Vulnerability-Lookup

FKIE_CVE-2025-38180

Vulnerability from fkie_nvd - Published: 2025-07-04 14:15 - Updated: 2026-07-30 06:22

Severity

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

Summary

In the Linux kernel, the following vulnerability has been resolved: net: atm: fix /proc/net/atm/lec handling /proc/net/atm/lec must ensure safety against dev_lec[] changes. It appears it had dev_put() calls without prior dev_hold(), leading to imbalance and UAF.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/5fe1b23a2f87f43aeeac51e08819cbc6fd808cbc	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/9b9aeb3ada44d8abea1e31e4446113f460848ae4	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a5e3a144268899f1a8c445c8a3bfa15873ba85e8	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ca3829c18c8d0ceb656605d3bff6bb3dfb078589	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d03b79f459c7935cff830d98373474f440bd03ae	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e612c4b014f5808fbc6beae21f5ccaca5e76a2f8	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f2d1443b18806640abdb530e88009af7be2588e7	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/fcfccf56f4eba7d00aa2d33c7bb1b33083237742	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
debian	debian_linux	11.0

JSON

To clipboard

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  "affected": [
    {
      "affectedData": [
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/atm/lec.c"
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              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.16",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
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    }
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              "vulnerable": true
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          "negate": false,
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        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: atm: fix /proc/net/atm/lec handling\n\n/proc/net/atm/lec must ensure safety against dev_lec[] changes.\n\nIt appears it had dev_put() calls without prior dev_hold(),\nleading to imbalance and UAF."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: atm: fix /proc/net/atm/lec. El manejo de /proc/net/atm/lec debe garantizar la seguridad contra cambios en dev_lec[]. Al parecer, se invocaban llamadas a dev_put() sin dev_hold() previo, lo que provocaba desequilibrio y UAF."
    }
  ],
  "id": "CVE-2025-38180",
  "lastModified": "2026-07-30T06:22:58.053",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-38180",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-10T20:41:57.337618Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-07-04T14:15:24.700",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
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}

CVE-2025-38180 (GCVE-0-2025-38180)

Vulnerability from cvelistv5 – Published: 2025-07-04 13:37 – Updated: 2026-08-05 12:00

