GSD-2023-1000928 dm integrity: Fix UAF in dm_integrity_dtr()
A use-after-free vulnerability in the Linux kernel dm integrity module allows local attackers with high privileges to potentially execute code or escalate privileges.
- 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-2023-1000928?
GSD-2023-1000928 is an use after free vulnerability in Kernel, published on 17 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
dm integrity: Fix UAF in dm_integrity_dtr()
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 v5.15.87 by commit 9215b25f2e105032114e9b92c9783a2a84ee8af9, it was introduced in version v4.12 by commit 7eada909bfd7ac90a4522e56aa3179d1fd68cd14. For more details please see the references link.
Which versions are affected by GSD-2023-1000928?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1000928?
No fix has been published for GSD-2023-1000928 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-2023-1000928 being exploited?
There is no known exploitation of GSD-2023-1000928 in the wild and no public exploit code.