PT-2024-26742 · Linux+2 · Linux Kernel+2

Ben Greear · Published 2024-03-07 · Updated 2025-09-26 · CVE-2024-35793

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 debugfs feature in the Linux kernel, where a logic error in the wait/cancellation handling during remove operations can cause deadlocks. Specifically, when the refcount hits zero, the completion can be finished without waiting, but if it doesn't, all cancellations need to be triggered. However, the current implementation can never enter the loop to trigger these cancellations. This problem occurs even when debugfs cancellations are used, and it happens during concurrent debugfs remove operations while files are being accessed.

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

Exploit

Improper Locking

Weakness Enumeration

CWE-833

CWE-667

Related Identifiers

BDU:2026-04481

CVE-2024-35793

USN-6816-1

USN-6817-1

USN-6817-2

USN-6817-3

USN-6878-1

Affected Products

Linuxmint

Linux Kernel

Ubuntu

References · 251

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/35xxx/CVE-2024-35793.json · Exploit
• https://ubuntu.com/security/CVE-2024-27048 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52644 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26899 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-27068 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26938 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-35793 · Security Note
• https://ubuntu.com/security/CVE-2024-27043 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26814 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-35797 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-35805 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-35811 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26954 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26968 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26973 · Vendor Advisory