Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected d4a44f0750bb9bf7c44c22444a482756b2344a79 before b11220803ad14a2a880cc06d8e01fe2548cc85b0; affected d4a44f0750bb9bf7c44c22444a482756b2344a79 before 43d1aaa1965f9b58035196dac49b1e1e6c9c25eb; affected d4a44f0750bb9bf7c44c22444a482756b2344a79 before 0f0c5ea09139777d90729d408b807021f2ea6492; affected d4a44f0750bb9bf7c44c22444a482756b2344a79 before 5f9741a9a91f25c89e04b408cd61e3ab050ce24b; affected d4a44f0750bb9bf7c44c22444a482756b2344a79 before 7c8f176d6a3fa18aa0f8875da6f7c672ed2a8554 |
| Linux / Linux | affected 5.0; unaffected 0 before 5.0; unaffected 5.4.134 through 5.4.*; unaffected 5.10.52 through 5.10.*; unaffected 5.12.19 through 5.12.*; unaffected 5.13.4 through 5.13.*; unaffected 5.14 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/b11220803ad14a2a880cc06d8e01fe2548cc85b0
- https://git.kernel.org/stable/c/43d1aaa1965f9b58035196dac49b1e1e6c9c25eb
- https://git.kernel.org/stable/c/0f0c5ea09139777d90729d408b807021f2ea6492
- https://git.kernel.org/stable/c/5f9741a9a91f25c89e04b408cd61e3ab050ce24b
- https://git.kernel.org/stable/c/7c8f176d6a3fa18aa0f8875da6f7c672ed2a8554
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.
- https://git.kernel.org/stable/c/b11220803ad14a2a880cc06d8e01fe2548cc85b0
- https://git.kernel.org/stable/c/43d1aaa1965f9b58035196dac49b1e1e6c9c25eb
- https://git.kernel.org/stable/c/0f0c5ea09139777d90729d408b807021f2ea6492
- https://git.kernel.org/stable/c/5f9741a9a91f25c89e04b408cd61e3ab050ce24b
- https://git.kernel.org/stable/c/7c8f176d6a3fa18aa0f8875da6f7c672ed2a8554