CVE-2026-89451
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
iommu/sva: Set handle->dev before the SVA handle is visible
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| be51b1d6bbff48c7d1943a8ff1e5a55777807f6e | affected | git | c4c71368bc5c5b3840590d39b4cfa12d733cadf4 | Unavailable | None listed |
| be51b1d6bbff48c7d1943a8ff1e5a55777807f6e | affected | git | bcffb1c75da8fc9d51168ff9f09d471c26507912 | Unavailable | None listed |
| be51b1d6bbff48c7d1943a8ff1e5a55777807f6e | affected | git | 968e9a1f71140c86dc4092f6b361e997923f3813 | Unavailable | None listed |
| be51b1d6bbff48c7d1943a8ff1e5a55777807f6e | affected | git | 37a96a30617a4c96f048a5874c00509bc4fe4d85 | Unavailable | None listed |
| be51b1d6bbff48c7d1943a8ff1e5a55777807f6e | affected | git | 530f8f9c3546cb3ebee1b135375aaee08a073ebb | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 6.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.2 | Unavailable | None listed |
| 6.6.160 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.109 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.50 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.4 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |