UNKNOWN NVD
CVE-2026-89446
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
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.
References
- https://git.kernel.org/stable/c/07b4fe1367f076886c1c47a19c70936138325087
- https://git.kernel.org/stable/c/4ac2ce123824d5f885c868fa1f9f4d463141a2ba
- https://git.kernel.org/stable/c/4c33d00ad9a911e87ea222986f732ce072e3aa26
This unknown severity vulnerability was published on 2026-09-11 via NVD.
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