Refcount Leak in ti_dra7_xbar_route_allocate in dmaengine: ti
Summary
GSD-2022-1004802: dmaengine: ti: Fix refcount leak in ti_dra7_xbar_route_allocate. Affects Kernel versions >= ec9bfa1e1a796ef7acc2e55917c9b8be5a79e70e, < 3bd66010398871807c1cebacee07d60ded1b1402. No fix is published. How to fix ↓
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Background
The dmaengine: ti package is a component of the Linux Kernel that provides support for DMA (Direct Memory Access) engines on Texas Instruments (TI) devices. DMA engines allow for efficient data transfers between different devices without involving the CPU. The ti_dra7_xbar_route_allocate function in this package is responsible for allocating resources for routing DMA transfers on TI DRA7 devices.
Vulnerability Detail
The ti_dra7_xbar_route_allocate function in dmaengine: ti suffers from a refcount leak vulnerability. This vulnerability was introduced in version v4.5 of the Linux Kernel and was fixed in version v4.19.252. The vulnerability occurs when the function fails to properly release a reference count, leading to a resource leak. An attacker could potentially exploit this vulnerability to exhaust system resources, resulting in a denial-of-service condition or other unexpected behavior.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no known workaround for this vulnerability. It is recommended to apply the fix mentioned above.
Conclusion
The refcount leak vulnerability in ti_dra7_xbar_route_allocate in dmaengine: ti can be fixed by updating the Linux Kernel to version v4.19.252 or later. It is important to apply this fix to prevent potential resource exhaustion and unexpected behavior. For more information and assistance with vulnerability remediation, please contact DevNack.com.
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FAQ
dmaengine: ti is a component of the Linux Kernel that provides support for DMA engines on Texas Instruments (TI) devices. It allows for efficient data transfers between different devices without involving the CPU.
The vulnerability could potentially be exploited by an attacker to exhaust system resources, leading to a denial-of-service condition or other unexpected behavior.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v4.19.252 or later. This fix can be obtained by pulling the latest updates from the official Linux Kernel repository.
There is no known workaround for this vulnerability. It is recommended to apply the fix mentioned above.
For more information about this vulnerability, you can refer to the vulnerability details in the Open Source Vulnerability format. You can also reach out to info@devnack.com for further support on vulnerability remediation.
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