GSD-2021-1000247 i2c: cadence: fix reference leak when pm_runtime_get_sync fails
A reference leak in the Cadence I2C 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
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1000247?
GSD-2021-1000247 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
i2c: cadence: fix reference leak when pm_runtime_get_sync fails
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 v5.12.4 by commit a45fc41beed8e0fe31864619c34aa00797fb60c1, it was introduced in version v4.5 by commit 7fa32329ca03148fb2c07b4ef3247b8fc0488d6a. For more details please see the references link.
Which versions are affected by GSD-2021-1000247?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000247?
No fix has been published for GSD-2021-1000247 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-2021-1000247 being exploited?
There is no known exploitation of GSD-2021-1000247 in the wild and no public exploit code.