GSD-2021-1000069 ACPI: GTDT: Don't corrupt interrupt mappings on watchdow probe failure
A flaw in the Linux Kernel ACPI GTDT driver can corrupt interrupt mappings during watchdog probe failures, potentially leading to system instability or 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-2021-1000069?
GSD-2021-1000069 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
ACPI: GTDT: Don't corrupt interrupt mappings on watchdow probe failure
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 v5.12.3 by commit 596e079c362ac17ed02aa1b99fdc444d62072a01, it was introduced in version v4.12 by commit ca9ae5ec4ef0ed13833b03297ab319676965492c. For more details please see the references link.
Which versions are affected by GSD-2021-1000069?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000069?
No fix has been published for GSD-2021-1000069 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-2021-1000069 being exploited?
There is no known exploitation of GSD-2021-1000069 in the wild and no public exploit code.