Vulnerability-Lookup

FKIE_CVE-2026-64360

Vulnerability from fkie_nvd - Published: 2026-07-25 10:17 - Updated: 2026-07-25 10:17

Severity

Summary

In the Linux kernel, the following vulnerability has been resolved: hfs/hfsplus: zero-initialize buffer in hfs_bnode_read hfs_bnode_read() can return early without writing to the output buffer when is_bnode_offset_valid() fails or when check_and_correct_requested_ length() corrects the length to zero. Callers such as hfs_bnode_read_ u16() and hfs_bnode_read_u8() pass stack-allocated buffers and use the result unconditionally, leading to KMSAN uninit-value reports. Rather than initializing at each individual call site, zero the buffer at the start of hfs_bnode_read() before any validation checks. This ensures all callers in both hfs and hfsplus get a deterministic zero value regardless of which early-return path is taken.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/0b189b2204f1a2612dc68f8d139fb5b80539e710
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/16ca053c2be5f4f3044dccf7fc19237dc820d394
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/34684a04777358b2b40ac729e54c8e45359e46b3
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/8f72fd25a57a457866350359ddd27a43caa62c95
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d2afc7ecee476f9251dd87444f7fb6a424410922
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d5b45bad75cd2730b8452aed4d3b20a2b2a12576
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d67aadee19ffdf3cc8520c5a4f4d5b2916d30baf
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f3461b84a4865d9b5e70fbb71da72ae044a3bcd2

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/hfs/bnode.c",
            "fs/hfsplus/bnode.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "34684a04777358b2b40ac729e54c8e45359e46b3",
              "status": "affected",
              "version": "67ecc81f6492275c9c54280532f558483c99c90e",
              "versionType": "git"
            },
            {
              "lessThan": "0b189b2204f1a2612dc68f8d139fb5b80539e710",
              "status": "affected",
              "version": "a1a60e79502279f996e55052f50cc14919020475",
              "versionType": "git"
            },
            {
              "lessThan": "8f72fd25a57a457866350359ddd27a43caa62c95",
              "status": "affected",
              "version": "fe2891a9c43ab87d1a210d61e6438ca6936e2f62",
              "versionType": "git"
            },
            {
              "lessThan": "16ca053c2be5f4f3044dccf7fc19237dc820d394",
              "status": "affected",
              "version": "384a66b89f9540a9a8cb0f48807697dfabaece4c",
              "versionType": "git"
            },
            {
              "lessThan": "d2afc7ecee476f9251dd87444f7fb6a424410922",
              "status": "affected",
              "version": "efc095b35b23297e419c2ab4fc1ed1a8f0781a29",
              "versionType": "git"
            },
            {
              "lessThan": "f3461b84a4865d9b5e70fbb71da72ae044a3bcd2",
              "status": "affected",
              "version": "a431930c9bac518bf99d6b1da526a7f37ddee8d8",
              "versionType": "git"
            },
            {
              "lessThan": "d5b45bad75cd2730b8452aed4d3b20a2b2a12576",
              "status": "affected",
              "version": "a431930c9bac518bf99d6b1da526a7f37ddee8d8",
              "versionType": "git"
            },
            {
              "lessThan": "d67aadee19ffdf3cc8520c5a4f4d5b2916d30baf",
              "status": "affected",
              "version": "a431930c9bac518bf99d6b1da526a7f37ddee8d8",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "e7d2dc2421e821e4045775e6dc226378328de6f6",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "fc7f732984ec91f30be3e574e0644066d07f2b78",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "eec522fd0d28106b14a59ab2d658605febe4a3bb",
              "versionType": "git"
            },
            {
              "lessThan": "5.10.261",
              "status": "affected",
              "version": "5.10.241",
              "versionType": "semver"
            },
            {
              "lessThan": "5.15.212",
              "status": "affected",
              "version": "5.15.190",
              "versionType": "semver"
            },
            {
              "lessThan": "6.1.178",
              "status": "affected",
              "version": "6.1.149",
              "versionType": "semver"
            },
            {
              "lessThan": "6.6.145",
              "status": "affected",
              "version": "6.6.103",
              "versionType": "semver"
            },
            {
              "lessThan": "6.12.96",
              "status": "affected",
              "version": "6.12.43",
              "versionType": "semver"
            },
            {
              "lessThan": "5.5",
              "status": "affected",
              "version": "5.4.297",
              "versionType": "semver"
            },
            {
              "lessThan": "6.16",
              "status": "affected",
              "version": "6.15.11",
              "versionType": "semver"
            },
            {
              "lessThan": "6.17",
              "status": "affected",
              "version": "6.16.2",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/hfs/bnode.c",
            "fs/hfsplus/bnode.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.17"
            },
            {
              "lessThan": "6.17",
              "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": "6.12.96",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.39",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2-rc1",
              "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\nhfs/hfsplus: zero-initialize buffer in hfs_bnode_read\n\nhfs_bnode_read() can return early without writing to the output buffer\nwhen is_bnode_offset_valid() fails or when check_and_correct_requested_\nlength() corrects the length to zero.  Callers such as hfs_bnode_read_\nu16() and hfs_bnode_read_u8() pass stack-allocated buffers and use the\nresult unconditionally, leading to KMSAN uninit-value reports.\n\nRather than initializing at each individual call site, zero the buffer\nat the start of hfs_bnode_read() before any validation checks.  This\nensures all callers in both hfs and hfsplus get a deterministic zero\nvalue regardless of which early-return path is taken."
    }
  ],
  "id": "CVE-2026-64360",
  "lastModified": "2026-07-25T10:17:18.530",
  "metrics": {},
  "published": "2026-07-25T10:17:18.530",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0b189b2204f1a2612dc68f8d139fb5b80539e710"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/16ca053c2be5f4f3044dccf7fc19237dc820d394"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/34684a04777358b2b40ac729e54c8e45359e46b3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/8f72fd25a57a457866350359ddd27a43caa62c95"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d2afc7ecee476f9251dd87444f7fb6a424410922"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d5b45bad75cd2730b8452aed4d3b20a2b2a12576"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d67aadee19ffdf3cc8520c5a4f4d5b2916d30baf"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f3461b84a4865d9b5e70fbb71da72ae044a3bcd2"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}

