CVE-2026-31627

HIGH

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

Title source: cna
STIX 2.1

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 (6)

Core 6

Scores

CVSS v3 7.8
EPSS 0.0001
EPSS Percentile 2.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

Status published
Products (20)
Linux/Linux < 3.10
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - 377fae22a137b6b89f3f32399a58c52cf2325416
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - 71b3c316b22c555d2769126a92b1244b15a9750d
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - aaaaec39ddbcd06770dca7f1adebc3b1242ebe7b
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - d87d5620125a03b1eadbd5df39748215d3db7ddb
Linux/Linux 3.10
Linux/Linux 6.12.83 - 6.12.*
Linux/Linux 6.18.24 - 6.18.*
Linux/Linux 6.19.14 - 6.19.*
Linux/Linux 6.6.136 - 6.6.*
... and 10 more
Published Apr 24, 2026
Tracked Since Apr 24, 2026