GSD-2022-1001997 powerpc/secvar: fix refcount leak in format_show()
A refcount leak in the Linux kernel powerpc secvar format_show function can lead to resource exhaustion and 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-2022-1001997?
GSD-2022-1001997 is a memory corruption vulnerability in Kernel, published on 24 Apr 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
powerpc/secvar: fix refcount leak in format_show()
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 v5.10.111 by commit 02222bf4f0a27f6eba66d1f597cdb5daadd51829. For more details please see the references link.
Which versions are affected by GSD-2022-1001997?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1001997?
No fix has been published for GSD-2022-1001997 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is GSD-2022-1001997 being exploited?
There is no known exploitation of GSD-2022-1001997 in the wild and no public exploit code.