PT-2025-35955 · Linux+1 · Linux Kernel+1

Published 2025-07-19 · Updated 2025-09-04 · CVE-2025-38682

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A double-free vulnerability exists in the i2c core, specifically within the i2c unregister device() function. This issue occurs when an i2c client has a software fwnode as its primary node. The fwnode handle put() function is called on the software node twice, once directly and again within device remove software node(), leading to a use-after-free condition and potential system instability. The vulnerability was addressed by preventing the call to fwnode handle put() when the primary fwnode is a software node.

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

Exploit

Use After Free

Double Free

Weakness Enumeration

CWE-416

CWE-415

Related Identifiers

BDU:2026-02860

CVE-2025-38682

Affected Products

Astra Linux

Linux Kernel

References · 14

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38682.json · Exploit
• https://cve.org/CVERecord?id=CVE-2025-38682 · Security Note
• https://osv.dev/vulnerability/CVE-2025-38682 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-38682 · Security Note
• https://git.kernel.org/stable/c/ffe02f7c4e36090154646612e67d331832f92037 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-38682 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38682 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-02860 · Security Note
• https://git.kernel.org/stable/c/1c24e5fc0c7096e00c202a6a3e0c342c1afb47c2 · Patch
• https://lore.kernel.org/linux-cve-announce/2025090446-CVE-2025-38682-a90a@gregkh · Note
• https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.16.2 · Note
• https://twitter.com/CVEnew/status/1963644660103942445 · Twitter Post
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note
• https://git.kernel.org/linus/1c24e5fc0c7096e00c202a6a3e0c342c1afb47c2 · Note