SB20261022256 - NULL pointer dereference in Linux kernel iio health driver
Published: October 22, 2026
Security Bulletin ID
SB20261022256
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2026-98665)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: 5.7 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause a denial of service through a kernel crash.
The vulnerability exists due to a null pointer dereference in max30102_interrupt_handler() in the Linux kernel when an interrupt arrives while no buffer is enabled. A local user can cause the handler to dereference a null active_scan_mask pointer to crash the kernel if able to induce this interrupt condition.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/2a74f30a7bb305cdc5c3e3e9239b32bb84f3529f
- https://git.kernel.org/stable/c/60699102827fdb51f9591414165359c8e867f302
- https://git.kernel.org/stable/c/8d6f98972fe2bd6f73f39d982af0c85d766a1503
- https://git.kernel.org/stable/c/eeb23ba97bd8016e815ef70300b8d34a0a316b90
- https://git.kernel.org/stable/c/f0ea4824deebf21dacfbe397c4b0a5fd3e745a8d