btrfs: retry verity reads for not-uptodate Merkle folios
In the Linux kernel, the following vulnerability has been resolved: btrfs: retry verity reads for not-uptodate Merkle folios btrfs_read_merkle_tree_page() can find a folio in the mapping that is not uptodate. After taking the folio lock, the current code treats that state as a read error and returns -EIO. That can make a previous transient read failure sticky. If the failed read left a not-uptodate folio in the mapping, later callers find that folio and fail instead of retrying the read. Keep the existing page-cache insertion and locking order, but retry the Merkle item read when a not-uptodate folio is found in the mapping. Also unlock the folio when read_key_bytes() fails so that a later caller can lock it and retry the read.
CVE-2026-90262
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-2026-90262
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": "06ed09351b67eb1114ae106a87a0ee3ea9adb3db",
"lessThan": "90e9eae1b5907fa36620ffb7f4f1a4afa9333427",
"versionType": "git"
},
{
"status": "affected",
"version": "06ed09351b67eb1114ae106a87a0ee3ea9adb3db",
"lessThan": "c1fa005cdf3b7ff14cdfd7d512830088a3fc256b",
"versionType": "git"
},
{
"status": "affected",
"version": "06ed09351b67eb1114ae106a87a0ee3ea9adb3db",
"lessThan": "12b6d1a1715cbced2e445ca353f9c9987b8636e2",
"versionType": "git"
},
{
"status": "affected",
"version": "06ed09351b67eb1114ae106a87a0ee3ea9adb3db",
"lessThan": "81241f734f0f662378f5ffc53882b012923e6fe5",
"versionType": "git"
},
{
"status": "affected",
"version": "06ed09351b67eb1114ae106a87a0ee3ea9adb3db",
"lessThan": "8cc569696dac51fc62bb39b3b8f530582b916d29",
"versionType": "git"
}
],
"programFiles": [
"fs/btrfs/verity.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.6"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.6",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.157",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.110",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.52",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.6",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/btrfs/verity.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-90262
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #36625 · Revision 1
- Added to Heist Feed
- Publisher date