GSD-2021-1001295 powerpc/mm: Fix lockup on kernel exec fault
A flaw in the Linux kernel powerpc memory management can cause a system lockup during kernel execution faults, leading to denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Not stated
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1001295?
GSD-2021-1001295 is a denial of service vulnerability in Kernel, published on 3 Aug 2021.
Official description
powerpc/mm: Fix lockup on kernel exec fault
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 v5.10.51 by commit d2e52d4664097a6c1f591d869ec594bd7a0d4925, it was introduced in version v4.14 by commit d3ca587404b36943b02df87406054ce73cc49500. For more details please see the references link.
Which versions are affected by GSD-2021-1001295?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001295?
No fix has been published for GSD-2021-1001295 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-2021-1001295 being exploited?
There is no known exploitation of GSD-2021-1001295 in the wild and no public exploit code.