CVE-2026-53261 (GCVE-0-2026-53261)

Vulnerability from cvelistv5 – Published: 2026-06-25 08:39 – Updated: 2026-06-25 08:39
VLAI
Title
devlink: Release nested relation on devlink free
Summary
In the Linux kernel, the following vulnerability has been resolved: devlink: Release nested relation on devlink free devlink relation state is normally released from devl_unregister(), which calls devlink_rel_put(). This misses devlink instances that get a nested relation before registration and then fail probe before devl_register() is reached. That flow can happen for SFs. The child devlink gets linked to its parent before registration, then a later probe error calls devlink_free() directly. Since the instance was never registered, devl_unregister() is not called and devlink->rel is leaked. Release any pending relation from devlink_free() as well. The registered path is unchanged because devl_unregister() already clears devlink->rel before devlink_free() runs.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: c137743bce02b18c1537d4681aa515f7b80bf0a8 , < a9137286884703113b1c9e6403bd6d7d97b14754 (git)
Affected: c137743bce02b18c1537d4681aa515f7b80bf0a8 , < 927f96861f939c0b517d13ed27bf4fabbfc1cfb3 (git)
Affected: c137743bce02b18c1537d4681aa515f7b80bf0a8 , < 11324d52b0c63f4f202b35793c6507a575e9a689 (git)
Affected: c137743bce02b18c1537d4681aa515f7b80bf0a8 , < 3522b21fd7e1863d0734537737bd59f1b90d0190 (git)
Create a notification for this product.
Linux Linux Affected: 6.7
Unaffected: 0 , < 6.7 (semver)
Unaffected: 6.12.94 , ≤ 6.12.* (semver)
Unaffected: 6.18.36 , ≤ 6.18.* (semver)
Unaffected: 7.0.13 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/devlink/core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "a9137286884703113b1c9e6403bd6d7d97b14754",
              "status": "affected",
              "version": "c137743bce02b18c1537d4681aa515f7b80bf0a8",
              "versionType": "git"
            },
            {
              "lessThan": "927f96861f939c0b517d13ed27bf4fabbfc1cfb3",
              "status": "affected",
              "version": "c137743bce02b18c1537d4681aa515f7b80bf0a8",
              "versionType": "git"
            },
            {
              "lessThan": "11324d52b0c63f4f202b35793c6507a575e9a689",
              "status": "affected",
              "version": "c137743bce02b18c1537d4681aa515f7b80bf0a8",
              "versionType": "git"
            },
            {
              "lessThan": "3522b21fd7e1863d0734537737bd59f1b90d0190",
              "status": "affected",
              "version": "c137743bce02b18c1537d4681aa515f7b80bf0a8",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/devlink/core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.7"
            },
            {
              "lessThan": "6.7",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.94",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.36",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.94",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.36",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.13",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndevlink: Release nested relation on devlink free\n\ndevlink relation state is normally released from devl_unregister(), which\ncalls devlink_rel_put(). This misses devlink instances that get a nested\nrelation before registration and then fail probe before devl_register() is\nreached.\n\nThat flow can happen for SFs. The child devlink gets linked to its\nparent before registration, then a later probe error calls devlink_free()\ndirectly. Since the instance was never registered, devl_unregister() is not\ncalled and devlink-\u003erel is leaked.\n\nRelease any pending relation from devlink_free() as well. The registered\npath is unchanged because devl_unregister() already clears devlink-\u003erel\nbefore devlink_free() runs."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-25T08:39:49.891Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/a9137286884703113b1c9e6403bd6d7d97b14754"
        },
        {
          "url": "https://git.kernel.org/stable/c/927f96861f939c0b517d13ed27bf4fabbfc1cfb3"
        },
        {
          "url": "https://git.kernel.org/stable/c/11324d52b0c63f4f202b35793c6507a575e9a689"
        },
        {
          "url": "https://git.kernel.org/stable/c/3522b21fd7e1863d0734537737bd59f1b90d0190"
        }
      ],
      "title": "devlink: Release nested relation on devlink free",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-53261",
    "datePublished": "2026-06-25T08:39:49.891Z",
    "dateReserved": "2026-06-09T07:44:35.394Z",
    "dateUpdated": "2026-06-25T08:39:49.891Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-53261",
      "date": "2026-06-27",
      "epss": "0.00163",
      "percentile": "0.05891"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-53261\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-06-25T09:16:44.100\",\"lastModified\":\"2026-06-25T09:16:44.100\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndevlink: Release nested relation on devlink free\\n\\ndevlink relation state is normally released from devl_unregister(), which\\ncalls devlink_rel_put(). This misses devlink instances that get a nested\\nrelation before registration and then fail probe before devl_register() is\\nreached.\\n\\nThat flow can happen for SFs. The child devlink gets linked to its\\nparent before registration, then a later probe error calls devlink_free()\\ndirectly. Since the instance was never registered, devl_unregister() is not\\ncalled and devlink-\u003erel is leaked.\\n\\nRelease any pending relation from devlink_free() as well. The registered\\npath is unchanged because devl_unregister() already clears devlink-\u003erel\\nbefore devlink_free() runs.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"net/devlink/core.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"c137743bce02b18c1537d4681aa515f7b80bf0a8\",\"lessThan\":\"a9137286884703113b1c9e6403bd6d7d97b14754\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c137743bce02b18c1537d4681aa515f7b80bf0a8\",\"lessThan\":\"927f96861f939c0b517d13ed27bf4fabbfc1cfb3\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c137743bce02b18c1537d4681aa515f7b80bf0a8\",\"lessThan\":\"11324d52b0c63f4f202b35793c6507a575e9a689\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c137743bce02b18c1537d4681aa515f7b80bf0a8\",\"lessThan\":\"3522b21fd7e1863d0734537737bd59f1b90d0190\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"net/devlink/core.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.7\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.7\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.94\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.36\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.0.13\",\"lessThanOrEqual\":\"7.0.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/11324d52b0c63f4f202b35793c6507a575e9a689\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/3522b21fd7e1863d0734537737bd59f1b90d0190\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/927f96861f939c0b517d13ed27bf4fabbfc1cfb3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a9137286884703113b1c9e6403bd6d7d97b14754\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.