CVE-2021-46934: Linux Kernel

Low severity, CVSS 3.3. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: i2c: validate user data in compat ioctl Wrong user data may cause warning in i2c_transfer(), ex: zero msgs. Userspace should not be able to trigger warnings, so this patch adds validation checks for user data in compact ioctl to prevent reported warnings

Affected products

• Linux Linux Kernel: from 4.15.0, before 4.19.224 (fixed in 4.19.224); from 4.20.0, before 5.4.170 (fixed in 5.4.170); from 5.5.0, before 5.10.90 (fixed in 5.10.90); from 5.11.0, before 5.15.13 (fixed in 5.15.13)

Published 2024-02-27. Last modified 2026-06-17.