CVE-2026-99101 (GCVE-0-2026-99101)
Vulnerability from cvelistv5
Published
2026-10-28 10:34
Modified
2026-10-28 10:34
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ntfs: move attribute payload before shrinking its record
ntfs_new_attr_flags() resizes the non-resident attribute record before
moving its name and mapping pairs to their shorter-header offsets when
compression or sparse state is cleared.
Shrinking the record first moves the following attribute over the tail of
the old record. The subsequent memmove() therefore copies bytes from that
following attribute instead of the old mapping pairs. Re-enabling
compression on an empty file persists those bytes as a malformed mapping
pairs array, which ntfsck reports as a missing or invalid run length.
Move the payload before shrinking the record, while retaining the existing
resize-before-move ordering when growing it.
References
Impacted products
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"containers": {
"cna": {
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"vendor": "Linux",
"versions": [
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"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
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"version": "0",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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"vulnerable": true
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"descriptions": [
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nntfs: move attribute payload before shrinking its record\n\nntfs_new_attr_flags() resizes the non-resident attribute record before\nmoving its name and mapping pairs to their shorter-header offsets when\ncompression or sparse state is cleared.\n\nShrinking the record first moves the following attribute over the tail of\nthe old record. The subsequent memmove() therefore copies bytes from that\nfollowing attribute instead of the old mapping pairs. Re-enabling\ncompression on an empty file persists those bytes as a malformed mapping\npairs array, which ntfsck reports as a missing or invalid run length.\n\nMove the payload before shrinking the record, while retaining the existing\nresize-before-move ordering when growing it."
}
],
"providerMetadata": {
"dateUpdated": "2026-10-28T10:34:16.583Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
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"references": [
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"url": "https://git.kernel.org/stable/c/7dc2c524608039d1b082a0087f7aa0751edd4ffb"
},
{
"url": "https://git.kernel.org/stable/c/0ab6dc1ac4601c8d79e5448a024daed6b0c5ef64"
}
],
"title": "ntfs: move attribute payload before shrinking its record",
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"cveMetadata": {
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"assignerShortName": "Linux",
"cveId": "CVE-2026-99101",
"datePublished": "2026-10-28T10:34:16.583Z",
"dateReserved": "2026-09-25T10:25:14.391Z",
"dateUpdated": "2026-10-28T10:34:16.583Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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