GSD-2021-1001196 iommu/arm-smmu: Fix arm_smmu_device refcount leak in address translation
A refcount leak in the ARM SMMU driver can lead to resource exhaustion and denial of service, requiring a kernel patch.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Not stated
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1001196?
GSD-2021-1001196 is a memory corruption vulnerability in Kernel, published on 3 Aug 2021.
Official description
iommu/arm-smmu: Fix arm_smmu_device refcount leak in address translation
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.13.4 by commit 5f9741a9a91f25c89e04b408cd61e3ab050ce24b. For more details please see the references link.
Which versions are affected by GSD-2021-1001196?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001196?
No fix has been published for GSD-2021-1001196 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is GSD-2021-1001196 being exploited?
There is no known exploitation of GSD-2021-1001196 in the wild and no public exploit code.