PT-2024-21875 · Linux+7 · Linux Kernel+7

Kees Cook · Published 2024-02-22 · Updated 2026-04-20 · CVE-2024-27389

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 arises when unloading a modular pstore backend with records in pstorefs, triggering a dput() double-drop warning. This warning occurs due to the incorrect use of d drop() and dput() as mentioned in Documentation/filesystems/vfs.rst, leading to a reference counting problem. The solution involves using d invalidate() and updating the code to not check for error codes that can never happen.

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

Exploit

DoS

Double Free

Integer Overflow

Weakness Enumeration

CWE-415

CWE-190

Related Identifiers

ALSA-2025_12746

ALSA-2025_12752

ALSA-2025_12753

ALSA-2025_16880

AZL-67496

BDU:2026-04308

CVE-2024-27389

INFSA-2024_9315

OESA-2024-1679

OESA-2024-1680

OESA-2024-1681

OESA-2024-1682

OPENSUSE-SU-2024_1641-1

OPENSUSE-SU-2024_1644-1

OPENSUSE-SU-2024_1659-1

OPENSUSE-SU-2024_1663-1

RHSA-2024:9315

RHSA-2024_9315

SUSE-SU-2024:1641-1

SUSE-SU-2024:1644-1

SUSE-SU-2024:1647-1

SUSE-SU-2024:1659-1

SUSE-SU-2024:1663-1

SUSE-SU-2024:2135-1

SUSE-SU-2024:2203-1

SUSE-SU-2024:2973-1

SUSE-SU-2025:20008-1

SUSE-SU-2025:20028-1

SUSE-SU-2025:20166-1

SUSE-SU-2025:20249-1

USN-6816-1

USN-6817-1

USN-6817-2

USN-6817-3

USN-6878-1

Affected Products

Astra Linux

Debian

Linuxmint

Linux Kernel

Red Hat

Red Os

Suse

Ubuntu

References · 3490

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/27xxx/CVE-2024-27389.json · Exploit
• https://ubuntu.com/security/CVE-2024-26863 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-35815 · Security Note
• https://ubuntu.com/security/CVE-2022-48669 · Vendor Advisory
• https://git.kernel.org/stable/c/a43e0fc5e9134a46515de2f2f8d4100b74e50de3 · Patch
• https://osv.dev/vulnerability/AZL-67496 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-52817 · Security Note
• https://ubuntu.com/security/CVE-2024-27049 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-6817-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26972 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-27033 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26943 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-27035 · Security Note
• https://ubuntu.com/security/notices/USN-6817-2 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-26958 · Security Note