Title

net: atm: fix /proc/net/atm/lec handling

Summary

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-10 20:41 UTC

Assigner

Linux mitre root

References

10 references

URL	Tags
https://git.kernel.org/stable/c/fcfccf56f4eba7d00…
https://git.kernel.org/stable/c/f2d1443b18806640a…
https://git.kernel.org/stable/c/ca3829c18c8d0ceb6…
https://git.kernel.org/stable/c/e612c4b014f5808fb…
https://git.kernel.org/stable/c/a5e3a144268899f1a…
https://git.kernel.org/stable/c/5fe1b23a2f87f43ae…
https://git.kernel.org/stable/c/9b9aeb3ada44d8abe…
https://git.kernel.org/stable/c/d03b79f459c7935cf…
https://lists.debian.org/debian-lts-announce/2025…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < fcfccf56f4eba7d00aa2d33c7bb1b33083237742 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < f2d1443b18806640abdb530e88009af7be2588e7 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ca3829c18c8d0ceb656605d3bff6bb3dfb078589 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < e612c4b014f5808fbc6beae21f5ccaca5e76a2f8 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < a5e3a144268899f1a8c445c8a3bfa15873ba85e8 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 5fe1b23a2f87f43aeeac51e08819cbc6fd808cbc (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 9b9aeb3ada44d8abea1e31e4446113f460848ae4 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < d03b79f459c7935cff830d98373474f440bd03ae (git)
Linux	Linux	Affected: 2.6.12 Unaffected: 0 , < 2.6.12 (semver) Unaffected: 5.4.295 , ≤ 5.4.* (semver) Unaffected: 5.10.239 , ≤ 5.10.* (semver) Unaffected: 5.15.186 , ≤ 5.15.* (semver) Unaffected: 6.1.142 , ≤ 6.1.* (semver) Unaffected: 6.6.95 , ≤ 6.6.* (semver) Unaffected: 6.12.35 , ≤ 6.12.* (semver) Unaffected: 6.15.4 , ≤ 6.15.* (semver) Unaffected: 6.16 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T17:35:04.821Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-38180",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-10T20:41:57.337618Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
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          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-11T18:44:17.953Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/atm/lec.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "fcfccf56f4eba7d00aa2d33c7bb1b33083237742",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "f2d1443b18806640abdb530e88009af7be2588e7",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "ca3829c18c8d0ceb656605d3bff6bb3dfb078589",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "e612c4b014f5808fbc6beae21f5ccaca5e76a2f8",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "a5e3a144268899f1a8c445c8a3bfa15873ba85e8",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "5fe1b23a2f87f43aeeac51e08819cbc6fd808cbc",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "9b9aeb3ada44d8abea1e31e4446113f460848ae4",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "d03b79f459c7935cff830d98373474f440bd03ae",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/atm/lec.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.12"
            },
            {
              "lessThan": "2.6.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.295",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.239",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.186",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.142",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.95",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.35",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.16",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.295",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.239",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.186",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.142",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.95",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.35",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15.4",
                  "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\nnet: atm: fix /proc/net/atm/lec handling\n\n/proc/net/atm/lec must ensure safety against dev_lec[] changes.\n\nIt appears it had dev_put() calls without prior dev_hold(),\nleading to imbalance and UAF."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The vulnerability is triggered by reading the local procfs file /proc/net/atm/lec; no network protocol data reaches the defective code. Exploitation requires a local account or any local code execution context on the host network namespace.\nAC:L - The unbalanced dev_put() fires deterministically on every read() of the file \u2014 no race must be won, and the attacker controls how many times to repeat it to drive the net_device refcount arbitrarily negative. The secondary dev_lec[] race is also attacker-paced via a tight read loop.\nPR:L - /proc/net/atm/lec is created with mode 0444, so any unprivileged local user can read it with no capability check on the path; the lec module itself is autoloadable by an unprivileged user via request_module(\"lec\") in do_vcc_ioctl() before any capable() test. CAP_NET_ADMIN is only needed to configure the LANE interface, which is a property of the target deployment rather than of the attacker.\nUI:N - The attacker triggers the defect entirely on their own by reading the procfs file; no victim action or cooperation of any kind is needed.\nS:U - The corrupted net_device object and the resulting memory corruption stay within the kernel\u0027s own security authority. No VM, IOMMU, or sandbox boundary is crossed.\nC:H - The refcount underflow lets a live net_device be freed while still referenced, and the missing lec_mutex allows the seq_show path to dereference a freed device; a UAF on a large kmalloc\u0027d object gives the attacker control over the reclaimed contents and a kernel-memory read primitive.\nI:H - Premature free of an in-use net_device is a use-after-free on a structure dense with function pointers and list heads, sprayable for arbitrary write and control-flow hijack leading to privilege escalation.\nA:H - Driving the reference count below one reaches BUG_ON(netdev_refcnt_read(dev) != 1) in netdev_run_todo(), and use of the freed device oopses the kernel; either outcome is a full system crash reachable by an unprivileged loop."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:00:10.648Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/fcfccf56f4eba7d00aa2d33c7bb1b33083237742"
        },
        {
          "url": "https://git.kernel.org/stable/c/f2d1443b18806640abdb530e88009af7be2588e7"
        },
        {
          "url": "https://git.kernel.org/stable/c/ca3829c18c8d0ceb656605d3bff6bb3dfb078589"
        },
        {
          "url": "https://git.kernel.org/stable/c/e612c4b014f5808fbc6beae21f5ccaca5e76a2f8"
        },
        {
          "url": "https://git.kernel.org/stable/c/a5e3a144268899f1a8c445c8a3bfa15873ba85e8"
        },
        {
          "url": "https://git.kernel.org/stable/c/5fe1b23a2f87f43aeeac51e08819cbc6fd808cbc"
        },
        {
          "url": "https://git.kernel.org/stable/c/9b9aeb3ada44d8abea1e31e4446113f460848ae4"
        },
        {
          "url": "https://git.kernel.org/stable/c/d03b79f459c7935cff830d98373474f440bd03ae"
        }
      ],
      "title": "net: atm: fix /proc/net/atm/lec handling",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38180",
    "datePublished": "2025-07-04T13:37:08.258Z",
    "dateReserved": "2025-04-16T04:51:23.992Z",
    "dateUpdated": "2026-08-05T12:00:10.648Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

FKIE_CVE-2025-38180

CVE-2025-38180 (GCVE-0-2025-38180)

Tags

Sightings

Nomenclature

Related by attack behaviour