iommufd: Release current IOAS on xa_store() failure
In the Linux kernel, the following vulnerability has been resolved: iommufd: Release current IOAS on xa_store() failure iommufd_take_all_iova_rwsem() takes an object reference and the iova_rwsem write lock before storing the IOAS in the temporary ioas_list xarray. If xa_store() fails, the current IOAS has not been inserted into ioas_list yet. iommufd_release_all_iova_rwsem() only unwinds IOAS objects already present in that xarray, so it cannot release the current IOAS. Release the current IOAS rwsem and object reference before unwinding the previously stored entries.
CVE-2026-89446
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-2026-89446
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": "051ae5aa73d782a8be2699a11e17c68f28b4e758",
"lessThan": "4c33d00ad9a911e87ea222986f732ce072e3aa26",
"versionType": "git"
},
{
"status": "affected",
"version": "051ae5aa73d782a8be2699a11e17c68f28b4e758",
"lessThan": "07b4fe1367f076886c1c47a19c70936138325087",
"versionType": "git"
},
{
"status": "affected",
"version": "051ae5aa73d782a8be2699a11e17c68f28b4e758",
"lessThan": "4ac2ce123824d5f885c868fa1f9f4d463141a2ba",
"versionType": "git"
}
],
"programFiles": [
"drivers/iommu/iommufd/ioas.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.13"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.13",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.18.50",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.4",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/iommu/iommufd/ioas.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-89446
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #34979 · Revision 1
- Added to Heist Feed
- Publisher date