CVE-2021-47565 scsi: mpt3sas: Fix kernel panic during drive powercycle test
A null pointer dereference in the mpt3sas driver causes a kernel panic during drive power cycling, leading to system 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-2021-47565?
CVE-2021-47565 is a high-severity vulnerability in Linux kernel, published on 24 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:
scsi: mpt3sas: Fix kernel panic during drive powercycle test
While looping over shost's sdev list it is possible that one of the drives is getting removed and its sas_target object is freed but its sdev object remains intact.
Consequently, a kernel panic can occur while the driver is trying to access the sas_address field of sas_target object without also checking the sas_target object for NULL.
Which versions are affected by CVE-2021-47565?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2021-47565?
Apply the vendor's patch.
Is CVE-2021-47565 being exploited?
There is no known exploitation of CVE-2021-47565 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2021-47565, UBUNTU-CVE-2021-47565.