Linux Kernel up to 6.9.3 BCS deadlock

CVSS Meta Temp Score
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CTI Interest Score
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5.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.9.3 and classified as critical. The impacted element is an unknown function of the component BCS Handler. Executing a manipulation can lead to deadlock. This vulnerability appears as CVE-2024-37026. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 6.9.3 and classified as critical. This vulnerability affects an unknown code of the component BCS Handler. The manipulation with an unknown input leads to a deadlock vulnerability. The CWE definition for the vulnerability is CWE-833. The product contains multiple threads or executable segments that are waiting for each other to release a necessary lock, resulting in deadlock. As an impact it is known to affect availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: drm/xe: Only use reserved BCS instances for usm migrate exec queue The GuC context scheduling queue is 2 entires deep, thus it is possible for a migration job to be stuck behind a fault if migration exec queue shares engines with user jobs. This can deadlock as the migrate exec queue is required to service page faults. Avoid deadlock by only using reserved BCS instances for usm migrate exec queue. (cherry picked from commit 04f4a70a183a688a60fe3882d6e4236ea02cfc67)

The advisory is available at git.kernel.org. This vulnerability was named CVE-2024-37026. The exploitation appears to be difficult. The technical details are unknown and an exploit is not available.

Upgrading to version 6.9.4 eliminates this vulnerability. Applying the patch 92deed4a9bfd/c8ea2c31f5ea 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

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 5.0

VulDB Base Score: 4.8
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Deadlock
CWE: CWE-833 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 6.9.4
Patch: 92deed4a9bfd/c8ea2c31f5ea

Timelineinfo

06/24/2024 🔍
06/24/2024 +0 days 🔍
10/03/2025 +466 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2024-37026 (🔍)
GCVE (CVE): GCVE-0-2024-37026
GCVE (VulDB): GCVE-100-269518

Entryinfo

Created: 06/24/2024 16:40
Updated: 10/03/2025 18:37
Changes: 06/24/2024 16:40 (56), 10/03/2025 18:37 (13)
Complete: 🔍
Cache ID: 216::103

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