GSD-2022-1002709 tty: fix deadlock caused by calling printk() under tty_port->lock
A deadlock in the Linux kernel tty subsystem allows local attackers to cause a system denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2022-1002709?
GSD-2022-1002709 is a denial of service vulnerability in Kernel, published on 28 Jun 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
tty: fix deadlock caused by calling printk() under tty_port->lock
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 v5.18.3 by commit 0bcf44903ef4df742dcada86ccaedd25374ffb50, it was introduced in version v4.18 by commit b6da31b2c07c46f2dcad1d86caa835227a16d9ff. For more details please see the references link.
Which versions are affected by GSD-2022-1002709?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1002709?
No fix has been published for GSD-2022-1002709 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-2022-1002709 being exploited?
There is no known exploitation of GSD-2022-1002709 in the wild and no public exploit code.