GSD-2021-1001651 RDMA/cma: Fix listener leak in rdma_cma_listen_on_all() failure
A listener leak in the Linux Kernel RDMA subsystem can lead to resource exhaustion and 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-2021-1001651?
GSD-2021-1001651 is a memory corruption vulnerability in Kernel, published on 19 Oct 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
RDMA/cma: Fix listener leak in rdma_cma_listen_on_all() failure
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 v5.10.71 by commit 3f4e68902d2e545033c80d7ad62fd9a439e573f4, it was introduced in version v5.10.4 by commit 70ba8b1697e35c04ea5f22edb6e401aeb1208d96. For more details please see the references link.
Which versions are affected by GSD-2021-1001651?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001651?
No fix has been published for GSD-2021-1001651 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-2021-1001651 being exploited?
There is no known exploitation of GSD-2021-1001651 in the wild and no public exploit code.