SB2026072762 - Out-of-bounds read in Linux kernel iio driver

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Main Vulnerability Database SB2026072762

SB2026072762 - Out-of-bounds read in Linux kernel iio driver

Published: July 27, 2026

Security Bulletin ID SB2026072762
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Out-of-bounds read (CVE-ID: CVE-2026-64496)

CWE-ID: CWE-125 - Out-of-bounds read

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


The vulnerability allows a local user to disclose sensitive information.

The vulnerability exists due to an out-of-bounds read in the iio event FIFO handling in drivers/iio/industrialio-event.c when reading from a newly created event file descriptor concurrently with FIFO reset. A local user can read from the file descriptor from another thread to disclose sensitive information.

Exploitation requires shared file descriptor table access between threads, creating a race window before the fd number is returned to userspace.


Remediation

Install update from vendor's website.

References