PT-2026-90162 · Linux · Linux
CVE-2026-89446
·
Published
2026-09-11
·
Updated
2026-09-11
None
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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.
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Related Identifiers
Affected Products
Linux