SB20260720308 - Division by zero in Linux kernel iio adc driver
Published: July 20, 2026
Security Bulletin ID
SB20260720308
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) Division by zero (CVE-ID: CVE-2026-63935)
CWE-ID: CWE-369 - Divide By Zero
CVSSv4: 6.8 [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]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to division by zero in the nxp_sar_adc_write_raw function in the nxp-sar-adc driver when writing the sampling_frequency sysfs attribute. A local user can write a zero or negative value to the attribute to cause a denial of service.
The issue is triggered through the IIO sysfs interface.
Remediation
Install update from vendor's website.