VDB-258885 · CVE-2024-26655 · Nessus 304560

Linux Kernel up to 6.9-rc1 posix_clock_open memory leak

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5.5	$0-$5k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in Linux Kernel up to 6.9-rc1. Affected by this vulnerability is the function posix_clock_open. Performing a manipulation results in memory leak. This vulnerability is known as CVE-2024-26655. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Linux Kernel up to 6.9-rc1. This affects the function posix_clock_open. The manipulation with an unknown input leads to a memory leak vulnerability. CWE is classifying the issue as CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. This is going to have an impact on availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: Fix memory leak in posix_clock_open() If the clk ops.open() function returns an error, we don't release the pccontext we allocated for this clock. Re-organize the code slightly to make it all more obvious.

The advisory is shared at git.kernel.org. This vulnerability is uniquely identified as CVE-2024-26655 since 02/19/2024. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 304560 (Oracle Linux 8 / 9 : Unbreakable Enterprise kernel (ELSA-2026-50171)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.9-rc2 eliminates this vulnerability. Applying the patch 5b4cdd9c5676 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (304560). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Operating System

Vendor

Linux

Name

Kernel

Version

6.9-rc1

License

open-source

Website

Vendor: https://www.kernel.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory leak
CWE: CWE-401 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 304560
Nessus Name: Oracle Linux 8 / 9 : Unbreakable Enterprise kernel (ELSA-2026-50171)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 6.9-rc2
Patch: 5b4cdd9c5676

Timelineinfo

02/19/2024 🔍
04/01/2024 +41 days 🔍
04/01/2024 +0 days 🔍
04/02/2026 +731 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2024-26655 (🔍)
GCVE (CVE): GCVE-0-2024-26655
GCVE (VulDB): GCVE-100-258885

Entryinfo

Created: 04/01/2024 18:36
Updated: 04/02/2026 06:18
Changes: 04/01/2024 18:36 (57), 01/07/2025 21:59 (12), 04/02/2026 06:18 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.