PT-2024-36984 · Linux · Linux Kernel

Dan Carpenter · Published 2024-11-14 · Updated 2025-09-26 · CVE-2024-56676

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

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

Description The issue is related to the initialization of variables annotated with free() in the thermal testing code of the Linux kernel. If a function can return before these variables are updated, attempting to free the memory they point to upon function return may cause the kernel to crash. The problem has been fixed in some places in the thermal testing code.

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

Exploit

Improper Initialization

Weakness Enumeration

CWE-909

CWE-665

Related Identifiers

BDU:2026-04396

CVE-2024-56676

Affected Products

Linux Kernel

References · 20

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56676.json · Exploit
• https://git.kernel.org/stable/c/526c132124a62be486bad1701f7e8e92212ccec6 · Patch
• https://linux.oracle.com/errata/ELSA-2025-20480.html · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2024-56676 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-04396 · Security Note
• https://linux.oracle.com/errata/ELSA-2025-20530.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-56676 · Security Note
• https://osv.dev/vulnerability/CVE-2024-56676 · Vendor Advisory
• https://git.kernel.org/stable/c/0104dcdaad3a7afd141e79a5fb817a92ada910ac · Patch
• https://osv.dev/vulnerability/BELL-CVE-2024-56676 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2024-56676 · Security Note
• https://ubuntu.com/security/CVE-2024-56676 · Vendor Advisory
• https://twitter.com/VulmonFeeds/status/1873043577581805648 · Twitter Post
• https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.2 · Note
• https://git.kernel.org/linus/0104dcdaad3a7afd141e79a5fb817a92ada910ac · Note