CVE-2026-89446iommufd: Release current IOAS on xa_store() failure
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 11, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 051ae5aa73d782a8be2699a11e17c68f28b4e758 builds before 4c33d00ad9a911e87ea222986f732ce072e3aa26; 051ae5aa73d782a8be2699a11e17c68f28b4e758 builds before 07b4fe1367f076886c1c47a19c70936138325087; 051ae5aa73d782a8be2699a11e17c68f28b4e758 builds before 4ac2ce123824d5f885c868fa1f9f4d463141a2ba | CNA record |
References
- https://git.kernel.org/stable/c/4c33d00ad9a911e87ea222986f732ce072e3aa26
- https://git.kernel.org/stable/c/07b4fe1367f076886c1c47a19c70936138325087
- https://git.kernel.org/stable/c/4ac2ce123824d5f885c868fa1f9f4d463141a2ba
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.