CVE-2026-31627

i2c: s3c24xx: check the size of the SMBUS message before using it

High · published April 24, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
7.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00179 · 7.1th percentile
Published
2026-04-24T14:42Z
EPSS history
Timeline
  • 24 APR 14:42Z
    i2c: s3c24xx: check the size of the SMBUS message before using it
    cvelistv5