GSD-2021-1000935 net: bridge: fix vlan tunnel dst refcnt when egressing
A reference counting bug in the Linux kernel bridge VLAN tunnel egress path can lead to resource leaks or crashes, requiring a kernel patch.
- Exploited in the wild
- Not known
- Login needed
- Not stated
- Attackable
- Local or same network only
- Victim action needed
- Not stated
- Fix
- None listed
What is GSD-2021-1000935?
GSD-2021-1000935 is a vulnerability in Kernel, published on 30 Jun 2021. It can only be exploited from the same machine or local network.
Official description
net: bridge: fix vlan tunnel dst refcnt when egressing
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 v5.4.128 by commit 79855be6445b6592bddb7bd7167083ec8cdbd73f, it was introduced in version v4.11 by commit 11538d039ac6efcf4f1a6c536e1b87cd3668a9fd. For more details please see the references link.
Which versions are affected by GSD-2021-1000935?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000935?
No fix has been published for GSD-2021-1000935 yet. Limit exposure of the affected software until one is available.
Is GSD-2021-1000935 being exploited?
There is no known exploitation of GSD-2021-1000935 in the wild and no public exploit code.