CVE-2026-98447 (GCVE-0-2026-98447)
Vulnerability from cvelistv5
Published
2026-10-18 15:14
Modified
2026-10-19 09:19
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
xfs: fix wild memcpy access when formatting ondisk rtrefcount btree roots
LOLLM noticed that the inode btree root formatting methods copy too many
bytes -- there's only one set of keys in node blocks, not two. This
causes memory corruption of whatever's beyond the buffers.
References
Impacted products
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"fs/xfs/libxfs/xfs_rtrefcount_btree.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "d46492fb8018d12d00651b06b9d240e747110b38",
"status": "affected",
"version": "f0415af60f482a2192065be8b334b409495ca8a3",
"versionType": "git"
},
{
"lessThan": "2703b954d306ebfe3b11e33e259759329c11b690",
"status": "affected",
"version": "f0415af60f482a2192065be8b334b409495ca8a3",
"versionType": "git"
},
{
"lessThan": "fe2f9135df43db849e74f03956d322ac20b59af7",
"status": "affected",
"version": "f0415af60f482a2192065be8b334b409495ca8a3",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"fs/xfs/libxfs/xfs_rtrefcount_btree.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.14"
},
{
"lessThan": "6.14",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.55",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.2.*",
"status": "unaffected",
"version": "7.2.9",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18.55",
"versionStartIncluding": "6.14",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.2.9",
"versionStartIncluding": "6.14",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.3",
"versionStartIncluding": "6.14",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: fix wild memcpy access when formatting ondisk rtrefcount btree roots\n\nLOLLM noticed that the inode btree root formatting methods copy too many\nbytes -- there\u0027s only one set of keys in node blocks, not two. This\ncauses memory corruption of whatever\u0027s beyond the buffers."
}
],
"providerMetadata": {
"dateUpdated": "2026-10-19T09:19:42.728Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/d46492fb8018d12d00651b06b9d240e747110b38"
},
{
"url": "https://git.kernel.org/stable/c/2703b954d306ebfe3b11e33e259759329c11b690"
},
{
"url": "https://git.kernel.org/stable/c/fe2f9135df43db849e74f03956d322ac20b59af7"
}
],
"title": "xfs: fix wild memcpy access when formatting ondisk rtrefcount btree roots",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-98447",
"datePublished": "2026-10-18T15:14:57.561Z",
"dateReserved": "2026-09-25T10:25:14.349Z",
"dateUpdated": "2026-10-19T09:19:42.728Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Loading…
Loading…
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.
Loading…
Loading…