CVE-2026-64360 (GCVE-0-2026-64360)
Vulnerability from cvelistv5 – Published: 2026-07-25 08:50 – Updated: 2026-07-25 08:50
VLAI
EPSS
VEX
Title
hfs/hfsplus: zero-initialize buffer in hfs_bnode_read
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.
Severity
No CVSS data available.
Assigner
References
8 references
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) |
{
"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",
"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"
}
]
}
],
"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
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.178",
"versionStartIncluding": "6.1.149",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"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",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18.39",
"versionStartIncluding": "6.17",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.1.4",
"versionStartIncluding": "6.17",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"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",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-64360",
"date": "2026-07-26",
"epss": "0.00177",
"percentile": "0.07471"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2026-64360\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-07-25T10:17:18.530\",\"lastModified\":\"2026-07-25T10:17:18.530\",\"vulnStatus\":\"Received\",\"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.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"fs/hfs/bnode.c\",\"fs/hfsplus/bnode.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"67ecc81f6492275c9c54280532f558483c99c90e\",\"lessThan\":\"34684a04777358b2b40ac729e54c8e45359e46b3\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"a1a60e79502279f996e55052f50cc14919020475\",\"lessThan\":\"0b189b2204f1a2612dc68f8d139fb5b80539e710\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"fe2891a9c43ab87d1a210d61e6438ca6936e2f62\",\"lessThan\":\"8f72fd25a57a457866350359ddd27a43caa62c95\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"384a66b89f9540a9a8cb0f48807697dfabaece4c\",\"lessThan\":\"16ca053c2be5f4f3044dccf7fc19237dc820d394\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"efc095b35b23297e419c2ab4fc1ed1a8f0781a29\",\"lessThan\":\"d2afc7ecee476f9251dd87444f7fb6a424410922\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"a431930c9bac518bf99d6b1da526a7f37ddee8d8\",\"lessThan\":\"f3461b84a4865d9b5e70fbb71da72ae044a3bcd2\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"a431930c9bac518bf99d6b1da526a7f37ddee8d8\",\"lessThan\":\"d5b45bad75cd2730b8452aed4d3b20a2b2a12576\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"a431930c9bac518bf99d6b1da526a7f37ddee8d8\",\"lessThan\":\"d67aadee19ffdf3cc8520c5a4f4d5b2916d30baf\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"e7d2dc2421e821e4045775e6dc226378328de6f6\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"fc7f732984ec91f30be3e574e0644066d07f2b78\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"eec522fd0d28106b14a59ab2d658605febe4a3bb\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"5.10.241\",\"lessThan\":\"5.10.261\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"5.15.190\",\"lessThan\":\"5.15.212\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.1.149\",\"lessThan\":\"6.1.178\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.6.103\",\"lessThan\":\"6.6.145\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.12.43\",\"lessThan\":\"6.12.96\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"5.4.297\",\"lessThan\":\"5.5\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.15.11\",\"lessThan\":\"6.16\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.16.2\",\"lessThan\":\"6.17\",\"versionType\":\"semver\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"fs/hfs/bnode.c\",\"fs/hfsplus/bnode.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.17\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.17\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.261\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.212\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.178\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.145\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.96\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.39\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1.4\",\"lessThanOrEqual\":\"7.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.2-rc1\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"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\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
"suse_vex": {
"aggregate_severity": "not set",
"current_release_date": "2026-07-25T16:01:01Z",
"cve": "CVE-2026-64360",
"id": "CVE-2026-64360",
"initial_release_date": "2026-07-25T16:01:01Z",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2026-64360",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-64360.json",
"version": "2"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
Loading…
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.
Loading…
Loading…