GSD-2021-1002821 IB/qib: Fix memory leak in qib_user_sdma_queue_pkts()
A memory leak in the IB/qib driver allows local attackers to cause denial of service by exhausting kernel memory.
- 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-2021-1002821?
GSD-2021-1002821 is a memory corruption vulnerability in Kernel, published on 30 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
IB/qib: Fix memory leak in qib_user_sdma_queue_pkts()
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 v5.15.12 by commit aefcc25f3a0cd28a87d11d41d30419a12cd26a34, it was introduced in version v5.15 by commit d39bf40e55e666b5905fdbd46a0dced030ce87be. For more details please see the references link.
Which versions are affected by GSD-2021-1002821?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1002821?
No fix has been published for GSD-2021-1002821 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-2021-1002821 being exploited?
There is no known exploitation of GSD-2021-1002821 in the wild and no public exploit code.