VDB-271278 · CVE-2024-40926 · GCVE-0-2024-40926

Linux Kernel up to 6.9.5 nouveau hpd_work uninitialized pointer

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5.4	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic was found in Linux Kernel up to 6.9.5. The impacted element is the function hpd_work of the component nouveau. The manipulation results in uninitialized pointer. This vulnerability was named CVE-2024-40926. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as problematic has been found in Linux Kernel up to 6.9.5. Affected is the function hpd_work of the component nouveau. The manipulation with an unknown input leads to a uninitialized pointer vulnerability. CWE is classifying the issue as CWE-824. The product accesses or uses a pointer that has not been initialized. The impact remains unknown. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: drm/nouveau: don't attempt to schedule hpd_work on headless cards If the card doesn't have display hardware, hpd_work and hpd_lock are left uninitialized which causes BUG when attempting to schedule hpd_work on runtime PM resume. Fix it by adding headless flag to DRM and skip any hpd if it's set.

The advisory is available at git.kernel.org. This vulnerability is traded as CVE-2024-40926 since 07/12/2024. Technical details are known, but there is no available exploit.

Upgrading to version 6.9.6 eliminates this vulnerability. Applying the patch 227349998e57/b96a225377b6 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.

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Productinfo

Type

Operating System

Vendor

Linux

Name

Kernel

Version

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: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
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: Uninitialized pointer
CWE: CWE-824 / CWE-908
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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 6.9.6
Patch: 227349998e57/b96a225377b6

Timelineinfo

07/12/2024 🔍
07/12/2024 +0 days 🔍
07/12/2024 +0 days 🔍
03/06/2025 +237 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2024-40926 (🔍)
GCVE (CVE): GCVE-0-2024-40926
GCVE (VulDB): GCVE-100-271278

Entryinfo

Created: 07/12/2024 16:51
Updated: 03/06/2025 14:38
Changes: 07/12/2024 16:51 (58), 03/06/2025 14:38 (11)
Complete: 🔍
Cache ID: 216::103