CVE-2021-47325
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2021
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
iommu/arm-smmu: Fix arm_smmu_device refcount leak in address translation
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| d4a44f0750bb9bf7c44c22444a482756b2344a79 | affected | git | b11220803ad14a2a880cc06d8e01fe2548cc85b0 | Unavailable | None listed |
| d4a44f0750bb9bf7c44c22444a482756b2344a79 | affected | git | 43d1aaa1965f9b58035196dac49b1e1e6c9c25eb | Unavailable | None listed |
| d4a44f0750bb9bf7c44c22444a482756b2344a79 | affected | git | 0f0c5ea09139777d90729d408b807021f2ea6492 | Unavailable | None listed |
| d4a44f0750bb9bf7c44c22444a482756b2344a79 | affected | git | 5f9741a9a91f25c89e04b408cd61e3ab050ce24b | Unavailable | None listed |
| d4a44f0750bb9bf7c44c22444a482756b2344a79 | affected | git | 7c8f176d6a3fa18aa0f8875da6f7c672ed2a8554 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.0 | Unavailable | None listed |
| 5.4.134 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.52 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.12.19 | unaffected | semver | Unavailable | 5.12.* | None listed |
| 5.13.4 | unaffected | semver | Unavailable | 5.13.* | None listed |
| 5.14 | unaffected | original_commit_for_fix | Unavailable | * | None listed |