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Description

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.

PUBLISHED Reserved 2026-05-13 | Published 2026-05-27 | Updated 2026-05-30 | Assigner Linux




HIGH: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Product status

Default status
unaffected

be462c97b7dfd24999babe39cce3de224ebe1f80 (git) before f6b4c1d98a7b8040d4d02e89425b3942016a2c2c
affected

be462c97b7dfd24999babe39cce3de224ebe1f80 (git) before f31ccf6278132a35a652fe5eeac3941e1e912398
affected

be462c97b7dfd24999babe39cce3de224ebe1f80 (git) before a9162439ad792afcddc04718408ec1380b7a5f63
affected

Default status
affected

6.14
affected

Any version before 6.14
unaffected

6.18.14 (semver)
unaffected

6.19.4 (semver)
unaffected

7.0 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/f6b4c1d98a7b8040d4d02e89425b3942016a2c2c

git.kernel.org/...c/f31ccf6278132a35a652fe5eeac3941e1e912398

git.kernel.org/...c/a9162439ad792afcddc04718408ec1380b7a5f63

cve.org (CVE-2026-45931)

nvd.nist.gov (CVE-2026-45931)

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