d9bff7479	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/5b60ed401b47897352c520bc724c85aa908dedcc	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/85be7ef8c8e792a414940a38d94565dd48d2f236	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/8699358b6ac99b8ccc97ed9e6e3669ef8958ef7b	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ae184024ef31423e5beb44cf4f52999bbcf2fe5b	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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    }
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  "id": "CVE-2025-39920",
  "lastModified": "2026-01-16T19:51:49.047",
  "metrics": {
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          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
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}

CVE-2025-39920 (GCVE-0-2025-39920)

Vulnerability from cvelistv5 – Published: 2025-10-01 07:55 – Updated: 2025-11-03 17:44

Title

pcmcia: Add error handling for add_interval() in do_validate_mem()

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/5b60ed401b4789735…
	https://git.kernel.org/stable/c/ae184024ef31423e5…
	https://git.kernel.org/stable/c/85be7ef8c8e792a41…
	https://git.kernel.org/stable/c/06b26e3099207c94b…
	https://git.kernel.org/stable/c/8699358b6ac99b8cc…
	https://git.kernel.org/stable/c/289b58f8ff3198d09…
	https://git.kernel.org/stable/c/369bf6e241506583f…
	https://git.kernel.org/stable/c/4a81f78caa53e0633…

Impacted products

Vendor

Product

Version

Linux

Affected: 7b4884ca8853a638df0eb5d251d80d67777b8b1a , < 5b60ed401b47897352c520bc724c85aa908dedcc (git)
Affected: 7b4884ca8853a638df0eb5d251d80d67777b8b1a , < ae184024ef31423e5beb44cf4f52999bbcf2fe5b (git)
Affected: 7b4884ca8853a638df0eb5d251d80d67777b8b1a , < 85be7ef8c8e792a414940a38d94565dd48d2f236 (git)
Affected: 7b4884ca8853a638df0eb5d251d80d67777b8b1a , < 06b26e3099207c94b3d1be8565aedc6edc4f0a60 (git)
Affected: 7b4884ca8853a638df0eb5d251d80d67777b8b1a , < 8699358b6ac99b8ccc97ed9e6e3669ef8958ef7b (git)
Affected: 7b4884ca8853a638df0eb5d251d80d67777b8b1a , < 289b58f8ff3198d091074a751d6b8f6827726f3e (git)
Affected: 7b4884ca8853a638df0eb5d251d80d67777b8b1a , < 369bf6e241506583f4ee7593c53b92e5a9f271b4 (git)
Affected: 7b4884ca8853a638df0eb5d251d80d67777b8b1a , < 4a81f78caa53e0633cf311ca1526377d9bff7479 (git)

Linux

Affected: 2.6.34
Unaffected: 0 , < 2.6.34 (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": {
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          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
          }
        ],
        "title": "CVE Program Container"
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    "cna": {
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        }
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        },
        {
          "url": "https://git.kernel.org/stable/c/4a81f78caa53e0633cf311ca1526377d9bff7479"
        }
      ],
      "title": "pcmcia: Add error handling for add_interval() in do_validate_mem()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-39920",
    "datePublished": "2025-10-01T07:55:15.731Z",
    "dateReserved": "2025-04-16T07:20:57.147Z",
    "dateUpdated": "2025-11-03T17:44:40.739Z",
    "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-2025-39920

CVE-2025-39920 (GCVE-0-2025-39920)

Tags

Sightings

Nomenclature