CVE-2026-43317 (GCVE-0-2026-43317)

Vulnerability from cvelistv5 – Published: 2026-05-08 13:26 – Updated: 2026-05-08 13:26
VLAI?
Title
most: core: fix leak on early registration failure
Summary
In the Linux kernel, the following vulnerability has been resolved: most: core: fix leak on early registration failure A recent commit fixed a resource leak on early registration failures but for some reason left out the first error path which still leaks the resources associated with the interface. Fix up also the first error path so that the interface is always released on errors.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 723de0f9171eeb49a3ae98cae82ebbbb992b3a7c , < bbfe49ffb892bddf32c34bea95b7ff0fc30affb5 (git)
Affected: 723de0f9171eeb49a3ae98cae82ebbbb992b3a7c , < f1ba620f9e8d7291f80c0554e4b820f5fb30e819 (git)
Affected: 723de0f9171eeb49a3ae98cae82ebbbb992b3a7c , < 5fd4396c2e48e90cc2597a86c18227d56ea845f0 (git)
Affected: 723de0f9171eeb49a3ae98cae82ebbbb992b3a7c , < 2c198c272f9c9213b0fdf6b4a879f445c574f416 (git)
Create a notification for this product.
    Linux Linux Affected: 5.6
Unaffected: 0 , < 5.6 (semver)
Unaffected: 6.12.75 , ≤ 6.12.* (semver)
Unaffected: 6.18.16 , ≤ 6.18.* (semver)
Unaffected: 6.19.6 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (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": [
            "drivers/most/core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "bbfe49ffb892bddf32c34bea95b7ff0fc30affb5",
              "status": "affected",
              "version": "723de0f9171eeb49a3ae98cae82ebbbb992b3a7c",
              "versionType": "git"
            },
            {
              "lessThan": "f1ba620f9e8d7291f80c0554e4b820f5fb30e819",
              "status": "affected",
              "version": "723de0f9171eeb49a3ae98cae82ebbbb992b3a7c",
              "versionType": "git"
            },
            {
              "lessThan": "5fd4396c2e48e90cc2597a86c18227d56ea845f0",
              "status": "affected",
              "version": "723de0f9171eeb49a3ae98cae82ebbbb992b3a7c",
              "versionType": "git"
            },
            {
              "lessThan": "2c198c272f9c9213b0fdf6b4a879f445c574f416",
              "status": "affected",
              "version": "723de0f9171eeb49a3ae98cae82ebbbb992b3a7c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/most/core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.6"
            },
            {
              "lessThan": "5.6",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.75",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.75",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.16",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.6",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmost: core: fix leak on early registration failure\n\nA recent commit fixed a resource leak on early registration failures but\nfor some reason left out the first error path which still leaks the\nresources associated with the interface.\n\nFix up also the first error path so that the interface is always\nreleased on errors."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-08T13:26:12.899Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/bbfe49ffb892bddf32c34bea95b7ff0fc30affb5"
        },
        {
          "url": "https://git.kernel.org/stable/c/f1ba620f9e8d7291f80c0554e4b820f5fb30e819"
        },
        {
          "url": "https://git.kernel.org/stable/c/5fd4396c2e48e90cc2597a86c18227d56ea845f0"
        },
        {
          "url": "https://git.kernel.org/stable/c/2c198c272f9c9213b0fdf6b4a879f445c574f416"
        }
      ],
      "title": "most: core: fix leak on early registration failure",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-43317",
    "datePublished": "2026-05-08T13:26:12.899Z",
    "dateReserved": "2026-05-01T14:12:56.001Z",
    "dateUpdated": "2026-05-08T13:26:12.899Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-43317\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-05-08T14:16:40.243\",\"lastModified\":\"2026-05-08T14:16:40.243\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmost: core: fix leak on early registration failure\\n\\nA recent commit fixed a resource leak on early registration failures but\\nfor some reason left out the first error path which still leaks the\\nresources associated with the interface.\\n\\nFix up also the first error path so that the interface is always\\nreleased on errors.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2c198c272f9c9213b0fdf6b4a879f445c574f416\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5fd4396c2e48e90cc2597a86c18227d56ea845f0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/bbfe49ffb892bddf32c34bea95b7ff0fc30affb5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f1ba620f9e8d7291f80c0554e4b820f5fb30e819\",\"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.