GSD-2022-1004003 tty: fix deadlock caused by calling printk() under tty_port->lock
A deadlock in the Linux kernel tty subsystem can cause a denial of service, requiring a kernel patch to resolve.
- 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-2022-1004003?
GSD-2022-1004003 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 v4.14.283 by commit 4c253caf9264d2aa47ee806a87986dd8eb91a5d9, it was introduced in version v4.14.60 by commit deb1feaad03a78b545c949e54582ae57b3c56982. For more details please see the references link.
Which versions are affected by GSD-2022-1004003?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1004003?
No fix has been published for GSD-2022-1004003 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-2022-1004003 being exploited?
There is no known exploitation of GSD-2022-1004003 in the wild and no public exploit code.