Riskcovery

CVE-2026-89446

iommufd: Release current IOAS on xa_store() failure

State
Published
Severity
Not scored
Published
Sep 11, 2026
Updated
Oct 19, 2026
Reserved
Sep 11, 2026

Read the record on cve.org

Description

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 051ae5aa73d782a8be2699a11e17c68f28b4e758 to before 4c33d00ad9a911e87ea222986f732ce072e3aa26Affected
  • 051ae5aa73d782a8be2699a11e17c68f28b4e758 to before 07b4fe1367f076886c1c47a19c70936138325087Affected
  • 051ae5aa73d782a8be2699a11e17c68f28b4e758 to before 4ac2ce123824d5f885c868fa1f9f4d463141a2baAffected
LinuxLinux
  • 6.13Affected
  • before 6.13Not affected
  • 6.18.50 through 6.18.*Not affected
  • 7.2.4 through 7.2.*Not affected
  • 7.3 and laterNot affected

References

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