GSD-2022-1002468 mmmremap.c: avoid pointless invalidate_range_start/end on mremap(old_size=0)
An optimization fix in the Linux kernel avoids unnecessary invalidation calls during mremap operations with zero old size.
- Exploited in the wild
- Not known
- Login needed
- Not stated
- Attackable
- Not stated
- Victim action needed
- Not stated
- Fix
- None listed
What is GSD-2022-1002468?
GSD-2022-1002468 is a vulnerability in Kernel, published on 24 Apr 2022.
Official description
mmmremap.c: avoid pointless invalidate_range_start/end on mremap(old_size=0)
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 v4.9.311 by commit a05540f3903bd8295e8c4cd90dd3d416239a115b. For more details please see the references link.
Which versions are affected by GSD-2022-1002468?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1002468?
No fix has been published for GSD-2022-1002468 yet. Limit exposure of the affected software until one is available.
Is GSD-2022-1002468 being exploited?
There is no known exploitation of GSD-2022-1002468 in the wild and no public exploit code.