SB20261022267 - Division by zero in Linux kernel iio adc driver
Published: October 22, 2026
Security Bulletin ID
SB20261022267
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-2026-98672)
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 potentially cause a denial of service.
The vulnerability exists due to an unchecked division by zero in the Linux kernel STM32 ADC driver's stm32_adc_read_raw() function when processing a failed conversion or a zero conversion result. A local user can request a processed channel reading that encounters such a conversion result to potentially trigger a kernel fault and cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/30d27899cbba5b080954b5d3741bd535806c3101
- https://git.kernel.org/stable/c/55f1cebee909c9a0d5c2e494bcfaabed54750eb5
- https://git.kernel.org/stable/c/6dd3bf785d0307d1cf8f4a97c2240b0af14bef50
- https://git.kernel.org/stable/c/ab4e57adead252dd7f947baed6178f32ede88d38
- https://git.kernel.org/stable/c/c5de6a6f855fdcf1e0ea549fb227a316db51c405