PT-2024-36933 · Linux+2 · Linux Kernel+2

Published 2024-12-03 · Updated 2025-04-01 · CVE-2024-56624

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 iommufd component in the Linux kernel. It involves a problem with the fput() function, which calls the file->f op->release operation, releasing the fault object and ictx. This results in imbalanced refcounts, leading to memory leaks and warnings. The warnings include refcount t: decrement hit 0; leaking memory and imbalanced put on file reference count. The issue is resolved by dropping two lines of code to fix the warnings.

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

Exploit

Memory Leak

RCE

Weakness Enumeration

CWE-401

CWE-20

Related Identifiers

BDU:2026-04395

CVE-2024-56624

OESA-2025-1032

OESA-2025-1036

USN-7379-1

USN-7379-2

USN-7380-1

USN-7381-1

USN-7382-1

Affected Products

Linuxmint

Linux Kernel

Ubuntu

References · 408

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56624.json · Exploit
• https://ubuntu.com/security/CVE-2024-56639 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-56593 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-56602 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-56594 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-36476 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-56659 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-56580 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-56588 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-49906 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-53147 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-56538 · Security Note
• https://ubuntu.com/security/CVE-2024-57791 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-57799 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-52319 · Vendor Advisory