Vulnerability-Lookup

FKIE_CVE-2025-71084

Vulnerability from fkie_nvd - Published: 2026-01-13 16:16 - Updated: 2026-01-14 16:26

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: RDMA/cm: Fix leaking the multicast GID table reference If the CM ID is destroyed while the CM event for multicast creating is still queued the cancel_work_sync() will prevent the work from running which also prevents destroying the ah_attr. This leaks a refcount and triggers a WARN: GID entry ref leak for dev syz1 index 2 ref=573 WARNING: CPU: 1 PID: 655 at drivers/infiniband/core/cache.c:809 release_gid_table drivers/infiniband/core/cache.c:806 [inline] WARNING: CPU: 1 PID: 655 at drivers/infiniband/core/cache.c:809 gid_table_release_one+0x284/0x3cc drivers/infiniband/core/cache.c:886 Destroy the ah_attr after canceling the work, it is safe to call this twice.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3ba6d01c4b3c584264dc733c6a2ecc5bbc8e0bb5
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/57f3cb6c84159d12ba343574df2115fb18dd83ca
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/5cb34bb5fd726491b809efbeb5cfd63ae5bf9cf3
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ab668a58c4a2ccb6d54add7a76f2f955d15d0196
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c0acdee513239e1d6e1b490f56be0e6837dfd162

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/cm: Fix leaking the multicast GID table reference\n\nIf the CM ID is destroyed while the CM event for multicast creating is\nstill queued the cancel_work_sync() will prevent the work from running\nwhich also prevents destroying the ah_attr. This leaks a refcount and\ntriggers a WARN:\n\n   GID entry ref leak for dev syz1 index 2 ref=573\n   WARNING: CPU: 1 PID: 655 at drivers/infiniband/core/cache.c:809 release_gid_table drivers/infiniband/core/cache.c:806 [inline]\n   WARNING: CPU: 1 PID: 655 at drivers/infiniband/core/cache.c:809 gid_table_release_one+0x284/0x3cc drivers/infiniband/core/cache.c:886\n\nDestroy the ah_attr after canceling the work, it is safe to call this\ntwice."
    }
  ],
  "id": "CVE-2025-71084",
  "lastModified": "2026-01-14T16:26:00.933",
  "metrics": {},
  "published": "2026-01-13T16:16:08.007",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3ba6d01c4b3c584264dc733c6a2ecc5bbc8e0bb5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/57f3cb6c84159d12ba343574df2115fb18dd83ca"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5cb34bb5fd726491b809efbeb5cfd63ae5bf9cf3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ab668a58c4a2ccb6d54add7a76f2f955d15d0196"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c0acdee513239e1d6e1b490f56be0e6837dfd162"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

CVE-2025-71084 (GCVE-0-2025-71084)

Vulnerability from cvelistv5 – Published: 2026-01-13 15:34 – Updated: 2026-01-13 15:34

Title

RDMA/cm: Fix leaking the multicast GID table reference

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/ab668a58c4a2ccb6d…
	https://git.kernel.org/stable/c/c0acdee513239e1d6…
	https://git.kernel.org/stable/c/5cb34bb5fd726491b…
	https://git.kernel.org/stable/c/3ba6d01c4b3c58426…
	https://git.kernel.org/stable/c/57f3cb6c84159d12b…

Impacted products

Vendor

Product

Version

Linux

Affected: fe454dc31e84f8c14cb8942fcb61666c9f40745b , < ab668a58c4a2ccb6d54add7a76f2f955d15d0196 (git)
Affected: fe454dc31e84f8c14cb8942fcb61666c9f40745b , < c0acdee513239e1d6e1b490f56be0e6837dfd162 (git)
Affected: fe454dc31e84f8c14cb8942fcb61666c9f40745b , < 5cb34bb5fd726491b809efbeb5cfd63ae5bf9cf3 (git)
Affected: fe454dc31e84f8c14cb8942fcb61666c9f40745b , < 3ba6d01c4b3c584264dc733c6a2ecc5bbc8e0bb5 (git)
Affected: fe454dc31e84f8c14cb8942fcb61666c9f40745b , < 57f3cb6c84159d12ba343574df2115fb18dd83ca (git)
Affected: 60d613b39e8d0c9f3b526e9c96445422b4562d76 (git)
Affected: a3262b3884dd67b4c5632ce7cdf9cff9d1a575d4 (git)

