GSD-2021-1001455 dm btree remove: assign new_root only when removal succeeds
A logic error in the Linux kernel device-mapper btree removal could lead to a null pointer dereference, potentially causing a system crash.
- Exploited in the wild
- Not known
- Login needed
- Not stated
- Attackable
- Not stated
- Victim action needed
- Not stated
- Fix
- None listed
What is GSD-2021-1001455?
GSD-2021-1001455 is a vulnerability in Kernel, published on 3 Aug 2021.
Official description
dm btree remove: assign new_root only when removal succeeds
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 v4.9.276 by commit c154775619186781aaf8a99333ac07437a1768d5. For more details please see the references link.
Which versions are affected by GSD-2021-1001455?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001455?
No fix has been published for GSD-2021-1001455 yet. Limit exposure of the affected software until one is available.
Is GSD-2021-1001455 being exploited?
There is no known exploitation of GSD-2021-1001455 in the wild and no public exploit code.