CVE-2022-50327 ACPI: processor: idle: Check acpi_fetch_acpi_dev() return value
A missing null check in the Linux kernel ACPI processor idle code can cause a null pointer dereference, leading to 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-2022-50327?
CVE-2022-50327 is a medium-severity vulnerability in Debian Debian Linux, published on 15 Sep 2025. 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:
ACPI: processor: idle: Check acpi_fetch_acpi_dev() return value
The return value of acpi_fetch_acpi_dev() could be NULL, which would cause a NULL pointer dereference to occur in acpi_device_hid().
[ rjw: Subject and changelog edits, added empty line after if () ]
Weakness: CWE-476
Which versions are affected by CVE-2022-50327?
It affects 2 products.
Products include Debian Debian Linux, Linux kernel.
How do I fix CVE-2022-50327?
Apply the vendor's patch.
Is CVE-2022-50327 being exploited?
There is no known exploitation of CVE-2022-50327 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as AZL-74646, DEBIAN-CVE-2022-50327, GHSA-6xpj-qhg8-8h28, ROOT-OS-DEBIAN-11-CVE-2022-50327, ROOT-OS-UBUNTU-2204-CVE-2022-50327, UBUNTU-CVE-2022-50327.