GSD-2021-1000926 net: ethernet: fix potential use-after-free in ec_bhf_remove
A use-after-free vulnerability in the Linux kernel Ethernet driver could allow local attackers to execute code or cause a system crash.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1000926?
GSD-2021-1000926 is an use after free vulnerability in Kernel, published on 30 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
net: ethernet: fix potential use-after-free in ec_bhf_remove
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 19f88ca68ccf8771276a606765239b167654f84a, it was introduced in version v3.15 by commit 6af55ff52b02d492d45db88df3e461fa51a6f753. For more details please see the references link.
Which versions are affected by GSD-2021-1000926?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000926?
No fix has been published for GSD-2021-1000926 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-2021-1000926 being exploited?
There is no known exploitation of GSD-2021-1000926 in the wild and no public exploit code.