CVE-2026-31627

high

Description

In the Linux kernel, the following vulnerability has been resolved: i2c: s3c24xx: check the size of the SMBUS message before using it The first byte of an i2c SMBUS message is the size, and it should be verified to ensure that it is in the range of 0..I2C_SMBUS_BLOCK_MAX before processing it. This is the same logic that was added in commit a6e04f05ce0b ("i2c: tegra: check msg length in SMBUS block read") to the i2c tegra driver.

References

https://git.kernel.org/stable/c/d87d5620125a03b1eadbd5df39748215d3db7ddb

https://git.kernel.org/stable/c/aaaaec39ddbcd06770dca7f1adebc3b1242ebe7b

https://git.kernel.org/stable/c/71b3c316b22c555d2769126a92b1244b15a9750d

https://git.kernel.org/stable/c/377fae22a137b6b89f3f32399a58c52cf2325416

Details

Source: Mitre, NVD

Published: 2026-04-24

Updated: 2026-04-24

Risk Information

CVSS v2

Base Score: 2.1

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N

Severity: Low

CVSS v3

Base Score: 7.1

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Severity: High