md/raid1: don't set array_frozen in raid1_takeover()
In the Linux kernel, the following vulnerability has been resolved: md/raid1: don't set array_frozen in raid1_takeover() raid1_takeover() sets conf->array_frozen = 1 on the newly-allocated r1conf and nothing ever clears it, so every I/O to the array stalls permanently once _wait_barrier() sees it stuck at 1. This used to be harmless: level_store() called mddev_resume() right after pers->run(), which called raid1_quiesce(mddev, 0) and cleared array_frozen back to 0 regardless of what raid1_takeover() set. Commit b39f35ebe86d ("md: don't quiesce in mddev_suspend()") removed that quiesce(mddev, 0) call, so the pre-set now sticks. setup_conf() already zero-initializes the new r1conf via kzalloc, so just don't set array_frozen here. Same class of bug as commit 892da88d1cd9 ("md/raid10: fix a 'conf->barrier' leakage in raid10_takeover()"), also triggered by b39f35ebe86d.
CVE-2026-90275
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-2026-90275
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": "b39f35ebe86d88788d85f61e83c81c308cb76727",
"lessThan": "668d99ba47210ab6ceb18f1cf022c0accca7e3bb",
"versionType": "git"
},
{
"status": "affected",
"version": "b39f35ebe86d88788d85f61e83c81c308cb76727",
"lessThan": "c57ec2749ee03cace564eec7bb37c89dc3d8d47b",
"versionType": "git"
},
{
"status": "affected",
"version": "b39f35ebe86d88788d85f61e83c81c308cb76727",
"lessThan": "f9cdb5bb8efbf401e84d850828271af87e6be2dc",
"versionType": "git"
},
{
"status": "affected",
"version": "b39f35ebe86d88788d85f61e83c81c308cb76727",
"lessThan": "b6ec4bf1ec4446c0213c08ea493e48e6b83cd1af",
"versionType": "git"
},
{
"status": "affected",
"version": "b39f35ebe86d88788d85f61e83c81c308cb76727",
"lessThan": "dc386aa0ac0a3ec06c9a3ea9b064b073fb72a916",
"versionType": "git"
}
],
"programFiles": [
"drivers/md/raid1.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": [
"drivers/md/raid1.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-90275
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #36632 · Revision 1
- Added to Heist Feed
- Publisher date