GSD-2021-1001393 RDMA/cma: Fix rdma_resolve_route() memory leak
A memory leak in the Linux Kernel RDMA subsystem allows attackers to cause a denial of service by exhausting system memory.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1001393?
GSD-2021-1001393 is a denial of service vulnerability in Kernel, published on 3 Aug 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
RDMA/cma: Fix rdma_resolve_route() memory leak
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 v4.19.198 by commit 4893c938f2a140a74be91779e45e4a7fa111198f. For more details please see the references link.
Which versions are affected by GSD-2021-1001393?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001393?
No fix has been published for GSD-2021-1001393 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is GSD-2021-1001393 being exploited?
There is no known exploitation of GSD-2021-1001393 in the wild and no public exploit code.