GSD-2021-1000472 spi: Fix use-after-free with devm_spi_alloc_*
A use-after-free vulnerability in the Linux kernel SPI driver allows local attackers to potentially execute code or cause a system crash.
- 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-2021-1000472?
GSD-2021-1000472 is an use after free 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: Fix use-after-free with devm_spi_alloc_*
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 v4.14.233 by commit 8e029707f50a82c53172359c686b2536ab54e58c, it was introduced in version v4.14.212 by commit 8c45a1c6c951bbe7f95db78fcab46f7337364468. For more details please see the references link.
Which versions are affected by GSD-2021-1000472?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000472?
No fix has been published for GSD-2021-1000472 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is GSD-2021-1000472 being exploited?
There is no known exploitation of GSD-2021-1000472 in the wild and no public exploit code.