CVE-2021-47325

Updated: 2025-01-14 17:54:21.929003

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.


Links NIST CIRCL RHEL Ubuntu

Severity

Severity Score
CVSS Version 2.x 0
CVSS Version 3.x MEDIUM 5.5

Status

OS name Project name Version Score Severity Status Errata Last updated

Statement

CentOS 6 ELS kernel 2.6.32 5.5 MEDIUM Ignored 2025-01-16 01:43:30
CloudLinux 6 ELS kernel 2.6.32 5.5 MEDIUM Ignored 2025-01-16 01:43:30
Oracle Linux 6 ELS kernel 2.6.32 5.5 MEDIUM Ignored 2025-01-16 01:43:30
Ubuntu 16.04 ELS linux 4.4.0 5.5 MEDIUM Ignored 2025-01-16 01:47:06
Ubuntu 16.04 ELS linux-hwe 4.15.0 5.5 MEDIUM Ignored 2025-01-17 01:23:08