Vulnerability-Lookup

FKIE_CVE-2026-72223

Vulnerability from fkie_nvd - Published: 2026-08-15 06:21 - Updated: 2026-08-17 06:18

Severity

Summary

In the Linux kernel, the following vulnerability has been resolved: nvdimm/btt: Free arena sub-allocations on discover_arenas() error path Memory allocated by btt_freelist_init(), btt_rtt_init(), and btt_maplocks_init() is not freed on some discover_arenas() error paths. This leaks memory when arena discovery fails. Add the missing kfree() calls to release the allocations before returning an error. [ as: commit message and log edits ]

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/0b0d9404951aacc9717aa61e77af4a6e9e8f8249
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/13fe4cd9ddd0aacb7777812328be525a11ea3fea
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2d0364937550a7b3e2592629c2a68753ac020b28
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/30d490bb2c4cd220e7dedf862ab6a09eb5dcbad5
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/7563f69caa9143a491d5f26e563255c734751545
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/873ced7f345e99f7ee16f9ff226515580332ecc4
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ba59b96d8d21dc8729fca44a022ca5919c1848c9
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/eeb95774bc79268e2b78ebf01d8781560b5bd671

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/nvdimm/btt.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "2d0364937550a7b3e2592629c2a68753ac020b28",
              "status": "affected",
              "version": "5212e11fde4d40fa627668b4f2222d20db488f71",
              "versionType": "git"
            },
            {
              "lessThan": "eeb95774bc79268e2b78ebf01d8781560b5bd671",
              "status": "affected",
              "version": "5212e11fde4d40fa627668b4f2222d20db488f71",
              "versionType": "git"
            },
            {
              "lessThan": "7563f69caa9143a491d5f26e563255c734751545",
              "status": "affected",
              "version": "5212e11fde4d40fa627668b4f2222d20db488f71",
              "versionType": "git"
            },
            {
              "lessThan": "0b0d9404951aacc9717aa61e77af4a6e9e8f8249",
              "status": "affected",
              "version": "5212e11fde4d40fa627668b4f2222d20db488f71",
              "versionType": "git"
            },
            {
              "lessThan": "873ced7f345e99f7ee16f9ff226515580332ecc4",
              "status": "affected",
              "version": "5212e11fde4d40fa627668b4f2222d20db488f71",
              "versionType": "git"
            },
            {
              "lessThan": "30d490bb2c4cd220e7dedf862ab6a09eb5dcbad5",
              "status": "affected",
              "version": "5212e11fde4d40fa627668b4f2222d20db488f71",
              "versionType": "git"
            },
            {
              "lessThan": "ba59b96d8d21dc8729fca44a022ca5919c1848c9",
              "status": "affected",
              "version": "5212e11fde4d40fa627668b4f2222d20db488f71",
              "versionType": "git"
            },
            {
              "lessThan": "13fe4cd9ddd0aacb7777812328be525a11ea3fea",
              "status": "affected",
              "version": "5212e11fde4d40fa627668b4f2222d20db488f71",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/nvdimm/btt.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.2"
            },
            {
              "lessThan": "4.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.261",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.212",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvdimm/btt: Free arena sub-allocations on discover_arenas() error path\n\nMemory allocated by btt_freelist_init(), btt_rtt_init(), and\nbtt_maplocks_init() is not freed on some discover_arenas() error\npaths. This leaks memory when arena discovery fails.\n\nAdd the missing kfree() calls to release the allocations before\nreturning an error.\n\n[ as: commit message and log edits ]"
    }
  ],
  "id": "CVE-2026-72223",
  "lastModified": "2026-08-17T06:18:23.437",
  "metrics": {},
  "published": "2026-08-15T06:21:41.233",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0b0d9404951aacc9717aa61e77af4a6e9e8f8249"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/13fe4cd9ddd0aacb7777812328be525a11ea3fea"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2d0364937550a7b3e2592629c2a68753ac020b28"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/30d490bb2c4cd220e7dedf862ab6a09eb5dcbad5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7563f69caa9143a491d5f26e563255c734751545"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/873ced7f345e99f7ee16f9ff226515580332ecc4"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ba59b96d8d21dc8729fca44a022ca5919c1848c9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/eeb95774bc79268e2b78ebf01d8781560b5bd671"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}

CVE-2026-72223 (GCVE-0-2026-72223)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:54 – Updated: 2026-08-17 05:10

Title

nvdimm/btt: Free arena sub-allocations on discover_arenas() error path

Summary

Severity

No CVSS data available.

