GSD-2022-1001953 mm: fix unexpected zeroed page mapping with zram swap
A memory corruption flaw in the Linux kernel's zram swap implementation can lead to unexpected zeroed page mappings, potentially causing denial of service or information disclosure.
- 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-2022-1001953?
GSD-2022-1001953 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
mm: fix unexpected zeroed page mapping with zram swap
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 v5.10.112 by commit 20ed94f8181a25212e7404e44958e234f407624b, it was introduced in version v4.15 by commit 0bcac06f27d7528591c27ac2b093ccd71c5d0168. For more details please see the references link.
Which versions are affected by GSD-2022-1001953?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1001953?
No fix has been published for GSD-2022-1001953 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-2022-1001953 being exploited?
There is no known exploitation of GSD-2022-1001953 in the wild and no public exploit code.