xfs: fix wild memcpy access when formatting ondisk rtrefcount btree roots
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.
CVE-2026-98447
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-98447
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "f0415af60f482a2192065be8b334b409495ca8a3",
"lessThan": "d46492fb8018d12d00651b06b9d240e747110b38",
"versionType": "git"
},
{
"status": "affected",
"version": "f0415af60f482a2192065be8b334b409495ca8a3",
"lessThan": "2703b954d306ebfe3b11e33e259759329c11b690",
"versionType": "git"
},
{
"status": "affected",
"version": "f0415af60f482a2192065be8b334b409495ca8a3",
"lessThan": "fe2f9135df43db849e74f03956d322ac20b59af7",
"versionType": "git"
}
],
"programFiles": [
"fs/xfs/libxfs/xfs_rtrefcount_btree.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.14"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.14",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.18.55",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.9",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/xfs/libxfs/xfs_rtrefcount_btree.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98447
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38505 · Revision 1
- Added to Heist Feed
- Publisher date