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/2d0364937550a7b3e…
https://git.kernel.org/stable/c/eeb95774bc79268e2…
https://git.kernel.org/stable/c/7563f69caa9143a49…
https://git.kernel.org/stable/c/0b0d9404951aacc97…
https://git.kernel.org/stable/c/873ced7f345e99f7e…
https://git.kernel.org/stable/c/30d490bb2c4cd220e…
https://git.kernel.org/stable/c/ba59b96d8d21dc872…
https://git.kernel.org/stable/c/13fe4cd9ddd0aacb7…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 5212e11fde4d40fa627668b4f2222d20db488f71 , < 2d0364937550a7b3e2592629c2a68753ac020b28 (git) Affected: 5212e11fde4d40fa627668b4f2222d20db488f71 , < eeb95774bc79268e2b78ebf01d8781560b5bd671 (git) Affected: 5212e11fde4d40fa627668b4f2222d20db488f71 , < 7563f69caa9143a491d5f26e563255c734751545 (git) Affected: 5212e11fde4d40fa627668b4f2222d20db488f71 , < 0b0d9404951aacc9717aa61e77af4a6e9e8f8249 (git) Affected: 5212e11fde4d40fa627668b4f2222d20db488f71 , < 873ced7f345e99f7ee16f9ff226515580332ecc4 (git) Affected: 5212e11fde4d40fa627668b4f2222d20db488f71 , < 30d490bb2c4cd220e7dedf862ab6a09eb5dcbad5 (git) Affected: 5212e11fde4d40fa627668b4f2222d20db488f71 , < ba59b96d8d21dc8729fca44a022ca5919c1848c9 (git) Affected: 5212e11fde4d40fa627668b4f2222d20db488f71 , < 13fe4cd9ddd0aacb7777812328be525a11ea3fea (git)
Linux	Linux	Affected: 4.2 Unaffected: 0 , < 4.2 (semver) Unaffected: 5.10.261 , ≤ 5.10.* (semver) Unaffected: 5.15.212 , ≤ 5.15.* (semver) Unaffected: 6.1.178 , ≤ 6.1.* (semver) Unaffected: 6.6.145 , ≤ 6.6.* (semver) Unaffected: 6.12.97 , ≤ 6.12.* (semver) Unaffected: 6.18.40 , ≤ 6.18.* (semver) Unaffected: 7.1.5 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/nvdimm/btt.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "2d0364937550a7b3e2592629c2a68753ac020b28",
              "status": "affected",
              "version": "5212e11fde4d40fa627668b4f2222d20db488f71",
              "versionType": "git"
            },
            {
              "lessThan": "eeb95774bc79268e2b78ebf01d8781560b5bd671",
              "status": "affected",
              "version": "5212e11fde4d40fa627668b4f2222d20db488f71",
              "versionType": "git"
            },
            {
              "lessThan": "7563f69caa9143a491d5f26e563255c734751545",
              "status": "affected",
              "version": "5212e11fde4d40fa627668b4f2222d20db488f71",
              "versionType": "git"
            },
            {
              "lessThan": "0b0d9404951aacc9717aa61e77af4a6e9e8f8249",
              "status": "affected",
              "version": "5212e11fde4d40fa627668b4f2222d20db488f71",
              "versionType": "git"
            },
            {
              "lessThan": "873ced7f345e99f7ee16f9ff226515580332ecc4",
              "status": "affected",
              "version": "5212e11fde4d40fa627668b4f2222d20db488f71",
              "versionType": "git"
            },
            {
              "lessThan": "30d490bb2c4cd220e7dedf862ab6a09eb5dcbad5",
              "status": "affected",
              "version": "5212e11fde4d40fa627668b4f2222d20db488f71",
              "versionType": "git"
            },
            {
              "lessThan": "ba59b96d8d21dc8729fca44a022ca5919c1848c9",
              "status": "affected",
              "version": "5212e11fde4d40fa627668b4f2222d20db488f71",
              "versionType": "git"
            },
            {
              "lessThan": "13fe4cd9ddd0aacb7777812328be525a11ea3fea",
              "status": "affected",
              "version": "5212e11fde4d40fa627668b4f2222d20db488f71",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/nvdimm/btt.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.2"
            },
            {
              "lessThan": "4.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.261",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.212",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.261",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.212",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.178",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.145",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.97",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.40",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.5",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvdimm/btt: Free arena sub-allocations on discover_arenas() error path\n\nMemory allocated by btt_freelist_init(), btt_rtt_init(), and\nbtt_maplocks_init() is not freed on some discover_arenas() error\npaths. This leaks memory when arena discovery fails.\n\nAdd the missing kfree() calls to release the allocations before\nreturning an error.\n\n[ as: commit message and log edits ]"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:10:38.658Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/2d0364937550a7b3e2592629c2a68753ac020b28"
        },
        {
          "url": "https://git.kernel.org/stable/c/eeb95774bc79268e2b78ebf01d8781560b5bd671"
        },
        {
          "url": "https://git.kernel.org/stable/c/7563f69caa9143a491d5f26e563255c734751545"
        },
        {
          "url": "https://git.kernel.org/stable/c/0b0d9404951aacc9717aa61e77af4a6e9e8f8249"
        },
        {
          "url": "https://git.kernel.org/stable/c/873ced7f345e99f7ee16f9ff226515580332ecc4"
        },
        {
          "url": "https://git.kernel.org/stable/c/30d490bb2c4cd220e7dedf862ab6a09eb5dcbad5"
        },
        {
          "url": "https://git.kernel.org/stable/c/ba59b96d8d21dc8729fca44a022ca5919c1848c9"
        },
        {
          "url": "https://git.kernel.org/stable/c/13fe4cd9ddd0aacb7777812328be525a11ea3fea"
        }
      ],
      "title": "nvdimm/btt: Free arena sub-allocations on discover_arenas() error path",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-72223",
    "datePublished": "2026-08-15T05:54:16.019Z",
    "dateReserved": "2026-08-09T03:40:39.913Z",
    "dateUpdated": "2026-08-17T05:10:38.658Z",
    "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.

Action not permitted

FKIE_CVE-2026-72223

CVE-2026-72223 (GCVE-0-2026-72223)

Tags

Sightings

Nomenclature