Linux

Affected: 5.12
Unaffected: 0 , < 5.12 (semver)
Unaffected: 6.1.160 , ≤ 6.1.* (semver)
Unaffected: 6.6.120 , ≤ 6.6.* (semver)
Unaffected: 6.12.64 , ≤ 6.12.* (semver)
Unaffected: 6.18.4 , ≤ 6.18.* (semver)
Unaffected: 6.19-rc4 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/infiniband/core/cma.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "ab668a58c4a2ccb6d54add7a76f2f955d15d0196",
              "status": "affected",
              "version": "fe454dc31e84f8c14cb8942fcb61666c9f40745b",
              "versionType": "git"
            },
            {
              "lessThan": "c0acdee513239e1d6e1b490f56be0e6837dfd162",
              "status": "affected",
              "version": "fe454dc31e84f8c14cb8942fcb61666c9f40745b",
              "versionType": "git"
            },
            {
              "lessThan": "5cb34bb5fd726491b809efbeb5cfd63ae5bf9cf3",
              "status": "affected",
              "version": "fe454dc31e84f8c14cb8942fcb61666c9f40745b",
              "versionType": "git"
            },
            {
              "lessThan": "3ba6d01c4b3c584264dc733c6a2ecc5bbc8e0bb5",
              "status": "affected",
              "version": "fe454dc31e84f8c14cb8942fcb61666c9f40745b",
              "versionType": "git"
            },
            {
              "lessThan": "57f3cb6c84159d12ba343574df2115fb18dd83ca",
              "status": "affected",
              "version": "fe454dc31e84f8c14cb8942fcb61666c9f40745b",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "60d613b39e8d0c9f3b526e9c96445422b4562d76",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "a3262b3884dd67b4c5632ce7cdf9cff9d1a575d4",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/infiniband/core/cma.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.12"
            },
            {
              "lessThan": "5.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.160",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.120",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.64",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19-rc4",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.160",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.120",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.64",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.4",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19-rc4",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.10.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.11.3",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/cm: Fix leaking the multicast GID table reference\n\nIf the CM ID is destroyed while the CM event for multicast creating is\nstill queued the cancel_work_sync() will prevent the work from running\nwhich also prevents destroying the ah_attr. This leaks a refcount and\ntriggers a WARN:\n\n   GID entry ref leak for dev syz1 index 2 ref=573\n   WARNING: CPU: 1 PID: 655 at drivers/infiniband/core/cache.c:809 release_gid_table drivers/infiniband/core/cache.c:806 [inline]\n   WARNING: CPU: 1 PID: 655 at drivers/infiniband/core/cache.c:809 gid_table_release_one+0x284/0x3cc drivers/infiniband/core/cache.c:886\n\nDestroy the ah_attr after canceling the work, it is safe to call this\ntwice."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-13T15:34:47.665Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/ab668a58c4a2ccb6d54add7a76f2f955d15d0196"
        },
        {
          "url": "https://git.kernel.org/stable/c/c0acdee513239e1d6e1b490f56be0e6837dfd162"
        },
        {
          "url": "https://git.kernel.org/stable/c/5cb34bb5fd726491b809efbeb5cfd63ae5bf9cf3"
        },
        {
          "url": "https://git.kernel.org/stable/c/3ba6d01c4b3c584264dc733c6a2ecc5bbc8e0bb5"
        },
        {
          "url": "https://git.kernel.org/stable/c/57f3cb6c84159d12ba343574df2115fb18dd83ca"
        }
      ],
      "title": "RDMA/cm: Fix leaking the multicast GID table reference",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-71084",
    "datePublished": "2026-01-13T15:34:47.665Z",
    "dateReserved": "2026-01-13T15:30:19.649Z",
    "dateUpdated": "2026-01-13T15:34:47.665Z",
    "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-2025-71084

CVE-2025-71084 (GCVE-0-2025-71084)

Tags

Sightings

Nomenclature