CVE-2026-89451
CVE CVE-2026-89451EUVD EUVD-2026-76357Published 2026-09-11T19:43:16.000Z
What the advisory describes
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.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux patch: 6.18.50; be51b1d6bbff48c7d1943a8ff1e5a55777807f6e <530f8f9c3546cb3ebee1b135375aaee08a073ebb; be51b1d6bbff48c7d1943a8ff1e5a55777807f6e <968e9a1f71140c86dc4092f6b361e997923f3813; 6.2; patch: 7.3-rc1; patch: 6.12.109; patch: 7.2.4; be51b1d6bbff48c7d1943a8ff1e5a55777807f6e <37a96a30617a4c96f048a5874c00509bc4fe4d85; be51b1d6bbff48c7d1943a8ff1e5a55777807f6e <bcffb1c75da8fc9d51168ff9f09d471c26507912; patch: 0
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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