GSD-2021-1001544 net: macb: fix use after free on rmmod
A use-after-free vulnerability in the Linux kernel macb network driver allows local attackers with root privileges to potentially execute code or escalate privileges.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1001544?
GSD-2021-1001544 is an use after free 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
net: macb: fix use after free on rmmod
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 v4.14.249 by commit a7d521cc726f30b8e679a6f36d04b18a8ab3c536. For more details please see the references link.
Which versions are affected by GSD-2021-1001544?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001544?
No fix has been published for GSD-2021-1001544 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is GSD-2021-1001544 being exploited?
There is no known exploitation of GSD-2021-1001544 in the wild and no public exploit code.