CVE-2026-45931
accel/amdxdna: Hold mm structure across iommu_sva_unbind_device()
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: Hold mm structure across iommu_sva_unbind_device() Some tests trigger a crash in iommu_sva_unbind_device() due to accessing iommu_mm after the associated mm structure has been freed. Fix this by taking an explicit reference to the mm structure after successfully binding the device, and releasing it only after the device is unbound. This ensures the mm remains valid for the entire SVA bind/unbind lifetime.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | May 27, 2026 |
| Last Updated | May 30, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linux / Linux
be462c97b7dfd24999babe39cce3de224ebe1f80 < f6b4c1d98a7b8040d4d02e89425b3942016a2c2c be462c97b7dfd24999babe39cce3de224ebe1f80 < f31ccf6278132a35a652fe5eeac3941e1e912398 be462c97b7dfd24999babe39cce3de224ebe1f80 < a9162439ad792afcddc04718408ec1380b7a5f63
Linux / Linux
6.14