Vulnerability-Lookup

FKIE_CVE-2025-38460

Vulnerability from fkie_nvd - Published: 2025-07-25 16:15 - Updated: 2025-12-22 21:50

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: atm: clip: Fix potential null-ptr-deref in to_atmarpd(). atmarpd is protected by RTNL since commit f3a0592b37b8 ("[ATM]: clip causes unregister hang"). However, it is not enough because to_atmarpd() is called without RTNL, especially clip_neigh_solicit() / neigh_ops->solicit() is unsleepable. Also, there is no RTNL dependency around atmarpd. Let's use a private mutex and RCU to protect access to atmarpd in to_atmarpd().

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/06935c50cfa3ac57cce80bba67b6d38ec1406e92	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3251ce3979f41bd228f77a7615f9dd616d06a110	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/36caab990b69ef4eec1d81c52a19f080b7daa059	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/706cc36477139c1616a9b2b96610a8bb520b7119	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/70eac9ba7ce25d99c1d99bbf4ddb058940f631f9	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a4c5785feb979cd996a99cfaad8bf353b2e79301	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ee4d9e4ddf3f9c4ee2ec0a3aad6196ee36d30e57	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f58e4270c73e7f086322978d585ea67c8076ce49	Patch
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html	Third Party Advisory

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	2.6.12
linux	linux_kernel	2.6.12
linux	linux_kernel	2.6.12
linux	linux_kernel	2.6.12
linux	linux_kernel	2.6.12
linux	linux_kernel	6.16
linux	linux_kernel	6.16
linux	linux_kernel	6.16
linux	linux_kernel	6.16
linux	linux_kernel	6.16
debian	debian_linux	11.0

JSON

To clipboard

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      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: atm: clip: Se corrige un posible error de referencia nulo en to_atmarpd(). atmarpd est\u00e1 protegido por RTNL desde el commit f3a0592b37b8 (\"[ATM]: clip provoca un bloqueo al cancelar el registro\"). Sin embargo, esto no es suficiente, ya que to_atmarpd() se llama sin RTNL, especialmente clip_neigh_solicit() / neigh_ops-\u0026gt;solicit() no se puede suspender. Adem\u00e1s, atmarpd no depende de RTNL. Usemos un mutex privado y una RCU para proteger el acceso a atmarpd en to_atmarpd()."
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CVE-2025-38460 (GCVE-0-2025-38460)

Vulnerability from cvelistv5 – Published: 2025-07-25 15:27 – Updated: 2025-11-03 17:38

Title

atm: clip: Fix potential null-ptr-deref in to_atmarpd().

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/a4c5785feb979cd99…
	https://git.kernel.org/stable/c/70eac9ba7ce25d99c…
	https://git.kernel.org/stable/c/3251ce3979f41bd22…
	https://git.kernel.org/stable/c/ee4d9e4ddf3f9c4ee…
	https://git.kernel.org/stable/c/06935c50cfa3ac57c…
	https://git.kernel.org/stable/c/36caab990b69ef4ee…
	https://git.kernel.org/stable/c/f58e4270c73e7f086…
	https://git.kernel.org/stable/c/706cc36477139c161…

Impacted products

Vendor

Product

Version

Linux

Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < a4c5785feb979cd996a99cfaad8bf353b2e79301 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 70eac9ba7ce25d99c1d99bbf4ddb058940f631f9 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 3251ce3979f41bd228f77a7615f9dd616d06a110 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ee4d9e4ddf3f9c4ee2ec0a3aad6196ee36d30e57 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 06935c50cfa3ac57cce80bba67b6d38ec1406e92 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 36caab990b69ef4eec1d81c52a19f080b7daa059 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < f58e4270c73e7f086322978d585ea67c8076ce49 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 706cc36477139c1616a9b2b96610a8bb520b7119 (git)

Linux

Affected: 2.6.12
Unaffected: 0 , < 2.6.12 (semver)
Unaffected: 5.4.296 , ≤ 5.4.* (semver)
Unaffected: 5.10.240 , ≤ 5.10.* (semver)
Unaffected: 5.15.189 , ≤ 5.15.* (semver)
Unaffected: 6.1.146 , ≤ 6.1.* (semver)
Unaffected: 6.6.99 , ≤ 6.6.* (semver)
Unaffected: 6.12.39 , ≤ 6.12.* (semver)
Unaffected: 6.15.7 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.39",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15.7",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\natm: clip: Fix potential null-ptr-deref in to_atmarpd().\n\natmarpd is protected by RTNL since commit f3a0592b37b8 (\"[ATM]: clip\ncauses unregister hang\").\n\nHowever, it is not enough because to_atmarpd() is called without RTNL,\nespecially clip_neigh_solicit() / neigh_ops-\u003esolicit() is unsleepable.\n\nAlso, there is no RTNL dependency around atmarpd.\n\nLet\u0027s use a private mutex and RCU to protect access to atmarpd in\nto_atmarpd()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-07-28T04:23:06.309Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/a4c5785feb979cd996a99cfaad8bf353b2e79301"
        },
        {
          "url": "https://git.kernel.org/stable/c/70eac9ba7ce25d99c1d99bbf4ddb058940f631f9"
        },
        {
          "url": "https://git.kernel.org/stable/c/3251ce3979f41bd228f77a7615f9dd616d06a110"
        },
        {
          "url": "https://git.kernel.org/stable/c/ee4d9e4ddf3f9c4ee2ec0a3aad6196ee36d30e57"
        },
        {
          "url": "https://git.kernel.org/stable/c/06935c50cfa3ac57cce80bba67b6d38ec1406e92"
        },
        {
          "url": "https://git.kernel.org/stable/c/36caab990b69ef4eec1d81c52a19f080b7daa059"
        },
        {
          "url": "https://git.kernel.org/stable/c/f58e4270c73e7f086322978d585ea67c8076ce49"
        },
        {
          "url": "https://git.kernel.org/stable/c/706cc36477139c1616a9b2b96610a8bb520b7119"
        }
      ],
      "title": "atm: clip: Fix potential null-ptr-deref in to_atmarpd().",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38460",
    "datePublished": "2025-07-25T15:27:38.608Z",
    "dateReserved": "2025-04-16T04:51:24.019Z",
    "dateUpdated": "2025-11-03T17:38:19.880Z",
    "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-2025-38460

CVE-2025-38460 (GCVE-0-2025-38460)

Tags

Sightings

Nomenclature