PT-2025-36275 · Linux · Linux Kernel

Published 2025-09-05 · Updated 2025-09-06 · CVE-2025-39680

Positive Technologies · (AI Summary)

Name of the Vulnerable Software and Affected Versions:

Linux kernel (affected versions not specified)

Description:

The Linux kernel contains an out-of-bounds bug in the `rtl9300 i2c smbus xfer` function. The `data->block[0]` variable, sourced from user input, lacks proper validation, potentially leading to a buffer overflow. The issue is addressed by verifying the value of `data->block[0]` before use.

Recommendations:

At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Related Identifiers

CVE-2025-39680

Affected Products

Linux Kernel

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2025-39680 · Security Note
• https://git.kernel.org/stable/c/071e43fcba5ddd9a7813e6cc0aa10299eae41b21 · Note
• https://twitter.com/CVEnew/status/1964195473268568168 · Twitter Post
• https://git.kernel.org/stable/c/57f312b955938fc4663f430cb57a71f2414f601b · Note