GSD-2022-1003973 coresight: cpu-debug: Replace mutex with mutex_trylock on panic notifier
A locking issue in the Linux kernel coresight cpu-debug driver could cause a deadlock during panic, leading to 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-2022-1003973?
GSD-2022-1003973 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
coresight: cpu-debug: Replace mutex with mutex_trylock on panic notifier
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 c2c7824b0bc6e42a4e702bc0b3dd61915e90b29f, it was introduced in version v4.13 by commit 2227b7c7463402ce92706a6f35c82cad6e8ee19a. For more details please see the references link.
Which versions are affected by GSD-2022-1003973?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1003973?
No fix has been published for GSD-2022-1003973 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-2022-1003973 being exploited?
There is no known exploitation of GSD-2022-1003973 in the wild and no public exploit code.