GSD-2022-1003743 tracing: Fix potential double free in create_var_ref()
A potential double free in the Linux Kernel tracing subsystem could allow attackers to cause a denial of service or execute arbitrary code.
- Exploited in the wild
- Not known
- Login needed
- Not stated
- Attackable
- Not stated
- Victim action needed
- Not stated
- Fix
- None listed
What is GSD-2022-1003743?
GSD-2022-1003743 is an use after free vulnerability in Kernel, published on 28 Jun 2022.
Official description
tracing: Fix potential double free in create_var_ref()
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 v5.4.198 by commit c27f744ceefadc7bbeb14233b6abc150ced617d2, it was introduced in version v4.17 by commit 067fe038e70f6e64960d26a79c4df5f1413d0f13. For more details please see the references link.
Which versions are affected by GSD-2022-1003743?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1003743?
No fix has been published for GSD-2022-1003743 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-2022-1003743 being exploited?
There is no known exploitation of GSD-2022-1003743 in the wild and no public exploit code.