VULNERABILITY INTELLIGENCE

CVE-2021-47325

CVSS score5.5 MEDIUM
EPSS probability0.25%
CISA KEVNot currently listed
Published2024-05-21
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

In the Linux kernel, the following vulnerability has been resolved: iommu/arm-smmu: Fix arm_smmu_device refcount leak in address translation The reference counting issue happens in several exception handling paths of arm_smmu_iova_to_phys_hard(). When those error scenarios occur, the function forgets to decrease the refcount of "smmu" increased by arm_smmu_rpm_get(), causing a refcount leak. Fix this issue by jumping to "out" label when those error scenarios occur.

Weakness classification

  • nvd@nist.gov: NVD-CWE-Other

Primary references