CVE-2026-64360 (GCVE-0-2026-64360)

Vulnerability from cvelistv5 – Published: 2026-07-25 08:50 – Updated: 2026-07-25 08:50

Title

hfs/hfsplus: zero-initialize buffer in hfs_bnode_read

Summary

Severity

No CVSS data available.

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/34684a04777358b2b…
https://git.kernel.org/stable/c/0b189b2204f1a2612…
https://git.kernel.org/stable/c/8f72fd25a57a45786…
https://git.kernel.org/stable/c/16ca053c2be5f4f30…
https://git.kernel.org/stable/c/d2afc7ecee476f925…
https://git.kernel.org/stable/c/f3461b84a4865d9b5…
https://git.kernel.org/stable/c/d5b45bad75cd2730b…
https://git.kernel.org/stable/c/d67aadee19ffdf3cc…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 67ecc81f6492275c9c54280532f558483c99c90e , < 34684a04777358b2b40ac729e54c8e45359e46b3 (git) Affected: a1a60e79502279f996e55052f50cc14919020475 , < 0b189b2204f1a2612dc68f8d139fb5b80539e710 (git) Affected: fe2891a9c43ab87d1a210d61e6438ca6936e2f62 , < 8f72fd25a57a457866350359ddd27a43caa62c95 (git) Affected: 384a66b89f9540a9a8cb0f48807697dfabaece4c , < 16ca053c2be5f4f3044dccf7fc19237dc820d394 (git) Affected: efc095b35b23297e419c2ab4fc1ed1a8f0781a29 , < d2afc7ecee476f9251dd87444f7fb6a424410922 (git) Affected: a431930c9bac518bf99d6b1da526a7f37ddee8d8 , < f3461b84a4865d9b5e70fbb71da72ae044a3bcd2 (git) Affected: a431930c9bac518bf99d6b1da526a7f37ddee8d8 , < d5b45bad75cd2730b8452aed4d3b20a2b2a12576 (git) Affected: a431930c9bac518bf99d6b1da526a7f37ddee8d8 , < d67aadee19ffdf3cc8520c5a4f4d5b2916d30baf (git) Affected: e7d2dc2421e821e4045775e6dc226378328de6f6 (git) Affected: fc7f732984ec91f30be3e574e0644066d07f2b78 (git) Affected: eec522fd0d28106b14a59ab2d658605febe4a3bb (git) Affected: 5.10.241 , < 5.10.261 (semver) Affected: 5.15.190 , < 5.15.212 (semver) Affected: 6.1.149 , < 6.1.178 (semver) Affected: 6.6.103 , < 6.6.145 (semver) Affected: 6.12.43 , < 6.12.96 (semver) Affected: 5.4.297 , < 5.5 (semver) Affected: 6.15.11 , < 6.16 (semver) Affected: 6.16.2 , < 6.17 (semver)
Linux	Linux	Affected: 6.17 Unaffected: 0 , < 6.17 (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: 6.12.96 , ≤ 6.12.* (semver) Unaffected: 6.18.39 , ≤ 6.18.* (semver) Unaffected: 7.1.4 , ≤ 7.1.* (semver) Unaffected: 7.2-rc1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/hfs/bnode.c",
            "fs/hfsplus/bnode.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "34684a04777358b2b40ac729e54c8e45359e46b3",
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              "versionType": "git"
            },
            {
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            },
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              "versionType": "git"
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              "versionType": "git"
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            },
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            },
            {
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              "version": "eec522fd0d28106b14a59ab2d658605febe4a3bb",
              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "5.10.241",
              "versionType": "semver"
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              "version": "5.15.190",
              "versionType": "semver"
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              "versionType": "semver"
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              "versionType": "semver"
            },
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            },
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              "versionType": "semver"
            },
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              "status": "affected",
              "version": "6.15.11",
              "versionType": "semver"
            },
            {
              "lessThan": "6.17",
              "status": "affected",
