CVE-2026-89446
iommufd: Release current IOAS on xa_store() failure
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 11, 2026 |
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Affected Versions
Linux / Linux
051ae5aa73d782a8be2699a11e17c68f28b4e758 < 4c33d00ad9a911e87ea222986f732ce072e3aa26 051ae5aa73d782a8be2699a11e17c68f28b4e758 < 07b4fe1367f076886c1c47a19c70936138325087 051ae5aa73d782a8be2699a11e17c68f28b4e758 < 4ac2ce123824d5f885c868fa1f9f4d463141a2ba
Linux / Linux
6.13