GSD-2021-1000432 spi: fsl-lpspi: Fix PM reference leak in lpspi_prepare_xfer_hardware()
A power management reference leak in the Freescale LPSPI driver can lead to resource exhaustion and denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1000432?
GSD-2021-1000432 is a denial of service vulnerability in Kernel, published on 31 May 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
spi: fsl-lpspi: Fix PM reference leak in lpspi_prepare_xfer_hardware()
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 v5.4.119 by commit 4a01ad002d2e03c399af536562693752af7c81b1, it was introduced in version v5.2 by commit 944c01a889d97dc08e1b71f4ed868f4023fd6034. For more details please see the references link.
Which versions are affected by GSD-2021-1000432?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000432?
No fix has been published for GSD-2021-1000432 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is GSD-2021-1000432 being exploited?
There is no known exploitation of GSD-2021-1000432 in the wild and no public exploit code.