CVE-2025-37969 iio: imu: st_lsm6dsx: fix possible lockup in st_lsm6dsx_read_tagged_fifo
A local attacker can cause a system lockup in the Linux kernel's ST LSM6DSX IMU driver by triggering an infinite loop when the pattern length is zero.
- 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-2025-37969?
CVE-2025-37969 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 20 May 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:
iio: imu: st_lsm6dsx: fix possible lockup in st_lsm6dsx_read_tagged_fifo
Prevent st_lsm6dsx_read_tagged_fifo from falling in an infinite loop in case pattern_len is equal to zero and the device FIFO is not empty.
Weakness: CWE-667
Which versions are affected by CVE-2025-37969?
It affects 2 products.
Products include Debian Debian Linux, Linux kernel.
How do I fix CVE-2025-37969?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-37969 being exploited?
There is no known exploitation of CVE-2025-37969 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as BELL-CVE-2025-37969, DEBIAN-CVE-2025-37969, GHSA-9889-58r3-p8h2, ROOT-OS-DEBIAN-11-CVE-2025-37969, ROOT-OS-DEBIAN-12-CVE-2025-37969, ROOT-OS-UBUNTU-2204-CVE-2025-37969 and 2 more.