GSD-2022-1000441 fs/proc: task_mmu.c: don't read mapcount for migration entry
A local attacker can read mapcount for migration entries in the Linux kernel, potentially disclosing sensitive memory information.
- 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-2022-1000441?
GSD-2022-1000441 is a vulnerability in Kernel, published on 27 Feb 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
fs/proc: task_mmu.c: don't read mapcount for migration entry
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 v5.15.25 by commit a8dd0cfa37792863b6c4bf9542975212a6715d49, it was introduced in version v4.5 by commit e9b61f19858a5d6c42ce2298cf138279375d0d9b. For more details please see the references link.
Which versions are affected by GSD-2022-1000441?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1000441?
No fix has been published for GSD-2022-1000441 yet. Limit exposure of the affected software until one is available.
Is GSD-2022-1000441 being exploited?
There is no known exploitation of GSD-2022-1000441 in the wild and no public exploit code.