CVE-2021-47380 HID: amd_sfh: Fix potential NULL pointer dereference
A NULL pointer dereference in the AMD SFH HID driver can cause a kernel crash, leading to denial of service.
- 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-2021-47380?
CVE-2021-47380 is a high-severity vulnerability in Linux kernel, published on 21 May 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:
HID: amd_sfh: Fix potential NULL pointer dereference
devm_add_action_or_reset() can suddenly invoke amd_mp2_pci_remove() at registration that will cause NULL pointer dereference since corresponding data is not initialized yet. The patch moves initialization of data before devm_add_action_or_reset().
Found by Linux Driver Verification project (linuxtesting.org).
[[email protected]: rebase]
Weakness: CWE-476
Which versions are affected by CVE-2021-47380?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2021-47380?
Apply the vendor's patch.
Is CVE-2021-47380 being exploited?
There is no known exploitation of CVE-2021-47380 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2021-47380, GHSA-qpf6-m6mq-hcmq, UBUNTU-CVE-2021-47380.