GSD-2021-1001167 io_uring: fix memleak in io_init_wq_offload()
A memory leak in the Linux kernel io_uring subsystem allows local attackers to cause denial of service.
- 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-2021-1001167?
GSD-2021-1001167 is a memory corruption vulnerability in Kernel, published on 3 Aug 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
io_uring: fix memleak in io_init_wq_offload()
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 v5.13.6 by commit 502731a03f27cba1513fbbff77e508185ffce5bb, it was introduced in version v5.12 by commit e941894eae31b52f0fd9bdb3ce20620afa152f45. For more details please see the references link.
Which versions are affected by GSD-2021-1001167?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001167?
No fix has been published for GSD-2021-1001167 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is GSD-2021-1001167 being exploited?
There is no known exploitation of GSD-2021-1001167 in the wild and no public exploit code.