SB2026050933 - NULL pointer dereference in Linux kernel iio imu driver

Description

This security bulletin contains information about 1 vulnerability.

1) NULL pointer dereference (CVE-ID: CVE-2026-43356)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in adis_init() when initializing ADIS IMU drivers without custom ops set. A local user can trigger initialization of a vulnerable driver to cause a denial of service.

The issue occurs because some drivers rely on default operations being assigned while the structure is zero-initialized, leaving the ops pointer NULL at the time of initialization.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/1a48f94c63a078e7b6a2e59a637fc0858dc6510c
• https://git.kernel.org/stable/c/9990cd4f8827bd1ae3fb6eb7407630d8d463c430
• https://git.kernel.org/stable/c/ba19dd366528b961430f5195c2e382420703074f