GSD-2022-1005819 dm thin: fix use-after-free crash in dm_sm_register_threshold_callback
A use-after-free flaw in the Linux kernel's device-mapper thin provisioning can cause a system crash, requiring local privileged access to exploit.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2022-1005819?
GSD-2022-1005819 is an use after free vulnerability in Kernel, published on 17 Sep 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
dm thin: fix use-after-free crash in dm_sm_register_threshold_callback
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 v5.10.137 by commit 5e2cf705155a1514be3c96ea664a9cd356998ee7, it was introduced in version v3.10 by commit ac8c3f3df65e487bbcabf274eeeb9cd222f5da1e. For more details please see the references link.
Which versions are affected by GSD-2022-1005819?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1005819?
No fix has been published for GSD-2022-1005819 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is GSD-2022-1005819 being exploited?
There is no known exploitation of GSD-2022-1005819 in the wild and no public exploit code.