Tracker / CVE-2021-47325
CVE-2021-47325
Medium 5.5
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.
Affected products and versions
| linux | linux_kernel · … → 5.4.134 |
|---|---|
| linux | linux_kernel · 5.11 → 5.12.19 |
| linux | linux_kernel · 5.13 → 5.13.4 |
| linux | linux_kernel · 5.5 → 5.10.52 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.