CVE-2021-47204 net: dpaa2-eth: fix use-after-free in dpaa2_eth_remove
A use-after-free vulnerability in the Linux kernel's DPAA2 Ethernet driver allows attackers to potentially execute code or cause a system crash.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-47204?
CVE-2021-47204 is a high-severity use after free vulnerability in Linux kernel, published on 10 Apr 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
net: dpaa2-eth: fix use-after-free in dpaa2_eth_remove
Access to netdev after free_netdev() will cause use-after-free bug. Move debug log before free_netdev() call to avoid it.
Weakness: CWE-416
Which versions are affected by CVE-2021-47204?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2021-47204?
Apply the vendor's patch.
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 CVE-2021-47204 being exploited?
There is no known exploitation of CVE-2021-47204 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2021-47204, GHSA-9rc8-c76x-36m2, UBUNTU-CVE-2021-47204.