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Vulnerability record · CVE-2026-31627 · published 24 April 2026

CVE-2026-31627: Linux kernel vulnerability

Linux · Linux Kernel

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.

7.8 CVSS 3.1 High EPSS 0.18% · top 93.3%
7.8CVSS 3.1 base score
0.18%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
9References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://git.kernel.org/stable/c/2d262da4bca6fab96e2e709feb95b31b0a9a03a7
https://git.kernel.org/stable/c/377fae22a137b6b89f3f32399a58c52cf2325416 Patch
https://git.kernel.org/stable/c/71b3c316b22c555d2769126a92b1244b15a9750d Patch
https://git.kernel.org/stable/c/8f756a5964396da0fc9e0db33253a5b85dbbcbb6
https://git.kernel.org/stable/c/aaaaec39ddbcd06770dca7f1adebc3b1242ebe7b Patch
https://git.kernel.org/stable/c/c0128c7157d639a931353ea344fb44aad6d6e17a Patch
https://git.kernel.org/stable/c/d87d5620125a03b1eadbd5df39748215d3db7ddb Patch
https://git.kernel.org/stable/c/fa00738ab30b07db1a43b9c85fc56b8cc3b7d197 Patch
https://git.kernel.org/stable/c/fd1650da24ed54c716aa9b69e9bbd8a662e492da

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Source: NIST National Vulnerability Database (record CVE-2026-31627), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.