SB20261022272 - Use-after-free in Linux kernel iio adc driver

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB20261022272

SB20261022272 - Use-after-free in Linux kernel iio adc driver

Published: October 22, 2026

Security Bulletin ID SB20261022272
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Use-after-free (CVE-ID: CVE-2026-98677)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 5.7 [CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a local privileged user to corrupt kernel memory and potentially cause a denial of service.

The vulnerability exists due to use-after-free in the Linux kernel's ad_sigma_delta ADC driver when device unbinding releases the sample buffer before the trigger handler is detached. A local privileged user can trigger device unbinding while data-ready interrupts remain active to cause ad_sd_trigger_handler() to copy incoming samples into freed memory, potentially crashing the system.


Remediation

Install update from vendor's website.

References