              "version": "6.16.2",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/hfs/bnode.c",
            "fs/hfsplus/bnode.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.17"
            },
            {
              "lessThan": "6.17",
              "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": "6.12.96",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.39",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.261",
                  "versionStartIncluding": "5.10.241",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.212",
                  "versionStartIncluding": "5.15.190",
                  "vulnerable": true
                },
                {
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                },
                {
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                  "versionEndExcluding": "6.6.145",
                  "versionStartIncluding": "6.6.103",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.96",
                  "versionStartIncluding": "6.12.43",
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                },
                {
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                  "versionEndExcluding": "6.18.39",
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.4",
                  "versionStartIncluding": "6.17",
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                },
                {
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                  "versionEndExcluding": "7.2-rc1",
                  "versionStartIncluding": "6.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.4.297",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.15.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.16.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhfs/hfsplus: zero-initialize buffer in hfs_bnode_read\n\nhfs_bnode_read() can return early without writing to the output buffer\nwhen is_bnode_offset_valid() fails or when check_and_correct_requested_\nlength() corrects the length to zero.  Callers such as hfs_bnode_read_\nu16() and hfs_bnode_read_u8() pass stack-allocated buffers and use the\nresult unconditionally, leading to KMSAN uninit-value reports.\n\nRather than initializing at each individual call site, zero the buffer\nat the start of hfs_bnode_read() before any validation checks.  This\nensures all callers in both hfs and hfsplus get a deterministic zero\nvalue regardless of which early-return path is taken."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-25T08:50:16.573Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/34684a04777358b2b40ac729e54c8e45359e46b3"
        },
        {
          "url": "https://git.kernel.org/stable/c/0b189b2204f1a2612dc68f8d139fb5b80539e710"
        },
        {
          "url": "https://git.kernel.org/stable/c/8f72fd25a57a457866350359ddd27a43caa62c95"
        },
        {
          "url": "https://git.kernel.org/stable/c/16ca053c2be5f4f3044dccf7fc19237dc820d394"
        },
        {
          "url": "https://git.kernel.org/stable/c/d2afc7ecee476f9251dd87444f7fb6a424410922"
        },
        {
          "url": "https://git.kernel.org/stable/c/f3461b84a4865d9b5e70fbb71da72ae044a3bcd2"
        },
        {
          "url": "https://git.kernel.org/stable/c/d5b45bad75cd2730b8452aed4d3b20a2b2a12576"
        },
        {
          "url": "https://git.kernel.org/stable/c/d67aadee19ffdf3cc8520c5a4f4d5b2916d30baf"
        }
      ],
      "title": "hfs/hfsplus: zero-initialize buffer in hfs_bnode_read",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-64360",
    "datePublished": "2026-07-25T08:50:16.573Z",
    "dateReserved": "2026-07-19T15:36:31.783Z",
    "dateUpdated": "2026-07-25T08:50:16.573Z",
    "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.

Action not permitted

FKIE_CVE-2026-64360

CVE-2026-64360 (GCVE-0-2026-64360)

Tags

Sightings

Nomenclature