{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-64360",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-07-19T15:36:31.783Z",
        "datePublished": "2026-07-25T08:50:16.573Z",
        "dateUpdated": "2026-08-17T04:54:06.743Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-17T04:54:06.743Z"
            },
            "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."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/hfs/bnode.c",
                        "fs/hfsplus/bnode.c"
                    ],
                    "versions": [
                        {
                            "version": "67ecc81f6492275c9c54280532f558483c99c90e",
                            "lessThan": "34684a04777358b2b40ac729e54c8e45359e46b3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a1a60e79502279f996e55052f50cc14919020475",
                            "lessThan": "0b189b2204f1a2612dc68f8d139fb5b80539e710",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fe2891a9c43ab87d1a210d61e6438ca6936e2f62",
                            "lessThan": "8f72fd25a57a457866350359ddd27a43caa62c95",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "384a66b89f9540a9a8cb0f48807697dfabaece4c",
                            "lessThan": "16ca053c2be5f4f3044dccf7fc19237dc820d394",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "efc095b35b23297e419c2ab4fc1ed1a8f0781a29",
                            "lessThan": "d2afc7ecee476f9251dd87444f7fb6a424410922",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a431930c9bac518bf99d6b1da526a7f37ddee8d8",
                            "lessThan": "f3461b84a4865d9b5e70fbb71da72ae044a3bcd2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a431930c9bac518bf99d6b1da526a7f37ddee8d8",
                            "lessThan": "d5b45bad75cd2730b8452aed4d3b20a2b2a12576",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a431930c9bac518bf99d6b1da526a7f37ddee8d8",
                            "lessThan": "d67aadee19ffdf3cc8520c5a4f4d5b2916d30baf",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
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                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fc7f732984ec91f30be3e574e0644066d07f2b78",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "eec522fd0d28106b14a59ab2d658605febe4a3bb",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5.10.241",
                            "lessThan": "5.10.261",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.190",
                            "lessThan": "5.15.212",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.149",
                            "lessThan": "6.1.178",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.103",
                            "lessThan": "6.6.145",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.43",
                            "lessThan": "6.12.96",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.297",
                            "lessThan": "5.5",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.15.11",
                            "lessThan": "6.16",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.16.2",
                            "lessThan": "6.17",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/hfs/bnode.c",
                        "fs/hfsplus/bnode.c"
                    ],
                    "versions": [
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                            "version": "6.17",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.17",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.261",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.212",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.178",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.145",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.96",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.39",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.4",
                            "lessThanOrEqual": "7.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
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                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.10.241",
                                    "versionEndExcluding": "5.10.261"
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            "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"
                },
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                    "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",
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}