GSD-2021-1002391 sata_fsl: fix UAF in sata_fsl_port_stop when rmmod sata_fsl
A use-after-free vulnerability in the sata_fsl kernel driver allows local attackers with root privileges to cause a system crash or potentially escalate privileges.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1002391?
GSD-2021-1002391 is an use after free vulnerability in Kernel, published on 19 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
sata_fsl: fix UAF in sata_fsl_port_stop when rmmod sata_fsl
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 v4.14.257 by commit 325ea49fc43cbc03a5e1e37de8f0ca6357ced4b1, it was introduced in version v2.6.24 by commit faf0b2e5afe7dae072d2715763c7f992b612b628. For more details please see the references link.
Which versions are affected by GSD-2021-1002391?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1002391?
No fix has been published for GSD-2021-1002391 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-2021-1002391 being exploited?
There is no known exploitation of GSD-2021-1002391 in the wild and no public exploit code.