CVE-2026-89451iommu/sva: Set handle->dev before the SVA handle is visible
- —Not scoredno CVSS score yet
- 0.21%Exploitation in 30 daysEPSS · top 89% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: iommu/sva: Set handle->dev before the SVA handle is visible iommu_attach_device_pasid() installs the new SVA attach handle in the group PASID lookup before iommu_sva_bind_device() returns. A concurrent bind can therefore find and reuse the same handle after iommu_sva_lock is dropped. handle->dev was initialized after dropping iommu_sva_lock. This leaves a window where a racing bind can return a handle whose dev pointer is still NULL. A subsequent iommu_sva_unbind_device() can then dereference it via handle->dev->iommu_group. Initialize handle->dev before releasing iommu_sva_lock so any visible SVA handle is fully initialized.
Timeline
ID reserved
By Linux
Published
- 40 days later
· 40 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.21% · top 89% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected be51b1d6bbff48c7d1943a8ff1e5a55777807f6e – < c4c71368bc5c5b3840590d39b4cfa12d733cadf4
- affected be51b1d6bbff48c7d1943a8ff1e5a55777807f6e – < bcffb1c75da8fc9d51168ff9f09d471c26507912
- affected be51b1d6bbff48c7d1943a8ff1e5a55777807f6e – < 968e9a1f71140c86dc4092f6b361e997923f3813
- affected be51b1d6bbff48c7d1943a8ff1e5a55777807f6e – < 37a96a30617a4c96f048a5874c00509bc4fe4d85
- affected be51b1d6bbff48c7d1943a8ff1e5a55777807f6e – < 530f8f9c3546cb3ebee1b135375aaee08a073ebb
- affected 6.2
- unaffected < 6.2
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.109 – ≤ 6.12.*
- unaffected 6.18.50 – ≤ 6.18.*
- unaffected 7.2.4 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References5
- https://git.kernel.org/stable/c/c4c71368bc5c5b3840590d39b4cfa12d733cadf4 (opens in a new tab)
- https://git.kernel.org/stable/c/bcffb1c75da8fc9d51168ff9f09d471c26507912 (opens in a new tab)
- https://git.kernel.org/stable/c/968e9a1f71140c86dc4092f6b361e997923f3813 (opens in a new tab)
- https://git.kernel.org/stable/c/37a96a30617a4c96f048a5874c00509bc4fe4d85 (opens in a new tab)
- https://git.kernel.org/stable/c/530f8f9c3546cb3ebee1b135375aaee08a073ebb (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-76357 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-89451)Record last updated .