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CVE-2026-89446

iommufd: Release current IOAS on xa_store() failure

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 051ae5aa73d782a8be2699a11e17c68f28b4e758
Version < 4c33d00ad9a911e87ea222986f732ce072e3aa26
Status affected
Version 051ae5aa73d782a8be2699a11e17c68f28b4e758
Version < 07b4fe1367f076886c1c47a19c70936138325087
Status affected
Version 051ae5aa73d782a8be2699a11e17c68f28b4e758
Version < 4ac2ce123824d5f885c868fa1f9f4d463141a2ba
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.13
Status affected
Version 0
Version < 6.13
Status unaffected
Version <= 6.18.*
Version 6.18.50
Status unaffected
Version <= 7.2.*
Version 7.2.4
Status unaffected
Version <= *
Version 7.3-rc1
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.2% 0.097
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/4c33d00ad9a911e87ea222986f732ce072e3aa26
https://git.kernel.org/stable/c/07b4fe1367f076886c1c47a19c70936138325087
https://git.kernel.org/stable/c/4ac2ce123824d5f885c868fa1f9f4d463141a2ba