GSD-2021-1001921 isdn: mISDN: Fix sleeping function called from invalid context
A sleeping function called from invalid context in the Linux kernel mISDN driver can cause a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not stated
- Attackable
- Not stated
- Victim action needed
- Not stated
- Fix
- None listed
What is GSD-2021-1001921?
GSD-2021-1001921 is a denial of service vulnerability in Kernel, published on 14 Nov 2021.
Official description
isdn: mISDN: Fix sleeping function called from invalid context
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 v4.4.290 by commit 6f95c97e0f9d6eb39c3f2cb45e8fa4268d1b372b. For more details please see the references link.
Which versions are affected by GSD-2021-1001921?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001921?
No fix has been published for GSD-2021-1001921 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-2021-1001921 being exploited?
There is no known exploitation of GSD-2021-1001921 in the wild and no public exploit code.