Linux Kernel up to 6.10.9 uio_hv_generic null pointer dereference

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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.10.9. It has been rated as critical. Affected by this issue is some unknown functionality of the component uio_hv_generic. The manipulation leads to null pointer dereference. This vulnerability is traded as CVE-2024-46739. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 6.10.9. This issue affects an unknown function of the component uio_hv_generic. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: uio_hv_generic: Fix kernel NULL pointer dereference in hv_uio_rescind For primary VM Bus channels, primary_channel pointer is always NULL. This pointer is valid only for the secondary channels. Also, rescind callback is meant for primary channels only. Fix NULL pointer dereference by retrieving the device_obj from the parent for the primary channel.

The advisory is shared at git.kernel.org. The identification of this vulnerability is CVE-2024-46739 since 09/11/2024. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 208053 (Amazon Linux 2 : kernel (ALASKERNEL-5.15-2024-055)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.19.322, 5.4.284, 5.10.226, 5.15.167, 6.1.110, 6.6.51 or 6.10.10 eliminates this vulnerability. Applying the patch 3d414b64ecf6/f38f46da80a2/1d8e020e51ab/3005091cd537/2be373469be1/de6946be9c8b/928e399e84f4/fb1adbd7e50f 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 databases at Tenable (208053) and CERT Bund (WID-SEC-2024-2173). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Debian Linux
  • Google Cloud Platform
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • IBM InfoSphere Guardium
  • Oracle Linux
  • RESF Rocky Linux
  • Open Source Linux Kernel
  • SolarWinds Security Event Manager

Productinfo

Type

Vendor

Name

Version

License

Website

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

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / 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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Nessus ID: 208053
Nessus Name: Amazon Linux 2 : kernel (ALASKERNEL-5.15-2024-055)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 4.19.322/5.4.284/5.10.226/5.15.167/6.1.110/6.6.51/6.10.10
Patch: 3d414b64ecf6/f38f46da80a2/1d8e020e51ab/3005091cd537/2be373469be1/de6946be9c8b/928e399e84f4/fb1adbd7e50f

Timelineinfo

09/11/2024 🔍
09/18/2024 +7 days 🔍
09/18/2024 +0 days 🔍
04/05/2026 +564 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2024-46739 (🔍)
GCVE (CVE): GCVE-0-2024-46739
GCVE (VulDB): GCVE-100-277949
CERT Bund: WID-SEC-2024-2173 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 09/18/2024 11:09
Updated: 04/05/2026 19:46
Changes: 09/18/2024 11:09 (58), 09/21/2024 11:11 (11), 10/03/2024 22:21 (2), 04/05/2026 19:46 (7)
Complete: 🔍
Cache ID: 216::103

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