GSD-2022-1000708 blktrace: fix use after free for struct blk_trace
A use-after-free vulnerability in the Linux kernel's blktrace component allows local attackers to potentially escalate privileges or cause a system crash.
- 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-2022-1000708?
GSD-2022-1000708 is an use after free vulnerability in Kernel, published on 18 Mar 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
blktrace: fix use after free for struct blk_trace
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 v5.16.13 by commit 6418634238ade86f2b08192928787f39d8afb58c, it was introduced in version v5.12 by commit c0ea57608b691d6cde8aff23e11f9858a86b5918. For more details please see the references link.
Which versions are affected by GSD-2022-1000708?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1000708?
No fix has been published for GSD-2022-1000708 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-2022-1000708 being exploited?
There is no known exploitation of GSD-2022-1000708 in the wild and no public exploit code.